| Message ID | 20190527160736.30569-4-leif.middelschulte@klsmartin.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | input: touchscreen: stmpe: ext. features | expand |
On Mon, May 27, 2019 at 06:07:29PM +0200, Leif Middelschulte wrote: > This documents the support for specifying the screen size in milimeter > and its impact on resolution calculation. > > Signed-off-by: Leif Middelschulte <leif.middelschulte@klsmartin.com> > --- > Documentation/devicetree/bindings/input/touchscreen/stmpe.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt b/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt > index 04962e2e1ad0..d20dc5a7d8ad 100644 > --- a/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt > +++ b/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt > @@ -39,6 +39,10 @@ Optional properties: > The given window also affects the value range (limits) set > within the input subsystem which, in turn, affects > the input resolution calculation on both axes. > +- touchscreen-x-mm : horizontal length in mm of the touchscreen. It affects > + the input resolution calculation on the horizontal axis. > +- touchscreen-y-mm : vertical length in mm of the touchscreen. It affects > + the input resolution calculation on the vertical axis. No need to define this again. Just reference the common definition. If you have any additional constraints, then add them. Rob
Am Freitag, den 14.06.2019, 13:55 -0600 schrieb Rob Herring: > On Mon, May 27, 2019 at 06:07:29PM +0200, Leif Middelschulte wrote: > > This documents the support for specifying the screen size in milimeter > > and its impact on resolution calculation. > > > > Signed-off-by: Leif Middelschulte < > > leif.middelschulte@klsmartin.com > > > > > --- > > Documentation/devicetree/bindings/input/touchscreen/stmpe.txt | 4 ++++ > > 1 file changed, 4 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt b/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt > > index 04962e2e1ad0..d20dc5a7d8ad 100644 > > --- a/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt > > +++ b/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt > > @@ -39,6 +39,10 @@ Optional properties: > > The given window also affects the value range (limits) set > > within the input subsystem which, in turn, affects > > the input resolution calculation on both axes. > > +- touchscreen-x-mm : horizontal length in mm of the touchscreen. It affects > > + the input resolution calculation on the horizontal axis. > > +- touchscreen-y-mm : vertical length in mm of the touchscreen. It affects > > + the input resolution calculation on the vertical axis. > > No need to define this again. Just reference the common definition. If > you have any additional constraints, then add them. I assumed it should not be redefined. I merely wanted to document the implication this value has on the automatically configured resolution within `abs_info`. Other drivers might not use it in that way, as the general documentation[0] does not document such a behavior. [0] https://www.kernel.org/doc/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt > Rob
diff --git a/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt b/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt index 04962e2e1ad0..d20dc5a7d8ad 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt @@ -39,6 +39,10 @@ Optional properties: The given window also affects the value range (limits) set within the input subsystem which, in turn, affects the input resolution calculation on both axes. +- touchscreen-x-mm : horizontal length in mm of the touchscreen. It affects + the input resolution calculation on the horizontal axis. +- touchscreen-y-mm : vertical length in mm of the touchscreen. It affects + the input resolution calculation on the vertical axis. Optional properties common with MFD (deprecated):
This documents the support for specifying the screen size in milimeter and its impact on resolution calculation. Signed-off-by: Leif Middelschulte <leif.middelschulte@klsmartin.com> --- Documentation/devicetree/bindings/input/touchscreen/stmpe.txt | 4 ++++ 1 file changed, 4 insertions(+)