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+rene...@verge.net.au>
[wsa: rebased, corrected chip name in commit msg, updated aliases]
Signed-off-by: Wolfram Sang <wsa+rene...@sang-engineering.com>
---
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 e4050dae7e8e33..6f6e41c9fc4f6c 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 {
@@ -410,6 +411,46 @@
};
};
};
+
+ /*
+ * 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 {
@@ -549,6 +590,11 @@
function = "iic2";
};
+ i2c3_pins: i2c3 {
+ groups = "i2c3";
+ function = "i2c3";
+ };
+
iic3_pins: iic3 {
groups = "iic3";
function = "iic3";
@@ -764,38 +810,14 @@
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 {
--
2.11.0
