On Sun, Aug 15, 2010 at 10:28 PM, Jassi Brar <[email protected]> wrote: > On Mon, May 31, 2010 at 8:34 PM, Maurus Cuelenaere > <[email protected]> wrote: >> When a DMA channel is freed, its pending requests should be flushed and the >> channel should be halted. This patch ensures that happens. >> >> Signed-off-by: Maurus Cuelenaere <[email protected]> >> --- >> arch/arm/mach-s3c64xx/dma.c | 3 ++- >> 1 files changed, 2 insertions(+), 1 deletions(-) >> >> diff --git a/arch/arm/mach-s3c64xx/dma.c b/arch/arm/mach-s3c64xx/dma.c >> index 1fd9d0c..e1f22af 100644 >> --- a/arch/arm/mach-s3c64xx/dma.c >> +++ b/arch/arm/mach-s3c64xx/dma.c >> @@ -560,7 +560,8 @@ int s3c2410_dma_free(unsigned int channel, struct >> s3c2410_dma_client *client) >> channel, chan->client, client); >> } >> >> - /* sort out stopping and freeing the channel */ >> + s3c64xx_dma_flush(chan); >> + s3c64xx_dma_stop(chan); > > I think, the order should be reverted.
Though it's a matter of S3C DMA API spec. Shouldn't the client be made to explicitly do S3C2410_DMAOP_FLUSH a pending req before freeing the channel? If so, the patch may not be needed. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
