tree f7cc3f4ff489b2536c6b038b52122e9413f906e7
parent ad57c39482a91cc7e377b0356d130810a78167fd
author Mika Westerberg <ext-mika.1.westerberg@nokia.com> 1273863925 -0700
committer Tony Lindgren <tony@atomide.com> 1274379399 -0700

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>