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authorMichał Mirosław <mirq-linux@rere.qmqm.pl>2017-08-14 22:00:24 +0200
committerUlf Hansson <ulf.hansson@linaro.org>2017-08-30 15:03:34 +0200
commit98f94ea6d823a2605a6cbe16c943e81abd9e8690 (patch)
treef5f9cd0ce457e59d79c404bc6ac809b47940061e /drivers/mmc
parent34292311f0195b2113a5f30e5bea33e4c2668315 (diff)
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>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci.c5
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;