From f3584e5e6fd7abda4ef4a7aec9acd9d46387b8ab Mon Sep 17 00:00:00 2001 From: Venkatraman S Date: Tue, 10 Aug 2010 18:01:54 -0700 Subject: [PATCH] omap hsmmc: fix processing of all dma interrupts as block completion If other informative interrupts are enabled for the DMA channel used by hsmmc, those are incorrectly treated as block completion. This patch lets only the block completion interrupt to be processed. Signed-off-by: Venkatraman S Acked-by: Madhusudhan Chikkature Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/mmc/host/omap_hsmmc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index ee1a309..dc57ef6 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1273,8 +1273,11 @@ static void omap_hsmmc_dma_cb(int lch, u16 ch_status, void *cb_data) struct mmc_data *data = host->mrq->data; int dma_ch, req_in_progress; - if (ch_status & OMAP2_DMA_MISALIGNED_ERR_IRQ) - dev_dbg(mmc_dev(host->mmc), "MISALIGNED_ADRS_ERR\n"); + if (!(ch_status & OMAP_DMA_BLOCK_IRQ)) { + dev_warn(mmc_dev(host->mmc), "unexpected dma status %x\n", + ch_status); + return; + } spin_lock(&host->irq_lock); if (host->dma_ch < 0) { -- 2.7.4