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| author |   Wolfram Sang <wsa+renesas@sang-engineering.com> | 2018-02-06 23:29:51 +0100 |
|---|---|---|
| committer |   Simon Horman <horms+renesas@verge.net.au> | 2018-02-12 13:50:58 +0100 |
| commit | e6081b21a19156c982f757cb1b6753cfb7e93ebc (patch) | |
| tree | c0e190ac393cee6b1e9e14d9f0d375d4b14f58a9 /arch/arm/boot/dts/r8a7790-lager.dts | |
| parent | ARM: dts: lager: use demuxer for IIC2/I2C2 (diff) | |
| download | linux-dev-e6081b21a19156c982f757cb1b6753cfb7e93ebc.tar.xz linux-dev-e6081b21a19156c982f757cb1b6753cfb7e93ebc.zip | |
ARM: dts: lager: use demuxer for IIC3/I2C3
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>
Diffstat (limited to 'arch/arm/boot/dts/r8a7790-lager.dts')
| -rw-r--r-- | arch/arm/boot/dts/r8a7790-lager.dts | 84 |
1 files changed, 53 insertions, 31 deletions
diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts index 9f511d4fac10..20c1b4f224b8 100644 --- a/arch/arm/boot/dts/r8a7790-lager.dts +++ b/arch/arm/boot/dts/r8a7790-lager.dts @@ -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"; - 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>; +&i2c3 { + pinctrl-0 = <&i2c3_pins>; + pinctrl-names = "i2c-pwr"; +}; - regulator-min-microvolt = <1000000>; - regulator-max-microvolt = <1000000>; - regulator-boot-on; - regulator-always-on; - }; +&iic3 { + pinctrl-0 = <&iic3_pins>; + pinctrl-names = "i2c-pwr"; }; &pci0 { |