From 4e65e1b6721aafca073a308ae7f32e1cdddfdcd8 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Tue, 6 Feb 2018 23:29:50 +0100 Subject: ARM: dts: lager: use demuxer for IIC2/I2C2 Create a separate bus for HDMI related I2C slaves. Based on work by Wolfram Sang. Signed-off-by: Simon Horman [wsa: rebased, removed typo in comment, fixed aliases, switched to named GPIOS, sort SCL pins first] Signed-off-by: Wolfram Sang --- arch/arm/boot/dts/r8a7790-lager.dts | 213 +++++++++++++++++++++--------------- 1 file changed, 124 insertions(+), 89 deletions(-) (limited to 'arch/arm/boot/dts/r8a7790-lager.dts') diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts index 7892b113ecaa..9f511d4fac10 100644 --- a/arch/arm/boot/dts/r8a7790-lager.dts +++ b/arch/arm/boot/dts/r8a7790-lager.dts @@ -51,8 +51,10 @@ serial0 = &scif0; serial1 = &scifa1; i2c8 = &gpioi2c1; + i2c9 = &gpioi2c2; i2c10 = &i2cexio0; i2c11 = &i2cexio1; + i2c12 = &i2chdmi; }; chosen { @@ -272,8 +274,18 @@ #size-cells = <0>; compatible = "i2c-gpio"; status = "disabled"; - sda-gpios = <&gpio1 17 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; scl-gpios = <&gpio1 16 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + sda-gpios = <&gpio1 17 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + i2c-gpio,delay-us = <5>; + }; + + gpioi2c2: i2c-9 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "i2c-gpio"; + status = "disabled"; + scl-gpios = <&gpio5 5 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + sda-gpios = <&gpio5 6 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; i2c-gpio,delay-us = <5>; }; @@ -308,6 +320,104 @@ #address-cells = <1>; #size-cells = <0>; }; + + /* + * IIC2 and I2C2 may be switched using pinmux. + * A fallback to GPIO is also provided. + */ + i2chdmi: i2c-12 { + compatible = "i2c-demux-pinctrl"; + i2c-parent = <&iic2>, <&i2c2>, <&gpioi2c2>; + i2c-bus-name = "i2c-hdmi"; + #address-cells = <1>; + #size-cells = <0>; + + ak4643: codec@12 { + compatible = "asahi-kasei,ak4643"; + #sound-dai-cells = <0>; + reg = <0x12>; + }; + + composite-in@20 { + compatible = "adi,adv7180"; + reg = <0x20>; + remote = <&vin1>; + + port { + adv7180: endpoint { + bus-width = <8>; + remote-endpoint = <&vin1ep0>; + }; + }; + }; + + cec_clock: cec-clock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <12000000>; + }; + + hdmi@39 { + compatible = "adi,adv7511w"; + reg = <0x39>; + interrupt-parent = <&gpio1>; + interrupts = <15 IRQ_TYPE_LEVEL_LOW>; + clocks = <&cec_clock>; + clock-names = "cec"; + + adi,input-depth = <8>; + adi,input-colorspace = "rgb"; + adi,input-clock = "1x"; + adi,input-style = <1>; + adi,input-justification = "evenly"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + adv7511_in: endpoint { + remote-endpoint = <&du_out_lvds0>; + }; + }; + + port@1 { + reg = <1>; + adv7511_out: endpoint { + remote-endpoint = <&hdmi_con_out>; + }; + }; + }; + }; + + hdmi-in@4c { + compatible = "adi,adv7612"; + reg = <0x4c>; + interrupt-parent = <&gpio1>; + interrupts = <20 IRQ_TYPE_LEVEL_LOW>; + default-input = <0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + adv7612_in: endpoint { + remote-endpoint = <&hdmi_con_in>; + }; + }; + + port@2 { + reg = <2>; + adv7612_out: endpoint { + remote-endpoint = <&vin0ep2>; + }; + }; + }; + }; + }; }; &du { @@ -437,6 +547,11 @@ function = "iic1"; }; + i2c2_pins: i2c2 { + groups = "i2c2"; + function = "i2c2"; + }; + iic2_pins: iic2 { groups = "iic2"; function = "iic2"; @@ -643,98 +758,18 @@ pinctrl-names = "i2c-exio1"; }; -&iic2 { - status = "okay"; - pinctrl-0 = <&iic2_pins>; - pinctrl-names = "default"; +&i2c2 { + pinctrl-0 = <&i2c2_pins>; + pinctrl-names = "i2c-hdmi"; clock-frequency = <100000>; +}; - ak4643: codec@12 { - compatible = "asahi-kasei,ak4643"; - #sound-dai-cells = <0>; - reg = <0x12>; - }; - - composite-in@20 { - compatible = "adi,adv7180"; - reg = <0x20>; - remote = <&vin1>; - - port { - adv7180: endpoint { - bus-width = <8>; - remote-endpoint = <&vin1ep0>; - }; - }; - }; - - cec_clock: cec-clock { - compatible = "fixed-clock"; - #clock-cells = <0>; - clock-frequency = <12000000>; - }; - - hdmi@39 { - compatible = "adi,adv7511w"; - reg = <0x39>; - interrupt-parent = <&gpio1>; - interrupts = <15 IRQ_TYPE_LEVEL_LOW>; - clocks = <&cec_clock>; - clock-names = "cec"; - - adi,input-depth = <8>; - adi,input-colorspace = "rgb"; - adi,input-clock = "1x"; - adi,input-style = <1>; - adi,input-justification = "evenly"; - - ports { - #address-cells = <1>; - #size-cells = <0>; - - port@0 { - reg = <0>; - adv7511_in: endpoint { - remote-endpoint = <&du_out_lvds0>; - }; - }; - - port@1 { - reg = <1>; - adv7511_out: endpoint { - remote-endpoint = <&hdmi_con_out>; - }; - }; - }; - }; - - hdmi-in@4c { - compatible = "adi,adv7612"; - reg = <0x4c>; - interrupt-parent = <&gpio1>; - interrupts = <20 IRQ_TYPE_LEVEL_LOW>; - default-input = <0>; - - ports { - #address-cells = <1>; - #size-cells = <0>; - - port@0 { - reg = <0>; - adv7612_in: endpoint { - remote-endpoint = <&hdmi_con_in>; - }; - }; +&iic2 { + pinctrl-0 = <&iic2_pins>; + pinctrl-names = "i2c-hdmi"; - port@2 { - reg = <2>; - adv7612_out: endpoint { - remote-endpoint = <&vin0ep2>; - }; - }; - }; - }; + clock-frequency = <100000>; }; &iic3 { -- cgit v1.2.3-59-g8ed1b