From: Nicolas Ferre <nicolas.ferre@atmel.com>
To: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>,
<linux-arm-kernel@lists.infradead.org>
Cc: <giometti@enneenne.com>, Bo Shen <voice.shen@atmel.com>,
Ludovic Desroches <ludovic.desroches@atmel.com>,
<linux-kernel@vger.kernel.org>,
Nicolas Ferre <nicolas.ferre@atmel.com>
Subject: [PATCH] ARM: at91/DT: at91sam9x5ek: fix USB host property to enable port C
Date: Wed, 3 Jul 2013 13:00:50 +0200 [thread overview]
Message-ID: <1372849250-14715-1-git-send-email-nicolas.ferre@atmel.com> (raw)
Device Tree "num-ports" property of USB host node has to be
set to maximum number of ports available.
The possibility to activate a particular port is done by specifying the proper
gpio configuration for its vbus.
This patch fixes the USB host node by configuring the 3 ports available on the
product and letting "port A" available for USB gadget usage.
Reported-by: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Bo Shen <voice.shen@atmel.com>
---
arch/arm/boot/dts/at91sam9x5ek.dtsi | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/at91sam9x5ek.dtsi b/arch/arm/boot/dts/at91sam9x5ek.dtsi
index b753855..49e3c45 100644
--- a/arch/arm/boot/dts/at91sam9x5ek.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5ek.dtsi
@@ -94,8 +94,9 @@
usb0: ohci@00600000 {
status = "okay";
- num-ports = <2>;
- atmel,vbus-gpio = <&pioD 19 GPIO_ACTIVE_LOW
+ num-ports = <3>;
+ atmel,vbus-gpio = <0 /* &pioD 18 GPIO_ACTIVE_LOW *//* Activate to have access to port A */
+ &pioD 19 GPIO_ACTIVE_LOW
&pioD 20 GPIO_ACTIVE_LOW
>;
};
--
1.8.2.2
next reply other threads:[~2013-07-03 11:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-03 11:00 Nicolas Ferre [this message]
2013-07-03 11:01 ` Jean-Christophe PLAGNIOL-VILLARD
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