diff options
| author | Thomas Richard <thomas.richard@bootlin.com> | 2025-08-11 15:25:51 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2025-08-11 15:39:31 +0200 |
| commit | 60e92c1009c7c6abd4a9d0caf33a8cba5d09f67c (patch) | |
| tree | e80844d7879b6a46d85e442e0e2c02a6246c7cad /drivers/gpio/gpio-aggregator.c | |
| parent | b31c68fd851e74526ad963362ea205eb97b9a710 (diff) | |
gpio: aggregator: add possibility to attach data to the forwarder
Add a data pointer to store private data in the forwarder.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
Link: https://lore.kernel.org/r/20250811-aaeon-up-board-pinctrl-support-v9-8-29f0cbbdfb30@bootlin.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-aggregator.c')
| -rw-r--r-- | drivers/gpio/gpio-aggregator.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-aggregator.c b/drivers/gpio/gpio-aggregator.c index f0d38d76cf73..fb3694d581d1 100644 --- a/drivers/gpio/gpio-aggregator.c +++ b/drivers/gpio/gpio-aggregator.c @@ -246,6 +246,7 @@ struct gpiochip_fwd { spinlock_t slock; /* protects tmp[] if !can_sleep */ }; struct gpiochip_fwd_timing *delay_timings; + void *data; unsigned long *valid_mask; unsigned long tmp[]; /* values and descs for multiple ops */ }; @@ -505,6 +506,18 @@ struct gpio_chip *gpiochip_fwd_get_gpiochip(struct gpiochip_fwd *fwd) EXPORT_SYMBOL_NS_GPL(gpiochip_fwd_get_gpiochip, "GPIO_FORWARDER"); /** + * gpiochip_fwd_get_data - Get driver-private data for the GPIO forwarder + * @fwd: GPIO forwarder + * + * Returns: The driver-private data for the GPIO forwarder + */ +void *gpiochip_fwd_get_data(struct gpiochip_fwd *fwd) +{ + return fwd->data; +} +EXPORT_SYMBOL_NS_GPL(gpiochip_fwd_get_data, "GPIO_FORWARDER"); + +/** * gpiochip_fwd_gpio_request - Request a line of the GPIO forwarder * @fwd: GPIO forwarder * @offset: the offset of the line to request @@ -768,10 +781,11 @@ EXPORT_SYMBOL_NS_GPL(gpiochip_fwd_desc_free, "GPIO_FORWARDER"); /** * gpiochip_fwd_register - Register a GPIO forwarder * @fwd: GPIO forwarder + * @data: driver-private data associated with this forwarder * * Returns: 0 on success, or negative errno on failure. */ -int gpiochip_fwd_register(struct gpiochip_fwd *fwd) +int gpiochip_fwd_register(struct gpiochip_fwd *fwd, void *data) { struct gpio_chip *chip = &fwd->chip; @@ -787,6 +801,8 @@ int gpiochip_fwd_register(struct gpiochip_fwd *fwd) else spin_lock_init(&fwd->slock); + fwd->data = data; + return devm_gpiochip_add_data(chip->parent, chip, fwd); } EXPORT_SYMBOL_NS_GPL(gpiochip_fwd_register, "GPIO_FORWARDER"); @@ -831,7 +847,7 @@ static struct gpiochip_fwd *gpiochip_fwd_create(struct device *dev, return ERR_PTR(error); } - error = gpiochip_fwd_register(fwd); + error = gpiochip_fwd_register(fwd, NULL); if (error) return ERR_PTR(error); |