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| author | Simon Horman <horms+renesas@verge.net.au> | 2016-11-06 23:20:19 +0300 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2016-11-23 22:52:21 +0300 |
| commit | 1e26fcf31c5c70557689184185913881e4557bc0 (patch) | |
| tree | 025c129d2e82a0b900654bd2465c793078955fdc /arch/arm/boot/dts/r8a7790-lager.dts | |
| parent | 24b2d930a50662c11918fd0c22931f1448488da4 (diff) | |
| download | linux-1e26fcf31c5c70557689184185913881e4557bc0.tar.xz | |
ARM: dts: lager: rename and reindex i2cexio
The rename from i2cexio to i2cexio0 is in preparation for adding
i2cexio1 which will use the demuxer for IIC1/I2C1.
The reindexing from i2c8 to i2c10 is to allow space for grouping of
additional GPIO buses to be 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@verge.net.au>
[wsa: rebased, fixed alias and removed typo in commit message]
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 | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts index 434268262d88..5645444cd21a 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>; }; @@ -596,12 +598,12 @@ &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 { |