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Subject[PATCH V4 2/3] gpio: gpio-pmic-eic-sprd: Make the irqchip immutable
Date
From: Cixi Geng <cixi.geng1@unisoc.com>

Remove the irq_chip from pmic_eic structure,
use the various calls by defining the statically
irq_chip structure.

Signed-off-by: Cixi Geng <cixi.geng1@unisoc.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
---
drivers/gpio/gpio-pmic-eic-sprd.c | 29 ++++++++++++++++++-----------
1 file changed, 18 insertions(+), 11 deletions(-)

diff --git a/drivers/gpio/gpio-pmic-eic-sprd.c b/drivers/gpio/gpio-pmic-eic-sprd.c
index e518490c4b68..c3e4d90f6b18 100644
--- a/drivers/gpio/gpio-pmic-eic-sprd.c
+++ b/drivers/gpio/gpio-pmic-eic-sprd.c
@@ -47,7 +47,6 @@ enum {
/**
* struct sprd_pmic_eic - PMIC EIC controller
* @chip: the gpio_chip structure.
- * @intc: the irq_chip structure.
* @map: the regmap from the parent device.
* @offset: the EIC controller's offset address of the PMIC.
* @reg: the array to cache the EIC registers.
@@ -56,7 +55,6 @@ enum {
*/
struct sprd_pmic_eic {
struct gpio_chip chip;
- struct irq_chip intc;
struct regmap *map;
u32 offset;
u8 reg[CACHE_NR_REGS];
@@ -151,15 +149,21 @@ static void sprd_pmic_eic_irq_mask(struct irq_data *data)
{
struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
struct sprd_pmic_eic *pmic_eic = gpiochip_get_data(chip);
+ u32 offset = irqd_to_hwirq(data);

pmic_eic->reg[REG_IE] = 0;
pmic_eic->reg[REG_TRIG] = 0;
+
+ gpiochip_disable_irq(chip, offset);
}

static void sprd_pmic_eic_irq_unmask(struct irq_data *data)
{
struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
struct sprd_pmic_eic *pmic_eic = gpiochip_get_data(chip);
+ u32 offset = irqd_to_hwirq(data);
+
+ gpiochip_enable_irq(chip, offset);

pmic_eic->reg[REG_IE] = 1;
pmic_eic->reg[REG_TRIG] = 1;
@@ -292,6 +296,17 @@ static irqreturn_t sprd_pmic_eic_irq_handler(int irq, void *data)
return IRQ_HANDLED;
}

+static const struct irq_chip pmic_eic_irq_chip = {
+ .name = "sprd-pmic-eic",
+ .irq_mask = sprd_pmic_eic_irq_mask,
+ .irq_unmask = sprd_pmic_eic_irq_unmask,
+ .irq_set_type = sprd_pmic_eic_irq_set_type,
+ .irq_bus_lock = sprd_pmic_eic_bus_lock,
+ .irq_bus_sync_unlock = sprd_pmic_eic_bus_sync_unlock,
+ .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
static int sprd_pmic_eic_probe(struct platform_device *pdev)
{
struct gpio_irq_chip *irq;
@@ -338,16 +353,8 @@ static int sprd_pmic_eic_probe(struct platform_device *pdev)
pmic_eic->chip.set = sprd_pmic_eic_set;
pmic_eic->chip.get = sprd_pmic_eic_get;

- pmic_eic->intc.name = dev_name(&pdev->dev);
- pmic_eic->intc.irq_mask = sprd_pmic_eic_irq_mask;
- pmic_eic->intc.irq_unmask = sprd_pmic_eic_irq_unmask;
- pmic_eic->intc.irq_set_type = sprd_pmic_eic_irq_set_type;
- pmic_eic->intc.irq_bus_lock = sprd_pmic_eic_bus_lock;
- pmic_eic->intc.irq_bus_sync_unlock = sprd_pmic_eic_bus_sync_unlock;
- pmic_eic->intc.flags = IRQCHIP_SKIP_SET_WAKE;
-
irq = &pmic_eic->chip.irq;
- irq->chip = &pmic_eic->intc;
+ gpio_irq_chip_set_chip(irq, &pmic_eic_irq_chip);
irq->threaded = true;

ret = devm_gpiochip_add_data(&pdev->dev, &pmic_eic->chip, pmic_eic);
--
2.34.1
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