From 6584cb8825e4c74915a5a13756b1902523391d78 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 6 Jul 2011 11:18:33 +0200 Subject: ARM i.MX dma: Fix burstsize settings dmaengine expects the maxburst parameter in words, not bytes. The imxdma driver and its users do this wrong. Fix this. As a side note the imx-pcm-dma-mx2 driver was 'fixed' to work with imx-dma. This broke the driver with imx-sdma support which correctly takes the maxburst parameter in words. This patch puts the sdma based sound back to work. Signed-off-by: Sascha Hauer --- drivers/mmc/host/mxcmmc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/mmc/host/mxcmmc.c') diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c index cc20e02..14aa213 100644 --- a/drivers/mmc/host/mxcmmc.c +++ b/drivers/mmc/host/mxcmmc.c @@ -715,13 +715,13 @@ static void mxcmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) int burstlen, ret; /* - * use burstlen of 64 in 4 bit mode (--> reg value 0) - * use burstlen of 16 in 1 bit mode (--> reg value 16) + * use burstlen of 64 (16 words) in 4 bit mode (--> reg value 0) + * use burstlen of 16 (4 words) in 1 bit mode (--> reg value 16) */ if (ios->bus_width == MMC_BUS_WIDTH_4) - burstlen = 64; - else burstlen = 16; + else + burstlen = 4; if (mxcmci_use_dma(host) && burstlen != host->burstlen) { host->burstlen = burstlen; -- cgit v1.1