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-rw-r--r--drivers/pinctrl/samsung/pinctrl-exynos.c63
-rw-r--r--drivers/pinctrl/samsung/pinctrl-samsung.c45
2 files changed, 83 insertions, 25 deletions
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index f9b49967f512..c0dfd31c0fa2 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -777,6 +777,7 @@ exynos_retention_init(struct samsung_pinctrl_drv_data *drvdata,
{
struct samsung_retention_ctrl *ctrl;
struct regmap *pmu_regs;
+ int i;
ctrl = devm_kzalloc(drvdata->dev, sizeof(*ctrl), GFP_KERNEL);
if (!ctrl)
@@ -794,6 +795,10 @@ exynos_retention_init(struct samsung_pinctrl_drv_data *drvdata,
ctrl->enable = exynos_retention_enable;
ctrl->disable = exynos_retention_disable;
+ /* Ensure that retention is disabled on driver init */
+ for (i = 0; i < ctrl->nr_regs; i++)
+ regmap_write(pmu_regs, ctrl->regs[i], ctrl->value);
+
return ctrl;
}
@@ -1546,6 +1551,54 @@ static const struct samsung_pin_bank_data exynos5433_pin_banks9[] __initconst =
EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj1", 0x00),
};
+/* PMU pin retention groups registers for Exynos5433 (without audio & fsys) */
+static const u32 exynos5433_retention_regs[] = {
+ EXYNOS5433_PAD_RETENTION_TOP_OPTION,
+ EXYNOS5433_PAD_RETENTION_UART_OPTION,
+ EXYNOS5433_PAD_RETENTION_EBIA_OPTION,
+ EXYNOS5433_PAD_RETENTION_EBIB_OPTION,
+ EXYNOS5433_PAD_RETENTION_SPI_OPTION,
+ EXYNOS5433_PAD_RETENTION_MIF_OPTION,
+ EXYNOS5433_PAD_RETENTION_USBXTI_OPTION,
+ EXYNOS5433_PAD_RETENTION_BOOTLDO_OPTION,
+ EXYNOS5433_PAD_RETENTION_UFS_OPTION,
+ EXYNOS5433_PAD_RETENTION_FSYSGENIO_OPTION,
+};
+
+static const struct samsung_retention_data exynos5433_retention_data __initconst = {
+ .regs = exynos5433_retention_regs,
+ .nr_regs = ARRAY_SIZE(exynos5433_retention_regs),
+ .value = EXYNOS_WAKEUP_FROM_LOWPWR,
+ .refcnt = &exynos_shared_retention_refcnt,
+ .init = exynos_retention_init,
+};
+
+/* PMU retention control for audio pins can be tied to audio pin bank */
+static const u32 exynos5433_audio_retention_regs[] = {
+ EXYNOS5433_PAD_RETENTION_AUD_OPTION,
+};
+
+static const struct samsung_retention_data exynos5433_audio_retention_data __initconst = {
+ .regs = exynos5433_audio_retention_regs,
+ .nr_regs = ARRAY_SIZE(exynos5433_audio_retention_regs),
+ .value = EXYNOS_WAKEUP_FROM_LOWPWR,
+ .init = exynos_retention_init,
+};
+
+/* PMU retention control for mmc pins can be tied to fsys pin bank */
+static const u32 exynos5433_fsys_retention_regs[] = {
+ EXYNOS5433_PAD_RETENTION_MMC0_OPTION,
+ EXYNOS5433_PAD_RETENTION_MMC1_OPTION,
+ EXYNOS5433_PAD_RETENTION_MMC2_OPTION,
+};
+
+static const struct samsung_retention_data exynos5433_fsys_retention_data __initconst = {
+ .regs = exynos5433_fsys_retention_regs,
+ .nr_regs = ARRAY_SIZE(exynos5433_fsys_retention_regs),
+ .value = EXYNOS_WAKEUP_FROM_LOWPWR,
+ .init = exynos_retention_init,
+};
+
/*
* Samsung pinctrl driver data for Exynos5433 SoC. Exynos5433 SoC includes
* ten gpio/pin-mux/pinconfig controllers.
@@ -1559,6 +1612,7 @@ const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
.nr_ext_resources = 1,
+ .retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 1 data */
.pin_banks = exynos5433_pin_banks1,
@@ -1566,6 +1620,7 @@ const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_audio_retention_data,
}, {
/* pin-controller instance 2 data */
.pin_banks = exynos5433_pin_banks2,
@@ -1573,6 +1628,7 @@ const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 3 data */
.pin_banks = exynos5433_pin_banks3,
@@ -1580,6 +1636,7 @@ const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 4 data */
.pin_banks = exynos5433_pin_banks4,
@@ -1587,6 +1644,7 @@ const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 5 data */
.pin_banks = exynos5433_pin_banks5,
@@ -1594,6 +1652,7 @@ const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_fsys_retention_data,
}, {
/* pin-controller instance 6 data */
.pin_banks = exynos5433_pin_banks6,
@@ -1601,6 +1660,7 @@ const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 7 data */
.pin_banks = exynos5433_pin_banks7,
@@ -1608,6 +1668,7 @@ const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 8 data */
.pin_banks = exynos5433_pin_banks8,
@@ -1615,6 +1676,7 @@ const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 9 data */
.pin_banks = exynos5433_pin_banks9,
@@ -1622,6 +1684,7 @@ const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
},
};
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c
index 0d2989d98bc3..b618dae84cec 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.c
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.c
@@ -882,7 +882,7 @@ static int samsung_pinctrl_register(struct platform_device *pdev,
pin_bank->grange.id = bank;
pin_bank->grange.pin_base = drvdata->pin_base
+ pin_bank->pin_base;
- pin_bank->grange.base = pin_bank->gpio_chip.base;
+ pin_bank->grange.base = pin_bank->grange.pin_base;
pin_bank->grange.npins = pin_bank->gpio_chip.ngpio;
pin_bank->grange.gc = &pin_bank->gpio_chip;
pinctrl_add_gpio_range(drvdata->pctl_dev, &pin_bank->grange);
@@ -891,6 +891,19 @@ static int samsung_pinctrl_register(struct platform_device *pdev,
return 0;
}
+/* unregister the pinctrl interface with the pinctrl subsystem */
+static int samsung_pinctrl_unregister(struct platform_device *pdev,
+ struct samsung_pinctrl_drv_data *drvdata)
+{
+ struct samsung_pin_bank *bank = drvdata->pin_banks;
+ int i;
+
+ for (i = 0; i < drvdata->nr_banks; ++i, ++bank)
+ pinctrl_remove_gpio_range(drvdata->pctl_dev, &bank->grange);
+
+ return 0;
+}
+
static const struct gpio_chip samsung_gpiolib_chip = {
.request = gpiochip_generic_request,
.free = gpiochip_generic_free,
@@ -915,39 +928,21 @@ static int samsung_gpiolib_register(struct platform_device *pdev,
bank->gpio_chip = samsung_gpiolib_chip;
gc = &bank->gpio_chip;
- gc->base = drvdata->pin_base + bank->pin_base;
+ gc->base = bank->grange.base;
gc->ngpio = bank->nr_pins;
gc->parent = &pdev->dev;
gc->of_node = bank->of_node;
gc->label = bank->name;
- ret = gpiochip_add_data(gc, bank);
+ ret = devm_gpiochip_add_data(&pdev->dev, gc, bank);
if (ret) {
dev_err(&pdev->dev, "failed to register gpio_chip %s, error code: %d\n",
gc->label, ret);
- goto fail;
+ return ret;
}
}
return 0;
-
-fail:
- for (--i, --bank; i >= 0; --i, --bank)
- gpiochip_remove(&bank->gpio_chip);
- return ret;
-}
-
-/* unregister the gpiolib interface with the gpiolib subsystem */
-static int samsung_gpiolib_unregister(struct platform_device *pdev,
- struct samsung_pinctrl_drv_data *drvdata)
-{
- struct samsung_pin_bank *bank = drvdata->pin_banks;
- int i;
-
- for (i = 0; i < drvdata->nr_banks; ++i, ++bank)
- gpiochip_remove(&bank->gpio_chip);
-
- return 0;
}
/* retrieve the soc specific data */
@@ -1060,13 +1055,13 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
return PTR_ERR(drvdata->retention_ctrl);
}
- ret = samsung_gpiolib_register(pdev, drvdata);
+ ret = samsung_pinctrl_register(pdev, drvdata);
if (ret)
return ret;
- ret = samsung_pinctrl_register(pdev, drvdata);
+ ret = samsung_gpiolib_register(pdev, drvdata);
if (ret) {
- samsung_gpiolib_unregister(pdev, drvdata);
+ samsung_pinctrl_unregister(pdev, drvdata);
return ret;
}
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