Re: [PATCH] arm64: dts: apq8096-db820c: Increase load on l21 for SDCARD

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On 12/12/2018 10:13 AM, Loic Poulain wrote:
In the same way as for msm8974-hammerhead, l21 load, used for SDCARD
VMMC, needs to be increased in order to prevent any voltage drop issues
(due to limited current) happening with some SDCARDS or during specific
operations (e.g. write).

Fixes: 660a9763c6a9 (arm64: dts: qcom: db820c: Add pm8994 regulator node)
Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index 104cad9..c15e2c0 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -634,6 +634,8 @@
  				l21 {
  					regulator-min-microvolt = <2950000>;
  					regulator-max-microvolt = <2950000>;
+					regulator-allow-set-load;
+					regulator-system-load = <200000>;
  				};
  				l22 {
  					regulator-min-microvolt = <3300000>;


I'm curious, why not update sdhci-msm to set the load on the regulator?

--
Jeffrey Hugo
Qualcomm Datacenter Technologies as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.



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