diff options
| -rw-r--r-- | drivers/mmc/host/rtsx_usb_sdmmc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c index b750e2166d92..591d37206654 100644 --- a/drivers/mmc/host/rtsx_usb_sdmmc.c +++ b/drivers/mmc/host/rtsx_usb_sdmmc.c @@ -1014,6 +1014,7 @@ static void sd_set_power_mode(struct rtsx_usb_sdmmc *host, unsigned char power_mode) { int err; + struct rtsx_ucr *ucr = host->ucr; if (power_mode == host->power_mode) return; @@ -1031,9 +1032,13 @@ static void sd_set_power_mode(struct rtsx_usb_sdmmc *host, err = sd_power_on(host); if (err) dev_dbg(sdmmc_dev(host), "power-on (err = %d)\n", err); + /* issue the clock signals to card at least 74 clocks */ + rtsx_usb_write_register(ucr, SD_BUS_STAT, SD_CLK_TOGGLE_EN, SD_CLK_TOGGLE_EN); break; case MMC_POWER_ON: + /* stop to send the clock signals */ + rtsx_usb_write_register(ucr, SD_BUS_STAT, SD_CLK_TOGGLE_EN, 0x00); case MMC_POWER_UNDEFINED: break; |