[PATCH 2/3] ARM: dts: imx7s-warp: Improve the Wifi description

Fabio Estevam
2025-05-13T14:23:39Z

GPIO5_10 is connected to the BCM43455 WL_REG_ON pin and it is better
descrbed via mmc-pwrseq-simple.yaml.

Also improve the Wifi devicetree description by passing a compatible
string that describes the BCM43455 presence as per brcm,bcm4329-fmac.yaml.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
arch/arm/boot/dts/nxp/imx/imx7s-warp.dts | 29 +++++++++++++-----------
1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/arch/arm/boot/dts/nxp/imx/imx7s-warp.dts b/arch/arm/boot/dts/nxp/imx/imx7s-warp.dts
index b66e612d3329..f2cd95e992e7 100644
--- a/arch/arm/boot/dts/nxp/imx/imx7s-warp.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx7s-warp.dts
@@ -31,18 +31,6 @@ back {
};
};

- reg_brcm: regulator-brcm {
- compatible = "regulator-fixed";
- enable-active-high;
- gpio = <&gpio5 10 GPIO_ACTIVE_HIGH>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_brcm_reg>;
- regulator-name = "brcm_reg";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- startup-delay-us = <200000>;
- };
-
reg_peri_3p15v: regulator-peri-3p15v {
compatible = "regulator-fixed";
regulator-name = "peri_3p15v_reg";
@@ -51,6 +39,14 @@ reg_peri_3p15v: regulator-peri-3p15v {
regulator-always-on;
};

+ sdio_pwrseq: sdio-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_brcm_reg>;
+ post-power-on-delay-ms = <200>;
+ reset-gpios = <&gpio5 10 GPIO_ACTIVE_LOW>;
+ };
+
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "imx7-sgtl5000";
@@ -301,14 +297,21 @@ &usbotg1 {
};

&usdhc1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc1>;
bus-width = <4>;
keep-power-in-suspend;
no-1-8-v;
non-removable;
- vmmc-supply = <&reg_brcm>;
+ mmc-pwrseq = <&sdio_pwrseq>;
status = "okay";
+
+ wifi@0 {
+ compatible = "brcm,bcm43455-fmac", "brcm,bcm4329-fmac";
+ reg = <0>;
+ };
};

&usdhc3 {
--
2.34.1