ARM: dts: ux500: Add Cypress CTTYSP touch to TVK UIB

The TVK1281618 R3 UIB has a Cypress CTTYSP touchscreen.
Add it to the device tree file.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/arch/arm/boot/dts/ste-href-tvk1281618-r3.dtsi b/arch/arm/boot/dts/ste-href-tvk1281618-r3.dtsi
index 707d453dd6a5f8f6cdcf172e8f4eac0002fbfa30..70f058352efcae16ee359d604e7c0748404d8bfd 100644 (file)
--- a/arch/arm/boot/dts/ste-href-tvk1281618-r3.dtsi
+++ b/arch/arm/boot/dts/ste-href-tvk1281618-r3.dtsi
@@ -118,6 +118,38 @@
                        };
                };
 
+               spi@80111000 {
+                       num-cs = <1>;
+                       cs-gpios = <&gpio6 24 GPIO_ACTIVE_LOW>;
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&spi2_default_mode>;
+                       status = "okay";
+
+                       touchscreen@0 {
+                               compatible = "cypress,cy8ctma340";
+                               /*
+                                * Actually the max frequency is 6 MHz, but over 2 MHz the
+                                * data rate needs to be restricted to max 2Mbps which the
+                                * SPI framework cannot handle.
+                                */
+                               spi-max-frequency = <2000000>;
+                               reg = <0>;
+                               interrupt-parent = <&gpio2>;
+                               interrupts = <20 IRQ_TYPE_EDGE_FALLING>;
+                               vcpin-supply = <&ab8500_ldo_aux1_reg>;
+                               vdd-supply = <&db8500_vsmps2_reg>;
+                               reset-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
+                               touchscreen-size-x = <480>;
+                               touchscreen-size-y = <854>;
+                               active-interval-ms = <0>;
+                               touch-timeout-ms = <255>;
+                               lowpower-interval-ms = <10>;
+                               bootloader-key = /bits/ 8 <0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07>;
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&cyttsp_tvk_mode>;
+                       };
+               };
+
                mcde@a0350000 {
                        status = "okay";
 
@@ -167,6 +199,20 @@
                                        };
                                };
                        };
+                       cyttsp {
+                               cyttsp_tvk_mode: cyttsp_tvk {
+                                       /* Touchscreen uses GPIO84 for IRQ */
+                                       tvk_cfg1 {
+                                               pins = "GPIO84_C2";
+                                               ste,config = <&gpio_in_pu>;
+                                       };
+                                       /* GPIO143 is reset */
+                                       tvk_cfg2 {
+                                               pins = "GPIO143_D12";
+                                               ste,config = <&gpio_out_hi>;
+                                       };
+                               };
+                       };
                };
        };
 };