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@xxxxxxxxxxxx> --- v3: * reintroduced into patch set; bindings are in linux-next --- arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts index 2f720cf2fd07..f4714c4606f3 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts @@ -232,6 +232,9 @@ ap_i2c_dig: &i2c2 { 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>; -- 2.12.0.367.g23dc2f6d3c-goog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html