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| author | Michael Tretter <m.tretter@pengutronix.de> | 2021-06-16 09:39:53 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2021-06-16 09:52:13 +0200 |
| commit | 2778c17f92fbb5ea2451f62ebdd6a74afc938cb2 (patch) | |
| tree | 32ae002e478e398aaf26c5fd2c9763993e9b701d /drivers | |
| parent | 0d1ad596030009864f1a97a5e108f97666ac82a5 (diff) | |
| download | barebox-2778c17f92fbb5ea2451f62ebdd6a74afc938cb2.tar.gz barebox-2778c17f92fbb5ea2451f62ebdd6a74afc938cb2.tar.xz | |
mci: mci-core: respect disable-wp property
Systems without write-protect pin should ignore the write protect logic
and assume that an SD card is always read-write. This is expressed by
the disable-wp dt property.
Respect the disable-wp property and don't call the write protection
check in these cases.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Link: https://lore.barebox.org/20210616073957.1872965-2-m.tretter@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mci/mci-core.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c index a160b98894..a094f3cbf5 100644 --- a/drivers/mci/mci-core.c +++ b/drivers/mci/mci-core.c @@ -1358,7 +1358,8 @@ static int __maybe_unused mci_sd_write(struct block_device *blk, mci_blk_part_switch(part); - if (host->card_write_protected && host->card_write_protected(host)) { + if (!host->disable_wp && + host->card_write_protected && host->card_write_protected(host)) { dev_err(&mci->dev, "card write protected\n"); return -EPERM; } @@ -2016,6 +2017,7 @@ void mci_of_parse_node(struct mci_host *host, host->non_removable = of_property_read_bool(np, "non-removable"); host->no_sd = of_property_read_bool(np, "no-sd"); + host->disable_wp = of_property_read_bool(np, "disable-wp"); } void mci_of_parse(struct mci_host *host) |