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Date: Wed, 27 Dec 2023 23:28:28 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, Johan Hovold <johan+linaro@...nel.org>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>,
linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Konrad Dybcio <konrad.dybcio@...ainline.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 3/3] arm64: dts: qcom: sc8280xp-crd: Add PCIe CLKREQ# sleep
state
The CLKREQ pin should not be muxed to its active function when the RC
is asleep. Add the missing pin sleep states to resolve that.
Fixes: d907fe5acbf1 ("arm64: dts: qcom: sc8280xp-crd: enable WiFi controller")
Fixes: 17e2ccaf65d1 ("arm64: dts: qcom: sc8280xp-crd: enable SDX55 modem")
Fixes: 6a1ec5eca73c ("arm64: dts: qcom: sc8280xp-crd: enable NVMe SSD")
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 78 ++++++++++++++++++++-----------
1 file changed, 51 insertions(+), 27 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
index ffc4406422ae..58c0c2d10cb3 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
@@ -530,8 +530,9 @@ &pcie2a {
vddpe-3v3-supply = <&vreg_nvme>;
- pinctrl-names = "default";
- pinctrl-0 = <&pcie2a_default>;
+ pinctrl-0 = <&pcie2a_default>, <&pcie2a_clkreq_default>;
+ pinctrl-1 = <&pcie2a_default>, <&pcie2a_clkreq_sleep>;
+ pinctrl-names = "default", "sleep";
status = "okay";
};
@@ -549,8 +550,9 @@ &pcie3a {
vddpe-3v3-supply = <&vreg_wwan>;
- pinctrl-names = "default";
- pinctrl-0 = <&pcie3a_default>;
+ pinctrl-0 = <&pcie3a_default>, <&pcie3a_clkreq_default>;
+ pinctrl-1 = <&pcie3a_default>, <&pcie3a_clkreq_sleep>;
+ pinctrl-names = "default", "sleep";
status = "okay";
};
@@ -568,8 +570,9 @@ &pcie4 {
vddpe-3v3-supply = <&vreg_wlan>;
- pinctrl-names = "default";
- pinctrl-0 = <&pcie4_default>;
+ pinctrl-0 = <&pcie4_default>, <&pcie4_clkreq_default>;
+ pinctrl-1 = <&pcie4_default>, <&pcie4_clkreq_sleep>;
+ pinctrl-names = "default", "sleep";
status = "okay";
};
@@ -835,13 +838,6 @@ nvme_reg_en: nvme-reg-en-state {
};
pcie2a_default: pcie2a-default-state {
- clkreq-n-pins {
- pins = "gpio142";
- function = "pcie2a_clkreq";
- drive-strength = <2>;
- bias-pull-up;
- };
-
perst-n-pins {
pins = "gpio143";
function = "gpio";
@@ -857,14 +853,21 @@ wake-n-pins {
};
};
- pcie3a_default: pcie3a-default-state {
- clkreq-n-pins {
- pins = "gpio150";
- function = "pcie3a_clkreq";
- drive-strength = <2>;
- bias-pull-up;
- };
+ pcie2a_clkreq_default: pcie2a-clkreq-default-state {
+ pins = "gpio142";
+ function = "pcie2a_clkreq";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ pcie2a_clkreq_sleep: pcie2a-clkreq-sleep-state {
+ pins = "gpio142";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ pcie3a_default: pcie3a-default-state {
perst-n-pins {
pins = "gpio151";
function = "gpio";
@@ -880,14 +883,21 @@ wake-n-pins {
};
};
- pcie4_default: pcie4-default-state {
- clkreq-n-pins {
- pins = "gpio140";
- function = "pcie4_clkreq";
- drive-strength = <2>;
- bias-pull-up;
- };
+ pcie3a_clkreq_default: pcie3a-clkreq-default-state {
+ pins = "gpio150";
+ function = "pcie3a_clkreq";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ pcie3a_clkreq_sleep: pcie3a-clkreq-sleep-state {
+ pins = "gpio150";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ pcie4_default: pcie4-default-state {
perst-n-pins {
pins = "gpio141";
function = "gpio";
@@ -903,6 +913,20 @@ wake-n-pins {
};
};
+ pcie4_clkreq_default: pcie4-clkreq-default-state {
+ pins = "gpio140";
+ function = "pcie4_clkreq";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ pcie4_clkreq_sleep: pcie4-clkreq-sleep-state {
+ pins = "gpio140";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
sdc2_default_state: sdc2-default-state {
clk-pins {
pins = "sdc2_clk";
--
2.43.0
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