diff options
| author | Douglas Anderson <dianders@chromium.org> | 2023-07-27 10:16:38 -0700 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2023-09-19 15:14:09 -0700 |
| commit | 989aac9dea7fcfc33b5eedc4ae44abbf71460a4d (patch) | |
| tree | abd0b14a4ee639d7fb636af225c1091ab121e070 | |
| parent | 20ef4f6445681217c0cb49dc21402cb2836b22aa (diff) | |
| download | lwn-989aac9dea7fcfc33b5eedc4ae44abbf71460a4d.tar.gz lwn-989aac9dea7fcfc33b5eedc4ae44abbf71460a4d.zip | |
arm64: dts: qcom: sc7180: Link trogdor touchscreens to the panels
Let's provide the proper link from the touchscreen to the panel on
trogdor devices where the touchscreen support it. This allows the OS
to power sequence the touchscreen more properly.
For the most part, this is just expected to marginally improve power
consumption while the screen is off. However, in at least one trogdor
model (wormdingler) it's suspected that this will fix some behavorial
corner cases when the panel power cycles (like for a modeset) without
the touchscreen power cycling.
NOTE: some trogdor variants use touchscreens that don't (yet) support
linking the touchscreen and the panel. Those variants are left alone.
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Benjamin Tissoires <bentiss@kernel.org>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20230727101636.v4.11.Ia06c340e3482563e6bfd3106ecd0d3139f173ca4@changeid
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
6 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi index a532cc4aac47..722f246b8b77 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi @@ -104,6 +104,7 @@ ap_ts_pen_1v8: &i2c4 { interrupt-parent = <&tlmm>; interrupts = <9 IRQ_TYPE_LEVEL_LOW>; + panel = <&panel>; reset-gpios = <&tlmm 8 GPIO_ACTIVE_LOW>; vdd-supply = <&pp3300_ts>; diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi index b27dcd2ec856..062dbe782667 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi @@ -116,6 +116,7 @@ ap_ts_pen_1v8: &i2c4 { interrupt-parent = <&tlmm>; interrupts = <9 IRQ_TYPE_LEVEL_LOW>; + panel = <&panel>; reset-gpios = <&tlmm 8 GPIO_ACTIVE_LOW>; vdd-supply = <&pp3300_touch>; diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi index 13339b723a93..e9f213d27711 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi @@ -43,6 +43,7 @@ ap_ts_pen_1v8: &i2c4 { interrupt-parent = <&tlmm>; interrupts = <9 IRQ_TYPE_LEVEL_LOW>; + panel = <&panel>; post-power-on-delay-ms = <20>; hid-descr-addr = <0x0001>; diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom.dtsi index fd944842dd6c..d325bb52ae5f 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom.dtsi @@ -102,6 +102,7 @@ ap_ts_pen_1v8: &i2c4 { interrupt-parent = <&tlmm>; interrupts = <9 IRQ_TYPE_LEVEL_LOW>; + panel = <&panel>; post-power-on-delay-ms = <20>; hid-descr-addr = <0x0001>; diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-quackingstick.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-quackingstick.dtsi index 62ab6427dd65..e5d6a7898f8c 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-quackingstick.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-quackingstick.dtsi @@ -69,6 +69,7 @@ interrupt-parent = <&tlmm>; interrupts = <9 IRQ_TYPE_LEVEL_LOW>; + panel = <&panel>; post-power-on-delay-ms = <20>; hid-descr-addr = <0x0001>; diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-wormdingler.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-wormdingler.dtsi index 2f6a340ddd2a..305ad127246e 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-wormdingler.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-wormdingler.dtsi @@ -123,6 +123,7 @@ interrupt-parent = <&tlmm>; interrupts = <9 IRQ_TYPE_EDGE_FALLING>; + panel = <&panel>; post-power-on-delay-ms = <70>; hid-descr-addr = <0x0001>; |