* [PATCH] arm64: dts: mt8173: Power on panel regulator on boot
@ 2023-04-17 12:39 Pin-yen Lin
2023-04-17 13:32 ` Doug Anderson
2023-05-29 16:16 ` Matthias Brugger
0 siblings, 2 replies; 4+ messages in thread
From: Pin-yen Lin @ 2023-04-17 12:39 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Matthias Brugger,
AngeloGioacchino Del Regno
Cc: linux-kernel, devicetree, linux-arm-kernel, linux-mediatek,
Doug Anderson, Pin-yen Lin
Add "regulator-boot-on" to "panel_fixed_3v3" to save time on powering
the regulator during boot. Also add "off-on-delay-us" to the node to
make sure the regulator never violates the panel timing requirements.
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
---
arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
index d77f6af19065..03d1ab2ca820 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
@@ -96,6 +96,8 @@ panel_fixed_3v3: regulator1 {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
enable-active-high;
+ regulator-boot-on;
+ off-on-delay-us = <500000>;
gpio = <&pio 41 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&panel_fixed_pins>;
--
2.40.0.634.g4ca3ef3211-goog
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] arm64: dts: mt8173: Power on panel regulator on boot
2023-04-17 12:39 [PATCH] arm64: dts: mt8173: Power on panel regulator on boot Pin-yen Lin
@ 2023-04-17 13:32 ` Doug Anderson
2023-05-26 6:14 ` Pin-yen Lin
2023-05-29 16:16 ` Matthias Brugger
1 sibling, 1 reply; 4+ messages in thread
From: Doug Anderson @ 2023-04-17 13:32 UTC (permalink / raw)
To: Pin-yen Lin
Cc: Rob Herring, Krzysztof Kozlowski, Matthias Brugger,
AngeloGioacchino Del Regno, linux-kernel, devicetree,
linux-arm-kernel, linux-mediatek
Hi,
On Mon, Apr 17, 2023 at 5:40 AM Pin-yen Lin <treapking@chromium.org> wrote:
>
> Add "regulator-boot-on" to "panel_fixed_3v3" to save time on powering
> the regulator during boot. Also add "off-on-delay-us" to the node to
> make sure the regulator never violates the panel timing requirements.
>
> Signed-off-by: Pin-yen Lin <treapking@chromium.org>
>
> ---
>
> arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 2 ++
> 1 file changed, 2 insertions(+)
Reviewed-by: Douglas Anderson <dianders@chromium.org>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: dts: mt8173: Power on panel regulator on boot
2023-04-17 13:32 ` Doug Anderson
@ 2023-05-26 6:14 ` Pin-yen Lin
0 siblings, 0 replies; 4+ messages in thread
From: Pin-yen Lin @ 2023-05-26 6:14 UTC (permalink / raw)
To: Matthias Brugger
Cc: Rob Herring, Krzysztof Kozlowski, AngeloGioacchino Del Regno,
linux-kernel, devicetree, linux-arm-kernel, linux-mediatek,
Doug Anderson
Friendly ping on this patch.
Pin-yen
On Mon, Apr 17, 2023 at 9:32 PM Doug Anderson <dianders@chromium.org> wrote:
>
> Hi,
>
> On Mon, Apr 17, 2023 at 5:40 AM Pin-yen Lin <treapking@chromium.org> wrote:
> >
> > Add "regulator-boot-on" to "panel_fixed_3v3" to save time on powering
> > the regulator during boot. Also add "off-on-delay-us" to the node to
> > make sure the regulator never violates the panel timing requirements.
> >
> > Signed-off-by: Pin-yen Lin <treapking@chromium.org>
> >
> > ---
> >
> > arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 2 ++
> > 1 file changed, 2 insertions(+)
>
> Reviewed-by: Douglas Anderson <dianders@chromium.org>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: dts: mt8173: Power on panel regulator on boot
2023-04-17 12:39 [PATCH] arm64: dts: mt8173: Power on panel regulator on boot Pin-yen Lin
2023-04-17 13:32 ` Doug Anderson
@ 2023-05-29 16:16 ` Matthias Brugger
1 sibling, 0 replies; 4+ messages in thread
From: Matthias Brugger @ 2023-05-29 16:16 UTC (permalink / raw)
To: Pin-yen Lin, Rob Herring, Krzysztof Kozlowski,
AngeloGioacchino Del Regno
Cc: linux-kernel, devicetree, linux-arm-kernel, linux-mediatek,
Doug Anderson
On 17/04/2023 14:39, Pin-yen Lin wrote:
> Add "regulator-boot-on" to "panel_fixed_3v3" to save time on powering
> the regulator during boot. Also add "off-on-delay-us" to the node to
> make sure the regulator never violates the panel timing requirements.
>
> Signed-off-by: Pin-yen Lin <treapking@chromium.org>
>
Applied, thanks!
> ---
>
> arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
> index d77f6af19065..03d1ab2ca820 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
> @@ -96,6 +96,8 @@ panel_fixed_3v3: regulator1 {
> regulator-min-microvolt = <3300000>;
> regulator-max-microvolt = <3300000>;
> enable-active-high;
> + regulator-boot-on;
> + off-on-delay-us = <500000>;
> gpio = <&pio 41 GPIO_ACTIVE_HIGH>;
> pinctrl-names = "default";
> pinctrl-0 = <&panel_fixed_pins>;
^ permalink raw reply [flat|nested] 4+ messages in thread
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2023-04-17 12:39 [PATCH] arm64: dts: mt8173: Power on panel regulator on boot Pin-yen Lin
2023-04-17 13:32 ` Doug Anderson
2023-05-26 6:14 ` Pin-yen Lin
2023-05-29 16:16 ` Matthias Brugger
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