From ae56c940f188c1dde440c8456229adaad733908e Mon Sep 17 00:00:00 2001 From: Fabrizio Castro Date: Tue, 17 Dec 2019 13:46:01 +0000 Subject: [PATCH] arm64: dts: renesas: Add EK874 board with idk-2121wr display support The EK874 is advertised as compatible with panel IDK-2121WR from Advantech, however the panel isn't sold alongside the board. A new dts, adding everything that's required to get the panel to to work with the EK874, is the most convenient way to support the EK874 when it's connected to the IDK-2121WR. Signed-off-by: Fabrizio Castro Acked-by: Laurent Pinchart Link: https://lore.kernel.org/r/1576590361-28244-7-git-send-email-fabrizio.castro@bp.renesas.com Signed-off-by: Geert Uytterhoeven --- arch/arm64/boot/dts/renesas/Makefile | 3 +- .../boot/dts/renesas/r8a774c0-ek874-idk-2121wr.dts | 116 +++++++++++++++++++++ 2 files changed, 118 insertions(+), 1 deletion(-) create mode 100644 arch/arm64/boot/dts/renesas/r8a774c0-ek874-idk-2121wr.dts diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile index d4cc332..ab2c799 100644 --- a/arch/arm64/boot/dts/renesas/Makefile +++ b/arch/arm64/boot/dts/renesas/Makefile @@ -3,7 +3,8 @@ dtb-$(CONFIG_ARCH_R8A774A1) += r8a774a1-hihope-rzg2m.dtb dtb-$(CONFIG_ARCH_R8A774A1) += r8a774a1-hihope-rzg2m-ex.dtb dtb-$(CONFIG_ARCH_R8A774B1) += r8a774b1-hihope-rzg2n.dtb dtb-$(CONFIG_ARCH_R8A774B1) += r8a774b1-hihope-rzg2n-ex.dtb -dtb-$(CONFIG_ARCH_R8A774C0) += r8a774c0-cat874.dtb r8a774c0-ek874.dtb +dtb-$(CONFIG_ARCH_R8A774C0) += r8a774c0-cat874.dtb r8a774c0-ek874.dtb \ + r8a774c0-ek874-idk-2121wr.dtb dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-salvator-x.dtb r8a7795-h3ulcb.dtb dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-h3ulcb-kf.dtb dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-salvator-xs.dtb diff --git a/arch/arm64/boot/dts/renesas/r8a774c0-ek874-idk-2121wr.dts b/arch/arm64/boot/dts/renesas/r8a774c0-ek874-idk-2121wr.dts new file mode 100644 index 0000000..a7b27d0 --- /dev/null +++ b/arch/arm64/boot/dts/renesas/r8a774c0-ek874-idk-2121wr.dts @@ -0,0 +1,116 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Device Tree Source for the Silicon Linux RZ/G2E evaluation kit (EK874), + * connected to an Advantech IDK-2121WR 21.5" LVDS panel + * + * Copyright (C) 2019 Renesas Electronics Corp. + */ + +#include "r8a774c0-ek874.dts" + +/ { + backlight: backlight { + compatible = "pwm-backlight"; + pwms = <&pwm5 0 50000>; + + brightness-levels = <0 4 8 16 32 64 128 255>; + default-brightness-level = <6>; + + power-supply = <®_12p0v>; + enable-gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>; + }; + + panel-lvds { + compatible = "advantech,idk-2121wr", "panel-lvds"; + + width-mm = <476>; + height-mm = <268>; + + data-mapping = "vesa-24"; + + panel-timing { + clock-frequency = <148500000>; + hactive = <1920>; + vactive = <1080>; + hsync-len = <44>; + hfront-porch = <88>; + hback-porch = <148>; + vfront-porch = <4>; + vback-porch = <36>; + vsync-len = <5>; + }; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dual-lvds-odd-pixels; + panel_in0: endpoint { + remote-endpoint = <&lvds0_out>; + }; + }; + + port@1 { + reg = <1>; + dual-lvds-even-pixels; + panel_in1: endpoint { + remote-endpoint = <&lvds1_out>; + }; + }; + }; + }; +}; + +&gpio0 { + /* + * When GP0_17 is low LVDS[01] are connected to the LVDS connector + * When GP0_17 is high LVDS[01] are connected to the LT8918L + */ + lvds-connector-en-gpio{ + gpio-hog; + gpios = <17 GPIO_ACTIVE_HIGH>; + output-low; + line-name = "lvds-connector-en-gpio"; + }; +}; + +&lvds0 { + ports { + port@1 { + lvds0_out: endpoint { + remote-endpoint = <&panel_in0>; + }; + }; + }; +}; + +&lvds1 { + status = "okay"; + + clocks = <&cpg CPG_MOD 727>, <&x13_clk>, <&extal_clk>; + clock-names = "fck", "dclkin.0", "extal"; + + ports { + port@1 { + lvds1_out: endpoint { + remote-endpoint = <&panel_in1>; + }; + }; + }; +}; + +&pfc { + pwm5_pins: pwm5 { + groups = "pwm5_a"; + function = "pwm5"; + }; +}; + +&pwm5 { + pinctrl-0 = <&pwm5_pins>; + pinctrl-names = "default"; + + status = "okay"; +}; -- 2.7.4