[PATCH v2 1/8] dt-bindings: HID: i2c-hid: elan: Introduce Elan eKTH8D18

[Chen-Yu Tsai]

Hi Dmitry,

On Tue, Apr 29, 2025 at 3:34 AM Doug Anderson <dianders at chromium.org> wrote:
>
> Hi,
>
> On Mon, Apr 21, 2025 at 3:13 AM Chen-Yu Tsai <wenst at chromium.org> wrote:
> >
> > The Elan eKTH8D18 touchscreen controller is an I2C HID device with a
> > longer boot-up time. Power sequence timing wise it is compatible with
> > the eKTH6A12NAY, with a power-on delay of at least 5ms, 20ms
> > out-of-reset for I2C ack response, and 150ms out-of-reset for I2C HID
> > enumeration, both shorter than what the eKTH6A12NAY requires.
> > Enumeration and subsequent operation follows the I2C HID standard.
> >
> > Add a compatible string for it with the ekth6a12nay one as a fallback.
> > No enum was used as it is rare to actually add new entries. These
> > chips are commonly completely backward compatible, and unless the
> > power sequencing delays change, there is no real effort being made to
> > keep track of new parts, which come out constantly.
> >
> > Also drop the constraints on the I2C address since it's not really
> > part of the binding.
> >
> > Signed-off-by: Chen-Yu Tsai <wenst at chromium.org>
> > ---
> > Changes since v1:
> > - Reworded commit message
> > - Dropped the enum for the new compatible string entry
> > - Dropped constraint on I2C address completely
> > ---
> >  .../devicetree/bindings/input/elan,ekth6915.yaml     | 12 +++++++-----
> >  1 file changed, 7 insertions(+), 5 deletions(-)
>
> Reviewed-by: Douglas Anderson <dianders at chromium.org>

Can we get this merged for v6.17? Or could you give an Ack so that
it can go through the soc tree?


Thanks
ChenYu