Patchwork [2/4] mmc: mxs-mmc: fix the dma_transfer_direction migration

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Submitter Shawn Guo
Date Dec. 13, 2011, 3:48 p.m.
Message ID <1323791286-29574-3-git-send-email-shawn.guo@linaro.org>
Download mbox | patch
Permalink /patch/131120/
State New
Headers show

Comments

Shawn Guo - Dec. 13, 2011, 3:48 p.m.
The commit 05f5799 (mmc-host: move to dma_transfer_direction) left out
the DMA_NONE, in turn breaks the driver as below.

[    0.650000] mxs-mmc mxs-mmc.0: initialized
[    0.650000] mxs-mmc mxs-mmc.1: initialized
[    0.690000] mxs-dma mxs-dma-apbh: maximum bytes for sg entry exceeded: -55906
7475 > 65280
[    0.690000] mxs-mmc mxs-mmc.0: mxs_mmc_ac: failed to prep dma

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 drivers/mmc/host/mxs-mmc.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

Patch

diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 571c9ff..93c18aa 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -357,6 +357,7 @@  static void mxs_mmc_bc(struct mxs_mmc_host *host)
 	host->ssp_pio_words[1] = cmd0;
 	host->ssp_pio_words[2] = cmd1;
 	host->dma_dir = DMA_NONE;
+	host->slave_dirn = DMA_TRANS_NONE;
 	desc = mxs_mmc_prep_dma(host, 0);
 	if (!desc)
 		goto out;
@@ -396,6 +397,7 @@  static void mxs_mmc_ac(struct mxs_mmc_host *host)
 	host->ssp_pio_words[1] = cmd0;
 	host->ssp_pio_words[2] = cmd1;
 	host->dma_dir = DMA_NONE;
+	host->slave_dirn = DMA_TRANS_NONE;
 	desc = mxs_mmc_prep_dma(host, 0);
 	if (!desc)
 		goto out;
@@ -514,6 +516,7 @@  static void mxs_mmc_adtc(struct mxs_mmc_host *host)
 	host->ssp_pio_words[1] = cmd0;
 	host->ssp_pio_words[2] = cmd1;
 	host->dma_dir = DMA_NONE;
+	host->slave_dirn = DMA_TRANS_NONE;
 	desc = mxs_mmc_prep_dma(host, 0);
 	if (!desc)
 		goto out;