[PATCH v3 0/3] AM57x EVM Device Tree Overlays

[PATCH v3 0/3] AM57x EVM Device Tree Overlays

[Andrew Davis]

Hello all,

These is an uncontroversial (hopefully) DT Overlay to support the
TI AM57x EVM. More complex cases are staged and ready to follow but
wanted to test the water with this one.

For some reason dtbs_check does not get run on overlays, this
will need further investigation to fix in kbuild. For now I ran
it through manually but am not 100% sure it actually checked it,
so double checks here very welcome.

Thanks,
Andrew

Changes from v2:
 - Rebased on v6.2-rc5

Changes from v1:
 - Made touchscreen node name generic
 - Used proper interrupt flags

Andrew Davis (3):
  ARM: dts: ti: Add AM57xx GP EVM board support
  ARM: dts: ti: Add AM57xx GP EVM Rev A3 board support
  ARM: dts: am57xx-idk: Add IDK displays and touchscreens

 arch/arm/boot/dts/Makefile                    |   8 ++
 arch/arm/boot/dts/am571x-idk-touchscreen.dtso |  32 +++++
 arch/arm/boot/dts/am572x-idk-touchscreen.dtso |  32 +++++
 arch/arm/boot/dts/am57xx-evm.dtso             | 127 ++++++++++++++++++
 .../boot/dts/am57xx-idk-lcd-osd101t2045.dtso  |  63 +++++++++
 .../boot/dts/am57xx-idk-lcd-osd101t2587.dtso  |  66 +++++++++
 6 files changed, 328 insertions(+)
 create mode 100644 arch/arm/boot/dts/am571x-idk-touchscreen.dtso
 create mode 100644 arch/arm/boot/dts/am572x-idk-touchscreen.dtso
 create mode 100644 arch/arm/boot/dts/am57xx-evm.dtso
 create mode 100644 arch/arm/boot/dts/am57xx-idk-lcd-osd101t2045.dtso
 create mode 100644 arch/arm/boot/dts/am57xx-idk-lcd-osd101t2587.dtso

-- 
2.38.1

[PATCH v3 1/3] ARM: dts: ti: Add AM57xx GP EVM board support

[Andrew Davis]

The AM57xx GP EVM boards are built on top the AM57xx BeagleBoard-X15.
The EVM extends the BeagleBoard by adding a touchscreen, some buttons,
and a handful of peripheral extension slots.

Being a plugin extension of an existing standalone board; we define
the am57xx-evm as a composite-DTB of the base am57xx-beagle-x15
and a new am57xx-evm overlay.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Andrew Davis <afd@ti.com>
---
 arch/arm/boot/dts/Makefile        |   2 +
 arch/arm/boot/dts/am57xx-evm.dtso | 127 ++++++++++++++++++++++++++++++
 2 files changed, 129 insertions(+)
 create mode 100644 arch/arm/boot/dts/am57xx-evm.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index d08a3c450ce7..fa14bdc36a99 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -988,10 +988,12 @@ dtb-$(CONFIG_SOC_OMAP5) += \
 	omap5-igep0050.dtb \
 	omap5-sbc-t54.dtb \
 	omap5-uevm.dtb
+am57xx-evm-dtbs := am57xx-beagle-x15.dtb am57xx-evm.dtbo
 dtb-$(CONFIG_SOC_DRA7XX) += \
 	am57xx-beagle-x15.dtb \
 	am57xx-beagle-x15-revb1.dtb \
 	am57xx-beagle-x15-revc.dtb \
+	am57xx-evm.dtb \
 	am5729-beagleboneai.dtb \
 	am57xx-cl-som-am57x.dtb \
 	am57xx-sbc-am57x.dtb \
diff --git a/arch/arm/boot/dts/am57xx-evm.dtso b/arch/arm/boot/dts/am57xx-evm.dtso
new file mode 100644
index 000000000000..12385a31061e
--- /dev/null
+++ b/arch/arm/boot/dts/am57xx-evm.dtso
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * DT overlay for AM57xx GP EVM boards
+ *
+ * Copyright (C) 2020-2022 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+&{/} {
+	compatible = "ti,am5728-evm", "ti,am572x-beagle-x15", "ti,am5728", "ti,dra742", "ti,dra74", "ti,dra7";
+	model = "TI AM5728 EVM";
+
+	aliases {
+		display0 = "/display";
+		display1 = "/connector"; // Fixme: &lcd0 and &hdmi0 could be
+					 // resolved here correcly based on
+					 // information in the base dtb symbol
+					 // table with a fix in dtc
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		button-user1 {
+			gpios = <&gpio2 23 GPIO_ACTIVE_LOW>;
+			label = "USER1";
+			linux,code = <BTN_1>;
+		};
+
+		button-user2 {
+			gpios = <&gpio2 25 GPIO_ACTIVE_LOW>;
+			label = "USER2";
+			linux,code = <BTN_2>;
+		};
+
+		button-user3 {
+			gpios = <&gpio2 28 GPIO_ACTIVE_LOW>;
+			label = "USER3";
+			linux,code = <BTN_3>;
+		};
+
+		button-user4 {
+			gpios = <&gpio2 24 GPIO_ACTIVE_LOW>;
+			label = "USER4";
+			linux,code = <BTN_4>;
+		};
+
+		button-user5 {
+			gpios = <&gpio2 20 GPIO_ACTIVE_LOW>;
+			label = "USER5";
+			linux,code = <BTN_5>;
+		};
+	};
+
+	lcd0: display {
+		compatible = "osddisplays,osd070t1718-19ts", "panel-dpi";
+		backlight = <&lcd_bl>;
+		enable-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;
+		label = "lcd";
+
+		port {
+			lcd_in: endpoint {
+				remote-endpoint = <&dpi_out>;
+			};
+		};
+	};
+
+	lcd_bl: backlight {
+		compatible = "pwm-backlight";
+		brightness-levels = <0 243 245 247 249 251 252 253 255>;
+		default-brightness-level = <8>;
+		pwms = <&ehrpwm1 0 50000 0>;
+	};
+};
+
+&ehrpwm1 {
+	status = "okay";
+};
+
+&epwmss1 {
+	status = "okay";
+};
+
+&i2c5 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	touchscreen@5c {
+		compatible = "pixcir,pixcir_tangoc";
+		attb-gpio = <&gpio2 4 GPIO_ACTIVE_HIGH>;
+		interrupt-parent = <&gpio2>;
+		interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
+		reg = <0x5c>;
+		reset-gpio = <&gpio2 6 GPIO_ACTIVE_HIGH>;
+		touchscreen-size-x = <1024>;
+		touchscreen-size-y = <600>;
+	};
+};
+
+&uart8 {
+	status = "okay";
+};
+
+&dss {
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+
+			dpi_out: endpoint {
+				data-lines = <24>;
+				remote-endpoint = <&lcd_in>;
+			};
+		};
+	};
+};
-- 
2.38.1

[PATCH v3 2/3] ARM: dts: ti: Add AM57xx GP EVM Rev A3 board support

[Andrew Davis]

The A3 revision of the AM57xx GP EVM has the same EVM feature set as the
original but is paired with an updated revision C BeagleBoard X15.

DT Overlays allow us to model this in the same way, we simply apply the
EVM overlay to the Rev C BeagleBoard to create the Rev A3 AM57xx GP EVM.

Signed-off-by: Andrew Davis <afd@ti.com>
---
 arch/arm/boot/dts/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index fa14bdc36a99..ecc3b00bc2e2 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -989,11 +989,13 @@ dtb-$(CONFIG_SOC_OMAP5) += \
 	omap5-sbc-t54.dtb \
 	omap5-uevm.dtb
 am57xx-evm-dtbs := am57xx-beagle-x15.dtb am57xx-evm.dtbo
+am57xx-evm-reva3-dtbs := am57xx-beagle-x15-revc.dtb am57xx-evm.dtbo
 dtb-$(CONFIG_SOC_DRA7XX) += \
 	am57xx-beagle-x15.dtb \
 	am57xx-beagle-x15-revb1.dtb \
 	am57xx-beagle-x15-revc.dtb \
 	am57xx-evm.dtb \
+	am57xx-evm-reva3.dtb \
 	am5729-beagleboneai.dtb \
 	am57xx-cl-som-am57x.dtb \
 	am57xx-sbc-am57x.dtb \
-- 
2.38.1

[PATCH v3 3/3] ARM: dts: am57xx-idk: Add IDK displays and touchscreens

[Andrew Davis]

This is a more interesting use of DT Overlays than the previous patches.
Here we have two touchscreen modules. Each is compatible with, and can be
attached to, either of the two AM57xx IDK development board variants
(AM571x or AM572x).

Due to the way the extension header was wired on the development boards,
the touch sensor on the touchscreen modules will connect to different
SoC pins when connected. For this the touch sensor is modeled as an
additional overlay that is specific to the development board for which it
is connected.

Basically the LCD overlay can be swapped, but the touchscreen overlay
that attaches to the LCD must be used with the corresponding base DT
and not to the LCD.

AM571x -\ /- osd101t2045.dtbo -\ /- am571x-idk-touchscreen.dtbo
         X                      X
AM572x -/ \- osd101t2587.dtbo -/ \- am572x-idk-touchscreen.dtbo

Signed-off-by: Andrew Davis <afd@ti.com>
---
 arch/arm/boot/dts/Makefile                    |  4 ++
 arch/arm/boot/dts/am571x-idk-touchscreen.dtso | 32 +++++++++
 arch/arm/boot/dts/am572x-idk-touchscreen.dtso | 32 +++++++++
 .../boot/dts/am57xx-idk-lcd-osd101t2045.dtso  | 63 ++++++++++++++++++
 .../boot/dts/am57xx-idk-lcd-osd101t2587.dtso  | 66 +++++++++++++++++++
 5 files changed, 197 insertions(+)
 create mode 100644 arch/arm/boot/dts/am571x-idk-touchscreen.dtso
 create mode 100644 arch/arm/boot/dts/am572x-idk-touchscreen.dtso
 create mode 100644 arch/arm/boot/dts/am57xx-idk-lcd-osd101t2045.dtso
 create mode 100644 arch/arm/boot/dts/am57xx-idk-lcd-osd101t2587.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index ecc3b00bc2e2..e3e8b3eb34b0 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1000,8 +1000,12 @@ dtb-$(CONFIG_SOC_DRA7XX) += \
 	am57xx-cl-som-am57x.dtb \
 	am57xx-sbc-am57x.dtb \
 	am572x-idk.dtb \
+	am572x-idk-touchscreen.dtbo \
 	am571x-idk.dtb \
+	am571x-idk-touchscreen.dtbo \
 	am574x-idk.dtb \
+	am57xx-idk-lcd-osd101t2045.dtbo \
+	am57xx-idk-lcd-osd101t2587.dtbo \
 	dra7-evm.dtb \
 	dra72-evm.dtb \
 	dra72-evm-revc.dtb \
diff --git a/arch/arm/boot/dts/am571x-idk-touchscreen.dtso b/arch/arm/boot/dts/am571x-idk-touchscreen.dtso
new file mode 100644
index 000000000000..c051ee6c1130
--- /dev/null
+++ b/arch/arm/boot/dts/am571x-idk-touchscreen.dtso
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019-2022 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+&i2c1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	touchscreen: edt-ft5506@38 {
+		compatible = "edt,edt-ft5506", "edt,edt-ft5x06";
+
+		reg = <0x38>;
+
+		interrupt-parent = <&gpio5>;
+		interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
+
+		/* GPIO line is inverted before going to touch panel */
+		reset-gpios = <&gpio6 15 GPIO_ACTIVE_LOW>;
+
+		touchscreen-size-x = <1920>;
+		touchscreen-size-y = <1200>;
+
+		wakeup-source;
+	};
+};
diff --git a/arch/arm/boot/dts/am572x-idk-touchscreen.dtso b/arch/arm/boot/dts/am572x-idk-touchscreen.dtso
new file mode 100644
index 000000000000..573e932b1239
--- /dev/null
+++ b/arch/arm/boot/dts/am572x-idk-touchscreen.dtso
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019-2022 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+&i2c1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	touchscreen: edt-ft5506@38 {
+		compatible = "edt,edt-ft5506", "edt,edt-ft5x06";
+
+		reg = <0x38>;
+
+		interrupt-parent = <&gpio3>;
+		interrupts = <14 IRQ_TYPE_EDGE_FALLING>;
+
+		/* GPIO line is inverted before going to touch panel */
+		reset-gpios = <&gpio6 15 GPIO_ACTIVE_LOW>;
+
+		touchscreen-size-x = <1920>;
+		touchscreen-size-y = <1200>;
+
+		wakeup-source;
+	};
+};
diff --git a/arch/arm/boot/dts/am57xx-idk-lcd-osd101t2045.dtso b/arch/arm/boot/dts/am57xx-idk-lcd-osd101t2045.dtso
new file mode 100644
index 000000000000..25d74e9f3c9e
--- /dev/null
+++ b/arch/arm/boot/dts/am57xx-idk-lcd-osd101t2045.dtso
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019-2022 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+&{/} {
+	aliases {
+		display0 = "/display";
+		display1 = "/connector";
+	};
+
+	lcd_bl: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&ecap0 0 50000 1>;
+		brightness-levels = <0 51 53 56 62 75 101 152 255>;
+		default-brightness-level = <8>;
+	};
+};
+
+&dsi_bridge {
+	status = "okay";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	lcd: display {
+		compatible = "osddisplays,osd101t2045-53ts";
+		reg = <0>;
+
+		label = "lcd";
+
+		backlight = <&lcd_bl>;
+
+		port {
+			lcd_in: endpoint {
+				remote-endpoint = <&dsi_out>;
+			};
+		};
+	};
+};
+
+&dsi_bridge_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@1 {
+		reg = <1>;
+		dsi_out: endpoint {
+			remote-endpoint = <&lcd_in>;
+		};
+	};
+};
+
+&epwmss0 {
+	status = "okay";
+};
+
+&ecap0 {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/am57xx-idk-lcd-osd101t2587.dtso b/arch/arm/boot/dts/am57xx-idk-lcd-osd101t2587.dtso
new file mode 100644
index 000000000000..8cea7ba32487
--- /dev/null
+++ b/arch/arm/boot/dts/am57xx-idk-lcd-osd101t2587.dtso
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019-2022 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+&{/} {
+	aliases {
+		display0 = "/display";
+		display1 = "/connector";
+	};
+
+	lcd_bl: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&ecap0 0 50000 1>;
+		brightness-levels = <0 51 53 56 62 75 101 152 255>;
+		default-brightness-level = <8>;
+	};
+};
+
+&dsi_bridge {
+	status = "okay";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	lcd: display {
+		compatible = "osddisplays,osd101t2587-53ts";
+		reg = <0>;
+
+		label = "lcd";
+
+		backlight = <&lcd_bl>;
+
+		port {
+			lcd_in: endpoint {
+				remote-endpoint = <&dsi_out>;
+			};
+		};
+	};
+};
+
+&dsi_bridge_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@1 {
+		reg = <1>;
+		dsi_out: endpoint {
+			remote-endpoint = <&lcd_in>;
+		};
+	};
+};
+
+&epwmss0 {
+	status = "okay";
+};
+
+&ecap0 {
+	status = "okay";
+};
-- 
2.38.1