arm64: dts: renesas: Add HiHope RZ/G2M board with idk-1110wr display

The HiHope RZ/G2M is advertised as compatible with panel idk-1110wr
from Advantech, however the panel isn't sold alongside the board.
A new dts, adding everything that's required to get the panel to
work with HiHope RZ/G2M, is the most convenient way to support the
HiHope RZ/G2M when it's connected to the idk-1110wr.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/1583957020-16359-3-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index a4c77d0..a7ec7a7 100644 (file)
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_R8A774A1) += r8a774a1-hihope-rzg2m.dtb
 dtb-$(CONFIG_ARCH_R8A774A1) += r8a774a1-hihope-rzg2m-ex.dtb
+dtb-$(CONFIG_ARCH_R8A774A1) += r8a774a1-hihope-rzg2m-ex-idk-1110wr.dtb
 dtb-$(CONFIG_ARCH_R8A774B1) += r8a774b1-hihope-rzg2n.dtb
 dtb-$(CONFIG_ARCH_R8A774B1) += r8a774b1-hihope-rzg2n-ex.dtb
 dtb-$(CONFIG_ARCH_R8A774C0) += r8a774c0-cat874.dtb r8a774c0-ek874.dtb \

diff --git a/arch/arm64/boot/dts/renesas/r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts b/arch/arm64/boot/dts/renesas/r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts
new file mode 100644 (file)
index 0000000..2ab5edd
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the HiHope RZ/G2M sub board connected to an
+ * Advantech IDK-1110WR 10.1" LVDS panel
+ *
+ * Copyright (C) 2020 Renesas Electronics Corp.
+ */
+
+#include "r8a774a1-hihope-rzg2m-ex.dts"
+#include "rzg2-advantech-idk-1110wr-panel.dtsi"
+
+/ {
+       backlight {
+               compatible = "pwm-backlight";
+               pwms = <&pwm0 0 50000>;
+
+               brightness-levels = <0 2 8 16 32 64 128 255>;
+               default-brightness-level = <6>;
+       };
+
+};
+
+&gpio1 {
+       /*
+        * When GP1_20 is LOW LVDS0 is connected to the LVDS connector
+        * When GP1_20 is HIGH LVDS0 is connected to the LT8918L
+        */
+       lvds-connector-en-gpio {
+               gpio-hog;
+               gpios = <20 GPIO_ACTIVE_HIGH>;
+               output-low;
+               line-name = "lvds-connector-en-gpio";
+       };
+};
+
+&lvds0 {
+       status = "okay";
+};
+
+&pfc {
+       pwm0_pins: pwm0 {
+               groups = "pwm0";
+               function = "pwm0";
+       };
+};
+
+&pwm0 {
+       pinctrl-0 = <&pwm0_pins>;
+       pinctrl-names = "default";
+
+       status = "okay";
+};