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From a87852e37f782257ebc57cc44a0d3fbf806471f6 Mon Sep 17 00:00:00 2001
From: Jonas Karlman <jonas@kwiboo.se>
Date: Mon, 24 Jul 2023 14:52:16 +0000
Subject: [PATCH] arm64: dts: rockchip: Fix PCIe regulators on Radxa E25
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@kwiboo.se>
Link: https://lore.kernel.org/r/20230724145213.3833099-1-jonas@kwiboo.se
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
.../arm64/boot/dts/rockchip/rk3568-radxa-e25.dts | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/arch/arm64/boot/dts/rockchip/rk3568-radxa-e25.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-radxa-e25.dts
@@ -47,6 +47,9 @@
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 @@
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 @@
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 @@
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 @@
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";
};
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