The wlan firmware memory is statically mapped in the Trusted Firmware, hence the wlan driver does not need to map/unmap this region dynamically. Hence add the property to indicate the wlan driver to not map/unamp the firmware memory region dynamically. Also add the chain1 voltage supply for wlan. Signed-off-by: Rakesh Pillai <pillair@xxxxxxxxxxxxxx> --- This patch is created on top of the change by Douglas Anderson. https://lkml.org/lkml/2020/6/25/817 Also the dt-bindings for the chain1 voltage supply is added by the below patch series: https://patchwork.kernel.org/project/linux-wireless/list/?series=309137 --- arch/arm64/boot/dts/qcom/sc7180-idp.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc7180-idp.dts b/arch/arm64/boot/dts/qcom/sc7180-idp.dts index 472f7f4..4c64bc1 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-idp.dts +++ b/arch/arm64/boot/dts/qcom/sc7180-idp.dts @@ -391,10 +391,12 @@ &wifi { status = "okay"; + qcom,msa-fixed-perm; vdd-0.8-cx-mx-supply = <&vreg_l9a_0p6>; vdd-1.8-xo-supply = <&vreg_l1c_1p8>; vdd-1.3-rfa-supply = <&vreg_l2c_1p3>; vdd-3.3-ch0-supply = <&vreg_l10c_3p3>; + vdd-3.3-ch1-supply = <&vreg_l11c_3p3>; wifi-firmware { iommus = <&apps_smmu 0xc2 0x1>; }; -- 2.7.4