ARM: dts: imx53-ppd: use PMIC's TSI pins in adc mode

PPD uses the PMIC's TSI pins in general purpose ADC mode.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx53-ppd.dts b/arch/arm/boot/dts/imx53-ppd.dts
index 123297d..57730dd 100644 (file)
--- a/arch/arm/boot/dts/imx53-ppd.dts
+++ b/arch/arm/boot/dts/imx53-ppd.dts
@@ -132,6 +132,14 @@
                enable-active-high;
        };
 
+       reg_tsiref: regulator-tsiref {
+               compatible = "regulator-fixed";
+               regulator-name = "tsiref";
+               regulator-min-microvolt = <2500000>;
+               regulator-max-microvolt = <2500000>;
+               regulator-always-on;
+       };
+
        pwm_bl: backlight {
                compatible = "pwm-backlight";
                pwms = <&pwm2 0 50000>;
@@ -294,6 +302,8 @@
                interrupt-parent = <&gpio3>;
                interrupts = <12 0x8>;
                spi-max-frequency = <1000000>;
+               dlg,tsi-as-adc;
+               tsiref-supply = <&reg_tsiref>;
 
                regulators {
                        buck1_reg: buck1 {