dt-bindings: display/msm: hdmi: mark hdmi-mux-supply as deprecated

hdmi-mux-supply is not used by the SoC's HDMI block, it is thought to
power up the external logic. Thus it should not be a part of HDMI
bindings, but it should be declared at some other device in the DT (like
HDMI mux, bridge, etc). Mark it as deprecated.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/488870/
Link: https://lore.kernel.org/r/20220609122350.3157529-4-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

dt-bindings: display/msm: hdmi: mark old GPIO properties as deprecated

Mark obsolete GPIO properties as deprecated. They are not used by
existing device trees. While we are at it, also drop them from the
schema example.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/488852/
Link: https://lore.kernel.org/r/20220609122350.3157529-3-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

dt-bindings: display/msm: hdmi: split and convert to yaml

Convert Qualcomm HDMI binding into HDMI TX and PHY yaml bindings.

Changes to schema:
HDMI:
- fixed reg-names numbering to match 0..3 instead 0,1,3,4
- dropped qcom,tx-ddc-* from example, they were not documented
- make phy-names deprecated, drop it from the examples

PHY:
- moved into phy/ directory
- split into QMP and non-QMP PHY schemas

Co-developed-by: David Heidelberg <david@ixit.cz>
Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/488850/
Link: https://lore.kernel.org/r/20220609122350.3157529-2-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>