* [PATCH v1] arm64: dts: qcom: sm8750-mtp: Set sufficient voltage for panel nt37801
@ 2026-04-09 12:21 Ayushi Makhija
2026-06-17 17:41 ` Bjorn Andersson
0 siblings, 1 reply; 2+ messages in thread
From: Ayushi Makhija @ 2026-04-09 12:21 UTC (permalink / raw)
To: andersson, konrad.dybcio, robh+dt, krzysztof.kozlowski+dt,
conor+dt, dmitry.baryshkov
Cc: Ayushi Makhija, linux-arm-msm, devicetree, linux-kernel,
linux-arm-kernel, quic_rajeevny, quic_vproddut, Dmitry Baryshkov,
Konrad Dybcio
The NT37801 Sepc V1.0 chapter "5.7.1 Power On Sequence" states
VDDI=1.65V~1.95V, so set sufficient voltage for panel nt37801.
Fixes: 4fca6849864d ("drm/panel: Add Novatek NT37801 panel driver")
Signed-off-by: Ayushi Makhija <ayushi.makhija@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
arch/arm64/boot/dts/qcom/sm8750-mtp.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
index 3837f6785320..6ba4e69bf377 100644
--- a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
@@ -462,7 +462,7 @@ vreg_l11b_1p0: ldo11 {
vreg_l12b_1p8: ldo12 {
regulator-name = "vreg_l12b_1p8";
- regulator-min-microvolt = <1200000>;
+ regulator-min-microvolt = <1650000>;
regulator-max-microvolt = <1800000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
regulator-allow-set-load;
--
2.34.1
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH v1] arm64: dts: qcom: sm8750-mtp: Set sufficient voltage for panel nt37801
2026-04-09 12:21 [PATCH v1] arm64: dts: qcom: sm8750-mtp: Set sufficient voltage for panel nt37801 Ayushi Makhija
@ 2026-06-17 17:41 ` Bjorn Andersson
0 siblings, 0 replies; 2+ messages in thread
From: Bjorn Andersson @ 2026-06-17 17:41 UTC (permalink / raw)
To: Ayushi Makhija
Cc: konrad.dybcio, robh+dt, krzysztof.kozlowski+dt, conor+dt,
dmitry.baryshkov, linux-arm-msm, devicetree, linux-kernel,
linux-arm-kernel, quic_rajeevny, quic_vproddut, Dmitry Baryshkov,
Konrad Dybcio
On Thu, Apr 09, 2026 at 05:51:09PM +0530, Ayushi Makhija wrote:
Here's a link to "v1":
https://lore.kernel.org/all/20260323102229.1546504-1-quic_amakhija@quicinc.com/
Which makes this v2.
You also ignored my feedback.
Thank you,
Bjorn
> The NT37801 Sepc V1.0 chapter "5.7.1 Power On Sequence" states
> VDDI=1.65V~1.95V, so set sufficient voltage for panel nt37801.
>
> Fixes: 4fca6849864d ("drm/panel: Add Novatek NT37801 panel driver")
> Signed-off-by: Ayushi Makhija <ayushi.makhija@oss.qualcomm.com>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> ---
> arch/arm64/boot/dts/qcom/sm8750-mtp.dts | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
> index 3837f6785320..6ba4e69bf377 100644
> --- a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
> +++ b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
> @@ -462,7 +462,7 @@ vreg_l11b_1p0: ldo11 {
>
> vreg_l12b_1p8: ldo12 {
> regulator-name = "vreg_l12b_1p8";
> - regulator-min-microvolt = <1200000>;
> + regulator-min-microvolt = <1650000>;
> regulator-max-microvolt = <1800000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> --
> 2.34.1
>
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2026-04-09 12:21 [PATCH v1] arm64: dts: qcom: sm8750-mtp: Set sufficient voltage for panel nt37801 Ayushi Makhija
2026-06-17 17:41 ` Bjorn Andersson
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