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authorManikanta Guntupalli <manikanta.guntupalli@amd.com>2023-06-08 20:42:52 +0200
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-06-13 11:48:54 +0200
commitf5691439353783ef114876849c70d2a641e09498 (patch)
tree46b5ac1860b1a741ac4d515576607bd4c15580cb /drivers/gpio/gpio-zynq.c
parentgpio: davinci: make davinci_gpio_dev_pm_ops static (diff)
downloadlinux-f5691439353783ef114876849c70d2a641e09498.tar.xz
linux-f5691439353783ef114876849c70d2a641e09498.zip
gpio: zynq: fix zynqmp_gpio not an immutable chip warning
Make the struct irq_chip const and flag it as IRQCHIP_IMMUTABLE, call gpiochip_disable_irq() in the .irq_mask() callback and gpiochip_enable_irq() in the .irq_unmask() callback to fix "gpio gpiochip1: (zynqmp_gpio): not an immutable chip" warning. Signed-off-by: Manikanta Guntupalli <manikanta.guntupalli@amd.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-zynq.c')
-rw-r--r--drivers/gpio/gpio-zynq.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index 06c6401f02b8..c334e46033ba 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -151,8 +151,8 @@ struct zynq_platform_data {
int bank_max[ZYNQMP_GPIO_MAX_BANK];
};
-static struct irq_chip zynq_gpio_level_irqchip;
-static struct irq_chip zynq_gpio_edge_irqchip;
+static const struct irq_chip zynq_gpio_level_irqchip;
+static const struct irq_chip zynq_gpio_edge_irqchip;
/**
* zynq_gpio_is_zynq - test if HW is zynq or zynqmp
@@ -404,9 +404,12 @@ static int zynq_gpio_get_direction(struct gpio_chip *chip, unsigned int pin)
static void zynq_gpio_irq_mask(struct irq_data *irq_data)
{
unsigned int device_pin_num, bank_num, bank_pin_num;
+ const unsigned long offset = irqd_to_hwirq(irq_data);
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(irq_data);
struct zynq_gpio *gpio =
gpiochip_get_data(irq_data_get_irq_chip_data(irq_data));
+ gpiochip_disable_irq(chip, offset);
device_pin_num = irq_data->hwirq;
zynq_gpio_get_bank_pin(device_pin_num, &bank_num, &bank_pin_num, gpio);
writel_relaxed(BIT(bank_pin_num),
@@ -425,9 +428,12 @@ static void zynq_gpio_irq_mask(struct irq_data *irq_data)
static void zynq_gpio_irq_unmask(struct irq_data *irq_data)
{
unsigned int device_pin_num, bank_num, bank_pin_num;
+ const unsigned long offset = irqd_to_hwirq(irq_data);
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(irq_data);
struct zynq_gpio *gpio =
gpiochip_get_data(irq_data_get_irq_chip_data(irq_data));
+ gpiochip_enable_irq(chip, offset);
device_pin_num = irq_data->hwirq;
zynq_gpio_get_bank_pin(device_pin_num, &bank_num, &bank_pin_num, gpio);
writel_relaxed(BIT(bank_pin_num),
@@ -590,7 +596,7 @@ static void zynq_gpio_irq_relres(struct irq_data *d)
}
/* irq chip descriptor */
-static struct irq_chip zynq_gpio_level_irqchip = {
+static const struct irq_chip zynq_gpio_level_irqchip = {
.name = DRIVER_NAME,
.irq_enable = zynq_gpio_irq_enable,
.irq_eoi = zynq_gpio_irq_ack,
@@ -601,10 +607,11 @@ static struct irq_chip zynq_gpio_level_irqchip = {
.irq_request_resources = zynq_gpio_irq_reqres,
.irq_release_resources = zynq_gpio_irq_relres,
.flags = IRQCHIP_EOI_THREADED | IRQCHIP_EOI_IF_HANDLED |
- IRQCHIP_MASK_ON_SUSPEND,
+ IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
-static struct irq_chip zynq_gpio_edge_irqchip = {
+static const struct irq_chip zynq_gpio_edge_irqchip = {
.name = DRIVER_NAME,
.irq_enable = zynq_gpio_irq_enable,
.irq_ack = zynq_gpio_irq_ack,
@@ -614,7 +621,8 @@ static struct irq_chip zynq_gpio_edge_irqchip = {
.irq_set_wake = zynq_gpio_set_wake,
.irq_request_resources = zynq_gpio_irq_reqres,
.irq_release_resources = zynq_gpio_irq_relres,
- .flags = IRQCHIP_MASK_ON_SUSPEND,
+ .flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
static void zynq_gpio_handle_bank_irq(struct zynq_gpio *gpio,
@@ -962,7 +970,7 @@ static int zynq_gpio_probe(struct platform_device *pdev)
/* Set up the GPIO irqchip */
girq = &chip->irq;
- girq->chip = &zynq_gpio_edge_irqchip;
+ gpio_irq_chip_set_chip(girq, &zynq_gpio_edge_irqchip);
girq->parent_handler = zynq_gpio_irqhandler;
girq->num_parents = 1;
girq->parents = devm_kcalloc(&pdev->dev, 1,