diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/core.c | 4 | ||||
| -rw-r--r-- | drivers/mmc/core/host.c | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 42cfcb64abe0..9a769edbabe0 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1660,7 +1660,7 @@ void mmc_power_up(struct mmc_host *host, u32 ocr) * This delay should be sufficient to allow the power supply * to reach the minimum voltage. */ - mmc_delay(10); + mmc_delay(host->ios.power_delay_ms); mmc_pwrseq_post_power_on(host); @@ -1673,7 +1673,7 @@ void mmc_power_up(struct mmc_host *host, u32 ocr) * This delay must be at least 74 clock sizes, or 1 ms, or the * time required to reach a stable voltage. */ - mmc_delay(10); + mmc_delay(host->ios.power_delay_ms); } void mmc_power_off(struct mmc_host *host) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index da08a17fbf6c..c57ffff18e37 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -343,6 +343,9 @@ int mmc_of_parse(struct mmc_host *host) host->dsr_req = 0; } + device_property_read_u32(dev, "post-power-on-delay-ms", + &host->ios.power_delay_ms); + return mmc_pwrseq_alloc(host); } @@ -408,6 +411,7 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) host->max_blk_count = PAGE_SIZE / 512; host->fixed_drv_type = -EINVAL; + host->ios.power_delay_ms = 10; return host; } |