From: Simon Horman <horms+renesas@xxxxxxxxxxxx>
The rename from i2cexio to i2cexio0 is in in preparation for adding
i2cexio1 which will use the dmuxer for IIC1/I2C1.
The reindexing from i2c8 to i2c10 is to allow space for grouping of
additional GPIO buses to added by follow-up patches to support demuxing of
other i2c buses.
Also note that fallback to GPIO is not provided by the hardware for IIC0/I2C0.
Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
[wsa: rebased, fixed alias and removed typo in commit message]
Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm/boot/dts/r8a7790-lager.dts | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts
index e42748a5fe10ac..dafa49f837118e 100644
--- a/arch/arm/boot/dts/r8a7790-lager.dts
+++ b/arch/arm/boot/dts/r8a7790-lager.dts
@@ -50,7 +50,7 @@
aliases {
serial0 = &scif0;
serial1 = &scifa1;
- i2c8 = "i2cexio";
+ i2c10 = &i2cexio0;
};
chosen {
@@ -273,11 +273,13 @@
* bus with IIC3 on pins 110 (SCL) + 112 (SDA), select I2C0 at runtime, and
* instantiate the slave device at runtime according to the documentation.
* You can then communicate with the slave via IIC3.
+ *
+ * IIC0/I2C0 does not appear to support fallback to GPIO.
*/
- i2cexio: i2c-8 {
+ i2cexio0: i2c-10 {
compatible = "i2c-demux-pinctrl";
i2c-parent = <&iic0>, <&i2c0>;
- i2c-bus-name = "i2c-exio";
+ i2c-bus-name = "i2c-exio0";
#address-cells = <1>;
#size-cells = <0>;
};
@@ -597,12 +599,12 @@
&i2c0 {
pinctrl-0 = <&i2c0_pins>;
- pinctrl-names = "i2c-exio";
+ pinctrl-names = "i2c-exio0";
};
&iic0 {
pinctrl-0 = <&iic0_pins>;
- pinctrl-names = "i2c-exio";
+ pinctrl-names = "i2c-exio0";
};
&iic1 {
--
2.9.3
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