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| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2013-01-25 16:38:27 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-01-27 12:17:28 +0100 |
| commit | 20615ac8c9ea6ef14ee31bb01cfd8f9d0e9fbaef (patch) | |
| tree | 3493546b8d84521b07b6b718fee2c1038d497fa7 /drivers/mci/mci-core.c | |
| parent | 456fae022798fd9142a0ac255890e1622463e10c (diff) | |
| download | barebox-20615ac8c9ea6ef14ee31bb01cfd8f9d0e9fbaef.tar.gz barebox-20615ac8c9ea6ef14ee31bb01cfd8f9d0e9fbaef.tar.xz | |
mci: add card_write_protected
Currently there is no common way for the mci host driver to tell
that thee car is write protected. This adds a card_write_protected callback
which is used by the framework to tell whether it's protected or not.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/mci/mci-core.c')
| -rw-r--r-- | drivers/mci/mci-core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c index fd052f16da..a269aee4e8 100644 --- a/drivers/mci/mci-core.c +++ b/drivers/mci/mci-core.c @@ -1111,8 +1111,14 @@ static int __maybe_unused mci_sd_write(struct block_device *blk, const void *buffer, int block, int num_blocks) { struct mci *mci = container_of(blk, struct mci, blk); + struct mci_host *host = mci->host; int rc; + if (host->card_write_protected && host->card_write_protected(host)) { + dev_err(mci->mci_dev, "card write protected\n"); + return -EPERM; + } + dev_dbg(mci->mci_dev, "%s: Write %d block(s), starting at %d\n", __func__, num_blocks, block); |