[PATCH v2 3/5] gpio: syscon: Add support for a custom get operation
From: Paul Kocialkowski <hidden>
Date: 2019-09-25 08:46:23
Also in:
linux-gpio, lkml
Subsystem:
gpio subsystem, the rest · Maintainers:
Linus Walleij, Bartosz Golaszewski, Linus Torvalds
Some drivers might need a custom get operation to match custom behavior implemented in the set operation. Add plumbing for supporting that. Signed-off-by: Paul Kocialkowski <redacted> --- drivers/gpio/gpio-syscon.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpio/gpio-syscon.c b/drivers/gpio/gpio-syscon.c
index 31f332074d7d..05c537ed73f1 100644
--- a/drivers/gpio/gpio-syscon.c
+++ b/drivers/gpio/gpio-syscon.c@@ -43,8 +43,9 @@ struct syscon_gpio_data { unsigned int bit_count; unsigned int dat_bit_offset; unsigned int dir_bit_offset; - void (*set)(struct gpio_chip *chip, - unsigned offset, int value); + int (*get)(struct gpio_chip *chip, unsigned offset); + void (*set)(struct gpio_chip *chip, unsigned offset, + int value); }; struct syscon_gpio_priv {
@@ -252,7 +253,7 @@ static int syscon_gpio_probe(struct platform_device *pdev) priv->chip.label = dev_name(dev); priv->chip.base = -1; priv->chip.ngpio = priv->data->bit_count; - priv->chip.get = syscon_gpio_get; + priv->chip.get = priv->data->get ? : syscon_gpio_get; if (priv->data->flags & GPIO_SYSCON_FEAT_IN) priv->chip.direction_input = syscon_gpio_dir_in; if (priv->data->flags & GPIO_SYSCON_FEAT_OUT) {
--
2.23.0