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 IIC1/I2C1. Signed-off-by: Simon Horman <[email protected]> --- v2: * Reindex i2c * Add note that GPIO fallback is not provided by hardware --- 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 52b56fcaddf2..6b25d9e7d21b 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 { @@ -262,11 +262,13 @@ * 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>; }; @@ -580,12 +582,12 @@ &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 { -- 2.1.4
