linux-kernel - [PATCH v2 3/3] arm: boot: beaglex15: pass correct interrupt

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Message-id: <1451436947-22163-4-git-send-email-cw00.choi@samsung.com>
Date:	Wed, 30 Dec 2015 09:55:47 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	tony@...mide.com, robh+dt@...nel.org, lee.jones@...aro.org,
	balbi@...com
Cc:	rogerq@...com, kishon@...com, george.cherian@...com,
	cw00.choi@...sung.com, myungjoo.ham@...sung.com,
	linux-kernel@...r.kernel.org, linux@....linux.org.uk,
	linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2 3/3] arm: boot: beaglex15: pass correct interrupt

From: Felipe Balbi <balbi@...com>

According to latest schematics [1], GPIO_1/VBUSDET
on TPS659038 is tied to AM57x GPIO4_21. We can use
that as a VBUS interrupt, instead of relying on
PMIC's VBUS interrupts which don't seem to be firing
on x15 at all.

A follow up patch will add support for using this
GPIO-based interrupt mechanism for notifying about
VBUS.

[1] https://github.com/beagleboard/beagleboard-x15/blob/master/BeagleBoard-X15_RevA2.pdf

Signed-off-by: Felipe Balbi <balbi@...com>
[cw00.choi: Use the 'vbus-gpio' property instead of 'interrupts-extended']
Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
---
 arch/arm/boot/dts/am57xx-beagle-x15.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index be4990608c77..3887ba89d2a5 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -560,6 +560,7 @@
 		extcon_usb2: tps659038_usb {
 			compatible = "ti,palmas-usb-vid";
 			ti,enable-vbus-detection;
+			vbus-gpio = <&gpio4 21 GPIO_ACTIVE_HIGH>;
 		};
 
 	};
-- 
1.9.1

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