diff options
| author | Ulf Hansson <ulf.hansson@linaro.org> | 2022-03-03 17:51:51 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2022-03-15 10:25:21 +0100 |
| commit | 23e1b8c15b3ab402bc422338073afc7cf2351788 (patch) | |
| tree | e5ce056662a7d52f74eb241c8a34dd50a807fcaa /drivers/mmc/core/mmc.c | |
| parent | d6c9219ca1139b74541b2a98cee47a3426d754a9 (diff) | |
mmc: core: Drop HS400 caps unless 8-bit bus is supported too
When mmc_select_hs400es() tries to switch to the HS400 ES mode, it may bail
out early if the host doesn't support an 8-bit buswidth, as it's required
for the HS400 mode.
To improve the situation, let's instead drop the HS400 bits from the
capability field if the 8-bit bus isn't supported. In this way, we allow
the mmc initialization to continue by trying a lower speed mode.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20220303165151.129806-1-ulf.hansson@linaro.org
Diffstat (limited to 'drivers/mmc/core/mmc.c')
| -rw-r--r-- | drivers/mmc/core/mmc.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 3f5d0d7c021c..e7ea45386c22 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1355,11 +1355,6 @@ static int mmc_select_hs400es(struct mmc_card *card) int err = -EINVAL; u8 val; - if (!(host->caps & MMC_CAP_8_BIT_DATA)) { - err = -ENOTSUPP; - goto out_err; - } - if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_2V) err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120); |