linux-kernel - [131/205] USB: MUSB: make non-OMAP platforms build with CONFIG

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Message-Id: <20100730175145.887990462@clark.site>
Date:	Fri, 30 Jul 2010 10:52:28 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Sergei Shtylyov <sshtylyov@...mvista.com>,
	Ajay Kumar Gupta <ajay.gupta@...com>,
	Felipe Balbi <felipe.balbi@...ia.com>
Subject: [131/205] USB: MUSB: make non-OMAP platforms build with CONFIG_PM=y

2.6.34-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Sergei Shtylyov <sshtylyov@...mvista.com>

commit 9297688a9257d73956d4bba484d9dd331ca72c25 upstream.

Attempt to build MUSB driver with CONFIG_PM=y (e.g. in the OTG mode) on DaVinci
results in these link errors:

drivers/built-in.o: In function `musb_restore_context':
led-triggers.c:(.text+0x714d8): undefined reference to
`musb_platform_restore_context'
drivers/built-in.o: In function `musb_save_context':
led-triggers.c:(.text+0x71788): undefined reference to
`musb_platform_save_context'

This turned out to be caused by commit 9957dd97ec5e98dd334f87ade1d9a0b24d1f86eb
(usb: musb: Fix compile error for omaps for musb_hdrc). Revert it, taking into
account the rename of CONFIG_ARCH_OMAP34XX into CONFIG_ARCH_OMAP3 (which that
commit fixed in a completely inappropriate way) and the recent addition of
OMAP4 support.

Signed-off-by: Sergei Shtylyov <sshtylyov@...mvista.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@...com>
Acked-by: Felipe Balbi <felipe.balbi@...ia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/usb/musb/musb_core.h |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -469,7 +469,8 @@ struct musb_csr_regs {
 
 struct musb_context_registers {
 
-#ifdef CONFIG_PM
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
+    defined(CONFIG_ARCH_OMAP4)
 	u32 otg_sysconfig, otg_forcestandby;
 #endif
 	u8 power;
@@ -483,7 +484,8 @@ struct musb_context_registers {
 	struct musb_csr_regs index_regs[MUSB_C_NUM_EPS];
 };
 
-#ifdef CONFIG_PM
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
+    defined(CONFIG_ARCH_OMAP4)
 extern void musb_platform_save_context(struct musb *musb,
 		struct musb_context_registers *musb_context);
 extern void musb_platform_restore_context(struct musb *musb,


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