| commit | 06e8077b556a372871c04dd68f47e8c25e9ca348 | |
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | |
| Fri, 9 Dec 2011 21:38:00 +0000 (9 13:38 -0800) | ||
| committer | Tony Lindgren <tony@atomide.com> | |
| Fri, 9 Dec 2011 21:38:00 +0000 (9 13:38 -0800) | ||
| tree | b792a9ad2ef20d6e837c6b1749ef817c6286b44e | treesnapshot (tar.gz zip) |
| parent | 7ba966804f58ccd81375827a71222efaa131aa70 | commitdiff |
ARM: OMAP2+: DMA: Workaround for invalid destination position
If the DMA destination position has been asked before the
first actual data transfer has been done, the CDAC
register still contains 0 (it is initialized to 0 at
omsp_dma_start).
If CDAC == 0, return the programmed start address.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
If the DMA destination position has been asked before the
first actual data transfer has been done, the CDAC
register still contains 0 (it is initialized to 0 at
omsp_dma_start).
If CDAC == 0, return the programmed start address.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
| arch/arm/plat-omap/dma.c | diffblobblamehistory |