[PATCH V1] arm64: dts: qcom: sa8775p-ride: Update L4C parameters

Nitin Rawat posted 1 patch 2 years, 7 months ago
arch/arm64/boot/dts/qcom/sa8775p-ride.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
[PATCH V1] arm64: dts: qcom: sa8775p-ride: Update L4C parameters
Posted by Nitin Rawat 2 years, 7 months ago
From: Naveen Kumar Goud Arepalli <quic_narepall@quicinc.com>

L4c is the supply for UFS vccq, As per UFS spec range of vccq is
1.14V to 1.26V, There are stability issues when operating at
marginal voltage. Hence configure the min and max vccq voltages
to 1.2V.

Signed-off-by: Naveen Kumar Goud Arepalli <quic_narepall@quicinc.com>
---
 arch/arm64/boot/dts/qcom/sa8775p-ride.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
index ab767cfa51ff..26f5a4e0ffed 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
+++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
@@ -153,8 +153,8 @@
 
 		vreg_l4c: ldo4 {
 			regulator-name = "vreg_l4c";
-			regulator-min-microvolt = <1100000>;
-			regulator-max-microvolt = <1300000>;
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1200000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 			/*
 			 * FIXME: This should have regulator-allow-set-load but
-- 
2.17.1
Re: [PATCH V1] arm64: dts: qcom: sa8775p-ride: Update L4C parameters
Posted by Krzysztof Kozlowski 2 years, 7 months ago
On 11/07/2023 12:42, Nitin Rawat wrote:
> From: Naveen Kumar Goud Arepalli <quic_narepall@quicinc.com>
> 
> L4c is the supply for UFS vccq, As per UFS spec range of vccq is
> 1.14V to 1.26V, There are stability issues when operating at
> marginal voltage. Hence configure the min and max vccq voltages
> to 1.2V.
> 
> Signed-off-by: Naveen Kumar Goud Arepalli <quic_narepall@quicinc.com>

Thank you for your patch. Please add proper Sign-off-by (yours) when
sending patches.

Best regards,
Krzysztof