[RFC PATCH 2/6] dt-bindings: display/ti: add k2g-dss bindings

[RFC PATCH 2/6] dt-bindings: display/ti: add k2g-dss bindings

[Tomi Valkeinen]

Add DT bindings for Texas Instruments K2G SoC Display Subsystem. The DSS
is quite simple, with a single plane and a single output.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: devicetree@vger.kernel.org
---
 .../devicetree/bindings/display/ti/ti,k2g-dss.txt | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/ti/ti,k2g-dss.txt

diff --git a/Documentation/devicetree/bindings/display/ti/ti,k2g-dss.txt b/Documentation/devicetree/bindings/display/ti/ti,k2g-dss.txt
new file mode 100644
index 000000000000..1af11425eda3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/ti/ti,k2g-dss.txt
@@ -0,0 +1,15 @@
+Texas Instruments K2G Display Subsystem
+=======================================
+
+Required properties:
+- compatible: "ti,k2g-dss"
+- reg: address and length of the register spaces for DSS submodules
+- reg-names: "cfg", "common", "vid1", "ovr1", "vp1"
+- clocks: phandle to fclk and vp1 clocks
+- clock-names: "fck", "vp1"
+- interrupts: phandle to the DISPC interrupt
+
+The DSS outputs are described using the device graphs as documented in
+Documentation/devicetree/bindings/graph.txt. K2G DSS has a single DPI output as
+port 0.
+
-- 
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

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Re: [RFC PATCH 2/6] dt-bindings: display/ti: add k2g-dss bindings

[Rob Herring]

On Thu, May 31, 2018 at 03:41:05PM +0300, Tomi Valkeinen wrote:
> Add DT bindings for Texas Instruments K2G SoC Display Subsystem. The DSS
> is quite simple, with a single plane and a single output.
> 
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: devicetree@vger.kernel.org
> ---
>  .../devicetree/bindings/display/ti/ti,k2g-dss.txt | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/ti/ti,k2g-dss.txt

Reviewed-by: Rob Herring <robh@kernel.org>
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[RFC PATCH 5/6] ARM: dts: keystone-k2g: add DSS node

[Tomi Valkeinen]

Add DSS node to k2g.dtsi.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: devicetree@vger.kernel.org
---
 arch/arm/boot/dts/keystone-k2g.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/keystone-k2g.dtsi b/arch/arm/boot/dts/keystone-k2g.dtsi
index da78c0034427..d761fe7d46e7 100644
--- a/arch/arm/boot/dts/keystone-k2g.dtsi
+++ b/arch/arm/boot/dts/keystone-k2g.dtsi
@@ -609,5 +609,26 @@
 			reg = <0x21010000 0x200>;
 			interrupts = <GIC_SPI 123 IRQ_TYPE_EDGE_RISING>;
 		};
+
+		dss: dss@02540000 {
+			compatible = "ti,k2g-dss";
+
+			reg = <0x02540000 0x400>,
+			      <0x02550000 0x1000>,
+			      <0x02557000 0x1000>,
+			      <0x0255a800 0x100>,
+			      <0x0255ac00 0x100>;
+
+			reg-names = "cfg", "common", "vid1", "ovr1", "vp1";
+
+			clocks = <&k2g_clks 0x2 0>, <&k2g_clks 0x2 1>;
+			clock-names = "fck", "vp1";
+
+			power-domains = <&k2g_pds 0x2>;
+
+			interrupts = <GIC_SPI 247 IRQ_TYPE_EDGE_RISING>;
+
+			status = "disabled";
+		};
 	};
 };
-- 
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Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

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[RFC PATCH 6/6] ARM: dts: keystone-k2g-evm: add LCD and HDMI displays

[Tomi Valkeinen]

K2G EVM has an SiI902x HDMI encoder on the board, and a separately
purchasable LCD which can be attached to the board. Only one of these
displays can be used at a time, and two dip-switches need to be changed
when switching to another display.

The HDMI support is added to the base k2g-evm.dts file, and the LCD
support is added as a separate k2g-evm-lcd.dts file. The user must
choose one of the dtbs, depending on which display he wants to use.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: devicetree@vger.kernel.org
---
 arch/arm/boot/dts/Makefile                 |  1 +
 arch/arm/boot/dts/keystone-k2g-evm-lcd.dts | 80 +++++++++++++++++++
 arch/arm/boot/dts/keystone-k2g-evm.dts     | 91 ++++++++++++++++++++++
 3 files changed, 172 insertions(+)
 create mode 100644 arch/arm/boot/dts/keystone-k2g-evm-lcd.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 7e2424957809..11bb3ba22bdf 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -222,6 +222,7 @@ dtb-$(CONFIG_ARCH_KEYSTONE) += \
 	keystone-k2l-evm.dtb \
 	keystone-k2e-evm.dtb \
 	keystone-k2g-evm.dtb \
+	keystone-k2g-evm-lcd.dtb \
 	keystone-k2g-ice.dtb
 dtb-$(CONFIG_MACH_KIRKWOOD) += \
 	kirkwood-b3.dtb \
diff --git a/arch/arm/boot/dts/keystone-k2g-evm-lcd.dts b/arch/arm/boot/dts/keystone-k2g-evm-lcd.dts
new file mode 100644
index 000000000000..be0498010e71
--- /dev/null
+++ b/arch/arm/boot/dts/keystone-k2g-evm-lcd.dts
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for K2G EVM with LCD Display
+ *
+ * Copyright (C) 2016-2018 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+#include "keystone-k2g-evm.dts"
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+	lcd0: display {
+		compatible = "newhaven,nhd-4.3-480272ef-atxl", "panel-dpi";
+		label = "lcd";
+
+		backlight = <&lcd_bl>;
+
+		panel-timing {
+			clock-frequency = <9000000>;
+			hactive = <480>;
+			vactive = <272>;
+			hfront-porch = <2>;
+			hback-porch = <2>;
+			hsync-len = <41>;
+			vfront-porch = <2>;
+			vback-porch = <2>;
+			vsync-len = <10>;
+			hsync-active = <0>;
+			vsync-active = <0>;
+			de-active = <1>;
+			pixelclk-active = <1>;
+		};
+
+		port {
+			lcd_in: endpoint {
+				remote-endpoint = <&dpi_out>;
+			};
+		};
+	};
+
+	lcd_bl: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&ecap0 0 50000 PWM_POLARITY_INVERTED>;
+		brightness-levels = <0 32 64 96 128 160 192 224 255>;
+		default-brightness-level = <8>;
+	};
+};
+
+&i2c1 {
+	edt-ft5306@38 {
+		status = "okay";
+		compatible = "edt,edt-ft5306", "edt,edt-ft5x06";
+		reg = <0x38>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&edt_ft5306_ts_pins>;
+
+		interrupt-parent = <&gpio1>;
+		interrupts = <42 IRQ_TYPE_EDGE_FALLING>;
+
+		touchscreen-size-x = <480>;
+		touchscreen-size-y = <272>;
+	};
+};
+
+&k2g_pinctrl {
+	edt_ft5306_ts_pins: edt_ft5306_ts_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x1364) (BUFFER_CLASS_B | PIN_PULLDOWN | MUX_MODE3)	/* pr1_pru1_gpo16.gpio1_42 */
+		>;
+	};
+};
+
+&dpi_out {
+	remote-endpoint = <&lcd_in>;
+};
+
+&sii9022 {
+	status = "disabled";
+};
diff --git a/arch/arm/boot/dts/keystone-k2g-evm.dts b/arch/arm/boot/dts/keystone-k2g-evm.dts
index 6a4657799b99..e94be4a1bbd3 100644
--- a/arch/arm/boot/dts/keystone-k2g-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2g-evm.dts
@@ -81,6 +81,13 @@
 		>;
 	};
 
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x1384) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* i2c1_scl.i2c1_scl */
+			K2G_CORE_IOPAD(0x1388) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* i2c1_sda.i2c1_sda */
+		>;
+	};
+
 	ecap0_pins: ecap0_pins {
 		pinctrl-single,pins = <
 			K2G_CORE_IOPAD(0x1374) (BUFFER_CLASS_B | MUX_MODE4)	/* pr1_mdio_data.ecap0_in_apwm0_out */
@@ -114,6 +121,46 @@
 			K2G_CORE_IOPAD(0x11f0) (BUFFER_CLASS_B | PIN_PULLDOWN | MUX_MODE0)      /* uart2_txd.uart2_txd */
 		>;
 	};
+
+	vout_pins: pinmux_vout_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x1078) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata23.dssdata23 */
+			K2G_CORE_IOPAD(0x107c) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata22.dssdata22 */
+			K2G_CORE_IOPAD(0x1080) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata21.dssdata21 */
+			K2G_CORE_IOPAD(0x1084) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata20.dssdata20 */
+			K2G_CORE_IOPAD(0x1088) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata19.dssdata19 */
+			K2G_CORE_IOPAD(0x108c) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata18.dssdata18 */
+			K2G_CORE_IOPAD(0x1090) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata17.dssdata17 */
+			K2G_CORE_IOPAD(0x1094) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata16.dssdata16 */
+			K2G_CORE_IOPAD(0x1098) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata15.dssdata15 */
+			K2G_CORE_IOPAD(0x109c) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata14.dssdata14 */
+			K2G_CORE_IOPAD(0x10a0) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata13.dssdata13 */
+			K2G_CORE_IOPAD(0x10a4) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata12.dssdata12 */
+			K2G_CORE_IOPAD(0x10a8) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata11.dssdata11 */
+			K2G_CORE_IOPAD(0x10ac) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata10.dssdata10 */
+			K2G_CORE_IOPAD(0x10b0) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata9.dssdata9 */
+			K2G_CORE_IOPAD(0x10b4) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata8.dssdata8 */
+			K2G_CORE_IOPAD(0x10b8) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata7.dssdata7 */
+			K2G_CORE_IOPAD(0x10bc) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata6.dssdata6 */
+			K2G_CORE_IOPAD(0x10c0) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata5.dssdata5 */
+			K2G_CORE_IOPAD(0x10c4) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata4.dssdata4 */
+			K2G_CORE_IOPAD(0x10c8) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata3.dssdata3 */
+			K2G_CORE_IOPAD(0x10cc) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata2.dssdata2 */
+			K2G_CORE_IOPAD(0x10d0) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata1.dssdata1 */
+			K2G_CORE_IOPAD(0x10d4) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssdata0.dssdata0 */
+			K2G_CORE_IOPAD(0x10d8) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssvsync.dssvsync */
+			K2G_CORE_IOPAD(0x10dc) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dsshsync.dsshsync */
+			K2G_CORE_IOPAD(0x10e0) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dsspclk.dsspclk */
+			K2G_CORE_IOPAD(0x10e4) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssde.dssde */
+			K2G_CORE_IOPAD(0x10e8) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* dssfid.dssfid */
+		>;
+	};
+
+	sii9022_pins: sii9022_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x1338) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE3)      /* pr1_pru1_gpo5.gpio1_31 */
+		>;
+	};
 };
 
 &uart0 {
@@ -268,3 +315,47 @@
 	pinctrl-0 = <&uart2_pins>;
 	status = "okay";
 };
+
+&dss {
+	pinctrl-names = "default";
+	pinctrl-0 = <&vout_pins>;
+	status = "ok";
+
+	port {
+		dpi_out: endpoint {
+			remote-endpoint = <&sii9022_in>;
+		};
+	};
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+	status = "okay";
+	clock-frequency = <400000>;
+
+	sii9022: sii9022@3b {
+		compatible = "sil,sii9022";
+		reg = <0x3b>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&sii9022_pins>;
+
+		/* Should be IRQ_TYPE_LEVEL_LOW, but k2g does not support it */
+		interrupt-parent = <&gpio1>;
+		interrupts = <31 IRQ_TYPE_EDGE_FALLING>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				sii9022_in: endpoint {
+					remote-endpoint = <&dpi_out>;
+				};
+			};
+		};
+	};
+};
-- 
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