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ARM: dts: lager: use demuxer for IIC3/I2C3

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Create a separate bus for da9063 PMIC and da9210 regulator
related I2C slaves.

Based on similar work for HDMI by Wolfram Sang.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
[wsa: rebased, corrected chip name in commit msg, updated aliases]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
This commit is contained in:
Wolfram Sang 2018-02-06 23:29:51 +01:00 committed by Simon Horman
parent 4e65e1b672
commit e6081b21a1
1 changed files with 53 additions and 31 deletions
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84
arch/arm/boot/dts/r8a7790-lager.dts
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@ -55,6 +55,7 @@
i2c10 = &i2cexio0;
i2c11 = &i2cexio1;
i2c12 = &i2chdmi;
i2c13 = &i2cpwr;
};
chosen {
@ -418,6 +419,46 @@
};
};
};
/*
* IIC3 and I2C3 may be switched using pinmux.
* IIC3/I2C3 does not appear to support fallback to GPIO.
*/
i2cpwr: i2c-13 {
compatible = "i2c-demux-pinctrl";
i2c-parent = <&iic3>, <&i2c3>;
i2c-bus-name = "i2c-pwr";
#address-cells = <1>;
#size-cells = <0>;
pmic@58 {
compatible = "dlg,da9063";
reg = <0x58>;
interrupt-parent = <&irqc0>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;
rtc {
compatible = "dlg,da9063-rtc";
};
wdt {
compatible = "dlg,da9063-watchdog";
};
};
vdd_dvfs: regulator@68 {
compatible = "dlg,da9210";
reg = <0x68>;
interrupt-parent = <&irqc0>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-boot-on;
regulator-always-on;
};
};
};
&du {
@ -557,6 +598,11 @@
function = "iic2";
};
i2c3_pins: i2c3 {
groups = "i2c3";
function = "i2c3";
};
iic3_pins: iic3 {
groups = "iic3";
function = "iic3";
@ -772,38 +818,14 @@
clock-frequency = <100000>;
};
&iic3 {
pinctrl-names = "default";
&i2c3 {
pinctrl-0 = <&i2c3_pins>;
pinctrl-names = "i2c-pwr";
};
&iic3 {
pinctrl-0 = <&iic3_pins>;
status = "okay";
pmic@58 {
compatible = "dlg,da9063";
reg = <0x58>;
interrupt-parent = <&irqc0>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;
rtc {
compatible = "dlg,da9063-rtc";
};
wdt {
compatible = "dlg,da9063-watchdog";
};
};
vdd_dvfs: regulator@68 {
compatible = "dlg,da9210";
reg = <0x68>;
interrupt-parent = <&irqc0>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-boot-on;
regulator-always-on;
};
pinctrl-names = "i2c-pwr";
};
&pci0 {