linux-kernel - [RFC PATCH 5/6] ARM: dts: omap3beagle-xm: Add idle state pins for USB host

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Message-ID: <1371650753-11452-6-git-send-email-rogerq@ti.com>
Date:	Wed, 19 Jun 2013 17:05:52 +0300
From:	Roger Quadros <rogerq@...com>
To:	<stern@...land.harvard.edu>, <tony@...mide.com>
CC:	<balbi@...com>, <ruslan.bilovol@...com>,
	<linux-usb@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	Roger Quadros <rogerq@...com>,
	Benoît Cousson <b-cousson@...com>
Subject: [RFC PATCH 5/6] ARM: dts: omap3beagle-xm: Add idle state pins for USB host

Add the Idle state pins for USB host and enable WAKEUP on
DIR, DAT0-3, so that the PHY can wakeup the OMAP SoC from
sleep on any USB activity (e.g. remote wakeup or connect/disconnect).

CC: Benoît Cousson <b-cousson@...com>
Signed-off-by: Roger Quadros <rogerq@...com>
---
 arch/arm/boot/dts/omap3-beagle-xm.dts |   29 +++++++++++++++++++++++------
 1 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts b/arch/arm/boot/dts/omap3-beagle-xm.dts
index d3808ed..f1d56c2 100644
--- a/arch/arm/boot/dts/omap3-beagle-xm.dts
+++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
@@ -89,12 +89,7 @@
 };
 
 &omap3_pmx_core {
-	pinctrl-names = "default";
-	pinctrl-0 = <
-			&hsusbb2_pins
-	>;
-
-	hsusbb2_pins: pinmux_hsusbb2_pins {
+	hsusb2_pins: pinmux_hsusb2_pins {
 		pinctrl-single,pins = <
 			0x5c0 (PIN_OUTPUT | MUX_MODE3)		/* etk_d10.hsusb2_clk */
 			0x5c2 (PIN_OUTPUT | MUX_MODE3)		/* etk_d11.hsusb2_stp */
@@ -110,6 +105,25 @@
 			0x1ae (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_cs1.hsusb2_data3 */
 		>;
 	};
+
+	/* WAKEUP enabled on DIR, DAT0-3 */
+	hsusb2_idle_pins: pinmux_hsusb2_idle_pins {
+		pinctrl-single,pins = <
+			0x5c0 (PIN_OUTPUT | MUX_MODE3)		/* etk_d10.hsusb2_clk */
+			0x5c2 (PIN_OUTPUT | MUX_MODE3)		/* etk_d11.hsusb2_stp */
+			0x5c4 (PIN_INPUT_PULLDOWN | WAKEUP_EN | MUX_MODE3)	/* etk_d12.hsusb2_dir */
+			0x5c6 (PIN_INPUT_PULLDOWN | MUX_MODE3)			/* etk_d13.hsusb2_nxt */
+			0x5c8 (PIN_INPUT_PULLDOWN | WAKEUP_EN | MUX_MODE3)	/* etk_d14.hsusb2_data0 */
+			0x5cA (PIN_INPUT_PULLDOWN | WAKEUP_EN | MUX_MODE3)	/* etk_d15.hsusb2_data1 */
+			0x1a4 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi1_cs3.hsusb2_data2 */
+			0x1a6 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_clk.hsusb2_data7 */
+			0x1a8 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_simo.hsusb2_data4 */
+			0x1aa (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_somi.hsusb2_data5 */
+			0x1ac (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_cs0.hsusb2_data6 */
+			0x1ae (PIN_INPUT_PULLDOWN | WAKEUP_EN | MUX_MODE3)	/* mcspi2_cs1.hsusb2_data3 */
+		>;
+		interrupts = <77>; /* route padconf wakeup to EHCI IRQ */
+	};
 };
 
 &i2c1 {
@@ -181,6 +195,9 @@
 };
 
 &usbhshost {
+	pinctrl-names = "default", "idle";
+	pinctrl-0 = <&hsusb2_pins>;
+	pinctrl-1 = <&hsusb2_idle_pins>;
 	port2-mode = "ehci-phy";
 };
 
-- 
1.7.4.1

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