[PATCH] backlight: aw99706: Fix build errors caused by wrong gpio header

[Junjie Cao <junjie.cao@intel.com>]

The driver uses GPIO descriptor API (devm_gpiod_get,
gpiod_set_value_cansleep, GPIOD_OUT_LOW) but includes the legacy
<linux/gpio.h> header instead of <linux/gpio/consumer.h>.

When CONFIG_GPIOLIB is not set, <linux/gpio.h> does not include
<linux/gpio/consumer.h>, causing build errors:

  error: implicit declaration of function 'gpiod_set_value_cansleep'
  error: implicit declaration of function 'devm_gpiod_get'
  error: 'GPIOD_OUT_LOW' undeclared

Fix by including the correct header <linux/gpio/consumer.h>.

Fixes: 147b38a5ad06 ("backlight: aw99706: Add support for Awinic AW99706 backlight")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202512171631.uKXlYwqu-lkp@intel.com/
Signed-off-by: Junjie Cao <junjie.cao@intel.com>
---
 drivers/video/backlight/aw99706.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/aw99706.c b/drivers/video/backlight/aw99706.c
index df5b23b2f753..938f352aaab7 100644
--- a/drivers/video/backlight/aw99706.c
+++ b/drivers/video/backlight/aw99706.c
@@ -12,7 +12,7 @@
 #include <linux/backlight.h>
 #include <linux/bitfield.h>
 #include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-- 
2.43.0