[PATCH 1/2] ARM: dts: ux500: Bump AUX1 voltage

[PATCH 1/2] ARM: dts: ux500: Bump AUX1 voltage

[Linus Walleij]

The voltage default on the AB8500 VAUX1 regulator is way
too low and does not correspond to the setting in the
vendor tree. This should be 2.8-3.3 V not 2.5-2.9 V or
things like the HREFP520 touchscreen will not work.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-ab8500.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/ste-ab8500.dtsi b/arch/arm/boot/dts/ste-ab8500.dtsi
index 4fd09997a2b9..a16a00fb5fa5 100644
--- a/arch/arm/boot/dts/ste-ab8500.dtsi
+++ b/arch/arm/boot/dts/ste-ab8500.dtsi
@@ -317,8 +317,8 @@ ab8500-regulators {
 
 					// supplies to the display/camera
 					ab8500_ldo_aux1_reg: ab8500_ldo_aux1 {
-						regulator-min-microvolt = <2500000>;
-						regulator-max-microvolt = <2900000>;
+						regulator-min-microvolt = <2800000>;
+						regulator-max-microvolt = <3300000>;
 						regulator-boot-on;
 						/* BUG: If turned off MMC will be affected. */
 						regulator-always-on;
-- 
2.29.2


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[PATCH 2/2] ARM: dts: ux500: Add Cypress CTTYSP touch to TVK UIB

[Linus Walleij]

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>
---
 arch/arm/boot/dts/ste-href-tvk1281618-r3.dtsi | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/arch/arm/boot/dts/ste-href-tvk1281618-r3.dtsi b/arch/arm/boot/dts/ste-href-tvk1281618-r3.dtsi
index 707d453dd6a5..70f058352efc 100644
--- a/arch/arm/boot/dts/ste-href-tvk1281618-r3.dtsi
+++ b/arch/arm/boot/dts/ste-href-tvk1281618-r3.dtsi
@@ -118,6 +118,38 @@ pressure@5c {
 			};
 		};
 
+		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 @@ tvk_cfg {
 					};
 				};
 			};
+			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>;
+					};
+				};
+			};
 		};
 	};
 };
-- 
2.29.2


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