From mboxrd@z Thu Jan 1 00:00:00 1970 From: jassisinghbrar@gmail.com (Jassi Brar) Date: Mon, 3 Jan 2011 10:53:35 +0900 Subject: [PATCH] ARM: S3C64xx: Clear DMA_HALT upon start Message-ID: <1294019615-18532-1-git-send-email-jassisinghbrar@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Jassi Brar The stop function sets the DMA_HALT bit, which prevents the DMA transfer to resume after stop, for example during audio PAUSE/PLAY cycle. Clear the HALT bit during start. Signed-off-by: Jassi Brar --- arch/arm/mach-s3c64xx/dma.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-s3c64xx/dma.c b/arch/arm/mach-s3c64xx/dma.c index e7d03ab..d9aa072 100644 --- a/arch/arm/mach-s3c64xx/dma.c +++ b/arch/arm/mach-s3c64xx/dma.c @@ -212,6 +212,7 @@ static int s3c64xx_dma_start(struct s3c2410_dma_chan *chan) config = readl(chan->regs + PL080S_CH_CONFIG); config |= PL080_CONFIG_ENABLE; + config &= ~PL080_CONFIG_HALT; pr_debug("%s: writing config %08x\n", __func__, config); writel(config, chan->regs + PL080S_CH_CONFIG); -- 1.6.2.5