From: Mika Westerberg <ext-mika.1.westerberg@nokia.com>
Date: Tue, 4 May 2010 06:32:29 +0000 (+0300)
Subject: OMAP2/3/4: DMA: disable channel interrupts in omap_init_dma()
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=00d5c9719f77f5259bc323428e55782c2e7dbd6c;p=pandora-kernel.git

OMAP2/3/4: DMA: disable channel interrupts in omap_init_dma()

If we are softbooting another kernel using kexec, DMA controller state is not
known when we are performing omap_init_dma(). It is possible that some DMA
channels are already active. For example after kexec we get:

<4>IRQ 0020 for non-allocated DMAchannel 5
<4>IRQ 0020 for non-allocated DMAchannel 5
<4>IRQ 0020 for non-allocated DMAchannel 5
<4>IRQ 0020 for non-allocated DMAchannel 5
<4>IRQ 0020 for non-allocated DMAchannel 5

To prevent any weird things happening, we disable all channel interrupts during
init.

Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

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