diff options
| author | Iskren Chernev <[email protected]> | 2020-09-20 17:48:57 +0300 |
|---|---|---|
| committer | Bjorn Andersson <[email protected]> | 2020-10-26 09:52:39 -0500 |
| commit | 99128e7503bed5475aadd10fa97b1d7ffc5a35c2 (patch) | |
| tree | 8248d77e47f635883b2dd61929366c4e436fab1c | |
| parent | 60367221d7d46d623dbef4cd30924e99c97ff2e5 (diff) | |
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 <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
| -rw-r--r-- | arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts index 7b398da9b75e..29099b83b231 100644 --- a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts +++ b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts @@ -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 { |