diff options
Diffstat (limited to 'drivers/pinctrl/qcom/pinctrl-msm.c')
| -rw-r--r-- | drivers/pinctrl/qcom/pinctrl-msm.c | 59 |
1 files changed, 28 insertions, 31 deletions
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c index 7f35c196bb3e..763da0be10d6 100644 --- a/drivers/pinctrl/qcom/pinctrl-msm.c +++ b/drivers/pinctrl/qcom/pinctrl-msm.c @@ -593,36 +593,36 @@ static void msm_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) #define msm_gpio_dbg_show NULL #endif -static int msm_gpio_init_valid_mask(struct gpio_chip *chip) +static int msm_gpio_init_valid_mask(struct gpio_chip *gc, + unsigned long *valid_mask, + unsigned int ngpios) { - struct msm_pinctrl *pctrl = gpiochip_get_data(chip); + struct msm_pinctrl *pctrl = gpiochip_get_data(gc); int ret; unsigned int len, i; - unsigned int max_gpios = pctrl->soc->ngpios; const int *reserved = pctrl->soc->reserved_gpios; u16 *tmp; /* Driver provided reserved list overrides DT and ACPI */ if (reserved) { - bitmap_fill(chip->valid_mask, max_gpios); + bitmap_fill(valid_mask, ngpios); for (i = 0; reserved[i] >= 0; i++) { - if (i >= max_gpios || reserved[i] >= max_gpios) { + if (i >= ngpios || reserved[i] >= ngpios) { dev_err(pctrl->dev, "invalid list of reserved GPIOs\n"); return -EINVAL; } - clear_bit(reserved[i], chip->valid_mask); + clear_bit(reserved[i], valid_mask); } return 0; } /* The number of GPIOs in the ACPI tables */ - len = ret = device_property_read_u16_array(pctrl->dev, "gpios", NULL, - 0); + len = ret = device_property_count_u16(pctrl->dev, "gpios"); if (ret < 0) return 0; - if (ret > max_gpios) + if (ret > ngpios) return -EINVAL; tmp = kmalloc_array(len, sizeof(*tmp), GFP_KERNEL); @@ -635,9 +635,9 @@ static int msm_gpio_init_valid_mask(struct gpio_chip *chip) goto out; } - bitmap_zero(chip->valid_mask, max_gpios); + bitmap_zero(valid_mask, ngpios); for (i = 0; i < len; i++) - set_bit(tmp[i], chip->valid_mask); + set_bit(tmp[i], valid_mask); out: kfree(tmp); @@ -653,7 +653,6 @@ static const struct gpio_chip msm_gpio_template = { .request = gpiochip_generic_request, .free = gpiochip_generic_free, .dbg_show = msm_gpio_dbg_show, - .init_valid_mask = msm_gpio_init_valid_mask, }; /* For dual-edge interrupts in software, since some hardware has no @@ -996,12 +995,13 @@ static bool msm_gpio_needs_valid_mask(struct msm_pinctrl *pctrl) if (pctrl->soc->reserved_gpios) return true; - return device_property_read_u16_array(pctrl->dev, "gpios", NULL, 0) > 0; + return device_property_count_u16(pctrl->dev, "gpios") > 0; } static int msm_gpio_init(struct msm_pinctrl *pctrl) { struct gpio_chip *chip; + struct gpio_irq_chip *girq; int ret; unsigned ngpio = pctrl->soc->ngpios; @@ -1015,7 +1015,8 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl) chip->parent = pctrl->dev; chip->owner = THIS_MODULE; chip->of_node = pctrl->dev->of_node; - chip->need_valid_mask = msm_gpio_needs_valid_mask(pctrl); + if (msm_gpio_needs_valid_mask(pctrl)) + chip->init_valid_mask = msm_gpio_init_valid_mask; pctrl->irq_chip.name = "msmgpio"; pctrl->irq_chip.irq_enable = msm_gpio_irq_enable; @@ -1027,6 +1028,18 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl) pctrl->irq_chip.irq_request_resources = msm_gpio_irq_reqres; pctrl->irq_chip.irq_release_resources = msm_gpio_irq_relres; + girq = &chip->irq; + girq->chip = &pctrl->irq_chip; + girq->parent_handler = msm_gpio_irq_handler; + girq->num_parents = 1; + girq->parents = devm_kcalloc(pctrl->dev, 1, sizeof(*girq->parents), + GFP_KERNEL); + if (!girq->parents) + return -ENOMEM; + girq->default_type = IRQ_TYPE_NONE; + girq->handler = handle_bad_irq; + girq->parents[0] = pctrl->irq; + ret = gpiochip_add_data(&pctrl->chip, pctrl); if (ret) { dev_err(pctrl->dev, "Failed register gpiochip\n"); @@ -1053,20 +1066,6 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl) } } - ret = gpiochip_irqchip_add(chip, - &pctrl->irq_chip, - 0, - handle_edge_irq, - IRQ_TYPE_NONE); - if (ret) { - dev_err(pctrl->dev, "Failed to add irqchip to gpiochip\n"); - gpiochip_remove(&pctrl->chip); - return -ENOSYS; - } - - gpiochip_set_chained_irqchip(chip, &pctrl->irq_chip, pctrl->irq, - msm_gpio_irq_handler); - return 0; } @@ -1160,10 +1159,8 @@ int msm_pinctrl_probe(struct platform_device *pdev, msm_pinctrl_setup_pm_reset(pctrl); pctrl->irq = platform_get_irq(pdev, 0); - if (pctrl->irq < 0) { - dev_err(&pdev->dev, "No interrupt defined for msmgpio\n"); + if (pctrl->irq < 0) return pctrl->irq; - } pctrl->desc.owner = THIS_MODULE; pctrl->desc.pctlops = &msm_pinctrl_ops; |