[PATCH] regulator: rpi-panel-attiny: add back GPIOLIB dependency

[Arnd Bergmann]

From: Arnd Bergmann <arnd@xxxxxxxx>

This driver provides a gpio chip, which is only possible when GPIOLIB
is enabled, which was previously guaranteed by the CONFIG_OF_GPIO
dependency that is now gone:

ERROR: modpost: "gpiochip_get_data" [drivers/regulator/rpi-panel-attiny-regulator.ko] undefined!
ERROR: modpost: "devm_gpiochip_add_data_with_key" [drivers/regulator/rpi-panel-attiny-regulator.ko] undefined!

Add an explicit GPIOLIB dependency instead.

Fixes: bf017304fce1 ("regulator: drop unneeded dependencies on OF_GPIO")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 drivers/regulator/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 390b7e88868a..5d66ca3e1f8a 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -1233,6 +1233,7 @@ config REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY
 	tristate "Raspberry Pi 7-inch touchscreen panel ATTINY regulator"
 	depends on ARM || ARM64 || COMPILE_TEST
 	depends on BACKLIGHT_CLASS_DEVICE
+	depends on GPIOLIB
 	depends on I2C
 	select REGMAP_I2C
 	help
-- 
2.39.5