Create a separate bus for dla98063 PMIC and da9210 regulator related I2C slaves.
Based on similar work for HDMI by Wolfram Sang. Cc: Wolfram Sang <[email protected]> Signed-off-by: Simon Horman <[email protected]> --- v3 * Add a small commend documenting that IIC3/I2C3 may be switched and that a GPIO fallback not provided. v2 * No change --- arch/arm/boot/dts/r8a7790-lager.dts | 84 +++++++++++++++++++++++-------------- 1 file changed, 53 insertions(+), 31 deletions(-) diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts index 862d766b932b..626b55369871 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 { @@ -374,6 +375,46 @@ }; }; }; + + /* + * 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 { @@ -516,6 +557,11 @@ function = "iic2"; }; + i2c3_pins: i2c3 { + groups = "i2c3"; + function = "i2c3"; + }; + iic3_pins: iic3 { groups = "iic3"; function = "iic3"; @@ -726,38 +772,14 @@ 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 { -- 2.1.4
