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Subject[PATCH v3 3/5] gpio: syscon: Add support for a custom get operation
Date
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 <paul.kocialkowski@bootlin.com>
---
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
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