Re: [PATCH 7/7] arm64: dts: qcom: sc7280: Hook up the touchscreen IO rail on evoker

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Feb 06, 2023 at 06:48:16PM -0800, Douglas Anderson wrote:
> On older revisions of evoker, the touchscreen was either
> non-functional or needed special hardware magic to get it talking
> properly. It's been decided that the proper way going forward is to
> use L3C to power some buffers on the QCard and then configure the
> touchscreens for 1.8V. Let's do that.
> 
> Note that this is safe to do even on older revs even if it might not
> make the touchscreen work there (because they didn't have a properly
> stuffed QCard). As talked about in the patch ("arm64: dts: qcom:
> sc7280: On QCard, regulator L3C should be 1.8V") the L3C regulator
> didn't go anywhere at all on older revs.
> 
> This patch relies on the patch ("HID: i2c-hid: goodix: Add
> mainboard-vddio-supply") in order to function properly. Without that
> patch this one won't do any harm but it won't actually accomplish its
> goal.
> 
> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>

Reviewed-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux