diff options
Diffstat (limited to 'recipes-kernel/linux/linux-yocto/workarounds/0002-PENDING-arm64-dts-qcs6490-rb3-Remove-voltage-voting-.patch')
| -rw-r--r-- | recipes-kernel/linux/linux-yocto/workarounds/0002-PENDING-arm64-dts-qcs6490-rb3-Remove-voltage-voting-.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/recipes-kernel/linux/linux-yocto/workarounds/0002-PENDING-arm64-dts-qcs6490-rb3-Remove-voltage-voting-.patch b/recipes-kernel/linux/linux-yocto/workarounds/0002-PENDING-arm64-dts-qcs6490-rb3-Remove-voltage-voting-.patch new file mode 100644 index 0000000..9c0ddcd --- /dev/null +++ b/recipes-kernel/linux/linux-yocto/workarounds/0002-PENDING-arm64-dts-qcs6490-rb3-Remove-voltage-voting-.patch @@ -0,0 +1,60 @@ +From b9b8286e4a3d72353ee90181f10507e2dfb1fd2b Mon Sep 17 00:00:00 2001 +From: Umang Chheda <quic_uchheda@quicinc.com> +Date: Wed, 18 Oct 2023 18:14:15 +0530 +Subject: [PATCH 2/2] PENDING: arm64: dts: qcs6490-rb3: Remove voltage voting + for USB rails + +USB driver does not vote for voltage on hsphy and ssphy +rails. Due to which the initial voltage set by bootloader +is overridden by regulator framework with min voltage specified +on regulator registration. + +Fix this temporarily by removing voltage voting support, which +will prevent regulator framework overriding the voltage set by +bootloader for QCS6490 RB3 Platform. + +This commit will be reverted once voltage voting support is added +in USB driver. + +Signed-off-by: Umang Chheda <quic_uchheda@quicinc.com> +Signed-off-by: Atul Dhudase <quic_adhudase@quicinc.com> +Upstream-Status: Pending +--- + arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 14 ++++++++++++++ + 1 file changed, 14 insertions(+) + +diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts +index 2b30e8900991..1e20395d07ae 100644 +--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts ++++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts +@@ -488,6 +488,13 @@ &usb_1_qmpphy { + status = "okay"; + }; + ++&vreg_l1b_0p912 { ++ /delete-property/regulator-min-microvolt; ++ /delete-property/regulator-max-microvolt; ++ regulator-allow-set-load; ++ regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM RPMH_REGULATOR_MODE_HPM>; ++}; ++ + &vreg_l7b_2p952 { + /delete-property/regulator-min-microvolt; + /delete-property/regulator-max-microvolt; +@@ -502,6 +509,13 @@ &vreg_l9b_1p2 { + regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM RPMH_REGULATOR_MODE_HPM>; + }; + ++&vreg_l10c_0p88 { ++ /delete-property/regulator-min-microvolt; ++ /delete-property/regulator-max-microvolt; ++ regulator-allow-set-load; ++ regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM RPMH_REGULATOR_MODE_HPM>; ++}; ++ + &wifi { + memory-region = <&wlan_fw_mem>; + }; +-- +2.25.1 + |