linux-kernel - [PATCH 3/3] ARM: dts: omap4-embt2ws: enable 32K clock on WLAN

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Message-Id: <20230819134147.456060-4-andreas@kemnade.info>
Date:   Sat, 19 Aug 2023 15:41:47 +0200
From:   Andreas Kemnade <andreas@...nade.info>
To:     mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        bcousson@...libre.com, tony@...mide.com, andreas@...nade.info,
        linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org
Subject: [PATCH 3/3] ARM: dts: omap4-embt2ws: enable 32K clock on WLAN

WLAN did only work if clock was left enabled by the original system,
so make it fully enable the needed resources itself.

Signed-off-by: Andreas Kemnade <andreas@...nade.info>
---
 arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts
index ee86981b2e448..9ca540ef86265 100644
--- a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts
+++ b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts
@@ -69,6 +69,12 @@ unknown_supply: unknown-supply {
 		regulator-name = "unknown";
 	};
 
+	wl12xx_pwrseq: wl12xx-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		clocks = <&clk32kaudio>;
+		clock-names = "ext_clock";
+	};
+
        /* regulator for wl12xx on sdio2 */
 	wl12xx_vmmc: wl12xx-vmmc {
 		pinctrl-names = "default";
@@ -97,6 +103,11 @@ twl: pmic@48 {
 		interrupt-controller;
 		#interrupt-cells = <1>;
 
+		clk32kaudio: clk-32kaudio {
+			compatible = "ti,twl6032-clk32kaudio";
+			#clock-cells = <0>;
+		};
+
 		rtc {
 			compatible = "ti,twl4030-rtc";
 			interrupts = <11>;
@@ -316,6 +327,7 @@ &mmc3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&wl12xx_pins>;
 	vmmc-supply = <&wl12xx_vmmc>;
+	mmc-pwrseq = <&wl12xx_pwrseq>;
 	interrupts-extended = <&wakeupgen GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core 0x12e>;
 	non-removable;
-- 
2.39.2