ARM: dts: imx7d-sdb: Add support for touchscreen

Add support for tsc2046 touchscreen.

Signed-off-by: Diego Dorta <diego.dorta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts
index 8f6a539..6bd8203 100644 (file)
--- a/arch/arm/boot/dts/imx7d-sdb.dts
+++ b/arch/arm/boot/dts/imx7d-sdb.dts
@@ -111,6 +111,32 @@
        arm-supply = <&sw1a_reg>;
 };
 
+&ecspi3 {
+       fsl,spi-num-chipselects = <1>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_ecspi3>;
+       cs-gpios = <&gpio5 9 GPIO_ACTIVE_HIGH>;
+       status = "okay";
+
+       tsc2046@0 {
+               compatible = "ti,tsc2046";
+               reg = <0>;
+               spi-max-frequency = <1000000>;
+               pinctrl-names ="default";
+               pinctrl-0 = <&pinctrl_tsc2046_pendown>;
+               interrupt-parent = <&gpio2>;
+               interrupts = <29 0>;
+               pendown-gpio = <&gpio2 29 GPIO_ACTIVE_HIGH>;
+               ti,x-min = /bits/ 16 <0>;
+               ti,x-max = /bits/ 16 <0>;
+               ti,y-min = /bits/ 16 <0>;
+               ti,y-max = /bits/ 16 <0>;
+               ti,pressure-max = /bits/ 16 <0>;
+               ti,x-plat-ohms = /bits/ 16 <400>;
+               wakeup-source;
+       };
+};
+
 &fec1 {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_enet1>;
@@ -363,6 +389,15 @@
        pinctrl-0 = <&pinctrl_hog>;
 
        imx7d-sdb {
+               pinctrl_ecspi3: ecspi3grp {
+                       fsl,pins = <
+                               MX7D_PAD_SAI2_TX_SYNC__ECSPI3_MISO      0x2
+                               MX7D_PAD_SAI2_TX_BCLK__ECSPI3_MOSI      0x2
+                               MX7D_PAD_SAI2_RX_DATA__ECSPI3_SCLK      0x2
+                               MX7D_PAD_SD2_CD_B__GPIO5_IO9            0x59
+                       >;
+               };
+
                pinctrl_enet1: enet1grp {
                        fsl,pins = <
                                MX7D_PAD_GPIO1_IO10__ENET1_MDIO                 0x3
@@ -474,6 +509,12 @@
                        >;
                };
 
+               pinctrl_tsc2046_pendown: tsc2046_pendown {
+                       fsl,pins = <
+                               MX7D_PAD_EPDC_BDR1__GPIO2_IO29          0x59
+                       >;
+               };
+
                pinctrl_uart1: uart1grp {
                        fsl,pins = <
                                MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX    0x79