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| author | Takashi Iwai <tiwai@suse.de> | 2010-12-08 10:04:30 +0100 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-01-08 22:48:04 -0500 |
| commit | 8f230f454fe04ba326ffaead3a6b88dcf44eaf4b (patch) | |
| tree | 9f5c43b48aa84131f7b94b44e4d500e0ec271ba0 /drivers/mmc/core/sdio.c | |
| parent | 150ee73d1b35936aafc5fd3b39a7291b1f66de07 (diff) | |
| download | op-kernel-dev-8f230f454fe04ba326ffaead3a6b88dcf44eaf4b.zip op-kernel-dev-8f230f454fe04ba326ffaead3a6b88dcf44eaf4b.tar.gz | |
mmc: Add support for JMicron 388 SD/MMC controller
JMicron 388 SD/MMC combo controller supports the 1.8V low-voltage for
SD, but MMC doesn't work with the low-voltage, resulting in an error
at probing.
This patch adds the support for multiple voltage mask per device type,
so that SD works with 1.8V while MMC forces 3.3V. Here new ocr_avail_*
fields for each device are introduced, so that the actual OCR mask is
switched dynamically.
Also, the restriction of low-voltage in core/sd.c is removed when the
bit is allowed explicitly via ocr_avail_sd mask.
This patch was rewritten from scratch based on Aries' original code.
Signed-off-by: Aries Lee <arieslee@jmicron.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/core/sdio.c')
| -rw-r--r-- | drivers/mmc/core/sdio.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index efef5f9..c18810a 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -700,6 +700,8 @@ int mmc_attach_sdio(struct mmc_host *host, u32 ocr) WARN_ON(!host->claimed); mmc_attach_bus(host, &mmc_sdio_ops); + if (host->ocr_avail_sdio) + host->ocr_avail = host->ocr_avail_sdio; /* * Sanity check the voltages that the card claims to |
