linux-kernel - [PATCH] ARM: dts: omap4-embt2ws: Add Bluetooth

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Date:   Tue, 26 Sep 2023 22:42:04 +0200
From:   Andreas Kemnade <andreas@...nade.info>
To:     bcousson@...libre.com, tony@...mide.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Andreas Kemnade <andreas@...nade.info>
Subject: [PATCH] ARM: dts: omap4-embt2ws: Add Bluetooth

Since the required clock is now available, add bluetooth.

Note: Firmware (bts file) from device vendor reroutes tx for some time
during initialisation and later put it back, producing timeouts in
bluetooth initialisation but ignoring that command leads to proper
initialisation.

Signed-off-by: Andreas Kemnade <andreas@...nade.info>
---
Depends on: https://lore.kernel.org/linux-omap/20230916100515.1650336-6-andreas@kemnade.info/T/#u
 arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

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 9d2f2d8639496..25b80385dc1f0 100644
--- a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts
+++ b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts
@@ -478,10 +478,12 @@ &uart2 {
 	interrupts-extended = <&wakeupgen GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART2_RX>;
 
-	/*
-	 * BT + GPS in WL1283 in WG7500 requiring CLK32KAUDIO of pmic
-	 * which does not have a driver
-	 */
+	bluetooth: tiwi {
+		compatible = "ti,wl1283-st";
+		enable-gpios = <&gpio1 25 GPIO_ACTIVE_HIGH>;	/* GPIO_25 */
+		clocks = <&twl 1>;
+		clock-names = "ext_clock";
+	};
 };
 
 &uart3 {
-- 
2.39.2