UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ARM: dts: qcom: msm8974-klte: Add gpio expander chip 

The Samsung Galaxy S5 has a GPIO Expander chip, the PCAL6416A with 16
ports on a i2c bus. These pins are used for WiFi, NFC, IR among other
things.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Link: https://lore.kernel.org/r/20200920144859.813032-6-iskren.chernev@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Iskren Chernev 2020-09-20 17:48:57 +03:00 committed by Bjorn Andersson
parent 60367221d7
commit 99128e7503
1 changed files with 27 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
View File

@ -236,10 +236,25 @@
scl-gpios = <&msmgpio 121 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
sda-gpios = <&msmgpio 120 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
pinctrl-names = "default";
pinctrl-0 = <&i2c_led_pins>;
pinctrl-0 = <&i2c_led_gpioex_pins>;
i2c-gpio,delay-us = <2>;
gpio_expander: gpio@20 {
compatible = "nxp,pcal6416";
reg = <0x20>;
gpio-controller;
#gpio-cells = <2>;
vcc-supply = <&pma8084_s4>;
pinctrl-names = "default";
pinctrl-0 = <&gpioex_pin>;
reset-gpios = <&msmgpio 145 GPIO_ACTIVE_LOW>;
};
led-controller@30 {
compatible = "panasonic,an30259a";
reg = <0x30>;
@ -352,7 +367,7 @@
};
};
i2c_led_pins: i2c-led {
i2c_led_gpioex_pins: i2c-led-gpioex {
mux {
pins = "gpio120", "gpio121";
function = "gpio";
@ -360,6 +375,16 @@
bias-pull-down;
};
};
gpioex_pin: gpioex {
res {
pins = "gpio145";
function = "gpio";
bias-pull-up;
drive-strength = <2>;
};
};
};
sdhci@f9824900 {