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ARM: dts: koelsch: use demuxer for I2C2

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Create a separate bus for HDMI related I2C2 and provide fallback to GPIO.

Based on work for the r8a7790/lager by Wolfram Sang.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
[wsa: rebased, fixed aliases, switched to named GPIOs, sorted by SCL
pins]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
This commit is contained in:
Wolfram Sang 2018-02-06 23:29:52 +01:00 committed by Simon Horman
parent e6081b21a1
commit 168a709994
1 changed files with 111 additions and 89 deletions
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200
arch/arm/boot/dts/r8a7791-koelsch.dts
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@ -51,7 +51,9 @@ aliases {
serial0 = &scif0;
serial1 = &scif1;
i2c9 = &gpioi2c1;
i2c10 = &gpioi2c2;
i2c12 = &i2cexio1;
i2c13 = &i2chdmi;
};
chosen {
@ -312,8 +314,18 @@ gpioi2c1: i2c-9 {
#size-cells = <0>;
compatible = "i2c-gpio";
status = "disabled";
sda-gpios = <&gpio7 16 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
scl-gpios = <&gpio7 15 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
sda-gpios = <&gpio7 16 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
i2c-gpio,delay-us = <5>;
};
gpioi2c2: i2c-10 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "i2c-gpio";
status = "disabled";
scl-gpios = <&gpio2 6 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
sda-gpios = <&gpio2 7 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
i2c-gpio,delay-us = <5>;
};
@ -328,6 +340,103 @@ i2cexio1: i2c-12 {
#address-cells = <1>;
#size-cells = <0>;
};
/*
* A fallback to GPIO is provided for I2C2.
*/
i2chdmi: i2c-13 {
compatible = "i2c-demux-pinctrl";
i2c-parent = <&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 = <&vin1ep>;
};
};
};
hdmi@39 {
compatible = "adi,adv7511w";
reg = <0x39>;
interrupt-parent = <&gpio3>;
interrupts = <29 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_rgb>;
};
};
port@1 {
reg = <1>;
adv7511_out: endpoint {
remote-endpoint = <&hdmi_con_out>;
};
};
};
};
hdmi-in@4c {
compatible = "adi,adv7612";
reg = <0x4c>;
interrupt-parent = <&gpio4>;
interrupts = <2 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>;
};
};
};
};
eeprom@50 {
compatible = "renesas,r1ex24002", "atmel,24c02";
reg = <0x50>;
pagesize = <16>;
};
};
};
&du {
@ -621,96 +730,9 @@ &i2c1 {
&i2c2 {
pinctrl-0 = <&i2c2_pins>;
pinctrl-names = "default";
pinctrl-names = "i2c-hdmi";
status = "okay";
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 = <&vin1ep>;
};
};
};
hdmi@39 {
compatible = "adi,adv7511w";
reg = <0x39>;
interrupt-parent = <&gpio3>;
interrupts = <29 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_rgb>;
};
};
port@1 {
reg = <1>;
adv7511_out: endpoint {
remote-endpoint = <&hdmi_con_out>;
};
};
};
};
hdmi-in@4c {
compatible = "adi,adv7612";
reg = <0x4c>;
interrupt-parent = <&gpio4>;
interrupts = <2 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>;
};
};
};
};
eeprom@50 {
compatible = "renesas,r1ex24002", "atmel,24c02";
reg = <0x50>;
pagesize = <16>;
};
};
&i2c6 {