ARM: dts: rockchip: Add OTP gpio pinctrl to rk3288 tsadc node

Add the "init" anf "sleep" pinctrl as the OTP gpio state.
We need the OTP pin is gpio state before resetting the TSADC controller,
since the tshut polarity will generate a high signal.

"init" pinctrl property is defined by Doug's Patch[0].

Patch[0]:
https://patchwork.kernel.org/patch/7454311/

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 6a79c9c526b8809d9ea201d087d680851653e990..04ea209f1737f9fb052f4efc8589e98aa027836e 100644 (file)
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -452,8 +452,10 @@
                clock-names = "tsadc", "apb_pclk";
                resets = <&cru SRST_TSADC>;
                reset-names = "tsadc-apb";
-               pinctrl-names = "default";
-               pinctrl-0 = <&otp_out>;
+               pinctrl-names = "init", "default", "sleep";
+               pinctrl-0 = <&otp_gpio>;
+               pinctrl-1 = <&otp_out>;
+               pinctrl-2 = <&otp_gpio>;
                #thermal-sensor-cells = <1>;
                rockchip,hw-tshut-temp = <95000>;
                status = "disabled";
@@ -1395,6 +1397,10 @@
                };
 
                tsadc {
+                       otp_gpio: otp-gpio {
+                               rockchip,pins = <0 10 RK_FUNC_GPIO &pcfg_pull_none>;
+                       };
+
                        otp_out: otp-out {
                                rockchip,pins = <0 10 RK_FUNC_1 &pcfg_pull_none>;
                        };