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On the Kaanapali platform, this panel is already in use, and the regulator range is configured as 1.65 V to 1.8 V. The NT37801 Specification v1.0, Chapter 5.7.1 "Power On Sequence", specifies a VDDI operating range of 1.65 V to 1.95 V. However, ldo12 supports an output range of 1.2 V to 1.8 V. Therefore, the regulator constraints have been updated to 1.65 V to 1.8 V, which is within both the panel's supported range and the regulator's capabilities. Link : https://lore.kernel.org/all/20260322-knp-pmic-dt-v1-6-70bc40ea4428@oss.qualcomm.com/ Please let me know if you have any further queries. Thanks, Arpit On 6/17/2026 11:11 PM, Bjorn Andersson wrote: > 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 >> Reviewed-by: Dmitry Baryshkov >> Reviewed-by: Konrad Dybcio >> --- >> 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 = ; >> regulator-allow-set-load; >> -- >> 2.34.1 >>