[PATCH v1 3/4] gpio: regmap: Apply default resource callbacks for regmap IRQ chip

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

When GPIO regmap creates an IRQ chip on behalf of the user, it also
takes an ownership of the respective callbacks and driver data.
With that being done, apply default resource callbacks that keep
tracking the IRQ requests and releases.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/gpio/gpio-max7360.c | 7 ++++---
 drivers/gpio/gpio-regmap.c  | 3 +++
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-max7360.c b/drivers/gpio/gpio-max7360.c
index d12cf1dc8d57..07eda49f375b 100644
--- a/drivers/gpio/gpio-max7360.c
+++ b/drivers/gpio/gpio-max7360.c
@@ -127,7 +127,7 @@ static int max7360_handle_mask_sync(const int index,
 				    const unsigned int mask_buf,
 				    void *const irq_drv_data)
 {
-	struct regmap *regmap = irq_drv_data;
+	struct regmap *regmap = gpio_regmap_get_drvdata(irq_drv_data);
 	int ret;
 
 	for (unsigned int i = 0; i < MAX7360_MAX_GPIO; i++) {
@@ -170,7 +170,6 @@ static int max7360_gpio_probe(struct platform_device *pdev)
 
 			/* Create custom IRQ configuration. */
 			irq_chip = devm_kzalloc(dev, sizeof(*irq_chip), GFP_KERNEL);
-			gpio_config.regmap_irq_chip = irq_chip;
 			if (!irq_chip)
 				return -ENOMEM;
 
@@ -181,7 +180,9 @@ static int max7360_gpio_probe(struct platform_device *pdev)
 			irq_chip->num_irqs = MAX7360_MAX_GPIO;
 			irq_chip->irqs = max7360_regmap_irqs;
 			irq_chip->handle_mask_sync = max7360_handle_mask_sync;
-			irq_chip->irq_drv_data = regmap;
+
+			gpio_config.regmap_irq_chip = irq_chip;
+			gpio_config.drvdata = regmap;
 
 			for (unsigned int i = 0; i < MAX7360_MAX_GPIO; i++) {
 				ret = regmap_write_bits(regmap, MAX7360_REG_PWMCFG(i),
diff --git a/drivers/gpio/gpio-regmap.c b/drivers/gpio/gpio-regmap.c
index ad808d8d24b3..d0e65eac9f0b 100644
--- a/drivers/gpio/gpio-regmap.c
+++ b/drivers/gpio/gpio-regmap.c
@@ -419,6 +419,9 @@ struct gpio_regmap *gpio_regmap_register(const struct gpio_regmap_config *config
 #ifdef CONFIG_REGMAP_IRQ
 	if (config->regmap_irq_chip) {
 		gpio->regmap_irq_line = config->regmap_irq_line;
+		config->regmap_irq_chip->irq_reqres = gpio_regmap_irq_reqres;
+		config->regmap_irq_chip->irq_relres = gpio_regmap_irq_relres;
+		config->regmap_irq_chip->irq_drv_data = gpio;
 		ret = regmap_add_irq_chip_fwnode(dev_fwnode(config->parent), config->regmap,
 						 config->regmap_irq_line, config->regmap_irq_flags,
 						 0, config->regmap_irq_chip, &gpio->irq_chip_data);
-- 
2.50.1