On Thu, Sep 24, 2026 at 04:53:20PM -0500, Rob Herring (Arm) wrote: > On Wed, 16 Sep 2026 20:32:09 +0800, Quchaosheng wrote: > > Convert the TPD12S015 HDMI level shifter binding to DT schema. > > > > The TI TPD12S015 is an HDMI companion chip that combines a level shifter > > and ESD protection circuitry. Document the two ports it exposes between > > the HDMI transmitter and the connector. > > > > The tpd12s016 is software compatible with the tpd12s015 and is listed as a > > fallback compatible by am57xx-idk-common.dtsi, so accept it as a fallback > > of "ti,tpd12s015". The driver matches on "ti,tpd12s015" only, so a board > > using the tpd12s016 must list both compatibles. > > > > The gpios property takes the three CT CP HPD, LS OE and HPD GPIOs the > > driver obtains through devm_gpiod_get_index(). omap5-igep0050.dts lists the > > DDC SCL and SDA lines as two further entries, so allow up to five entries > > and keep the property description focused on the ones the driver uses. > > > > Signed-off-by: Quchaosheng <[email protected]> > > --- > > v3: > > - gpios: allow up to five entries. v2 claimed that no in-tree board passes > > more than three, but omap5-igep0050.dts passes five: the three > > control/HPD > > lines plus the DDC SCL and SDA lines. The three-entry limit added in v2 > > therefore broke dtbs_check for that board. > > > > v2: > > - Reword the description: the TPD12S016 can only be used as a fallback of > > "ti,tpd12s015", because the driver matches on "ti,tpd12s015" alone. > > > > .../bindings/display/ti/ti,tpd12s015.txt | 44 --------- > > .../bindings/display/ti/ti,tpd12s015.yaml | 93 +++++++++++++++++++ > > 2 files changed, 93 insertions(+), 44 deletions(-) > > delete mode 100644 > > Documentation/devicetree/bindings/display/ti/ti,tpd12s015.txt > > create mode 100644 > > Documentation/devicetree/bindings/display/ti/ti,tpd12s015.yaml > > > > Reviewed-by: Rob Herring (Arm) <[email protected]>
I don't think the binding is correct. The two additional GPIOs seem to be a mistake in the DT source. There's no rationale in this patch to explain why they're needed. -- Regards, Laurent Pinchart
