diff options
| author | Marek Vasut <marex@denx.de> | 2020-04-16 19:36:47 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-05-28 12:20:58 +0300 |
| commit | 9cbe0fc8cd9c156ff187231dbb38b02ee20fc8c6 (patch) | |
| tree | e2e52db264f575f6d6a7c17e54e9be1509c46648 /drivers/mmc/host/meson-gx-mmc.c | |
| parent | 098c408b040d49158dc6aea52db7493187ac5e09 (diff) | |
| download | linux-9cbe0fc8cd9c156ff187231dbb38b02ee20fc8c6.tar.xz | |
mmc: host: Prepare host drivers for mmc_regulator_set_vqmmc() returning > 0
Patch all drivers which use mmc_regulator_set_vqmmc() and prepare them for
the fact that mmc_regulator_set_vqmmc() can return a value > 0, which would
happen if the signal voltage switch did NOT happen, because the voltage was
already set correctly.
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20200416163649.336967-1-marex@denx.de
[Ulf: Re-worked/simplified the code a bit]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/meson-gx-mmc.c')
| -rw-r--r-- | drivers/mmc/host/meson-gx-mmc.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c index 35400cf2a2e4..7eb38d7482c6 100644 --- a/drivers/mmc/host/meson-gx-mmc.c +++ b/drivers/mmc/host/meson-gx-mmc.c @@ -1004,6 +1004,8 @@ static int meson_mmc_card_busy(struct mmc_host *mmc) static int meson_mmc_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios) { + int ret; + /* vqmmc regulator is available */ if (!IS_ERR(mmc->supply.vqmmc)) { /* @@ -1013,7 +1015,8 @@ static int meson_mmc_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios) * to 1.8v. Please make sure the regulator framework is aware * of your own regulator constraints */ - return mmc_regulator_set_vqmmc(mmc, ios); + ret = mmc_regulator_set_vqmmc(mmc, ios); + return ret < 0 ? ret : 0; } /* no vqmmc regulator, assume fixed regulator at 3/3.3V */ |