linux-kernel - [PATCH 3/4] arm64: dts: qcom: sm6375-pdx225: Enable ATH10K WiFi

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Date:   Wed, 27 Sep 2023 11:21:42 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 3/4] arm64: dts: qcom: sm6375-pdx225: Enable ATH10K WiFi

Enable the onboard QCA Wi-Fi. HW identifiers for reference:
qmi chip_id 0x320 chip_family 0x4001 board_id 0xff soc_id 0x400e0000

Firmware sources:
/vendor/firmware_mnt/image/wlanmdsp.bin -> qcom/.../wlanmdsp.mbn
/vendor/firmware_mnt/image/bdwlan.bXX [1] -> [2] -> ath10k/.../board-2.bin
[3] -> ath10k/.../firmware-5.bin

Not sure where 3 comes from on the device itself, gotta investigate that..

According to [4], it's called WCN3990_STRAIT.

Enable it and tighten the relevant regulators.

[1] XX = board_id printed when the file is missing or by your downstream
    kernel firmware loader in the dmesg; if XX=ff, use bdwlan.bin

[2] https://github.com/jhugo/linux/blob/5.5rc2_wifi/README
[3] https://github.com/kvalo/ath10k-firmware/blob/master/WCN3990/hw1.0/HL3.1/WLAN.HL.3.1-01040-QCAHLSWMTPLZ-1/firmware-5.bin
[4] https://git.codelinaro.org/clo/la/platform/vendor/qcom-opensource/wlan/qca-wifi-host-cmn/-/blob/LA.VENDOR.1.0.r1-20700-WAIPIO.QSSI13.0/hif/src/hif_hw_version.h#L55

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 .../boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts  | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts b/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts
index 964fe86a18ef..bbec7aee60be 100644
--- a/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts
+++ b/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts
@@ -311,7 +311,7 @@ pm6125_l20: l20 {
 
 		pm6125_l21: l21 {
 			regulator-min-microvolt = <3000000>;
-			regulator-max-microvolt = <3400000>;
+			regulator-max-microvolt = <3312000>;
 		};
 
 		pm6125_l22: l22 {
@@ -322,7 +322,7 @@ pm6125_l22: l22 {
 
 		pm6125_l23: l23 {
 			regulator-min-microvolt = <3000000>;
-			regulator-max-microvolt = <3400000>;
+			regulator-max-microvolt = <3312000>;
 		};
 
 		pm6125_l24: l24 {
@@ -345,8 +345,8 @@ pmr735a_l1: l1 {
 		};
 
 		pmr735a_l2: l2 {
-			regulator-min-microvolt = <352000>;
-			regulator-max-microvolt = <796000>;
+			regulator-min-microvolt = <640000>;
+			regulator-max-microvolt = <640000>;
 		};
 
 		pmr735a_l3: l3 {
@@ -433,6 +433,15 @@ &usb_1_hsphy {
 	status = "okay";
 };
 
+&wifi {
+	vdd-0.8-cx-mx-supply = <&pmr735a_l2>;
+	vdd-1.8-xo-supply = <&pm6125_l16>;
+	vdd-1.3-rfa-supply = <&pm6125_l2>;
+	vdd-3.3-ch0-supply = <&pm6125_l23>;
+	vdd-3.3-ch1-supply = <&pm6125_l21>;
+	status = "okay";
+};
+
 &xo_board_clk {
 	clock-frequency = <19200000>;
 };

-- 
2.42.0