This is a note to let you know that I've just added the patch titled
arm64: dts: rockchip: Fix PCIe regulators on Radxa E25
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-dts-rockchip-fix-pcie-regulators-on-radxa-e25.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ea6370d55ffb2b4a79a824620b36d7bd6d1fb21e
Author: Jonas Karlman <jonas@xxxxxxxxx>
Date: Mon Jul 24 14:52:16 2023 +0000
arm64: dts: rockchip: Fix PCIe regulators on Radxa E25
[ Upstream commit a87852e37f782257ebc57cc44a0d3fbf806471f6 ]
Despite its name, the regulator vcc3v3_pcie30x1 has nothing to do with
pcie30x1. Instead, it supply power to VBAT1-5 on the M.2 KEY B port as
seen on page 8 of the schematic [1].
pcie30x1 is used for the mini PCIe slot, and as seen on page 9 the
vcc3v3_minipcie regulator is instead related to pcie30x1.
The M.2 KEY B port can be used for WWAN USB2 modules or SATA drives.
Use correct regulator vcc3v3_minipcie for pcie30x1.
[1] https://dl.radxa.com/cm3p/e25/radxa-e25-v1.4-sch.pdf
Fixes: 2bf2f4d9f673 ("arm64: dts: rockchip: Add Radxa CM3I E25")
Signed-off-by: Jonas Karlman <jonas@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230724145213.3833099-1-jonas@xxxxxxxxx
Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm64/boot/dts/rockchip/rk3568-radxa-e25.dts b/arch/arm64/boot/dts/rockchip/rk3568-radxa-e25.dts
index 63c4bd873188e..f0e4884438e39 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-radxa-e25.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-radxa-e25.dts
@@ -47,6 +47,9 @@ vbus_typec: vbus-typec-regulator {
vin-supply = <&vcc5v0_sys>;
};
+ /* actually fed by vcc5v0_sys, dependent
+ * on pi6c clock generator
+ */
vcc3v3_minipcie: vcc3v3-minipcie-regulator {
compatible = "regulator-fixed";
enable-active-high;
@@ -54,9 +57,9 @@ vcc3v3_minipcie: vcc3v3-minipcie-regulator {
pinctrl-names = "default";
pinctrl-0 = <&minipcie_enable_h>;
regulator-name = "vcc3v3_minipcie";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- vin-supply = <&vcc5v0_sys>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vcc3v3_pi6c_05>;
};
vcc3v3_ngff: vcc3v3-ngff-regulator {
@@ -71,9 +74,6 @@ vcc3v3_ngff: vcc3v3-ngff-regulator {
vin-supply = <&vcc5v0_sys>;
};
- /* actually fed by vcc5v0_sys, dependent
- * on pi6c clock generator
- */
vcc3v3_pcie30x1: vcc3v3-pcie30x1-regulator {
compatible = "regulator-fixed";
enable-active-high;
@@ -83,7 +83,7 @@ vcc3v3_pcie30x1: vcc3v3-pcie30x1-regulator {
regulator-name = "vcc3v3_pcie30x1";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
- vin-supply = <&vcc3v3_pi6c_05>;
+ vin-supply = <&vcc5v0_sys>;
};
vcc3v3_pi6c_05: vcc3v3-pi6c-05-regulator {
@@ -117,7 +117,7 @@ &pcie3x1 {
pinctrl-names = "default";
pinctrl-0 = <&pcie30x1m0_pins>;
reset-gpios = <&gpio0 RK_PC3 GPIO_ACTIVE_HIGH>;
- vpcie3v3-supply = <&vcc3v3_pcie30x1>;
+ vpcie3v3-supply = <&vcc3v3_minipcie>;
status = "okay";
};
