AM43x EPOS board has both LCD and HDMI outputs. The active display is selected with a GPIO, which affects video and audio signal routing, and LCD backlight. Managing the gpio dynamically has proven rather difficult, so the approach taken here is just to have two separate .dts files for LCD/HDMI use cases. The HDMI dts file includes the base file, which has LCD support, and overrides and adds the necessary items. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx> Cc: Tony Lindgren <tony@xxxxxxxxxxx> --- arch/arm/boot/dts/Makefile | 3 +- arch/arm/boot/dts/am43x-epos-evm-hdmi.dts | 83 +++++++++++++++++++++++++++++++ 2 files changed, 85 insertions(+), 1 deletion(-) create mode 100644 arch/arm/boot/dts/am43x-epos-evm-hdmi.dts diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 5986ff63b901..5a1fba6d10b5 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -301,7 +301,8 @@ dtb-$(CONFIG_ARCH_OMAP4) += omap4-duovero-parlor.dtb \ omap4-var-dvk-om44.dtb \ omap4-var-stk-om44.dtb dtb-$(CONFIG_SOC_AM43XX) += am43x-epos-evm.dtb \ - am437x-gp-evm.dtb + am437x-gp-evm.dtb \ + am43x-epos-evm-hdmi.dtb dtb-$(CONFIG_SOC_OMAP5) += omap5-cm-t54.dtb \ omap5-sbc-t54.dtb \ omap5-uevm.dtb diff --git a/arch/arm/boot/dts/am43x-epos-evm-hdmi.dts b/arch/arm/boot/dts/am43x-epos-evm-hdmi.dts new file mode 100644 index 000000000000..9e52b220084d --- /dev/null +++ b/arch/arm/boot/dts/am43x-epos-evm-hdmi.dts @@ -0,0 +1,83 @@ +/* + * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* AM43x EPOS EVM with HDMI output */ + +#include "am43x-epos-evm.dts" + +/ { + aliases { + display0 = &hdmi; + }; + + hdmi: connector { + compatible = "hdmi-connector"; + label = "hdmi"; + + type = "b"; + + port { + hdmi_connector_in: endpoint { + remote-endpoint = <&sii9022_out>; + }; + }; + }; +}; + +&am43xx_pinmux { + sii9022_pins: sii9022_pins { + pinctrl-single,pins = < + 0x48 (PIN_INPUT | MUX_MODE7) /* gpmc_a2.gpio1_18 */ + >; + }; +}; + +&i2c2 { + sii9022@3b { + compatible = "sil,sii9022"; + reg = <0x3b>; + + pinctrl-names = "default"; + pinctrl-0 = <&sii9022_pins>; + + reset-gpio = <&gpio2 1 GPIO_ACTIVE_LOW>;/* 65'SelLCDorHDMI' Gpio, LOW to select HDMI */ + + interrupt-parent = <&gpio1>; + interrupts = <18 IRQ_TYPE_LEVEL_LOW>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + sii9022_in: endpoint { + remote-endpoint = <&dpi_out>; + }; + }; + + port@1 { + reg = <1>; + + sii9022_out: endpoint { + remote-endpoint = <&hdmi_connector_in>; + }; + }; + }; + }; +}; + +&dss { + port { + dpi_out: endpoint@0 { + remote-endpoint = <&sii9022_in>; + data-lines = <24>; + }; + }; +}; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
