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| author | Kamal Wadhwa <kamal.wadhwa@oss.qualcomm.com> | 2026-07-22 19:53:39 +0530 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2026-09-17 22:15:15 -0500 |
| commit | 96cbfa4f4ec4ea0b9da7ee354b9233ad8887e805 (patch) | |
| tree | 1937c179f3198cd2d26e15e945a95745648fd8d9 | |
| parent | fc80b73afd911f6199bd066b843caf7d7ca20cd5 (diff) | |
| download | linux-next-96cbfa4f4ec4ea0b9da7ee354b9233ad8887e805.tar.gz linux-next-96cbfa4f4ec4ea0b9da7ee354b9233ad8887e805.zip | |
arm64: dts: qcom: glymur-crd: Update VREG l2b_e0 and l9b_e0 voltage for SD-card
SD cards may need 1.8v VDDIO also to be supported, to accommodate this
requirement reduce the min voltage to 1.8v for `vreg_l2b_e0` which
supplies to VDDIO pin of SD card.
NOTE - Since this SD card is the only client on this regulator, this
change should not have any side effect on any other clients.
moreover, SD card driver takes care to explicitly vote for the
regulator voltage based on the SD card detection sequence.
Also for stable operation of the SD card increase VDD voltage
supplied by `vreg_l9b_e0` to 2.96v.
Signed-off-by: Kamal Wadhwa <kamal.wadhwa@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Monish Chunara <monish.chunara@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Tested-by: Pankaj Patil <pankaj.patil@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260722142342.990384-2-mchunara@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/qcom/glymur-crd.dtsi | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/arm64/boot/dts/qcom/glymur-crd.dtsi b/arch/arm64/boot/dts/qcom/glymur-crd.dtsi index 4df3ccfee106..ccdc322157e0 100644 --- a/arch/arm64/boot/dts/qcom/glymur-crd.dtsi +++ b/arch/arm64/boot/dts/qcom/glymur-crd.dtsi @@ -373,7 +373,7 @@ vreg_l2b_e0_2p9: ldo2 { regulator-name = "vreg_l2b_e0_2p9"; - regulator-min-microvolt = <2904000>; + regulator-min-microvolt = <1804000>; regulator-max-microvolt = <2904000>; regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; }; @@ -392,10 +392,10 @@ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; }; - vreg_l9b_e0_2p7: ldo9 { - regulator-name = "vreg_l9b_e0_2p7"; - regulator-min-microvolt = <2704000>; - regulator-max-microvolt = <2704000>; + vreg_l9b_e0_2p9: ldo9 { + regulator-name = "vreg_l9b_e0_2p9"; + regulator-min-microvolt = <2960000>; + regulator-max-microvolt = <2960000>; regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; }; |