The patch titled
tmio_mmc: allow 2 byte requests in 4-bit mode
has been added to the -mm tree. Its filename is
tmio_mmc-allow-2-byte-requests-in-4-bit-mode.patch
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See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: tmio_mmc: allow 2 byte requests in 4-bit mode
From: Yusuke Goda <[email protected]>
Adjust the tmio_mmc block size check to accept 2-byte requests in 4-bit
mode. Tested with the SDHI hardware block included in sh7724.
Signed-off-by: Yusuke Goda <[email protected]>
Tested-by: Magnus Damm <[email protected]>
Acked-by: Magnus Damm <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
drivers/mmc/host/tmio_mmc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN
drivers/mmc/host/tmio_mmc.c~tmio_mmc-allow-2-byte-requests-in-4-bit-mode
drivers/mmc/host/tmio_mmc.c
--- a/drivers/mmc/host/tmio_mmc.c~tmio_mmc-allow-2-byte-requests-in-4-bit-mode
+++ a/drivers/mmc/host/tmio_mmc.c
@@ -660,8 +660,8 @@ static int tmio_mmc_start_data(struct tm
pr_debug("setup data transfer: blocksize %08x nr_blocks %d\n",
data->blksz, data->blocks);
- /* Hardware cannot perform 1 and 2 byte requests in 4 bit mode */
- if (data->blksz < 4 && host->mmc->ios.bus_width == MMC_BUS_WIDTH_4) {
+ /* Hardware cannot perform 1 byte requests in 4 bit mode */
+ if (data->blksz < 2 && host->mmc->ios.bus_width == MMC_BUS_WIDTH_4) {
pr_err("%s: %d byte block unsupported in 4 bit mode\n",
mmc_hostname(host->mmc), data->blksz);
return -EINVAL;
_
Patches currently in -mm which might be from [email protected] are
tmio_mmc-prevent-unexpected-status-clear.patch
tmio_mmc-allow-2-byte-requests-in-4-bit-mode.patch
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