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| author | Michał Mirosław <mirq-linux@rere.qmqm.pl> | 2017-08-14 22:00:24 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-08-30 15:03:34 +0200 |
| commit | 98f94ea6d823a2605a6cbe16c943e81abd9e8690 (patch) | |
| tree | f5f9cd0ce457e59d79c404bc6ac809b47940061e | |
| parent | 34292311f0195b2113a5f30e5bea33e4c2668315 (diff) | |
| download | linux-stable-98f94ea6d823a2605a6cbe16c943e81abd9e8690.tar.gz linux-stable-98f94ea6d823a2605a6cbe16c943e81abd9e8690.tar.bz2 linux-stable-98f94ea6d823a2605a6cbe16c943e81abd9e8690.zip | |
mmc: sdhci: key 8BITBUS bit off MMC_CAP_8_BIT_DATA
Hosts supporting 8-bit bus are marked accordingly. If MMC_CAP_8_BIT_DATA
is not among host capabilities, 8BITBUS bit will never be set and it
is not cleared in case some non-SDHCI3 host uses it for something else.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index a1ad2ddadca1..1fda50855e31 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1544,10 +1544,9 @@ void sdhci_set_bus_width(struct sdhci_host *host, int width) ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); if (width == MMC_BUS_WIDTH_8) { ctrl &= ~SDHCI_CTRL_4BITBUS; - if (host->version >= SDHCI_SPEC_300) - ctrl |= SDHCI_CTRL_8BITBUS; + ctrl |= SDHCI_CTRL_8BITBUS; } else { - if (host->version >= SDHCI_SPEC_300) + if (host->mmc->caps & MMC_CAP_8_BIT_DATA) ctrl &= ~SDHCI_CTRL_8BITBUS; if (width == MMC_BUS_WIDTH_4) ctrl |= SDHCI_CTRL_4BITBUS; |