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Commit 29c140b6 authored by Russell King's avatar Russell King
Browse files

ARM: sa1111: fix memory request/grant setup on PM events 



We weren't re-enabling the memory request/grant signals on resume,
causing DMA devices on the sa1111 to fail.

Acked-by: default avatarNicolas Pitre <nico@linaro.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent d65b4e98

arch/arm/common/sa1111.c

+11 −1
Original line number Diff line number Diff line
@@ -87,7 +87,8 @@ 
#define IRQ_S0_BVD1_STSCHG	(53)

#define IRQ_S1_BVD1_STSCHG	(54)



extern void __init sa1110_mb_enable(void);

extern void sa1110_mb_enable(void);

extern void sa1110_mb_disable(void);



/*

 * We keep the following data for the overall SA1111.  Note that the
@@ -926,6 +927,10 @@ static int sa1111_suspend(struct platform_device *dev, pm_message_t state) 


	spin_unlock_irqrestore(&sachip->lock, flags);



#ifdef CONFIG_ARCH_SA1100

	sa1110_mb_disable();

#endif



	return 0;

}
@@ -966,6 +971,11 @@ static int sa1111_resume(struct platform_device *dev) 
	 */

	sa1111_wake(sachip);



#ifdef CONFIG_ARCH_SA1100

	/* Enable the memory bus request/grant signals */

	sa1110_mb_enable();

#endif



	/*

	 * Only lock for write ops. Also, sa1111_wake must be called with

	 * released spinlock!