linux-kernel - [PATCH 3/4] ARM: OMAP2: MUSB: Specify omap4 has mailbox

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Message-ID: <1358502045-27008-4-git-send-email-kishon@ti.com>
Date:	Fri, 18 Jan 2013 15:10:44 +0530
From:	Kishon Vijay Abraham I <kishon@...com>
To:	<rob.herring@...xeda.com>, <rob@...dley.net>, <tony@...mide.com>,
	<balbi@...com>, <b-cousson@...com>, <linux-usb@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-doc@...r.kernel.org>, <devicetree-discuss@...ts.ozlabs.org>
CC:	<grant.likely@...retlab.ca>, <linux@....linux.org.uk>,
	<gregkh@...uxfoundation.org>, <kishon@...com>
Subject: [PATCH 3/4] ARM: OMAP2: MUSB: Specify omap4 has mailbox

Added has_mailbox to the musb platform data to specify that omap uses
an external mailbox (in control module) to communicate with the musb
core during device connect and disconnect.

Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
---
 arch/arm/mach-omap2/usb-musb.c |    3 +++
 include/linux/usb/musb.h       |    2 ++
 2 files changed, 5 insertions(+)

diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index 7b33b37..9d27e3f 100644
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -85,6 +85,9 @@ void __init usb_musb_init(struct omap_musb_board_data *musb_board_data)
 	musb_plat.mode = board_data->mode;
 	musb_plat.extvbus = board_data->extvbus;
 
+	if (cpu_is_omap44xx())
+		musb_plat.has_mailbox = true;
+
 	if (soc_is_am35xx()) {
 		oh_name = "am35x_otg_hs";
 		name = "musb-am35x";
diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
index eb50525..053c268 100644
--- a/include/linux/usb/musb.h
+++ b/include/linux/usb/musb.h
@@ -99,6 +99,8 @@ struct musb_hdrc_platform_data {
 	/* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
 	u8		mode;
 
+	u8		has_mailbox:1;
+
 	/* for clk_get() */
 	const char	*clock;
 
-- 
1.7.9.5

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