From 0675c1ad70a49437fe6711f7456dd14be29a9913 Mon Sep 17 00:00:00 2001 From: Sergey Larin Date: Thu, 20 Jun 2019 20:22:08 +0300 Subject: [PATCH] ARM: dts: tegra20-glide: Add binding for charger MAX8922 is compatible with MAX8903's driver, which is very flexible. So we use it to detect the cable insertion and control the charging. Signed-off-by: Sergey Larin --- arch/arm/boot/dts/tegra20-glide.dts | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/tegra20-glide.dts b/arch/arm/boot/dts/tegra20-glide.dts index 90f2a6eb9d77..b8f3916ec35b 100644 --- a/arch/arm/boot/dts/tegra20-glide.dts +++ b/arch/arm/boot/dts/tegra20-glide.dts @@ -853,8 +853,6 @@ i2c-gpio,delay-us = <1>; #address-cells = <1>; #size-cells = <0>; - //interrupt-parent = <&gpio>; - //interrupts = ; // Use 17040 as 17043 is compatible - no ALRT feature max17043@36 { @@ -862,9 +860,28 @@ reg = <0x36>; interrupt-parent = <&gpio>; interrupts = ; + power-supplies = <&usb_ta_charger>; + /* Fuel alert - not supported (for now?) */ + //interrupt-parent = <&gpio>; + //interrupts = ; }; }; + usb_ta_charger: max8922-charger { + compatible = "maxim,max8903"; + chg-gpios = <&stmpegpio 16 GPIO_ACTIVE_LOW>; + cen-gpios = <&gpio TEGRA_GPIO(R, 3) GPIO_ACTIVE_HIGH>; + uok-gpios = <&gpio TEGRA_GPIO(T, 0) GPIO_ACTIVE_HIGH>; + /* + * Original sources also use FSA9480 for USB charger + * detection, but it's on extcon and not GPIO, + * so skip it since dok (GPIO_TA_nCONNECTED) works fine. + * (specified as uok since USB is detected) + */ + + charger_supply: otg-vbus {}; + }; + i2c@7 { compatible = "i2c-gpio"; sda-gpios = <&gpio TEGRA_GPIO(O, 4) (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; -- 2.22.0