Re: [PATCH v2] arm64: dts: qcom: qdu/qru1000-idp: Fix the voltage setting

From: Komal Bajaj
Date: Thu Jun 13 2024 - 07:43:56 EST




On 5/24/2024 2:59 PM, Dmitry Baryshkov wrote:
On Fri, 24 May 2024 at 11:23, Komal Bajaj <quic_kbajaj@xxxxxxxxxxx> wrote:

While adding the USB support, it was found that the configuration
for regulator smps5 was incorrectly set. Upon cross verifying for
all the regulators, found that smps4, smps6 and smps8 are also
incorrectly configured. This patch fixes the same.

Nit: see Documentation/process/submitting-patches.rst, "This patch..."

Will update the commit message.


In particular -
- smps4 is 1.574V min and 2.04V max
- smps5 is 1.2V min and 1.4V max
- smps6 is 0.382V min and 1.12V max

Just for my understanding, will anything further constraint these values?

As far as i know, this is going to be final.
currently, usb device is not working without this min/max change.

Thanks
Komal


- smps8 is fixed at 0.752V

Fixes: d1f2cfe2f669 ("arm64: dts: qcom: Add base QDU1000/QRU1000 IDP DTs")
Signed-off-by: Komal Bajaj <quic_kbajaj@xxxxxxxxxxx>
---
Changes in v2-
* Updated the commit message as suggested by Krzysztof
* Link to v1: https://lore.kernel.org/linux-arm-msm/20240514131038.28036-1-quic_kbajaj@xxxxxxxxxxx/
---

arch/arm64/boot/dts/qcom/qdu1000-idp.dts | 16 ++++++++--------
arch/arm64/boot/dts/qcom/qru1000-idp.dts | 16 ++++++++--------
2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/qdu1000-idp.dts b/arch/arm64/boot/dts/qcom/qdu1000-idp.dts
index 6e129dc123ed..89b84fb0f70a 100644
--- a/arch/arm64/boot/dts/qcom/qdu1000-idp.dts
+++ b/arch/arm64/boot/dts/qcom/qdu1000-idp.dts
@@ -96,20 +96,20 @@ vreg_s3a_1p05: smps3 {

vreg_s4a_1p8: smps4 {
regulator-name = "vreg_s4a_1p8";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
+ regulator-min-microvolt = <1574000>;
+ regulator-max-microvolt = <2040000>;
};

vreg_s5a_2p0: smps5 {
regulator-name = "vreg_s5a_2p0";
- regulator-min-microvolt = <1904000>;
- regulator-max-microvolt = <2000000>;
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1400000>;
};

vreg_s6a_0p9: smps6 {
regulator-name = "vreg_s6a_0p9";
- regulator-min-microvolt = <920000>;
- regulator-max-microvolt = <1128000>;
+ regulator-min-microvolt = <382000>;
+ regulator-max-microvolt = <1120000>;
};

vreg_s7a_1p2: smps7 {
@@ -120,8 +120,8 @@ vreg_s7a_1p2: smps7 {

vreg_s8a_1p3: smps8 {
regulator-name = "vreg_s8a_1p3";
- regulator-min-microvolt = <1352000>;
- regulator-max-microvolt = <1352000>;
+ regulator-min-microvolt = <752000>;
+ regulator-max-microvolt = <752000>;
};

vreg_l1a_0p91: ldo1 {
diff --git a/arch/arm64/boot/dts/qcom/qru1000-idp.dts b/arch/arm64/boot/dts/qcom/qru1000-idp.dts
index 2a862c83309e..258483af065b 100644
--- a/arch/arm64/boot/dts/qcom/qru1000-idp.dts
+++ b/arch/arm64/boot/dts/qcom/qru1000-idp.dts
@@ -96,20 +96,20 @@ vreg_s3a_1p05: smps3 {

vreg_s4a_1p8: smps4 {
regulator-name = "vreg_s4a_1p8";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
+ regulator-min-microvolt = <1574000>;
+ regulator-max-microvolt = <2040000>;
};

vreg_s5a_2p0: smps5 {
regulator-name = "vreg_s5a_2p0";
- regulator-min-microvolt = <1904000>;
- regulator-max-microvolt = <2000000>;
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1400000>;
};

vreg_s6a_0p9: smps6 {
regulator-name = "vreg_s6a_0p9";
- regulator-min-microvolt = <920000>;
- regulator-max-microvolt = <1128000>;
+ regulator-min-microvolt = <382000>;
+ regulator-max-microvolt = <1120000>;
};

vreg_s7a_1p2: smps7 {
@@ -120,8 +120,8 @@ vreg_s7a_1p2: smps7 {

vreg_s8a_1p3: smps8 {
regulator-name = "vreg_s8a_1p3";
- regulator-min-microvolt = <1352000>;
- regulator-max-microvolt = <1352000>;
+ regulator-min-microvolt = <752000>;
+ regulator-max-microvolt = <752000>;
};

vreg_l1a_0p91: ldo1 {
--
2.42.0