| Message ID | 20170210020357.10679-1-briannorris@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, Feb 09, 2017 at 06:03:56PM -0800, Brian Norris wrote: > From: Caesar Wang <wxt@rock-chips.com> > > Document a "vdd-supply" and an initialization delay. Can be used for > powering on/off a HID. > > Signed-off-by: Caesar Wang <wxt@rock-chips.com> > Cc: Rob Herring <robh+dt@kernel.org> > Cc: Jiri Kosina <jikos@kernel.org> > Cc: linux-input@vger.kernel.org > Signed-off-by: Brian Norris <briannorris@chromium.org> > --- > Sorry for the delay on resending this. I *think* I've addressed all the > concerns from last time though? > > v2: > * add compatible property for wacom, per Rob's request > * name the regulator property specifically (VDD) > > v3: > * remove wacom property, per Benjamin's request > * add delay property > > v4: no change > > v5: > * change name to "post-power-on-delay-ms" > * reword to describe how the power sequencing properties require a > specific 'compatible' property > --- > Documentation/devicetree/bindings/input/hid-over-i2c.txt | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) Acked-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Thu, 9 Feb 2017, Brian Norris wrote: > From: Caesar Wang <wxt@rock-chips.com> > > Document a "vdd-supply" and an initialization delay. Can be used for > powering on/off a HID. > > Signed-off-by: Caesar Wang <wxt@rock-chips.com> > Cc: Rob Herring <robh+dt@kernel.org> > Cc: Jiri Kosina <jikos@kernel.org> > Cc: linux-input@vger.kernel.org > Signed-off-by: Brian Norris <briannorris@chromium.org> > --- > Sorry for the delay on resending this. I *think* I've addressed all the > concerns from last time though? Both patches applied to for-4.12/i2c-hid. Thanks,
diff --git a/Documentation/devicetree/bindings/input/hid-over-i2c.txt b/Documentation/devicetree/bindings/input/hid-over-i2c.txt index 488edcb264c4..28e8bd8b7d64 100644 --- a/Documentation/devicetree/bindings/input/hid-over-i2c.txt +++ b/Documentation/devicetree/bindings/input/hid-over-i2c.txt @@ -17,6 +17,22 @@ Required properties: - interrupt-parent: the phandle for the interrupt controller - interrupts: interrupt line +Additional optional properties: + +Some devices may support additional optional properties to help with, e.g., +power sequencing. The following properties can be supported by one or more +device-specific compatible properties, which should be used in addition to the +"hid-over-i2c" string. + +- compatible: + * "wacom,w9013" (Wacom W9013 digitizer). Supports: + - vdd-supply + - post-power-on-delay-ms + +- vdd-supply: phandle of the regulator that provides the supply voltage. +- post-power-on-delay-ms: time required by the device after enabling its regulators + before it is ready for communication. Must be used with 'vdd-supply'. + Example: i2c-hid-dev@2c {