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arm64: dts: rockchip: add regulator info for Kevin digitizer 

We need to enable this regulator before the digitizer can be used. Wacom
recommended waiting for 100 ms before talking to the HID.

Signed-off-by: Brian Norris <briannorris@chromium.org>
[store chip ident as comment until i2c multi-compatibles are sorted]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Brian Norris 2017-03-20 16:53:44 -07:00 committed by Heiko Stuebner
parent acaa71a6c7
commit b9ed79fa91
1 changed files with 4 additions and 0 deletions
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arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
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@ -223,11 +223,15 @@ ap_i2c_dig: &i2c2 {
i2c-scl-rising-time-ns = <300>;
digitizer: digitizer@9 {
/* wacom,w9013 */
compatible = "hid-over-i2c";
reg = <0x9>;
pinctrl-names = "default";
pinctrl-0 = <&cpu1_dig_irq_l &cpu1_dig_pdct_l>;
vdd-supply = <&p3_3v_dig>;
post-power-on-delay-ms = <100>;
interrupt-parent = <&gpio2>;
interrupts = <4 IRQ_TYPE_LEVEL_LOW>;