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| author | Mika Westerberg <ext-mika.1.westerberg@nokia.com> | 2010-05-14 12:05:25 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-05-20 11:16:39 -0700 |
| commit | ada8d4a5e2ed9de8a5a58788c4b6a4c8103e0f8d (patch) | |
| tree | f7cc3f4ff489b2536c6b038b52122e9413f906e7 /arch/arm/mach-sa1100 | |
| parent | ad57c39482a91cc7e377b0356d130810a78167fd (diff) | |
| download | blackbird-op-linux-ada8d4a5e2ed9de8a5a58788c4b6a4c8103e0f8d.tar.gz blackbird-op-linux-ada8d4a5e2ed9de8a5a58788c4b6a4c8103e0f8d.zip | |
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>
Diffstat (limited to 'arch/arm/mach-sa1100')
0 files changed, 0 insertions, 0 deletions
