realtek: enable pca953x GPIO driver for rtl839x subtarget

The system status LED on Panasonic Switch-M48eG PN28480K is connected to
a PCA9539PW. To use the LED as a status LED of OpenWrt while booting,
enable the pca953x driver and built-in to the kernel.
Also enable CONFIG_GPIO_PCA953X_IRQ to use interrupt via RTL83xx GPIO.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>

diff --git a/target/linux/realtek/rtl839x/config-5.10 b/target/linux/realtek/rtl839x/config-5.10
index 76a0517ede495940122395d1653c77a2308dafc7..1b4e1de43fce2068b680d4b36104a5476326de3f 100644 (file)
--- a/target/linux/realtek/rtl839x/config-5.10
+++ b/target/linux/realtek/rtl839x/config-5.10
@@ -70,6 +70,8 @@ CONFIG_GENERIC_TIME_VSYSCALL=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIOLIB_IRQCHIP=y
 CONFIG_GPIO_GENERIC=y
+CONFIG_GPIO_PCA953X=y
+CONFIG_GPIO_PCA953X_IRQ=y
 CONFIG_GPIO_REALTEK_OTTO=y
 CONFIG_GPIO_RTL8231=y
 CONFIG_GRO_CELLS=y
@@ -169,6 +171,7 @@ CONFIG_REALTEK_OTTO_WDT=y
 CONFIG_REALTEK_PHY=y
 CONFIG_REALTEK_SOC_PHY=y
 CONFIG_REGMAP=y
+CONFIG_REGMAP_I2C=y
 CONFIG_REGMAP_MMIO=y
 CONFIG_RESET_CONTROLLER=y
 CONFIG_RTL83XX=y