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omap hsmmc: fix processing of all dma interrupts as block completion

PATCH In review [email protected] 1 participant 1 message Aug 11, 2010

Subsystems (2)
MMC, SD and SDIO OMAP hs MMC support
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PATCH 48/177 omap hsmmc: fix processing of all dma interrupts as block completion

From: Venkatraman S <[email protected]>

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 <[email protected]>
Acked-by Madhusudhan Chikkature <[email protected]>
Cc <[email protected]>
Signed-off-by Andrew Morton <[email protected]>

---

 drivers/mmc/host/omap_hsmmc.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
drivers/mmc/host/omap_hsmmc.c renamed from drivers/mmc/host/omap_hsmmc.c~omap-hsmmc-fix-processing-of-all-dma-interrupts-as-block-completion +5 -2
diff -puN drivers/mmc/host/omap_hsmmc.c~omap-hsmmc-fix-processing-of-all-dma-interrupts-as-block-completion drivers/mmc/host/omap_hsmmc.c
@@ -1273,8 +1273,11 @@ static void omap_hsmmc_dma_cb(int lch, u
 	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) {

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