If CONFIG_DRM_LONTIUM_LT8912B=m, the following errors will be seen while compiling lontium-lt8912b.c
drivers/gpu/drm/bridge/lontium-lt8912b.c: In function ‘lt8912_hard_power_on’: drivers/gpu/drm/bridge/lontium-lt8912b.c:252:2: error: implicit declaration of function ‘gpiod_set_value_cansleep’; did you mean ‘gpio_set_value_cansleep’? [-Werror=implicit-function-declaration] gpiod_set_value_cansleep(lt->gp_reset, 0); ^~~~~~~~~~~~~~~~~~~~~~~~ gpio_set_value_cansleep drivers/gpu/drm/bridge/lontium-lt8912b.c: In function ‘lt8912_parse_dt’: drivers/gpu/drm/bridge/lontium-lt8912b.c:628:13: error: implicit declaration of function ‘devm_gpiod_get_optional’; did you mean ‘devm_gpio_request_one’? [-Werror=implicit-function-declaration] gp_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); ^~~~~~~~~~~~~~~~~~~~~~~ devm_gpio_request_one drivers/gpu/drm/bridge/lontium-lt8912b.c:628:51: error: ‘GPIOD_OUT_HIGH’ undeclared (first use in this function); did you mean ‘GPIOF_INIT_HIGH’? gp_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); ^~~~~~~~~~~~~~ GPIOF_INIT_HIGH
Signed-off-by: Zhang Jianhua zhangjianhua18@huawei.com Reviewed-by: Robert Foss robert.foss@linaro.org --- v2: - add header file <linux/gpio/consumer.h> for lontium-lt8912b.c instead of add config dependence for CONFIG_DRM_LONTIUM_LT8912B v3: - change the #include in alphabetical order --- drivers/gpu/drm/bridge/lontium-lt8912b.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bridge/lontium-lt8912b.c index 61491615bad0..4f693123985b 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -5,6 +5,7 @@
#include <linux/device.h> #include <linux/delay.h> +#include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/gpio.h> #include <linux/of_gpio.h>