[openwrt/openwrt] realtek: enable pca953x GPIO driver for rtl839x subtarget

[LEDE Commits]

svanheule pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/4974ee7341ebf83579331fbe496a832cf7ed6c56

commit 4974ee7341ebf83579331fbe496a832cf7ed6c56
Author: INAGAKI Hiroshi <musashino.open at gmail.com>
AuthorDate: Sun Jul 24 18:03:37 2022 +0900

    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 at gmail.com>
---
 target/linux/realtek/rtl839x/config-5.10 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/linux/realtek/rtl839x/config-5.10 b/target/linux/realtek/rtl839x/config-5.10
index 76a0517ede..1b4e1de43f 100644
--- 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