diff options
Diffstat (limited to 'drivers')
69 files changed, 555 insertions, 670 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 1adf9f815652..d77515d8382c 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -373,17 +373,6 @@ config RTC_DRV_MAX77686 This driver can also be built as a module. If so, the module will be called rtc-max77686. -config RTC_DRV_MESON_VRTC - tristate "Amlogic Meson Virtual RTC" - depends on ARCH_MESON || COMPILE_TEST - default m if ARCH_MESON - help - If you say yes here you will get support for the - Virtual RTC of Amlogic SoCs. - - This driver can also be built as a module. If so, the module - will be called rtc-meson-vrtc. - config RTC_DRV_RK808 tristate "Rockchip RK805/RK808/RK809/RK817/RK818 RTC" depends on MFD_RK808 @@ -1337,8 +1326,6 @@ config RTC_DRV_IMXDI config RTC_DRV_FSL_FTM_ALARM tristate "Freescale FlexTimer alarm timer" depends on ARCH_LAYERSCAPE || SOC_LS1021A - select FSL_RCPM - default y help For the FlexTimer in LS1012A, LS1021A, LS1028A, LS1043A, LS1046A, LS1088A, LS208xA, we can use FTM as the wakeup source. @@ -1360,6 +1347,17 @@ config RTC_DRV_MESON This driver can also be built as a module, if so, the module will be called "rtc-meson". +config RTC_DRV_MESON_VRTC + tristate "Amlogic Meson Virtual RTC" + depends on ARCH_MESON || COMPILE_TEST + default m if ARCH_MESON + help + If you say yes here you will get support for the + Virtual RTC of Amlogic SoCs. + + This driver can also be built as a module. If so, the module + will be called rtc-meson-vrtc. + config RTC_DRV_OMAP tristate "TI OMAP Real Time Clock" depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST @@ -1459,6 +1457,7 @@ config RTC_DRV_PL031 config RTC_DRV_AT91RM9200 tristate "AT91RM9200 or some AT91SAM9 RTC" depends on ARCH_AT91 || COMPILE_TEST + depends on OF help Driver for the internal RTC (Realtime Clock) module found on Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips @@ -1510,9 +1509,9 @@ config RTC_DRV_PXA depends on ARCH_PXA select RTC_DRV_SA1100 help - If you say Y here you will get access to the real time clock - built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs - consisting of an SA1100 compatible RTC and the extended PXA RTC. + If you say Y here you will get access to the real time clock + built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs + consisting of an SA1100 compatible RTC and the extended PXA RTC. This RTC driver uses PXA RTC registers available since pxa27x series (RDxR, RYxR) instead of legacy RCNR, RTAR. diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index c93ef33b01d3..794a4f036b99 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -70,7 +70,7 @@ static int rtc_valid_range(struct rtc_device *rtc, struct rtc_time *tm) time64_t time = rtc_tm_to_time64(tm); time64_t range_min = rtc->set_start_time ? rtc->start_secs : rtc->range_min; - time64_t range_max = rtc->set_start_time ? + timeu64_t range_max = rtc->set_start_time ? (rtc->start_secs + rtc->range_max - rtc->range_min) : rtc->range_max; @@ -125,7 +125,7 @@ EXPORT_SYMBOL_GPL(rtc_read_time); int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm) { - int err; + int err, uie; err = rtc_valid_tm(tm); if (err != 0) @@ -137,6 +137,17 @@ int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm) rtc_subtract_offset(rtc, tm); +#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL + uie = rtc->uie_rtctimer.enabled || rtc->uie_irq_active; +#else + uie = rtc->uie_rtctimer.enabled; +#endif + if (uie) { + err = rtc_update_irq_enable(rtc, 0); + if (err) + return err; + } + err = mutex_lock_interruptible(&rtc->ops_lock); if (err) return err; @@ -153,6 +164,12 @@ int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm) /* A timer might have just expired */ schedule_work(&rtc->irqwork); + if (uie) { + err = rtc_update_irq_enable(rtc, 1); + if (err) + return err; + } + trace_rtc_set_time(rtc_tm_to_time64(tm), err); return err; } @@ -528,7 +545,7 @@ EXPORT_SYMBOL_GPL(rtc_alarm_irq_enable); int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled) { - int err; + int rc = 0, err; err = mutex_lock_interruptible(&rtc->ops_lock); if (err) @@ -553,7 +570,9 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled) struct rtc_time tm; ktime_t now, onesec; - __rtc_read_time(rtc, &tm); + rc = __rtc_read_time(rtc, &tm); + if (rc) + goto out; onesec = ktime_set(1, 0); now = rtc_tm_to_ktime(tm); rtc->uie_rtctimer.node.expires = ktime_add(now, onesec); @@ -565,6 +584,16 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled) out: mutex_unlock(&rtc->ops_lock); + + /* + * __rtc_read_time() failed, this probably means that the RTC time has + * never been set or less probably there is a transient error on the + * bus. In any case, avoid enabling emulation has this will fail when + * reading the time too. + */ + if (rc) + return rc; + #ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL /* * Enable emulation if the driver returned -EINVAL to signal that it has @@ -581,6 +610,8 @@ EXPORT_SYMBOL_GPL(rtc_update_irq_enable); /** * rtc_handle_legacy_irq - AIE, UIE and PIE event hook * @rtc: pointer to the rtc device + * @num: number of occurence of the event + * @mode: type of the event, RTC_AF, RTC_UF of RTC_PF * * This function is called when an AIE, UIE or PIE mode interrupt * has occurred (or been emulated). @@ -761,8 +792,8 @@ int rtc_irq_set_freq(struct rtc_device *rtc, int freq) /** * rtc_timer_enqueue - Adds a rtc_timer to the rtc_device timerqueue - * @rtc rtc device - * @timer timer being added. + * @rtc: rtc device + * @timer: timer being added. * * Enqueues a timer onto the rtc devices timerqueue and sets * the next alarm event appropriately. @@ -821,8 +852,8 @@ static void rtc_alarm_disable(struct rtc_device *rtc) /** * rtc_timer_remove - Removes a rtc_timer from the rtc_device timerqueue - * @rtc rtc device - * @timer timer being removed. + * @rtc: rtc device + * @timer: timer being removed. * * Removes a timer onto the rtc devices timerqueue and sets * the next alarm event appropriately. @@ -859,8 +890,7 @@ static void rtc_timer_remove(struct rtc_device *rtc, struct rtc_timer *timer) /** * rtc_timer_do_work - Expires rtc timers - * @rtc rtc device - * @timer timer being removed. + * @work: work item * * Expires rtc timers. Reprograms next alarm event if needed. * Called via worktask. @@ -993,8 +1023,8 @@ void rtc_timer_cancel(struct rtc_device *rtc, struct rtc_timer *timer) /** * rtc_read_offset - Read the amount of rtc offset in parts per billion - * @ rtc: rtc device to be used - * @ offset: the offset in parts per billion + * @rtc: rtc device to be used + * @offset: the offset in parts per billion * * see below for details. * @@ -1022,8 +1052,8 @@ int rtc_read_offset(struct rtc_device *rtc, long *offset) /** * rtc_set_offset - Adjusts the duration of the average second - * @ rtc: rtc device to be used - * @ offset: the offset in parts per billion + * @rtc: rtc device to be used + * @offset: the offset in parts per billion * * Some rtc's allow an adjustment to the average duration of a second * to compensate for differences in the actual clock rate due to temperature, diff --git a/drivers/rtc/rtc-ab-b5ze-s3.c b/drivers/rtc/rtc-ab-b5ze-s3.c index cdad6f00debf..811fe2005488 100644 --- a/drivers/rtc/rtc-ab-b5ze-s3.c +++ b/drivers/rtc/rtc-ab-b5ze-s3.c @@ -900,16 +900,6 @@ err: return ret; } -static int abb5zes3_remove(struct i2c_client *client) -{ - struct abb5zes3_rtc_data *rtc_data = dev_get_drvdata(&client->dev); - - if (rtc_data->irq > 0) - device_init_wakeup(&client->dev, false); - - return 0; -} - #ifdef CONFIG_PM_SLEEP static int abb5zes3_rtc_suspend(struct device *dev) { @@ -956,7 +946,6 @@ static struct i2c_driver abb5zes3_driver = { .of_match_table = of_match_ptr(abb5zes3_dt_match), }, .probe = abb5zes3_probe, - .remove = abb5zes3_remove, .id_table = abb5zes3_id, }; module_i2c_driver(abb5zes3_driver); diff --git a/drivers/rtc/rtc-armada38x.c b/drivers/rtc/rtc-armada38x.c index 9351bd52477e..94d7c22fc4f3 100644 --- a/drivers/rtc/rtc-armada38x.c +++ b/drivers/rtc/rtc-armada38x.c @@ -74,7 +74,7 @@ struct armada38x_rtc { int irq; bool initialized; struct value_to_freq *val_to_freq; - struct armada38x_rtc_data *data; + const struct armada38x_rtc_data *data; }; #define ALARM1 0 @@ -501,17 +501,14 @@ static __init int armada38x_rtc_probe(struct platform_device *pdev) { struct resource *res; struct armada38x_rtc *rtc; - const struct of_device_id *match; - - match = of_match_device(armada38x_rtc_of_match_table, &pdev->dev); - if (!match) - return -ENODEV; rtc = devm_kzalloc(&pdev->dev, sizeof(struct armada38x_rtc), GFP_KERNEL); if (!rtc) return -ENOMEM; + rtc->data = of_device_get_match_data(&pdev->dev); + rtc->val_to_freq = devm_kcalloc(&pdev->dev, SAMPLE_NR, sizeof(struct value_to_freq), GFP_KERNEL); if (!rtc->val_to_freq) @@ -553,7 +550,6 @@ static __init int armada38x_rtc_probe(struct platform_device *pdev) */ rtc->rtc_dev->ops = &armada38x_rtc_ops_noirq; } - rtc->data = (struct armada38x_rtc_data *)match->data; /* Update RTC-MBUS bridge timing parameters */ rtc->data->update_mbus_timing(rtc); diff --git a/drivers/rtc/rtc-asm9260.c b/drivers/rtc/rtc-asm9260.c index 10413d803caa..10064bdabdff 100644 --- a/drivers/rtc/rtc-asm9260.c +++ b/drivers/rtc/rtc-asm9260.c @@ -245,7 +245,6 @@ static int asm9260_rtc_probe(struct platform_device *pdev) { struct asm9260_rtc_priv *priv; struct device *dev = &pdev->dev; - struct resource *res; int irq_alarm, ret; u32 ccr; @@ -260,8 +259,7 @@ static int asm9260_rtc_probe(struct platform_device *pdev) if (irq_alarm < 0) return irq_alarm; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - priv->iobase = devm_ioremap_resource(dev, res); + priv->iobase = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(priv->iobase)) return PTR_ERR(priv->iobase); diff --git a/drivers/rtc/rtc-aspeed.c b/drivers/rtc/rtc-aspeed.c index e351d35b29a3..eacdd0637cce 100644 --- a/drivers/rtc/rtc-aspeed.c +++ b/drivers/rtc/rtc-aspeed.c @@ -85,14 +85,12 @@ static const struct rtc_class_ops aspeed_rtc_ops = { static int aspeed_rtc_probe(struct platform_device *pdev) { struct aspeed_rtc *rtc; - struct resource *res; rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL); if (!rtc) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - rtc->base = devm_ioremap_resource(&pdev->dev, res); + rtc->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtc->base)) return PTR_ERR(rtc->base); diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c index d119c6e6353e..3b833e02a657 100644 --- a/drivers/rtc/rtc-at91rm9200.c +++ b/drivers/rtc/rtc-at91rm9200.c @@ -319,7 +319,6 @@ static const struct at91_rtc_config at91sam9x5_config = { .use_shadow_imr = true, }; -#ifdef CONFIG_OF static const struct of_device_id at91_rtc_dt_ids[] = { { .compatible = "atmel,at91rm9200-rtc", @@ -332,22 +331,6 @@ static const struct of_device_id at91_rtc_dt_ids[] = { } }; MODULE_DEVICE_TABLE(of, at91_rtc_dt_ids); -#endif - -static const struct at91_rtc_config * -at91_rtc_get_config(struct platform_device *pdev) -{ - const struct of_device_id *match; - - if (pdev->dev.of_node) { - match = of_match_node(at91_rtc_dt_ids, pdev->dev.of_node); - if (!match) - return NULL; - return (const struct at91_rtc_config *)match->data; - } - - return &at91rm9200_config; -} static const struct rtc_class_ops at91_rtc_ops = { .read_time = at91_rtc_readtime, @@ -367,7 +350,7 @@ static int __init at91_rtc_probe(struct platform_device *pdev) struct resource *regs; int ret = 0; - at91_rtc_config = at91_rtc_get_config(pdev); + at91_rtc_config = of_device_get_match_data(&pdev->dev); if (!at91_rtc_config) return -ENODEV; diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c index bb3ba7bfe6a5..e39e89867d29 100644 --- a/drivers/rtc/rtc-at91sam9.c +++ b/drivers/rtc/rtc-at91sam9.c @@ -334,7 +334,6 @@ static const struct rtc_class_ops at91_rtc_ops = { */ static int at91_rtc_probe(struct platform_device *pdev) { - struct resource *r; struct sam9_rtc *rtc; int ret, irq; u32 mr; @@ -358,8 +357,7 @@ static int at91_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, rtc); - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - rtc->rtt = devm_ioremap_resource(&pdev->dev, r); + rtc->rtt = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtc->rtt)) return PTR_ERR(rtc->rtt); diff --git a/drivers/rtc/rtc-bd70528.c b/drivers/rtc/rtc-bd70528.c index 7744333b0f40..627037aa66a8 100644 --- a/drivers/rtc/rtc-bd70528.c +++ b/drivers/rtc/rtc-bd70528.c @@ -491,3 +491,4 @@ module_platform_driver(bd70528_rtc); MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>"); MODULE_DESCRIPTION("BD70528 RTC driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:bd70528-rtc"); diff --git a/drivers/rtc/rtc-brcmstb-waketimer.c b/drivers/rtc/rtc-brcmstb-waketimer.c index 3e9800f9878a..4fee57c51280 100644 --- a/drivers/rtc/rtc-brcmstb-waketimer.c +++ b/drivers/rtc/rtc-brcmstb-waketimer.c @@ -200,7 +200,6 @@ static int brcmstb_waketmr_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct brcmstb_waketmr *timer; - struct resource *res; int ret; timer = devm_kzalloc(dev, sizeof(*timer), GFP_KERNEL); @@ -210,8 +209,7 @@ static int brcmstb_waketmr_probe(struct platform_device *pdev) platform_set_drvdata(pdev, timer); timer->dev = dev; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - timer->base = devm_ioremap_resource(dev, res); + timer->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(timer->base)) return PTR_ERR(timer->base); @@ -277,6 +275,7 @@ static int brcmstb_waketmr_remove(struct platform_device *pdev) struct brcmstb_waketmr *timer = dev_get_drvdata(&pdev->dev); unregister_reboot_notifier(&timer->reboot_notifier); + clk_disable_unprepare(timer->clk); return 0; } diff --git a/drivers/rtc/rtc-cadence.c b/drivers/rtc/rtc-cadence.c index 592aae23cbaf..595d5d252850 100644 --- a/drivers/rtc/rtc-cadence.c +++ b/drivers/rtc/rtc-cadence.c @@ -255,7 +255,6 @@ static const struct rtc_class_ops cdns_rtc_ops = { static int cdns_rtc_probe(struct platform_device *pdev) { struct cdns_rtc *crtc; - struct resource *res; int ret; unsigned long ref_clk_freq; @@ -263,8 +262,7 @@ static int cdns_rtc_probe(struct platform_device *pdev) if (!crtc) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - crtc->regs = devm_ioremap_resource(&pdev->dev, res); + crtc->regs = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(crtc->regs)) return PTR_ERR(crtc->regs); diff --git a/drivers/rtc/rtc-coh901331.c b/drivers/rtc/rtc-coh901331.c index 4ac850837153..da59917c9ee8 100644 --- a/drivers/rtc/rtc-coh901331.c +++ b/drivers/rtc/rtc-coh901331.c @@ -164,15 +164,13 @@ static int __init coh901331_probe(struct platform_device *pdev) { int ret; struct coh901331_port *rtap; - struct resource *res; rtap = devm_kzalloc(&pdev->dev, sizeof(struct coh901331_port), GFP_KERNEL); if (!rtap) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - rtap->virtbase = devm_ioremap_resource(&pdev->dev, res); + rtap->virtbase = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtap->virtbase)) return PTR_ERR(rtap->virtbase); diff --git a/drivers/rtc/rtc-cros-ec.c b/drivers/rtc/rtc-cros-ec.c index 6909e01936d9..d043d30f05bc 100644 --- a/drivers/rtc/rtc-cros-ec.c +++ b/drivers/rtc/rtc-cros-ec.c @@ -107,11 +107,7 @@ static int cros_ec_rtc_set_time(struct device *dev, struct rtc_time *tm) struct cros_ec_rtc *cros_ec_rtc = dev_get_drvdata(dev); struct cros_ec_device *cros_ec = cros_ec_rtc->cros_ec; int ret; - time64_t time; - - time = rtc_tm_to_time64(tm); - if (time < 0 || time > U32_MAX) - return -EINVAL; + time64_t time = rtc_tm_to_time64(tm); ret = cros_ec_rtc_set(cros_ec, EC_CMD_RTC_SET_VALUE, (u32)time); if (ret < 0) { @@ -348,14 +344,16 @@ static int cros_ec_rtc_probe(struct platform_device *pdev) return ret; } - cros_ec_rtc->rtc = devm_rtc_device_register(&pdev->dev, DRV_NAME, - &cros_ec_rtc_ops, - THIS_MODULE); - if (IS_ERR(cros_ec_rtc->rtc)) { - ret = PTR_ERR(cros_ec_rtc->rtc); - dev_err(&pdev->dev, "failed to register rtc device\n"); + cros_ec_rtc->rtc = devm_rtc_allocate_device(&pdev->dev); + if (IS_ERR(cros_ec_rtc->rtc)) + return PTR_ERR(cros_ec_rtc->rtc); + + cros_ec_rtc->rtc->ops = &cros_ec_rtc_ops; + cros_ec_rtc->rtc->range_max = U32_MAX; + + ret = rtc_register_device(cros_ec_rtc->rtc); + if (ret) return ret; - } /* Get RTC events from the EC. */ cros_ec_rtc->notifier.notifier_call = cros_ec_rtc_event; diff --git a/drivers/rtc/rtc-da9063.c b/drivers/rtc/rtc-da9063.c index 15908d51b1cb..046b1d4c3dae 100644 --- a/drivers/rtc/rtc-da9063.c +++ b/drivers/rtc/rtc-da9063.c @@ -483,6 +483,9 @@ static int da9063_rtc_probe(struct platform_device *pdev) rtc->rtc_dev->uie_unsupported = 1; irq_alarm = platform_get_irq_byname(pdev, "ALARM"); + if (irq_alarm < 0) + return irq_alarm; + ret = devm_request_threaded_irq(&pdev->dev, irq_alarm, NULL, da9063_alarm_event, IRQF_TRIGGER_LOW | IRQF_ONESHOT, diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c index d8e0db2e7fc6..390b7351e0fe 100644 --- a/drivers/rtc/rtc-davinci.c +++ b/drivers/rtc/rtc-davinci.c @@ -469,7 +469,6 @@ static int __init davinci_rtc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct davinci_rtc *davinci_rtc; - struct resource *res; int ret = 0; davinci_rtc = devm_kzalloc(&pdev->dev, sizeof(struct davinci_rtc), GFP_KERNEL); @@ -480,8 +479,7 @@ static int __init davinci_rtc_probe(struct platform_device *pdev) if (davinci_rtc->irq < 0) return davinci_rtc->irq; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - davinci_rtc->base = devm_ioremap_resource(dev, res); + davinci_rtc->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(davinci_rtc->base)) return PTR_ERR(davinci_rtc->base); diff --git a/drivers/rtc/rtc-digicolor.c b/drivers/rtc/rtc-digicolor.c index 0aecc3f8e721..200d85b01e8b 100644 --- a/drivers/rtc/rtc-digicolor.c +++ b/drivers/rtc/rtc-digicolor.c @@ -175,7 +175,6 @@ static irqreturn_t dc_rtc_irq(int irq, void *dev_id) static int __init dc_rtc_probe(struct platform_device *pdev) { - struct resource *res; struct dc_rtc *rtc; int irq, ret; @@ -183,8 +182,7 @@ static int __init dc_rtc_probe(struct platform_device *pdev) if (!rtc) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - rtc->regs = devm_ioremap_resource(&pdev->dev, res); + rtc->regs = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtc->regs)) return PTR_ERR(rtc->regs); diff --git a/drivers/rtc/rtc-ds1216.c b/drivers/rtc/rtc-ds1216.c index b225bcfef50b..7eeb3f359de8 100644 --- a/drivers/rtc/rtc-ds1216.c +++ b/drivers/rtc/rtc-ds1216.c @@ -137,7 +137,6 @@ static const struct rtc_class_ops ds1216_rtc_ops = { static int __init ds1216_rtc_probe(struct platform_device *pdev) { - struct resource *res; struct ds1216_priv *priv; u8 dummy[8]; @@ -147,8 +146,7 @@ static int __init ds1216_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, priv); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - priv->ioaddr = devm_ioremap_resource(&pdev->dev, res); + priv->ioaddr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(priv->ioaddr)) return PTR_ERR(priv->ioaddr); diff --git a/drivers/rtc/rtc-ds1286.c b/drivers/rtc/rtc-ds1286.c index a06508b6c404..7acf849d4902 100644 --- a/drivers/rtc/rtc-ds1286.c +++ b/drivers/rtc/rtc-ds1286.c @@ -323,15 +323,13 @@ static const struct rtc_class_ops ds1286_ops = { static int ds1286_probe(struct platform_device *pdev) { struct rtc_device *rtc; - struct resource *res; struct ds1286_priv *priv; priv = devm_kzalloc(&pdev->dev, sizeof(struct ds1286_priv), GFP_KERNEL); if (!priv) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - priv->rtcregs = devm_ioremap_resource(&pdev->dev, res); + priv->rtcregs = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(priv->rtcregs)) return PTR_ERR(priv->rtcregs); diff --git a/drivers/rtc/rtc-ds1302.c b/drivers/rtc/rtc-ds1302.c index 4faa24c88af5..b3de6d2e680a 100644 --- a/drivers/rtc/rtc-ds1302.c +++ b/drivers/rtc/rtc-ds1302.c @@ -15,8 +15,6 @@ #include <linux/rtc.h> #include <linux/spi/spi.h> -#define DRV_NAME "rtc-ds1302" - #define RTC_CMD_READ 0x81 /* Read command */ #define RTC_CMD_WRITE 0x80 /* Write command */ diff --git a/drivers/rtc/rtc-ds1343.c b/drivers/rtc/rtc-ds1343.c index fa6de31d5793..d21004a68ee0 100644 --- a/drivers/rtc/rtc-ds1343.c +++ b/drivers/rtc/rtc-ds1343.c @@ -78,42 +78,19 @@ struct ds1343_priv { struct spi_device *spi; struct rtc_device *rtc; struct regmap *map; - struct mutex mutex; - unsigned int irqen; int irq; - int alarm_sec; - int alarm_min; - int alarm_hour; - int alarm_mday; }; -static int ds1343_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) -{ - switch (cmd) { -#ifdef RTC_SET_CHARGE - case RTC_SET_CHARGE: - { - int val; - - if (copy_from_user(&val, (int __user *)arg, sizeof(int))) - return -EFAULT; - - return regmap_write(priv->map, DS1343_TRICKLE_REG, val); - } - break; -#endif - } - - return -ENOIOCTLCMD; -} - static ssize_t ds1343_show_glitchfilter(struct device *dev, struct device_attribute *attr, char *buf) { - struct ds1343_priv *priv = dev_get_drvdata(dev); + struct ds1343_priv *priv = dev_get_drvdata(dev->parent); int glitch_filt_status, data; + int res; - regmap_read(priv->map, DS1343_CONTROL_REG, &data); + res = regmap_read(priv->map, DS1343_CONTROL_REG, &data); + if (res) + return res; glitch_filt_status = !!(data & DS1343_EGFIL); @@ -127,21 +104,19 @@ static ssize_t ds1343_store_glitchfilter(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct ds1343_priv *priv = dev_get_drvdata(dev); - int data; - - regmap_read(priv->map, DS1343_CONTROL_REG, &data); + struct ds1343_priv *priv = dev_get_drvdata(dev->parent); + int data = 0; + int res; if (strncmp(buf, "enabled", 7) == 0) - data |= DS1343_EGFIL; - - else if (strncmp(buf, "disabled", 8) == 0) - data &= ~(DS1343_EGFIL); - - else + data = DS1343_EGFIL; + else if (strncmp(buf, "disabled", 8)) return -EINVAL; - regmap_write(priv->map, DS1343_CONTROL_REG, data); + res = regmap_update_bits(priv->map, DS1343_CONTROL_REG, + DS1343_EGFIL, data); + if (res) + return res; return count; } @@ -168,11 +143,13 @@ static int ds1343_nvram_read(void *priv, unsigned int off, void *val, static ssize_t ds1343_show_tricklecharger(struct device *dev, struct device_attribute *attr, char *buf) { - struct ds1343_priv *priv = dev_get_drvdata(dev); - int data; + struct ds1343_priv *priv = dev_get_drvdata(dev->parent); + int res, data; char *diodes = "disabled", *resistors = " "; - regmap_read(priv->map, DS1343_TRICKLE_REG, &data); + res = regmap_read(priv->map, DS1343_TRICKLE_REG, &data); + if (res) + return res; if ((data & 0xf0) == DS1343_TRICKLE_MAGIC) { switch (data & 0x0c) { @@ -209,28 +186,15 @@ static ssize_t ds1343_show_tricklecharger(struct device *dev, static DEVICE_ATTR(trickle_charger, S_IRUGO, ds1343_show_tricklecharger, NULL); -static int ds1343_sysfs_register(struct device *dev) -{ - int err; - - err = device_create_file(dev, &dev_attr_glitch_filter); - if (err) - return err; - - err = device_create_file(dev, &dev_attr_trickle_charger); - if (!err) - return 0; - - device_remove_file(dev, &dev_attr_glitch_filter); - - return err; -} +static struct attribute *ds1343_attrs[] = { + &dev_attr_glitch_filter.attr, + &dev_attr_trickle_charger.attr, + NULL +}; -static void ds1343_sysfs_unregister(struct device *dev) -{ - device_remove_file(dev, &dev_attr_glitch_filter); - device_remove_file(dev, &dev_attr_trickle_charger); -} +static const struct attribute_group ds1343_attr_group = { + .attrs = ds1343_attrs, +}; static int ds1343_read_time(struct device *dev, struct rtc_time *dt) { @@ -256,144 +220,78 @@ static int ds1343_read_time(struct device *dev, struct rtc_time *dt) static int ds1343_set_time(struct device *dev, struct rtc_time *dt) { struct ds1343_priv *priv = dev_get_drvdata(dev); - int res; - - res = regmap_write(priv->map, DS1343_SECONDS_REG, - bin2bcd(dt->tm_sec)); - if (res) - return res; - - res = regmap_write(priv->map, DS1343_MINUTES_REG, - bin2bcd(dt->tm_min)); - if (res) - return res; - - res = regmap_write(priv->map, DS1343_HOURS_REG, - bin2bcd(dt->tm_hour) & 0x3F); - if (res) - return res; - - res = regmap_write(priv->map, DS1343_DAY_REG, - bin2bcd(dt->tm_wday + 1)); - if (res) - return res; - - res = regmap_write(priv->map, DS1343_DATE_REG, - bin2bcd(dt->tm_mday)); - if (res) - return res; - - res = regmap_write(priv->map, DS1343_MONTH_REG, - bin2bcd(dt->tm_mon + 1)); - if (res) - return res; - - dt->tm_year %= 100; - - res = regmap_write(priv->map, DS1343_YEAR_REG, - bin2bcd(dt->tm_year)); - if (res) - return res; - - return 0; + u8 buf[7]; + + buf[0] = bin2bcd(dt->tm_sec); + buf[1] = bin2bcd(dt->tm_min); + buf[2] = bin2bcd(dt->tm_hour) & 0x3F; + buf[3] = bin2bcd(dt->tm_wday + 1); + buf[4] = bin2bcd(dt->tm_mday); + buf[5] = bin2bcd(dt->tm_mon + 1); + buf[6] = bin2bcd(dt->tm_year - 100); + + return regmap_bulk_write(priv->map, DS1343_SECONDS_REG, + buf, sizeof(buf)); } -static int ds1343_update_alarm(struct device *dev) +static int ds1343_read_alarm(struct device *dev, struct rtc_wkalrm *alarm) { struct ds1343_priv *priv = dev_get_drvdata(dev); - unsigned int control, stat; unsigned char buf[4]; - int res = 0; + unsigned int val; + int res; - res = regmap_read(priv->map, DS1343_CONTROL_REG, &control); - if (res) - return res; + if (priv->irq <= 0) + return -EINVAL; - res = regmap_read(priv->map, DS1343_STATUS_REG, &stat); + res = regmap_read(priv->map, DS1343_STATUS_REG, &val); if (res) return res; - control &= ~(DS1343_A0IE); - stat &= ~(DS1343_IRQF0); - - res = regmap_write(priv->map, DS1343_CONTROL_REG, control); - if (res) - return res; + alarm->pending = !!(val & DS1343_IRQF0); - res = regmap_write(priv->map, DS1343_STATUS_REG, stat); + res = regmap_read(priv->map, DS1343_CONTROL_REG, &val); if (res) return res; + alarm->enabled = !!(val & DS1343_A0IE); - buf[0] = priv->alarm_sec < 0 || (priv->irqen & RTC_UF) ? - 0x80 : bin2bcd(priv->alarm_sec) & 0x7F; - buf[1] = priv->alarm_min < 0 || (priv->irqen & RTC_UF) ? - 0x80 : bin2bcd(priv->alarm_min) & 0x7F; - buf[2] = priv->alarm_hour < 0 || (priv->irqen & RTC_UF) ? - 0x80 : bin2bcd(priv->alarm_hour) & 0x3F; - buf[3] = priv->alarm_mday < 0 || (priv->irqen & RTC_UF) ? - 0x80 : bin2bcd(priv->alarm_mday) & 0x7F; - - res = regmap_bulk_write(priv->map, DS1343_ALM0_SEC_REG, buf, 4); + res = regmap_bulk_read(priv->map, DS1343_ALM0_SEC_REG, buf, 4); if (res) return res; - if (priv->irqen) { - control |= DS1343_A0IE; - res = regmap_write(priv->map, DS1343_CONTROL_REG, control); - } + alarm->time.tm_sec = bcd2bin(buf[0]) & 0x7f; + alarm->time.tm_min = bcd2bin(buf[1]) & 0x7f; + alarm->time.tm_hour = bcd2bin(buf[2]) & 0x3f; + alarm->time.tm_mday = bcd2bin(buf[3]) & 0x3f; - return res; + return 0; } -static int ds1343_read_alarm(struct device *dev, struct rtc_wkalrm *alarm) +static int ds1343_set_alarm(struct device *dev, struct rtc_wkalrm *alarm) { struct ds1343_priv *priv = dev_get_drvdata(dev); + unsigned char buf[4]; int res = 0; - unsigned int stat; if (priv->irq <= 0) return -EINVAL; - mutex_lock(&priv->mutex); - - res = regmap_read(priv->map, DS1343_STATUS_REG, &stat); + res = regmap_update_bits(priv->map, DS1343_CONTROL_REG, DS1343_A0IE, 0); if (res) - goto out; - - alarm->enabled = !!(priv->irqen & RTC_AF); - alarm->pending = !!(stat & DS1343_IRQF0); - - alarm->time.tm_sec = priv->alarm_sec < 0 ? 0 : priv->alarm_sec; - alarm->time.tm_min = priv->alarm_min < 0 ? 0 : priv->alarm_min; - alarm->time.tm_hour = priv->alarm_hour < 0 ? 0 : priv->alarm_hour; - alarm->time.tm_mday = priv->alarm_mday < 0 ? 0 : priv->alarm_mday; - -out: - mutex_unlock(&priv->mutex); - return res; -} - -static int ds1343_set_alarm(struct device *dev, struct rtc_wkalrm *alarm) -{ - struct ds1343_priv *priv = dev_get_drvdata(dev); - int res = 0; - - if (priv->irq <= 0) - return -EINVAL; + return res; - mutex_lock(&priv->mutex); + buf[0] = bin2bcd(alarm->time.tm_sec); + buf[1] = bin2bcd(alarm->time.tm_min); + buf[2] = bin2bcd(alarm->time.tm_hour); + buf[3] = bin2bcd(alarm->time.tm_mday); - priv->alarm_sec = alarm->time.tm_sec; - priv->alarm_min = alarm->time.tm_min; - priv->alarm_hour = alarm->time.tm_hour; - priv->alarm_mday = alarm->time.tm_mday; + res = regmap_bulk_write(priv->map, DS1343_ALM0_SEC_REG, buf, 4); + if (res) + return res; if (alarm->enabled) - priv->irqen |= RTC_AF; - - res = ds1343_update_alarm(dev); - - mutex_unlock(&priv->mutex); + res = regmap_update_bits(priv->map, DS1343_CONTROL_REG, + DS1343_A0IE, DS1343_A0IE); return res; } @@ -401,32 +299,21 @@ static int ds1343_set_alarm(struct device *dev, struct rtc_wkalrm *alarm) static int ds1343_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct ds1343_priv *priv = dev_get_drvdata(dev); - int res = 0; if (priv->irq <= 0) return -EINVAL; - mutex_lock(&priv->mutex); - - if (enabled) - priv->irqen |= RTC_AF; - else - priv->irqen &= ~RTC_AF; - - res = ds1343_update_alarm(dev); - - mutex_unlock(&priv->mutex); - - return res; + return regmap_update_bits(priv->map, DS1343_CONTROL_REG, + DS1343_A0IE, enabled ? DS1343_A0IE : 0); } static irqreturn_t ds1343_thread(int irq, void *dev_id) { struct ds1343_priv *priv = dev_id; - unsigned int stat, control; + unsigned int stat; int res = 0; - mutex_lock(&priv->mutex); + rtc_lock(priv->rtc); res = regmap_read(priv->map, DS1343_STATUS_REG, &stat); if (res) @@ -436,23 +323,18 @@ static irqreturn_t ds1343_thread(int irq, void *dev_id) stat &= ~DS1343_IRQF0; regmap_write(priv->map, DS1343_STATUS_REG, stat); - res = regmap_read(priv->map, DS1343_CONTROL_REG, &control); - if (res) - goto out; - - control &= ~DS1343_A0IE; - regmap_write(priv->map, DS1343_CONTROL_REG, control); - rtc_update_irq(priv->rtc, 1, RTC_AF | RTC_IRQF); + + regmap_update_bits(priv->map, DS1343_CONTROL_REG, + DS1343_A0IE, 0); } out: - mutex_unlock(&priv->mutex); + rtc_unlock(priv->rtc); return IRQ_HANDLED; } static const struct rtc_class_ops ds1343_rtc_ops = { - .ioctl = ds1343_ioctl, .read_time = ds1343_read_time, .set_time = ds1343_set_time, .read_alarm = ds1343_read_alarm, @@ -481,7 +363,6 @@ static int ds1343_probe(struct spi_device *spi) return -ENOMEM; priv->spi = spi; - mutex_init(&priv->mutex); /* RTC DS1347 works in spi mode 3 and * its chip select is active high @@ -520,6 +401,13 @@ static int ds1343_probe(struct spi_device *spi) priv->rtc->nvram_old_abi = true; priv->rtc->ops = &ds1343_rtc_ops; + priv->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; + priv->rtc->range_max = RTC_TIMESTAMP_END_2099; + + res = rtc_add_group(priv->rtc, &ds1343_attr_group); + if (res) + dev_err(&spi->dev, + "unable to create sysfs entries for rtc ds1343\n"); res = rtc_register_device(priv->rtc); if (res) @@ -544,31 +432,12 @@ static int ds1343_probe(struct spi_device *spi) } } - res = ds1343_sysfs_register(&spi->dev); - if (res) - dev_err(&spi->dev, - "unable to create sysfs entries for rtc ds1343\n"); - return 0; } static int ds1343_remove(struct spi_device *spi) { - struct ds1343_priv *priv = spi_get_drvdata(spi); - - if (spi->irq) { - mutex_lock(&priv->mutex); - priv->irqen &= ~RTC_AF; - mutex_unlock(&priv->mutex); - - dev_pm_clear_wake_irq(&spi->dev); - device_init_wakeup(&spi->dev, false); - devm_free_irq(&spi->dev, spi->irq, priv); - } - - spi_set_drvdata(spi, NULL); - - ds1343_sysfs_unregister(&spi->dev); + dev_pm_clear_wake_irq(&spi->dev); return 0; } diff --git a/drivers/rtc/rtc-ds1347.c b/drivers/rtc/rtc-ds1347.c index d392a7bfdd1c..7025cf3fb9f8 100644 --- a/drivers/rtc/rtc-ds1347.c +++ b/drivers/rtc/rtc-ds1347.c @@ -26,9 +26,15 @@ #define DS1347_DAY_REG 0x0B #define DS1347_YEAR_REG 0x0D #define DS1347_CONTROL_REG 0x0F +#define DS1347_CENTURY_REG 0x13 #define DS1347_STATUS_REG 0x17 #define DS1347_CLOCK_BURST 0x3F +#define DS1347_WP_BIT BIT(7) + +#define DS1347_NEOSC_BIT BIT(7) +#define DS1347_OSF_BIT BIT(2) + static const struct regmap_range ds1347_ranges[] = { { .range_min = DS1347_SECONDS_REG, @@ -43,35 +49,54 @@ static const struct regmap_access_table ds1347_access_table = { static int ds1347_read_time(struct device *dev, struct rtc_time *dt) { - struct spi_device *spi = to_spi_device(dev); - struct regmap *map; - int err; + struct regmap *map = dev_get_drvdata(dev); + unsigned int status, century, secs; unsigned char buf[8]; + int err; - map = spi_get_drvdata(spi); - - err = regmap_bulk_read(map, DS1347_CLOCK_BURST, buf, 8); + err = regmap_read(map, DS1347_STATUS_REG, &status); if (err) return err; + if (status & DS1347_OSF_BIT) + return -EINVAL; + + do { + err = regmap_bulk_read(map, DS1347_CLOCK_BURST, buf, 8); + if (err) + return err; + + err = regmap_read(map, DS1347_CENTURY_REG, ¢ury); + if (err) + return err; + + err = regmap_read(map, DS1347_SECONDS_REG, &secs); + if (err) + return err; + } while (buf[0] != secs); + dt->tm_sec = bcd2bin(buf[0]); - dt->tm_min = bcd2bin(buf[1]); + dt->tm_min = bcd2bin(buf[1] & 0x7f); dt->tm_hour = bcd2bin(buf[2] & 0x3F); dt->tm_mday = bcd2bin(buf[3]); dt->tm_mon = bcd2bin(buf[4]) - 1; dt->tm_wday = bcd2bin(buf[5]) - 1; - dt->tm_year = bcd2bin(buf[6]) + 100; + dt->tm_year = (bcd2bin(century) * 100) + bcd2bin(buf[6]) - 1900; return 0; } static int ds1347_set_time(struct device *dev, struct rtc_time *dt) { - struct spi_device *spi = to_spi_device(dev); - struct regmap *map; + struct regmap *map = dev_get_drvdata(dev); + unsigned int century; unsigned char buf[8]; + int err; - map = spi_get_drvdata(spi); + err = regmap_update_bits(map, DS1347_STATUS_REG, + DS1347_NEOSC_BIT, DS1347_NEOSC_BIT); + if (err) + return err; buf[0] = bin2bcd(dt->tm_sec); buf[1] = bin2bcd(dt->tm_min); @@ -79,16 +104,20 @@ static int ds1347_set_time(struct device *dev, struct rtc_time *dt) buf[3] = bin2bcd(dt->tm_mday); buf[4] = bin2bcd(dt->tm_mon + 1); buf[5] = bin2bcd(dt->tm_wday + 1); + buf[6] = bin2bcd(dt->tm_year % 100); + buf[7] = bin2bcd(0x00); - /* year in linux is from 1900 i.e in range of 100 - in rtc it is from 00 to 99 */ - dt->tm_year = dt->tm_year % 100; + err = regmap_bulk_write(map, DS1347_CLOCK_BURST, buf, 8); + if (err) + return err; - buf[6] = bin2bcd(dt->tm_year); - buf[7] = bin2bcd(0x00); + century = (dt->tm_year / 100) + 19; + err = regmap_write(map, DS1347_CENTURY_REG, century); + if (err) + return err; - /* write the rtc settings */ - return regmap_bulk_write(map, DS1347_CLOCK_BURST, buf, 8); + return regmap_update_bits(map, DS1347_STATUS_REG, + DS1347_NEOSC_BIT | DS1347_OSF_BIT, 0); } static const struct rtc_class_ops ds1347_rtc_ops = { @@ -101,8 +130,7 @@ static int ds1347_probe(struct spi_device *spi) struct rtc_device *rtc; struct regmap_config config; struct regmap *map; - unsigned int data; - int res; + int err; memset(&config, 0, sizeof(config)); config.reg_bits = 8; @@ -125,36 +153,20 @@ static int ds1347_probe(struct spi_device *spi) spi_set_drvdata(spi, map); - /* RTC Settings */ - res = regmap_read(map, DS1347_SECONDS_REG, &data); - if (res) - return res; - /* Disable the write protect of rtc */ - regmap_read(map, DS1347_CONTROL_REG, &data); - data = data & ~(1<<7); - regmap_write(map, DS1347_CONTROL_REG, data); - - /* Enable the oscillator , disable the oscillator stop flag, - and glitch filter to reduce current consumption */ - regmap_read(map, DS1347_STATUS_REG, &data); - data = data & 0x1B; - regmap_write(map, DS1347_STATUS_REG, data); - - /* display the settings */ - regmap_read(map, DS1347_CONTROL_REG, &data); - dev_info(&spi->dev, "DS1347 RTC CTRL Reg = 0x%02x\n", data); - - regmap_read(map, DS1347_STATUS_REG, &data); - dev_info(&spi->dev, "DS1347 RTC Status Reg = 0x%02x\n", data); - - rtc = devm_rtc_device_register(&spi->dev, "ds1347", - &ds1347_rtc_ops, THIS_MODULE); + err = regmap_update_bits(map, DS1347_CONTROL_REG, DS1347_WP_BIT, 0); + if (err) + return err; + rtc = devm_rtc_allocate_device(&spi->dev); if (IS_ERR(rtc)) return PTR_ERR(rtc); - return 0; + rtc->ops = &ds1347_rtc_ops; + rtc->range_min = RTC_TIMESTAMP_BEGIN_0000; + rtc->range_max = RTC_TIMESTAMP_END_9999; + + return rtc_register_device(rtc); } static struct spi_driver ds1347_driver = { diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c index 6e96916c41ff..6e9ddcd03992 100644 --- a/drivers/rtc/rtc-ds1374.c +++ b/drivers/rtc/rtc-ds1374.c @@ -439,14 +439,13 @@ static void ds1374_wdt_ping(void) static void ds1374_wdt_disable(void) { - int ret = -ENOIOCTLCMD; int cr; cr = i2c_smbus_read_byte_data(save_client, DS1374_REG_CR); /* Disable watchdog timer */ cr &= ~DS1374_REG_CR_WACE; - ret = i2c_smbus_write_byte_data(save_client, DS1374_REG_CR, cr); + i2c_smbus_write_byte_data(save_client, DS1374_REG_CR, cr); } /* diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c index b6a477519280..a63872c4c76d 100644 --- a/drivers/rtc/rtc-ds1511.c +++ b/drivers/rtc/rtc-ds1511.c @@ -414,7 +414,6 @@ static int ds1511_nvram_write(void *priv, unsigned int pos, void *buf, static int ds1511_rtc_probe(struct platform_device *pdev) { - struct resource *res; struct rtc_plat_data *pdata; int ret = 0; struct nvmem_config ds1511_nvmem_cfg = { @@ -431,8 +430,7 @@ static int ds1511_rtc_probe(struct platform_device *pdev) if (!pdata) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - ds1511_base = devm_ioremap_resource(&pdev->dev, res); + ds1511_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(ds1511_base)) return PTR_ERR(ds1511_base); pdata->ioaddr = ds1511_base; diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c index 219d6b520a69..cdf5e05b9489 100644 --- a/drivers/rtc/rtc-ds1553.c +++ b/drivers/rtc/rtc-ds1553.c @@ -249,7 +249,6 @@ static int ds1553_nvram_write(void *priv, unsigned int pos, void *val, static int ds1553_rtc_probe(struct platform_device *pdev) { - struct resource *res; unsigned int cen, sec; struct rtc_plat_data *pdata; void __iomem *ioaddr; @@ -268,8 +267,7 @@ static int ds1553_rtc_probe(struct platform_device *pdev) if (!pdata) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - ioaddr = devm_ioremap_resource(&pdev->dev, res); + ioaddr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(ioaddr)) return PTR_ERR(ioaddr); pdata->ioaddr = ioaddr; diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c index 184e4a3e2bef..56c670af2e50 100644 --- a/drivers/rtc/rtc-ds1685.c +++ b/drivers/rtc/rtc-ds1685.c @@ -31,7 +31,10 @@ /* ----------------------------------------------------------------------- */ -/* Standard read/write functions if platform does not provide overrides */ +/* + * Standard read/write + * all registers are mapped in CPU address space + */ /** * ds1685_read - read a value from an rtc register. @@ -59,6 +62,35 @@ ds1685_write(struct ds1685_priv *rtc, int reg, u8 value) } /* ----------------------------------------------------------------------- */ +/* + * Indirect read/write functions + * access happens via address and data register mapped in CPU address space + */ + +/** + * ds1685_indirect_read - read a value from an rtc register. + * @rtc: pointer to the ds1685 rtc structure. + * @reg: the register address to read. + */ +static u8 +ds1685_indirect_read(struct ds1685_priv *rtc, int reg) +{ + writeb(reg, rtc->regs); + return readb(rtc->data); +} + +/** + * ds1685_indirect_write - write a value to an rtc register. + * @rtc: pointer to the ds1685 rtc structure. + * @reg: the register address to write. + * @value: value to write to the register. + */ +static void +ds1685_indirect_write(struct ds1685_priv *rtc, int reg, u8 value) +{ + writeb(reg, rtc->regs); + writeb(value, rtc->data); +} /* ----------------------------------------------------------------------- */ /* Inlined functions */ @@ -229,7 +261,7 @@ static int ds1685_rtc_read_time(struct device *dev, struct rtc_time *tm) { struct ds1685_priv *rtc = dev_get_drvdata(dev); - u8 ctrlb, century; + u8 century; u8 seconds, minutes, hours, wday, mday, month, years; /* Fetch the time info from the RTC registers. */ @@ -242,7 +274,6 @@ ds1685_rtc_read_time(struct device *dev, struct rtc_time *tm) month = rtc->read(rtc, RTC_MONTH); years = rtc->read(rtc, RTC_YEAR); century = rtc->read(rtc, RTC_CENTURY); - ctrlb = rtc->read(rtc, RTC_CTRL_B); ds1685_rtc_end_data_access(rtc); /* bcd2bin if needed, perform fixups, and store to rtc_time. */ @@ -723,7 +754,7 @@ static int ds1685_rtc_proc(struct device *dev, struct seq_file *seq) { struct ds1685_priv *rtc = dev_get_drvdata(dev); - u8 ctrla, ctrlb, ctrlc, ctrld, ctrl4a, ctrl4b, ssn[8]; + u8 ctrla, ctrlb, ctrld, ctrl4a, ctrl4b, ssn[8]; char *model; /* Read all the relevant data from the control registers. */ @@ -731,7 +762,6 @@ ds1685_rtc_proc(struct device *dev, struct seq_file *seq) ds1685_rtc_get_ssn(rtc, ssn); ctrla = rtc->read(rtc, RTC_CTRL_A); ctrlb = rtc->read(rtc, RTC_CTRL_B); - ctrlc = rtc->read(rtc, RTC_CTRL_C); ctrld = rtc->read(rtc, RTC_CTRL_D); ctrl4a = rtc->read(rtc, RTC_EXT_CTRL_4A); ctrl4b = rtc->read(rtc, RTC_EXT_CTRL_4B); @@ -1009,7 +1039,7 @@ ds1685_rtc_sysfs_serial_show(struct device *dev, } static DEVICE_ATTR(serial, S_IRUGO, ds1685_rtc_sysfs_serial_show, NULL); -/** +/* * struct ds1685_rtc_sysfs_misc_attrs - list for misc RTC features. */ static struct attribute* @@ -1020,7 +1050,7 @@ ds1685_rtc_sysfs_misc_attrs[] = { NULL, }; -/** +/* * struct ds1685_rtc_sysfs_misc_grp - attr group for misc RTC features. */ static const struct attribute_group @@ -1040,7 +1070,6 @@ static int ds1685_rtc_probe(struct platform_device *pdev) { struct rtc_device *rtc_dev; - struct resource *res; struct ds1685_priv *rtc; struct ds1685_rtc_platform_data *pdata; u8 ctrla, ctrlb, hours; @@ -1063,35 +1092,29 @@ ds1685_rtc_probe(struct platform_device *pdev) if (!rtc) return -ENOMEM; - /* - * Allocate/setup any IORESOURCE_MEM resources, if required. Not all - * platforms put the RTC in an easy-access place. Like the SGI Octane, - * which attaches the RTC to a "ByteBus", hooked to a SuperIO chip - * that sits behind the IOC3 PCI metadevice. - */ - if (pdata->alloc_io_resources) { - /* Get the platform resources. */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENXIO; - rtc->size = resource_size(res); - - /* Request a memory region. */ - /* XXX: mmio-only for now. */ - if (!devm_request_mem_region(&pdev->dev, res->start, rtc->size, - pdev->name)) - return -EBUSY; - - /* - * Set the base address for the rtc, and ioremap its - * registers. - */ - rtc->baseaddr = res->start; - rtc->regs = devm_ioremap(&pdev->dev, res->start, rtc->size); - if (!rtc->regs) - return -ENOMEM; + /* Setup resources and access functions */ + switch (pdata->access_type) { + case ds1685_reg_direct: + rtc->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(rtc->regs)) + return PTR_ERR(rtc->regs); + rtc->read = ds1685_read; + rtc->write = ds1685_write; + break; + case ds1685_reg_indirect: + rtc->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(rtc->regs)) + return PTR_ERR(rtc->regs); + rtc->data = devm_platform_ioremap_resource(pdev, 1); + if (IS_ERR(rtc->data)) + return PTR_ERR(rtc->data); + rtc->read = ds1685_indirect_read; + rtc->write = ds1685_indirect_write; + break; } - rtc->alloc_io_resources = pdata->alloc_io_resources; + + if (!rtc->read || !rtc->write) + return -ENXIO; /* Get the register step size. */ if (pdata->regstep > 0) @@ -1099,24 +1122,6 @@ ds1685_rtc_probe(struct platform_device *pdev) else rtc->regstep = 1; - /* Platform read function, else default if mmio setup */ - if (pdata->plat_read) - rtc->read = pdata->plat_read; - else - if (pdata->alloc_io_resources) - rtc->read = ds1685_read; - else - return -ENXIO; - - /* Platform write function, else default if mmio setup */ - if (pdata->plat_write) - rtc->write = pdata->plat_write; - else - if (pdata->alloc_io_resources) - rtc->write = ds1685_write; - else - return -ENXIO; - /* Platform pre-shutdown function, if defined. */ if (pdata->plat_prepare_poweroff) rtc->prepare_poweroff = pdata->plat_prepare_poweroff; @@ -1271,7 +1276,6 @@ ds1685_rtc_probe(struct platform_device *pdev) /* See if the platform doesn't support UIE. */ if (pdata->uie_unsupported) rtc_dev->uie_unsupported = 1; - rtc->uie_unsupported = pdata->uie_unsupported; rtc->dev = rtc_dev; @@ -1351,7 +1355,7 @@ ds1685_rtc_remove(struct platform_device *pdev) return 0; } -/** +/* * ds1685_rtc_driver - rtc driver properties. */ static struct platform_driver ds1685_rtc_driver = { diff --git a/drivers/rtc/rtc-em3027.c b/drivers/rtc/rtc-em3027.c index 77cca1392253..9f176bce48ba 100644 --- a/drivers/rtc/rtc-em3027.c +++ b/drivers/rtc/rtc-em3027.c @@ -71,7 +71,7 @@ static int em3027_get_time(struct device *dev, struct rtc_time *tm) tm->tm_hour = bcd2bin(buf[2]); tm->tm_mday = bcd2bin(buf[3]); tm->tm_wday = bcd2bin(buf[4]); - tm->tm_mon = bcd2bin(buf[5]); + tm->tm_mon = bcd2bin(buf[5]) - 1; tm->tm_year = bcd2bin(buf[6]) + 100; return 0; @@ -94,7 +94,7 @@ static int em3027_set_time(struct device *dev, struct rtc_time *tm) buf[3] = bin2bcd(tm->tm_hour); buf[4] = bin2bcd(tm->tm_mday); buf[5] = bin2bcd(tm->tm_wday); - buf[6] = bin2bcd(tm->tm_mon); + buf[6] = bin2bcd(tm->tm_mon + 1); buf[7] = bin2bcd(tm->tm_year % 100); /* write time/date registers */ diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c index 1766496385fe..8ec9ea1ca72e 100644 --- a/drivers/rtc/rtc-ep93xx.c +++ b/drivers/rtc/rtc-ep93xx.c @@ -122,15 +122,13 @@ static const struct attribute_group ep93xx_rtc_sysfs_files = { static int ep93xx_rtc_probe(struct platform_device *pdev) { struct ep93xx_rtc *ep93xx_rtc; - struct resource *res; int err; ep93xx_rtc = devm_kzalloc(&pdev->dev, sizeof(*ep93xx_rtc), GFP_KERNEL); if (!ep93xx_rtc) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - ep93xx_rtc->mmio_base = devm_ioremap_resource(&pdev->dev, res); + ep93xx_rtc->mmio_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(ep93xx_rtc->mmio_base)) return PTR_ERR(ep93xx_rtc->mmio_base); diff --git a/drivers/rtc/rtc-fsl-ftm-alarm.c b/drivers/rtc/rtc-fsl-ftm-alarm.c index 8df2075af9a2..9e6e994cce99 100644 --- a/drivers/rtc/rtc-fsl-ftm-alarm.c +++ b/drivers/rtc/rtc-fsl-ftm-alarm.c @@ -180,10 +180,7 @@ static int ftm_rtc_alarm_irq_enable(struct device *dev, */ static int ftm_rtc_read_time(struct device *dev, struct rtc_time *tm) { - struct timespec64 ts64; - - ktime_get_real_ts64(&ts64); - rtc_time_to_tm(ts64.tv_sec, tm); + rtc_time64_to_tm(ktime_get_real_seconds(), tm); return 0; } @@ -206,16 +203,14 @@ static int ftm_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm) */ static int ftm_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) { - struct rtc_time tm; - unsigned long now, alm_time, cycle; + time64_t alm_time; + unsigned long long cycle; struct ftm_rtc *rtc = dev_get_drvdata(dev); - ftm_rtc_read_time(dev, &tm); - rtc_tm_to_time(&tm, &now); - rtc_tm_to_time(&alm->time, &alm_time); + alm_time = rtc_tm_to_time64(&alm->time); ftm_clean_alarm(rtc); - cycle = (alm_time - now) * rtc->alarm_freq; + cycle = (alm_time - ktime_get_real_seconds()) * rtc->alarm_freq; if (cycle > MAX_COUNT_VAL) { pr_err("Out of alarm range {0~262} seconds.\n"); return -ERANGE; @@ -248,7 +243,6 @@ static const struct rtc_class_ops ftm_rtc_ops = { static int ftm_rtc_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; - struct resource *r; int irq; int ret; struct ftm_rtc *rtc; @@ -265,13 +259,7 @@ static int ftm_rtc_probe(struct platform_device *pdev) if (IS_ERR(rtc->rtc_dev)) return PTR_ERR(rtc->rtc_dev); - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - dev_err(&pdev->dev, "cannot get resource for rtc\n"); - return -ENODEV; - } - - rtc->base = devm_ioremap_resource(&pdev->dev, r); + rtc->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtc->base)) { dev_err(&pdev->dev, "cannot ioremap resource for rtc\n"); return PTR_ERR(rtc->base); diff --git a/drivers/rtc/rtc-goldfish.c b/drivers/rtc/rtc-goldfish.c index 1a3420ee6a4d..cb6b0ad7ec3f 100644 --- a/drivers/rtc/rtc-goldfish.c +++ b/drivers/rtc/rtc-goldfish.c @@ -165,7 +165,6 @@ static const struct rtc_class_ops goldfish_rtc_ops = { static int goldfish_rtc_probe(struct platform_device *pdev) { struct goldfish_rtc *rtcdrv; - struct resource *r; int err; rtcdrv = devm_kzalloc(&pdev->dev, sizeof(*rtcdrv), GFP_KERNEL); @@ -173,12 +172,7 @@ static int goldfish_rtc_probe(struct platform_device *pdev) return -ENOMEM; platform_set_drvdata(pdev, rtcdrv); - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) - return -ENODEV; - - rtcdrv->base = devm_ioremap_resource(&pdev->dev, r); + rtcdrv->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtcdrv->base)) return -ENODEV; diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c index 3089645e0ce8..18023e472cbc 100644 --- a/drivers/rtc/rtc-jz4740.c +++ b/drivers/rtc/rtc-jz4740.c @@ -307,7 +307,6 @@ static int jz4740_rtc_probe(struct platform_device *pdev) { int ret; struct jz4740_rtc *rtc; - struct resource *mem; const struct platform_device_id *id = platform_get_device_id(pdev); const struct of_device_id *of_id = of_match_device( jz4740_rtc_of_match, &pdev->dev); @@ -326,8 +325,7 @@ static int jz4740_rtc_probe(struct platform_device *pdev) if (rtc->irq < 0) return -ENOENT; - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - rtc->base = devm_ioremap_resource(&pdev->dev, mem); + rtc->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtc->base)) return PTR_ERR(rtc->base); diff --git a/drivers/rtc/rtc-lpc24xx.c b/drivers/rtc/rtc-lpc24xx.c index a8bb15606ec8..00ef16ba9480 100644 --- a/drivers/rtc/rtc-lpc24xx.c +++ b/drivers/rtc/rtc-lpc24xx.c @@ -194,15 +194,13 @@ static const struct rtc_class_ops lpc24xx_rtc_ops = { static int lpc24xx_rtc_probe(struct platform_device *pdev) { struct lpc24xx_rtc *rtc; - struct resource *res; int irq, ret; rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL); if (!rtc) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - rtc->rtc_base = devm_ioremap_resource(&pdev->dev, res); + rtc->rtc_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtc->rtc_base)) return PTR_ERR(rtc->rtc_base); diff --git a/drivers/rtc/rtc-lpc32xx.c b/drivers/rtc/rtc-lpc32xx.c index ac393230e592..15d8abda81fe 100644 --- a/drivers/rtc/rtc-lpc32xx.c +++ b/drivers/rtc/rtc-lpc32xx.c @@ -185,7 +185,6 @@ static const struct rtc_class_ops lpc32xx_rtc_ops = { static int lpc32xx_rtc_probe(struct platform_device *pdev) { - struct resource *res; struct lpc32xx_rtc *rtc; int err; u32 tmp; @@ -194,8 +193,7 @@ static int lpc32xx_rtc_probe(struct platform_device *pdev) if (unlikely(!rtc)) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - rtc->rtc_base = devm_ioremap_resource(&pdev->dev, res); + rtc->rtc_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtc->rtc_base)) return PTR_ERR(rtc->rtc_base); @@ -266,16 +264,6 @@ static int lpc32xx_rtc_probe(struct platform_device *pdev) return 0; } -static int lpc32xx_rtc_remove(struct platform_device *pdev) -{ - struct lpc32xx_rtc *rtc = platform_get_drvdata(pdev); - - if (rtc->irq >= 0) - device_init_wakeup(&pdev->dev, 0); - - return 0; -} - #ifdef CONFIG_PM static int lpc32xx_rtc_suspend(struct device *dev) { @@ -357,7 +345,6 @@ MODULE_DEVICE_TABLE(of, lpc32xx_rtc_match); static struct platform_driver lpc32xx_rtc_driver = { .probe = lpc32xx_rtc_probe, - .remove = lpc32xx_rtc_remove, .driver = { .name = "rtc-lpc32xx", .pm = LPC32XX_RTC_PM_OPS, diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c index f9fa4f068de3..9b70b371bd0c 100644 --- a/drivers/rtc/rtc-m41t80.c +++ b/drivers/rtc/rtc-m41t80.c @@ -235,9 +235,6 @@ static int m41t80_rtc_set_time(struct device *dev, struct rtc_time *tm) unsigned char buf[8]; int err, flags; - if (tm->tm_year < 100 || tm->tm_year > 199) - return -EINVAL; - buf[M41T80_REG_SSEC] = 0; buf[M41T80_REG_SEC] = bin2bcd(tm->tm_sec); buf[M41T80_REG_MIN] = bin2bcd(tm->tm_min); @@ -705,7 +702,6 @@ static ssize_t wdt_read(struct file *file, char __user *buf, /** * wdt_ioctl: - * @inode: inode of the device * @file: file handle to the device * @cmd: watchdog command * @arg: argument pointer @@ -926,6 +922,8 @@ static int m41t80_probe(struct i2c_client *client, } m41t80_data->rtc->ops = &m41t80_rtc_ops; + m41t80_data->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; + m41t80_data->rtc->range_max = RTC_TIMESTAMP_END_2099; if (client->irq <= 0) { /* We cannot support UIE mode if we do not have an IRQ line */ diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c index 59b54ed9b841..75a0e73071d8 100644 --- a/drivers/rtc/rtc-m48t86.c +++ b/drivers/rtc/rtc-m48t86.c @@ -218,7 +218,6 @@ static bool m48t86_verify_chip(struct platform_device *pdev) static int m48t86_rtc_probe(struct platform_device *pdev) { struct m48t86_rtc_info *info; - struct resource *res; unsigned char reg; int err; struct nvmem_config m48t86_nvmem_cfg = { @@ -235,17 +234,11 @@ static int m48t86_rtc_probe(struct platform_device *pdev) if (!info) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - info->index_reg = devm_ioremap_resource(&pdev->dev, res); + info->index_reg = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(info->index_reg)) return PTR_ERR(info->index_reg); - res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (!res) - return -ENODEV; - info->data_reg = devm_ioremap_resource(&pdev->dev, res); + info->data_reg = devm_platform_ioremap_resource(pdev, 1); if (IS_ERR(info->data_reg)) return PTR_ERR(info->data_reg); diff --git a/drivers/rtc/rtc-mc146818-lib.c b/drivers/rtc/rtc-mc146818-lib.c index 2ecd8752b088..df2829dd55ad 100644 --- a/drivers/rtc/rtc-mc146818-lib.c +++ b/drivers/rtc/rtc-mc146818-lib.c @@ -172,7 +172,20 @@ int mc146818_set_time(struct rtc_time *time) save_control = CMOS_READ(RTC_CONTROL); CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL); save_freq_select = CMOS_READ(RTC_FREQ_SELECT); - CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); + +#ifdef CONFIG_X86 + if ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD && + boot_cpu_data.x86 == 0x17) || + boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) { + CMOS_WRITE((save_freq_select & (~RTC_DIV_RESET2)), + RTC_FREQ_SELECT); + save_freq_select &= ~RTC_DIV_RESET2; + } else + CMOS_WRITE((save_freq_select | RTC_DIV_RESET2), + RTC_FREQ_SELECT); +#else + CMOS_WRITE((save_freq_select | RTC_DIV_RESET2), RTC_FREQ_SELECT); +#endif #ifdef CONFIG_MACH_DECSTATION CMOS_WRITE(real_yrs, RTC_DEC_YEAR); diff --git a/drivers/rtc/rtc-meson.c b/drivers/rtc/rtc-meson.c index e08b981dfc21..47ebcf834cc2 100644 --- a/drivers/rtc/rtc-meson.c +++ b/drivers/rtc/rtc-meson.c @@ -131,7 +131,7 @@ static u32 meson_rtc_get_data(struct meson_rtc *rtc) static int meson_rtc_get_bus(struct meson_rtc *rtc) { - int ret, retries = 3; + int ret, retries; u32 val; /* prepare bus for transfers, set all lines low */ @@ -292,7 +292,6 @@ static int meson_rtc_probe(struct platform_device *pdev) }; struct device *dev = &pdev->dev; struct meson_rtc *rtc; - struct resource *res; void __iomem *base; int ret; u32 tm; @@ -312,8 +311,7 @@ static int meson_rtc_probe(struct platform_device *pdev) rtc->rtc->ops = &meson_rtc_ops; rtc->rtc->range_max = U32_MAX; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - base = devm_ioremap_resource(dev, res); + base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(base)) return PTR_ERR(base); diff --git a/drivers/rtc/rtc-msm6242.c b/drivers/rtc/rtc-msm6242.c index 1c2d3c4a4963..80e364baac53 100644 --- a/drivers/rtc/rtc-msm6242.c +++ b/drivers/rtc/rtc-msm6242.c @@ -88,28 +88,16 @@ static inline void msm6242_write(struct msm6242_priv *priv, unsigned int val, __raw_writel(val, &priv->regs[reg]); } -static inline void msm6242_set(struct msm6242_priv *priv, unsigned int val, - unsigned int reg) -{ - msm6242_write(priv, msm6242_read(priv, reg) | val, reg); -} - -static inline void msm6242_clear(struct msm6242_priv *priv, unsigned int val, - unsigned int reg) -{ - msm6242_write(priv, msm6242_read(priv, reg) & ~val, reg); -} - static void msm6242_lock(struct msm6242_priv *priv) { int cnt = 5; - msm6242_set(priv, MSM6242_CD_HOLD, MSM6242_CD); + msm6242_write(priv, MSM6242_CD_HOLD|MSM6242_CD_IRQ_FLAG, MSM6242_CD); while ((msm6242_read(priv, MSM6242_CD) & MSM6242_CD_BUSY) && cnt) { - msm6242_clear(priv, MSM6242_CD_HOLD, MSM6242_CD); + msm6242_write(priv, MSM6242_CD_IRQ_FLAG, MSM6242_CD); udelay(70); - msm6242_set(priv, MSM6242_CD_HOLD, MSM6242_CD); + msm6242_write(priv, MSM6242_CD_HOLD|MSM6242_CD_IRQ_FLAG, MSM6242_CD); cnt--; } @@ -120,7 +108,7 @@ static void msm6242_lock(struct msm6242_priv *priv) static void msm6242_unlock(struct msm6242_priv *priv) { - msm6242_clear(priv, MSM6242_CD_HOLD, MSM6242_CD); + msm6242_write(priv, MSM6242_CD_IRQ_FLAG, MSM6242_CD); } static int msm6242_read_time(struct device *dev, struct rtc_time *tm) @@ -133,7 +121,8 @@ static int msm6242_read_time(struct device *dev, struct rtc_time *tm) msm6242_read(priv, MSM6242_SECOND1); tm->tm_min = msm6242_read(priv, MSM6242_MINUTE10) * 10 + msm6242_read(priv, MSM6242_MINUTE1); - tm->tm_hour = (msm6242_read(priv, MSM6242_HOUR10 & 3)) * 10 + + tm->tm_hour = (msm6242_read(priv, MSM6242_HOUR10) & + MSM6242_HOUR10_HR_MASK) * 10 + msm6242_read(priv, MSM6242_HOUR1); tm->tm_mday = msm6242_read(priv, MSM6242_DAY10) * 10 + msm6242_read(priv, MSM6242_DAY1); diff --git a/drivers/rtc/rtc-mt7622.c b/drivers/rtc/rtc-mt7622.c index 16bd26b5aa6f..f1e356394814 100644 --- a/drivers/rtc/rtc-mt7622.c +++ b/drivers/rtc/rtc-mt7622.c @@ -303,7 +303,6 @@ MODULE_DEVICE_TABLE(of, mtk_rtc_match); static int mtk_rtc_probe(struct platform_device *pdev) { struct mtk_rtc *hw; - struct resource *res; int ret; hw = devm_kzalloc(&pdev->dev, sizeof(*hw), GFP_KERNEL); @@ -312,8 +311,7 @@ static int mtk_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, hw); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - hw->base = devm_ioremap_resource(&pdev->dev, res); + hw->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(hw->base)) return PTR_ERR(hw->base); diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c index ab9db57a6834..d5f190e578e4 100644 --- a/drivers/rtc/rtc-mv.c +++ b/drivers/rtc/rtc-mv.c @@ -212,7 +212,6 @@ static const struct rtc_class_ops mv_rtc_alarm_ops = { static int __init mv_rtc_probe(struct platform_device *pdev) { - struct resource *res; struct rtc_plat_data *pdata; u32 rtc_time; int ret = 0; @@ -221,8 +220,7 @@ static int __init mv_rtc_probe(struct platform_device *pdev) if (!pdata) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - pdata->ioaddr = devm_ioremap_resource(&pdev->dev, res); + pdata->ioaddr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(pdata->ioaddr)) return PTR_ERR(pdata->ioaddr); diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index a2941c875a06..988a4dfcfaf8 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -727,7 +727,6 @@ static struct nvmem_config omap_rtc_nvmem_config = { static int omap_rtc_probe(struct platform_device *pdev) { struct omap_rtc *rtc; - struct resource *res; u8 reg, mask, new_ctrl; const struct platform_device_id *id_entry; const struct of_device_id *of_id; @@ -764,8 +763,7 @@ static int omap_rtc_probe(struct platform_device *pdev) if (!IS_ERR(rtc->clk)) clk_prepare_enable(rtc->clk); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - rtc->base = devm_ioremap_resource(&pdev->dev, res); + rtc->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtc->base)) { clk_disable_unprepare(rtc->clk); return PTR_ERR(rtc->base); diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 02b069caffd5..ba5baaca47be 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -417,6 +417,7 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, const char *name, bool has_nvmem) { struct pcf2127 *pcf2127; + u32 wdd_timeout; int ret = 0; dev_dbg(dev, "%s\n", __func__); @@ -459,7 +460,6 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, /* * Watchdog timer enabled and reset pin /RST activated when timed out. * Select 1Hz clock source for watchdog timer. - * Timer is not started until WD_VAL is loaded with a valid value. * Note: Countdown timer disabled and not available. */ ret = regmap_update_bits(pcf2127->regmap, PCF2127_REG_WD_CTL, @@ -475,6 +475,14 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, return ret; } + /* Test if watchdog timer is started by bootloader */ + ret = regmap_read(pcf2127->regmap, PCF2127_REG_WD_VAL, &wdd_timeout); + if (ret) + return ret; + + if (wdd_timeout) + set_bit(WDOG_HW_RUNNING, &pcf2127->wdd.status); + #ifdef CONFIG_WATCHDOG ret = devm_watchdog_register_device(dev, &pcf2127->wdd); if (ret) diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c index 2f435e533b10..b24c908f5f06 100644 --- a/drivers/rtc/rtc-pcf8523.c +++ b/drivers/rtc/rtc-pcf8523.c @@ -35,10 +35,6 @@ #define REG_OFFSET 0x0e #define REG_OFFSET_MODE BIT(7) -struct pcf8523 { - struct rtc_device *rtc; -}; - static int pcf8523_read(struct i2c_client *client, u8 reg, u8 *valuep) { struct i2c_msg msgs[2]; @@ -345,16 +341,12 @@ static const struct rtc_class_ops pcf8523_rtc_ops = { static int pcf8523_probe(struct i2c_client *client, const struct i2c_device_id *id) { - struct pcf8523 *pcf; + struct rtc_device *rtc; int err; if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) return -ENODEV; - pcf = devm_kzalloc(&client->dev, sizeof(*pcf), GFP_KERNEL); - if (!pcf) - return -ENOMEM; - err = pcf8523_load_capacitance(client); if (err < 0) dev_warn(&client->dev, "failed to set xtal load capacitance: %d", @@ -364,12 +356,10 @@ static int pcf8523_probe(struct i2c_client *client, if (err < 0) return err; - pcf->rtc = devm_rtc_device_register(&client->dev, DRIVER_NAME, + rtc = devm_rtc_device_register(&client->dev, DRIVER_NAME, &pcf8523_rtc_ops, THIS_MODULE); - if (IS_ERR(pcf->rtc)) - return PTR_ERR(pcf->rtc); - - i2c_set_clientdata(client, pcf); + if (IS_ERR(rtc)) + return PTR_ERR(rtc); return 0; } diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c index 24baa4767b11..3c322f3079b0 100644 --- a/drivers/rtc/rtc-pcf8563.c +++ b/drivers/rtc/rtc-pcf8563.c @@ -390,7 +390,7 @@ static int pcf8563_irq_enable(struct device *dev, unsigned int enabled) #define clkout_hw_to_pcf8563(_hw) container_of(_hw, struct pcf8563, clkout_hw) -static int clkout_rates[] = { +static const int clkout_rates[] = { 32768, 1024, 32, diff --git a/drivers/rtc/rtc-pic32.c b/drivers/rtc/rtc-pic32.c index 17653ed52ebb..2b6946744654 100644 --- a/drivers/rtc/rtc-pic32.c +++ b/drivers/rtc/rtc-pic32.c @@ -298,7 +298,6 @@ static int pic32_rtc_remove(struct platform_device *pdev) static int pic32_rtc_probe(struct platform_device *pdev) { struct pic32_rtc_dev *pdata; - struct resource *res; int ret; pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); @@ -311,8 +310,7 @@ static int pic32_rtc_probe(struct platform_device *pdev) if (pdata->alarm_irq < 0) return pdata->alarm_irq; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - pdata->reg_base = devm_ioremap_resource(&pdev->dev, res); + pdata->reg_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(pdata->reg_base)) return PTR_ERR(pdata->reg_base); diff --git a/drivers/rtc/rtc-pm8xxx.c b/drivers/rtc/rtc-pm8xxx.c index f5a30e0f16c2..07ea1be3abb9 100644 --- a/drivers/rtc/rtc-pm8xxx.c +++ b/drivers/rtc/rtc-pm8xxx.c @@ -49,7 +49,7 @@ struct pm8xxx_rtc_regs { * @regmap: regmap used to access RTC registers * @allow_set_time: indicates whether writing to the RTC is allowed * @rtc_alarm_irq: rtc alarm irq number. - * @ctrl_reg: rtc control register. + * @regs: rtc registers description. * @rtc_dev: device structure. * @ctrl_reg_lock: spinlock protecting access to ctrl_reg. */ diff --git a/drivers/rtc/rtc-r7301.c b/drivers/rtc/rtc-r7301.c index 2498278853af..aaf1b95e3990 100644 --- a/drivers/rtc/rtc-r7301.c +++ b/drivers/rtc/rtc-r7301.c @@ -354,21 +354,16 @@ static void rtc7301_init(struct rtc7301_priv *priv) static int __init rtc7301_rtc_probe(struct platform_device *dev) { - struct resource *res; void __iomem *regs; struct rtc7301_priv *priv; struct rtc_device *rtc; int ret; - res = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - priv = devm_kzalloc(&dev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; - regs = devm_ioremap_resource(&dev->dev, res); + regs = devm_platform_ioremap_resource(dev, 0); if (IS_ERR(regs)) return PTR_ERR(regs); diff --git a/drivers/rtc/rtc-rtd119x.c b/drivers/rtc/rtc-rtd119x.c index b233559d950b..bb98f2d574a5 100644 --- a/drivers/rtc/rtc-rtd119x.c +++ b/drivers/rtc/rtc-rtd119x.c @@ -167,7 +167,6 @@ static const struct of_device_id rtd119x_rtc_dt_ids[] = { static int rtd119x_rtc_probe(struct platform_device *pdev) { struct rtd119x_rtc *data; - struct resource *res; u32 val; int ret; @@ -178,8 +177,7 @@ static int rtd119x_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, data); data->base_year = 2014; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - data->base = devm_ioremap_resource(&pdev->dev, res); + data->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(data->base)) return PTR_ERR(data->base); diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c index 2b316661a578..6b7b3a69601a 100644 --- a/drivers/rtc/rtc-rv3028.c +++ b/drivers/rtc/rtc-rv3028.c @@ -8,6 +8,7 @@ * */ +#include <linux/clk-provider.h> #include <linux/bcd.h> #include <linux/bitops.h> #include <linux/i2c.h> @@ -52,6 +53,11 @@ #define RV3028_STATUS_CLKF BIT(6) #define RV3028_STATUS_EEBUSY BIT(7) +#define RV3028_CLKOUT_FD_MASK GENMASK(2, 0) +#define RV3028_CLKOUT_PORIE BIT(3) +#define RV3028_CLKOUT_CLKSY BIT(6) +#define RV3028_CLKOUT_CLKOE BIT(7) + #define RV3028_CTRL1_EERD BIT(3) #define RV3028_CTRL1_WADA BIT(5) @@ -84,6 +90,9 @@ struct rv3028_data { struct regmap *regmap; struct rtc_device *rtc; enum rv3028_type type; +#ifdef CONFIG_COMMON_CLK + struct clk_hw clkout_hw; +#endif }; static u16 rv3028_trickle_resistors[] = {1000, 3000, 6000, 11000}; @@ -581,6 +590,140 @@ restore_eerd: return ret; } +#ifdef CONFIG_COMMON_CLK +#define clkout_hw_to_rv3028(hw) container_of(hw, struct rv3028_data, clkout_hw) + +static int clkout_rates[] = { + 32768, + 8192, + 1024, + 64, + 32, + 1, +}; + +static unsigned long rv3028_clkout_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + int clkout, ret; + struct rv3028_data *rv3028 = clkout_hw_to_rv3028(hw); + + ret = regmap_read(rv3028->regmap, RV3028_CLKOUT, &clkout); + if (ret < 0) + return 0; + + clkout &= RV3028_CLKOUT_FD_MASK; + return clkout_rates[clkout]; +} + +static long rv3028_clkout_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(clkout_rates); i++) + if (clkout_rates[i] <= rate) + return clkout_rates[i]; + + return 0; +} + +static int rv3028_clkout_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + int i, ret; + struct rv3028_data *rv3028 = clkout_hw_to_rv3028(hw); + + ret = regmap_write(rv3028->regmap, RV3028_CLKOUT, 0x0); + if (ret < 0) + return ret; + + for (i = 0; i < ARRAY_SIZE(clkout_rates); i++) { + if (clkout_rates[i] == rate) { + ret = regmap_update_bits(rv3028->regmap, + RV3028_CLKOUT, + RV3028_CLKOUT_FD_MASK, i); + if (ret < 0) + return ret; + + return regmap_write(rv3028->regmap, RV3028_CLKOUT, + RV3028_CLKOUT_CLKSY | RV3028_CLKOUT_CLKOE); + } + } + + return -EINVAL; +} + +static int rv3028_clkout_prepare(struct clk_hw *hw) +{ + struct rv3028_data *rv3028 = clkout_hw_to_rv3028(hw); + + return regmap_write(rv3028->regmap, RV3028_CLKOUT, + RV3028_CLKOUT_CLKSY | RV3028_CLKOUT_CLKOE); +} + +static void rv3028_clkout_unprepare(struct clk_hw *hw) +{ + struct rv3028_data *rv3028 = clkout_hw_to_rv3028(hw); + + regmap_write(rv3028->regmap, RV3028_CLKOUT, 0x0); + regmap_update_bits(rv3028->regmap, RV3028_STATUS, + RV3028_STATUS_CLKF, 0); +} + +static int rv3028_clkout_is_prepared(struct clk_hw *hw) +{ + int clkout, ret; + struct rv3028_data *rv3028 = clkout_hw_to_rv3028(hw); + + ret = regmap_read(rv3028->regmap, RV3028_CLKOUT, &clkout); + if (ret < 0) + return ret; + + return !!(clkout & RV3028_CLKOUT_CLKOE); +} + +static const struct clk_ops rv3028_clkout_ops = { + .prepare = rv3028_clkout_prepare, + .unprepare = rv3028_clkout_unprepare, + .is_prepared = rv3028_clkout_is_prepared, + .recalc_rate = rv3028_clkout_recalc_rate, + .round_rate = rv3028_clkout_round_rate, + .set_rate = rv3028_clkout_set_rate, +}; + +static int rv3028_clkout_register_clk(struct rv3028_data *rv3028, + struct i2c_client *client) +{ + int ret; + struct clk *clk; + struct clk_init_data init; + struct device_node *node = client->dev.of_node; + + ret = regmap_update_bits(rv3028->regmap, RV3028_STATUS, + RV3028_STATUS_CLKF, 0); + if (ret < 0) + return ret; + + init.name = "rv3028-clkout"; + init.ops = &rv3028_clkout_ops; + init.flags = 0; + init.parent_names = NULL; + init.num_parents = 0; + rv3028->clkout_hw.init = &init; + + /* optional override of the clockname */ + of_property_read_string(node, "clock-output-names", &init.name); + + /* register the clock */ + clk = devm_clk_register(&client->dev, &rv3028->clkout_hw); + if (!IS_ERR(clk)) + of_clk_add_provider(node, of_clk_src_simple_get, clk); + + return 0; +} +#endif + static struct rtc_class_ops rv3028_rtc_ops = { .read_time = rv3028_get_time, .set_time = rv3028_set_time, @@ -708,6 +851,9 @@ static int rv3028_probe(struct i2c_client *client) rv3028->rtc->max_user_freq = 1; +#ifdef CONFIG_COMMON_CLK + rv3028_clkout_register_clk(rv3028, client); +#endif return 0; } diff --git a/drivers/rtc/rtc-rx6110.c b/drivers/rtc/rtc-rx6110.c index 71e20a6bd387..3a9eb7043f01 100644 --- a/drivers/rtc/rtc-rx6110.c +++ b/drivers/rtc/rtc-rx6110.c @@ -1,17 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Driver for the Epson RTC module RX-6110 SA * * Copyright(C) 2015 Pengutronix, Steffen Trumtrar <kernel@pengutronix.de> * Copyright(C) SEIKO EPSON CORPORATION 2013. All rights reserved. - * - * This driver software is distributed as is, without any warranty of any kind, - * either express or implied as further specified in the GNU Public License. - * This software may be used and distributed according to the terms of the GNU - * Public License, version 2 as published by the Free Software Foundation. - * See the file COPYING in the main directory of this archive for more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/bcd.h> @@ -370,11 +362,6 @@ static int rx6110_probe(struct spi_device *spi) return 0; } -static int rx6110_remove(struct spi_device *spi) -{ - return 0; -} - static const struct spi_device_id rx6110_id[] = { { "rx6110", 0 }, { } @@ -393,7 +380,6 @@ static struct spi_driver rx6110_driver = { .of_match_table = of_match_ptr(rx6110_spi_of_match), }, .probe = rx6110_probe, - .remove = rx6110_remove, .id_table = rx6110_id, }; diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c index da34cfd70f95..03672a246356 100644 --- a/drivers/rtc/rtc-s35390a.c +++ b/drivers/rtc/rtc-s35390a.c @@ -423,8 +423,6 @@ static const struct rtc_class_ops s35390a_rtc_ops = { .ioctl = s35390a_rtc_ioctl, }; -static struct i2c_driver s35390a_driver; - static int s35390a_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -456,6 +454,10 @@ static int s35390a_probe(struct i2c_client *client, } } + s35390a->rtc = devm_rtc_allocate_device(dev); + if (IS_ERR(s35390a->rtc)) + return PTR_ERR(s35390a->rtc); + err_read = s35390a_read_status(s35390a, &status1); if (err_read < 0) { dev_err(dev, "error resetting chip\n"); @@ -485,11 +487,9 @@ static int s35390a_probe(struct i2c_client *client, device_set_wakeup_capable(dev, 1); - s35390a->rtc = devm_rtc_device_register(dev, s35390a_driver.driver.name, - &s35390a_rtc_ops, THIS_MODULE); - - if (IS_ERR(s35390a->rtc)) - return PTR_ERR(s35390a->rtc); + s35390a->rtc->ops = &s35390a_rtc_ops; + s35390a->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; + s35390a->rtc->range_max = RTC_TIMESTAMP_END_2099; /* supports per-minute alarms only, therefore set uie_unsupported */ s35390a->rtc->uie_unsupported = 1; @@ -497,7 +497,7 @@ static int s35390a_probe(struct i2c_client *client, if (status1 & S35390A_FLAG_INT2) rtc_update_irq(s35390a->rtc, 1, RTC_AF); - return 0; + return rtc_register_device(s35390a->rtc); } static struct i2c_driver s35390a_driver = { diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index 7801249c254b..e1b50e682fc4 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -444,7 +444,6 @@ static int s3c_rtc_probe(struct platform_device *pdev) { struct s3c_rtc *info = NULL; struct rtc_time rtc_tm; - struct resource *res; int ret; info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); @@ -475,8 +474,7 @@ static int s3c_rtc_probe(struct platform_device *pdev) info->irq_tick, info->irq_alarm); /* get the memory region */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - info->base = devm_ioremap_resource(&pdev->dev, res); + info->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(info->base)) return PTR_ERR(info->base); diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c index 86fa723b3b76..d37893f6eaee 100644 --- a/drivers/rtc/rtc-sa1100.c +++ b/drivers/rtc/rtc-sa1100.c @@ -252,7 +252,6 @@ EXPORT_SYMBOL_GPL(sa1100_rtc_init); static int sa1100_rtc_probe(struct platform_device *pdev) { struct sa1100_rtc *info; - struct resource *iores; void __iomem *base; int irq_1hz, irq_alarm; int ret; @@ -281,8 +280,7 @@ static int sa1100_rtc_probe(struct platform_device *pdev) return ret; } - iores = platform_get_resource(pdev, IORESOURCE_MEM, 0); - base = devm_ioremap_resource(&pdev->dev, iores); + base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(base)) return PTR_ERR(base); diff --git a/drivers/rtc/rtc-sc27xx.c b/drivers/rtc/rtc-sc27xx.c index b95676899750..36810dd40cd3 100644 --- a/drivers/rtc/rtc-sc27xx.c +++ b/drivers/rtc/rtc-sc27xx.c @@ -661,12 +661,6 @@ static int sprd_rtc_probe(struct platform_device *pdev) return 0; } -static int sprd_rtc_remove(struct platform_device *pdev) -{ - device_init_wakeup(&pdev->dev, 0); - return 0; -} - static const struct of_device_id sprd_rtc_of_match[] = { { .compatible = "sprd,sc2731-rtc", }, { }, @@ -679,7 +673,6 @@ static struct platform_driver sprd_rtc_driver = { .of_match_table = sprd_rtc_of_match, }, .probe = sprd_rtc_probe, - .remove = sprd_rtc_remove, }; module_platform_driver(sprd_rtc_driver); diff --git a/drivers/rtc/rtc-sirfsoc.c b/drivers/rtc/rtc-sirfsoc.c index c759c55359a1..a2c9c55667cd 100644 --- a/drivers/rtc/rtc-sirfsoc.c +++ b/drivers/rtc/rtc-sirfsoc.c @@ -365,13 +365,6 @@ static int sirfsoc_rtc_probe(struct platform_device *pdev) return 0; } -static int sirfsoc_rtc_remove(struct platform_device *pdev) -{ - device_init_wakeup(&pdev->dev, 0); - - return 0; -} - #ifdef CONFIG_PM_SLEEP static int sirfsoc_rtc_suspend(struct device *dev) { @@ -450,7 +443,6 @@ static struct platform_driver sirfsoc_rtc_driver = { .of_match_table = sirfsoc_rtc_of_match, }, .probe = sirfsoc_rtc_probe, - .remove = sirfsoc_rtc_remove, }; module_platform_driver(sirfsoc_rtc_driver); diff --git a/drivers/rtc/rtc-spear.c b/drivers/rtc/rtc-spear.c index 9f23b24f466c..833daeb7b60e 100644 --- a/drivers/rtc/rtc-spear.c +++ b/drivers/rtc/rtc-spear.c @@ -347,7 +347,6 @@ static const struct rtc_class_ops spear_rtc_ops = { static int spear_rtc_probe(struct platform_device *pdev) { - struct resource *res; struct spear_rtc_config *config; int status = 0; int irq; @@ -369,8 +368,7 @@ static int spear_rtc_probe(struct platform_device *pdev) return status; } - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - config->ioaddr = devm_ioremap_resource(&pdev->dev, res); + config->ioaddr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(config->ioaddr)) return PTR_ERR(config->ioaddr); diff --git a/drivers/rtc/rtc-st-lpc.c b/drivers/rtc/rtc-st-lpc.c index 49474a31c66d..51041dc08af4 100644 --- a/drivers/rtc/rtc-st-lpc.c +++ b/drivers/rtc/rtc-st-lpc.c @@ -41,7 +41,6 @@ struct st_rtc { struct rtc_device *rtc_dev; struct rtc_wkalrm alarm; - struct resource *res; struct clk *clk; unsigned long clkrate; void __iomem *ioaddr; @@ -186,7 +185,6 @@ static int st_rtc_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct st_rtc *rtc; - struct resource *res; uint32_t mode; int ret = 0; @@ -210,8 +208,7 @@ static int st_rtc_probe(struct platform_device *pdev) spin_lock_init(&rtc->lock); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - rtc->ioaddr = devm_ioremap_resource(&pdev->dev, res); + rtc->ioaddr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtc->ioaddr)) return PTR_ERR(rtc->ioaddr); diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c index a833ebc4ecb9..01a45044f468 100644 --- a/drivers/rtc/rtc-stk17ta8.c +++ b/drivers/rtc/rtc-stk17ta8.c @@ -256,7 +256,6 @@ static int stk17ta8_nvram_write(void *priv, unsigned int pos, void *val, static int stk17ta8_rtc_probe(struct platform_device *pdev) { - struct resource *res; unsigned int cal; unsigned int flags; struct rtc_plat_data *pdata; @@ -275,8 +274,7 @@ static int stk17ta8_rtc_probe(struct platform_device *pdev) if (!pdata) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - ioaddr = devm_ioremap_resource(&pdev->dev, res); + ioaddr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(ioaddr)) return PTR_ERR(ioaddr); pdata->ioaddr = ioaddr; diff --git a/drivers/rtc/rtc-stm32.c b/drivers/rtc/rtc-stm32.c index 2999e33a7e37..781cabb2afca 100644 --- a/drivers/rtc/rtc-stm32.c +++ b/drivers/rtc/rtc-stm32.c @@ -693,15 +693,13 @@ static int stm32_rtc_probe(struct platform_device *pdev) { struct stm32_rtc *rtc; const struct stm32_rtc_registers *regs; - struct resource *res; int ret; rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL); if (!rtc) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - rtc->base = devm_ioremap_resource(&pdev->dev, res); + rtc->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rtc->base)) return PTR_ERR(rtc->base); diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c index 5e2bd9f1d01e..8dcd20b34dde 100644 --- a/drivers/rtc/rtc-sun6i.c +++ b/drivers/rtc/rtc-sun6i.c @@ -136,7 +136,6 @@ struct sun6i_rtc_clk_data { struct sun6i_rtc_dev { struct rtc_device *rtc; - struct device *dev; const struct sun6i_rtc_clk_data *data; void __iomem *base; int irq; @@ -669,7 +668,6 @@ static int sun6i_rtc_probe(struct platform_device *pdev) return -ENODEV; platform_set_drvdata(pdev, chip); - chip->dev = &pdev->dev; chip->irq = platform_get_irq(pdev, 0); if (chip->irq < 0) diff --git a/drivers/rtc/rtc-sunxi.c b/drivers/rtc/rtc-sunxi.c index 9b6f2483c1c6..f5d7f44550ce 100644 --- a/drivers/rtc/rtc-sunxi.c +++ b/drivers/rtc/rtc-sunxi.c @@ -422,7 +422,6 @@ MODULE_DEVICE_TABLE(of, sunxi_rtc_dt_ids); static int sunxi_rtc_probe(struct platform_device *pdev) { struct sunxi_rtc_dev *chip; - struct resource *res; int ret; chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL); @@ -436,8 +435,7 @@ static int sunxi_rtc_probe(struct platform_device *pdev) if (IS_ERR(chip->rtc)) return PTR_ERR(chip->rtc); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - chip->base = devm_ioremap_resource(&pdev->dev, res); + chip->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(chip->base)) return PTR_ERR(chip->base); diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c index 69d695bf9500..7fbb1741692f 100644 --- a/drivers/rtc/rtc-tegra.c +++ b/drivers/rtc/rtc-tegra.c @@ -103,7 +103,7 @@ static int tegra_rtc_read_time(struct device *dev, struct rtc_time *tm) { struct tegra_rtc_info *info = dev_get_drvdata(dev); unsigned long flags; - u32 sec, msec; + u32 sec; /* * RTC hardware copies seconds to shadow seconds when a read of @@ -111,7 +111,7 @@ static int tegra_rtc_read_time(struct device *dev, struct rtc_time *tm) */ spin_lock_irqsave(&info->lock, flags); - msec = readl(info->base + TEGRA_RTC_REG_MILLI_SECONDS); + readl(info->base + TEGRA_RTC_REG_MILLI_SECONDS); sec = readl(info->base + TEGRA_RTC_REG_SHADOW_SECONDS); spin_unlock_irqrestore(&info->lock, flags); @@ -277,15 +277,13 @@ MODULE_DEVICE_TABLE(of, tegra_rtc_dt_match); static int tegra_rtc_probe(struct platform_device *pdev) { struct tegra_rtc_info *info; - struct resource *res; int ret; info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - info->base = devm_ioremap_resource(&pdev->dev, res); + info->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(info->base)) return PTR_ERR(info->base); diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c index 2c0467a9e717..e3840386f430 100644 --- a/drivers/rtc/rtc-tps65910.c +++ b/drivers/rtc/rtc-tps65910.c @@ -361,6 +361,13 @@ static const struct rtc_class_ops tps65910_rtc_ops = { .set_offset = tps65910_set_offset, }; +static const struct rtc_class_ops tps65910_rtc_ops_noirq = { + .read_time = tps65910_rtc_read_time, + .set_time = tps65910_rtc_set_time, + .read_offset = tps65910_read_offset, + .set_offset = tps65910_set_offset, +}; + static int tps65910_rtc_probe(struct platform_device *pdev) { struct tps65910 *tps65910 = NULL; @@ -414,14 +421,16 @@ static int tps65910_rtc_probe(struct platform_device *pdev) ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, tps65910_rtc_interrupt, IRQF_TRIGGER_LOW, dev_name(&pdev->dev), &pdev->dev); - if (ret < 0) { - dev_err(&pdev->dev, "IRQ is not free.\n"); - return ret; - } + if (ret < 0) + irq = -1; + tps_rtc->irq = irq; - device_set_wakeup_capable(&pdev->dev, 1); + if (irq != -1) { + device_set_wakeup_capable(&pdev->dev, 1); + tps_rtc->rtc->ops = &tps65910_rtc_ops; + } else + tps_rtc->rtc->ops = &tps65910_rtc_ops_noirq; - tps_rtc->rtc->ops = &tps65910_rtc_ops; tps_rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; tps_rtc->rtc->range_max = RTC_TIMESTAMP_END_2099; diff --git a/drivers/rtc/rtc-tx4939.c b/drivers/rtc/rtc-tx4939.c index 5a29915a06ec..715b82981279 100644 --- a/drivers/rtc/rtc-tx4939.c +++ b/drivers/rtc/rtc-tx4939.c @@ -236,7 +236,6 @@ static int __init tx4939_rtc_probe(struct platform_device *pdev) { struct rtc_device *rtc; struct tx4939rtc_plat_data *pdata; - struct resource *res; int irq, ret; struct nvmem_config nvmem_cfg = { .name = "tx4939_nvram", @@ -253,8 +252,7 @@ static int __init tx4939_rtc_probe(struct platform_device *pdev) return -ENOMEM; platform_set_drvdata(pdev, pdata); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - pdata->rtcreg = devm_ioremap_resource(&pdev->dev, res); + pdata->rtcreg = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(pdata->rtcreg)) return PTR_ERR(pdata->rtcreg); diff --git a/drivers/rtc/rtc-v3020.c b/drivers/rtc/rtc-v3020.c index 63ffba21397b..d2da92187d56 100644 --- a/drivers/rtc/rtc-v3020.c +++ b/drivers/rtc/rtc-v3020.c @@ -284,7 +284,6 @@ static int rtc_probe(struct platform_device *pdev) struct v3020 *chip; int retval = -EBUSY; int i; - int temp; chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL); if (!chip) @@ -302,7 +301,7 @@ static int rtc_probe(struct platform_device *pdev) /* Make sure the v3020 expects a communication cycle * by reading 8 times */ for (i = 0; i < 8; i++) - temp = chip->ops->read_bit(chip); + chip->ops->read_bit(chip); /* Test chip by doing a write/read sequence * to the chip ram */ diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c index d5d14cf86e0d..e2588625025f 100644 --- a/drivers/rtc/rtc-vt8500.c +++ b/drivers/rtc/rtc-vt8500.c @@ -122,12 +122,6 @@ static int vt8500_rtc_set_time(struct device *dev, struct rtc_time *tm) { struct vt8500_rtc *vt8500_rtc = dev_get_drvdata(dev); - if (tm->tm_year < 100) { - dev_warn(dev, "Only years 2000-2199 are supported by the " - "hardware!\n"); - return -EINVAL; - } - writel((bin2bcd(tm->tm_year % 100) << DATE_YEAR_S) | (bin2bcd(tm->tm_mon + 1) << DATE_MONTH_S) | (bin2bcd(tm->tm_mday)) @@ -200,7 +194,6 @@ static const struct rtc_class_ops vt8500_rtc_ops = { static int vt8500_rtc_probe(struct platform_device *pdev) { struct vt8500_rtc *vt8500_rtc; - struct resource *res; int ret; vt8500_rtc = devm_kzalloc(&pdev->dev, @@ -215,8 +208,7 @@ static int vt8500_rtc_probe(struct platform_device *pdev) if (vt8500_rtc->irq_alarm < 0) return vt8500_rtc->irq_alarm; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - vt8500_rtc->regbase = devm_ioremap_resource(&pdev->dev, res); + vt8500_rtc->regbase = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(vt8500_rtc->regbase)) return PTR_ERR(vt8500_rtc->regbase); @@ -224,27 +216,23 @@ static int vt8500_rtc_probe(struct platform_device *pdev) writel(VT8500_RTC_CR_ENABLE, vt8500_rtc->regbase + VT8500_RTC_CR); - vt8500_rtc->rtc = devm_rtc_device_register(&pdev->dev, "vt8500-rtc", - &vt8500_rtc_ops, THIS_MODULE); - if (IS_ERR(vt8500_rtc->rtc)) { - ret = PTR_ERR(vt8500_rtc->rtc); - dev_err(&pdev->dev, - "Failed to register RTC device -> %d\n", ret); - goto err_return; - } + vt8500_rtc->rtc = devm_rtc_allocate_device(&pdev->dev); + if (IS_ERR(vt8500_rtc->rtc)) + return PTR_ERR(vt8500_rtc->rtc); + + vt8500_rtc->rtc->ops = &vt8500_rtc_ops; + vt8500_rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; + vt8500_rtc->rtc->range_max = RTC_TIMESTAMP_END_2199; ret = devm_request_irq(&pdev->dev, vt8500_rtc->irq_alarm, vt8500_rtc_irq, 0, "rtc alarm", vt8500_rtc); if (ret < 0) { dev_err(&pdev->dev, "can't get irq %i, err %d\n", vt8500_rtc->irq_alarm, ret); - goto err_return; + return ret; } - return 0; - -err_return: - return ret; + return rtc_register_device(vt8500_rtc->rtc); } static int vt8500_rtc_remove(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-wilco-ec.c b/drivers/rtc/rtc-wilco-ec.c index 8ad4c4e6d557..ff46066a68a4 100644 --- a/drivers/rtc/rtc-wilco-ec.c +++ b/drivers/rtc/rtc-wilco-ec.c @@ -110,10 +110,12 @@ static int wilco_ec_rtc_read(struct device *dev, struct rtc_time *tm) tm->tm_mday = rtc.day; tm->tm_mon = rtc.month - 1; tm->tm_year = rtc.year + (rtc.century * 100) - 1900; - tm->tm_yday = rtc_year_days(tm->tm_mday, tm->tm_mon, tm->tm_year); + /* Ignore other tm fields, man rtc says userspace shouldn't use them. */ - /* Don't compute day of week, we don't need it. */ - tm->tm_wday = -1; + if (rtc_valid_tm(tm)) { + dev_err(dev, "Time from RTC is invalid: %ptRr\n", tm); + return -EIO; + } return 0; } diff --git a/drivers/rtc/rtc-xgene.c b/drivers/rtc/rtc-xgene.c index 9683fbf7c78d..96db441f92b3 100644 --- a/drivers/rtc/rtc-xgene.c +++ b/drivers/rtc/rtc-xgene.c @@ -34,7 +34,6 @@ struct xgene_rtc_dev { struct rtc_device *rtc; - struct device *dev; void __iomem *csr_base; struct clk *clk; unsigned int irq_wake; @@ -137,7 +136,6 @@ static irqreturn_t xgene_rtc_interrupt(int irq, void *id) static int xgene_rtc_probe(struct platform_device *pdev) { struct xgene_rtc_dev *pdata; - struct resource *res; int ret; int irq; @@ -145,10 +143,8 @@ static int xgene_rtc_probe(struct platform_device *pdev) if (!pdata) return -ENOMEM; platform_set_drvdata(pdev, pdata); - pdata->dev = &pdev->dev; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - pdata->csr_base = devm_ioremap_resource(&pdev->dev, res); + pdata->csr_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(pdata->csr_base)) return PTR_ERR(pdata->csr_base); diff --git a/drivers/rtc/rtc-zynqmp.c b/drivers/rtc/rtc-zynqmp.c index 2c762757fb54..539690568298 100644 --- a/drivers/rtc/rtc-zynqmp.c +++ b/drivers/rtc/rtc-zynqmp.c @@ -44,7 +44,7 @@ struct xlnx_rtc_dev { void __iomem *reg_base; int alarm_irq; int sec_irq; - int calibval; + unsigned int calibval; }; static int xlnx_rtc_set_time(struct device *dev, struct rtc_time *tm) @@ -195,7 +195,6 @@ static irqreturn_t xlnx_rtc_interrupt(int irq, void *id) static int xlnx_rtc_probe(struct platform_device *pdev) { struct xlnx_rtc_dev *xrtcdev; - struct resource *res; int ret; xrtcdev = devm_kzalloc(&pdev->dev, sizeof(*xrtcdev), GFP_KERNEL); @@ -211,9 +210,7 @@ static int xlnx_rtc_probe(struct platform_device *pdev) xrtcdev->rtc->ops = &xlnx_rtc_ops; xrtcdev->rtc->range_max = U32_MAX; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - - xrtcdev->reg_base = devm_ioremap_resource(&pdev->dev, res); + xrtcdev->reg_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(xrtcdev->reg_base)) return PTR_ERR(xrtcdev->reg_base); diff --git a/drivers/rtc/sysfs.c b/drivers/rtc/sysfs.c index be3531e7f868..b7ca7d79fb28 100644 --- a/drivers/rtc/sysfs.c +++ b/drivers/rtc/sysfs.c @@ -103,8 +103,11 @@ static DEVICE_ATTR_RW(max_user_freq); /** * rtc_sysfs_show_hctosys - indicate if the given RTC set the system time + * @dev: The device that the attribute belongs to. + * @attr: The attribute being read. + * @buf: The result buffer. * - * Returns 1 if the system clock was set by this RTC at the last + * buf is "1" if the system clock was set by this RTC at the last * boot or resume event. */ static ssize_t |