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authorLinus Walleij <linus.walleij@linaro.org>2019-10-14 14:11:53 +0300
committerLinus Walleij <linus.walleij@linaro.org>2019-10-16 16:56:19 +0300
commit2da7852e54edc917ef27077fb8ade85f6a5e6394 (patch)
tree2dd38782418001df01eeaecd14fcfc8101ddcedc /drivers/pinctrl/nomadik
parentb95e0bd23e3603a0360bac0c28de8e836f1148ca (diff)
downloadlinux-2da7852e54edc917ef27077fb8ade85f6a5e6394.tar.xz
pinctrl: nomadik: Pass irqchip when adding gpiochip
We need to convert all old gpio irqchips to pass the irqchip setup along when adding the gpio_chip. For more info see drivers/gpio/TODO. For chained irqchips this is a pretty straight-forward conversion. Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20191014111154.9731-2-linus.walleij@linaro.org
Diffstat (limited to 'drivers/pinctrl/nomadik')
-rw-r--r--drivers/pinctrl/nomadik/pinctrl-nomadik.c39
1 files changed, 15 insertions, 24 deletions
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index dc81de15b85e..b7992da8b569 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -248,7 +248,6 @@ struct nmk_gpio_chip {
void __iomem *addr;
struct clk *clk;
unsigned int bank;
- unsigned int parent_irq;
void (*set_ioforce)(bool enable);
spinlock_t lock;
bool sleepmode;
@@ -1092,6 +1091,7 @@ static int nmk_gpio_probe(struct platform_device *dev)
struct device_node *np = dev->dev.of_node;
struct nmk_gpio_chip *nmk_chip;
struct gpio_chip *chip;
+ struct gpio_irq_chip *girq;
struct irq_chip *irqchip;
bool supports_sleepmode;
int irq;
@@ -1117,7 +1117,6 @@ static int nmk_gpio_probe(struct platform_device *dev)
* The virt address in nmk_chip->addr is in the nomadik register space,
* so we can simply convert the resource address, without remapping
*/
- nmk_chip->parent_irq = irq;
nmk_chip->sleepmode = supports_sleepmode;
spin_lock_init(&nmk_chip->lock);
@@ -1147,6 +1146,19 @@ static int nmk_gpio_probe(struct platform_device *dev)
chip->base,
chip->base + chip->ngpio - 1);
+ girq = &chip->irq;
+ girq->chip = irqchip;
+ girq->parent_handler = nmk_gpio_irq_handler;
+ girq->num_parents = 1;
+ girq->parents = devm_kcalloc(&dev->dev, 1,
+ sizeof(*girq->parents),
+ GFP_KERNEL);
+ if (!girq->parents)
+ return -ENOMEM;
+ girq->parents[0] = irq;
+ girq->default_type = IRQ_TYPE_NONE;
+ girq->handler = handle_edge_irq;
+
clk_enable(nmk_chip->clk);
nmk_chip->lowemi = readl_relaxed(nmk_chip->addr + NMK_GPIO_LOWEMI);
clk_disable(nmk_chip->clk);
@@ -1158,28 +1170,7 @@ static int nmk_gpio_probe(struct platform_device *dev)
platform_set_drvdata(dev, nmk_chip);
- /*
- * Let the generic code handle this edge IRQ, the the chained
- * handler will perform the actual work of handling the parent
- * interrupt.
- */
- ret = gpiochip_irqchip_add(chip,
- irqchip,
- 0,
- handle_edge_irq,
- IRQ_TYPE_NONE);
- if (ret) {
- dev_err(&dev->dev, "could not add irqchip\n");
- gpiochip_remove(&nmk_chip->chip);
- return -ENODEV;
- }
- /* Then register the chain on the parent IRQ */
- gpiochip_set_chained_irqchip(chip,
- irqchip,
- nmk_chip->parent_irq,
- nmk_gpio_irq_handler);
-
- dev_info(&dev->dev, "at address %p\n", nmk_chip->addr);
+ dev_info(&dev->dev, "chip registered\n");
return 0;
}