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
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
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 <yusuke.goda.sx@xxxxxxxxxxx>
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 <yusuke.goda.sx@xxxxxxxxxxx>
Tested-by: Magnus Damm <damm@xxxxxxxxxxxxx>
Acked-by: Magnus Damm <damm@xxxxxxxxxxxxx>
Cc: <linux-mmc@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
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 yusuke.goda.sx@xxxxxxxxxxx are
tmio_mmc-prevent-unexpected-status-clear.patch
tmio_mmc-allow-2-byte-requests-in-4-bit-mode.patch
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
