diff --git a/[refs] b/[refs] index 3c2c1de1caf3..c1f17e29d2ab 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: b1c056d20caa6fdd3481b348567f1f91e98aaa4b +refs/heads/master: a50f18c70049a73bd663ff889ef10d1097fd53f9 diff --git a/trunk/arch/arm/plat-omap/dma.c b/trunk/arch/arm/plat-omap/dma.c index 50f8b4ad9a09..3df374055796 100644 --- a/trunk/arch/arm/plat-omap/dma.c +++ b/trunk/arch/arm/plat-omap/dma.c @@ -1848,9 +1848,22 @@ static int omap2_dma_handle_ch(int ch) printk(KERN_INFO "DMA synchronization event drop occurred with device " "%d\n", dma_chan[ch].dev_id); - if (unlikely(status & OMAP2_DMA_TRANS_ERR_IRQ)) + if (unlikely(status & OMAP2_DMA_TRANS_ERR_IRQ)) { printk(KERN_INFO "DMA transaction error with device %d\n", dma_chan[ch].dev_id); + if (cpu_class_is_omap2()) { + /* Errata: sDMA Channel is not disabled + * after a transaction error. So we explicitely + * disable the channel + */ + u32 ccr; + + ccr = dma_read(CCR(ch)); + ccr &= ~OMAP_DMA_CCR_EN; + dma_write(ccr, CCR(ch)); + dma_chan[ch].flags &= ~OMAP_DMA_ACTIVE; + } + } if (unlikely(status & OMAP2_DMA_SECURE_ERR_IRQ)) printk(KERN_INFO "DMA secure error with device %d\n", dma_chan[ch].dev_id);