2023-07-18 21:05:41

by Tim Harvey

Subject: [PATCH v2] arm64: dts: imx8mm: add imx8mm-venice-gw72xx-0x-rpidsi overlay for display

Add support for the following Raspberry Pi displays:
- DFROBOT DRF0678 7in 800x480 TFT DSI capacitive touch
- DFROBOT DRF0550 5in 800x480 TFT DSI capacitive touch

Both have the following hardware:
- FocalTech FT5406 10pt touch controller (with no interrupt)
- Powertip PH800480T013-IDF02 compatible panel
- Toshiba TC358762 compatible DSI to DBI bridge
- ATTINY based regulator used for backlight controller and panel enable

Support is added via a device-tree overlay. The touch controller is not
yet supported as polling mode is needed.

Signed-off-by: Tim Harvey <[email protected]>
---
v2:
- add newline between properties and child nodes
---
arch/arm64/boot/dts/freescale/Makefile | 2 +
.../imx8mm-venice-gw72xx-0x-rpidsi.dtso | 90 +++++++++++++++++++
2 files changed, 92 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-venice-gw72xx-0x-rpidsi.dtso

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index df572cfd0931..454b07ed09fc 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -147,6 +147,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8ulp-evk.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-evk.dtb

imx8mm-venice-gw72xx-0x-imx219-dtbs := imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-imx219.dtbo
+imx8mm-venice-gw72xx-0x-rpidsi-dtbs := imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rpidsi.dtbo
imx8mm-venice-gw72xx-0x-rs232-rts-dtbs := imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rs232-rts.dtbo
imx8mm-venice-gw72xx-0x-rs422-dtbs := imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rs422.dtbo
imx8mm-venice-gw72xx-0x-rs485-dtbs := imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rs485.dtbo
@@ -157,6 +158,7 @@ imx8mm-venice-gw73xx-0x-rs422-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice-
imx8mm-venice-gw73xx-0x-rs485-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice-gw73xx-0x-rs485.dtbo

dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-imx219.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-rpidsi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-rs232-rts.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-rs422.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-rs485.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw72xx-0x-rpidsi.dtso b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw72xx-0x-rpidsi.dtso
new file mode 100644
index 000000000000..e0768d408c3b
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw72xx-0x-rpidsi.dtso
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2023 Gateworks Corporation
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+#include "imx8mm-pinfunc.h"
+
+/dts-v1/;
+/plugin/;
+
+&{/} {
+ compatible = "gw,imx8mm-gw73xx-0x", "fsl,imx8mm";
+
+ panel {
+ compatible = "powertip,ph800480t013-idf02";
+ power-supply = <&attiny>;
+ backlight = <&attiny>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&bridge_out>;
+ };
+ };
+ };
+};
+
+&i2c3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ attiny: regulator@45 {
+ compatible = "raspberrypi,7inch-touchscreen-panel-regulator";
+ reg = <0x45>;
+ };
+};
+
+&lcdif {
+ status = "okay";
+};
+
+&mipi_dsi {
+ samsung,burst-clock-frequency = <891000000>;
+ samsung,esc-clock-frequency = <54000000>;
+ samsung,pll-clock-frequency = <27000000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ bridge@0 {
+ compatible = "toshiba,tc358762";
+ reg = <0>;
+ vddc-supply = <&attiny>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ bridge_in: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ bridge_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@1 {
+ reg = <1>;
+
+ dsi_out: endpoint {
+ remote-endpoint = <&bridge_in>;
+ };
+ };
+ };
+};
--
2.25.1

2023-07-19 03:27:57

by Shawn Guo

Subject: Re: [PATCH v2] arm64: dts: imx8mm: add imx8mm-venice-gw72xx-0x-rpidsi overlay for display

On Tue, Jul 18, 2023 at 01:55:38PM -0700, Tim Harvey wrote:
> Add support for the following Raspberry Pi displays:
> - DFROBOT DRF0678 7in 800x480 TFT DSI capacitive touch
> - DFROBOT DRF0550 5in 800x480 TFT DSI capacitive touch
>
> Both have the following hardware:
> - FocalTech FT5406 10pt touch controller (with no interrupt)
> - Powertip PH800480T013-IDF02 compatible panel
> - Toshiba TC358762 compatible DSI to DBI bridge
> - ATTINY based regulator used for backlight controller and panel enable
>
> Support is added via a device-tree overlay. The touch controller is not
> yet supported as polling mode is needed.
>
> Signed-off-by: Tim Harvey <[email protected]>

Applied, thanks!