The values read from the channel map always also contain the DMA_CH_VALID (= 1<<31) setting, which should not get written into the register, even if this bit is unused.
Signed-off-by: Heiko Stuebner <[email protected]> --- arch/arm/mach-s3c24xx/dma-s3c2443.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-s3c24xx/dma-s3c2443.c b/arch/arm/mach-s3c24xx/dma-s3c2443.c index 000e4c6..e992a7c 100644 --- a/arch/arm/mach-s3c24xx/dma-s3c2443.c +++ b/arch/arm/mach-s3c24xx/dma-s3c2443.c @@ -130,7 +130,8 @@ static struct s3c24xx_dma_map __initdata s3c2443_dma_mappings[] = { static void s3c2443_dma_select(struct s3c2410_dma_chan *chan, struct s3c24xx_dma_map *map) { - writel(map->channels[0] | S3C2443_DMAREQSEL_HW, + unsigned long chsel = map->channels[0] & (~DMA_CH_VALID); + writel(chsel | S3C2443_DMAREQSEL_HW, chan->regs + S3C2443_DMA_DMAREQSEL); } -- 1.7.2.3 -- 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
