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| author | Dmitry Torokhov <dtor@chromium.org> | 2015-04-17 01:14:55 (GMT) |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-08-07 21:55:38 (GMT) |
| commit | afe10358e47a3ea1f69005cb1be78170d23f8afa (patch) | |
| tree | 19a12ac47685bd1ca2ab85ef8ee3306ee05ea2cb /Documentation | |
| parent | 00159f19a5057cb779146afce1cceede692af346 (diff) | |
| download | linux-afe10358e47a3ea1f69005cb1be78170d23f8afa.tar.xz | |
Input: elants_i2c - wire up regulator support
Elan touchscreen controllers use two power supplies, vcc33 and vccio,
and we need to enable them before trying to access the device. On X86
firmware usually does this, but on ARM it is usually left to the kernel.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Scott Liu <scott.liu@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/input/elants_i2c.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/elants_i2c.txt b/Documentation/devicetree/bindings/input/elants_i2c.txt index a765232..8a71038 100644 --- a/Documentation/devicetree/bindings/input/elants_i2c.txt +++ b/Documentation/devicetree/bindings/input/elants_i2c.txt @@ -13,6 +13,9 @@ Optional properties: - pinctrl-names: should be "default" (see pinctrl binding [1]). - pinctrl-0: a phandle pointing to the pin settings for the device (see pinctrl binding [1]). +- reset-gpios: reset gpio the chip is connected to. +- vcc33-supply: a phandle for the regulator supplying 3.3V power. +- vccio-supply: a phandle for the regulator supplying IO power. [0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt [1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt |