On Wed, 13 Jan 2021 at 11:57, <ricky_wu@xxxxxxxxxxx> wrote: > > From: Ricky Wu <ricky_wu@xxxxxxxxxxx> > > Make sure voltage below 0.5V before power on > when do power cycle > At mmc-core recognition card phase will do > power cycle quickly so our device need at least 100ms > to make voltage down to below 0.5V > > Signed-off-by: Ricky Wu <ricky_wu@xxxxxxxxxxx> Applied for next, by amending the changelog a bit, thanks! Kind regards Uffe > --- > drivers/mmc/host/rtsx_pci_sdmmc.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c > index e6f5bbce5685..0e5043a03965 100644 > --- a/drivers/mmc/host/rtsx_pci_sdmmc.c > +++ b/drivers/mmc/host/rtsx_pci_sdmmc.c > @@ -906,6 +906,8 @@ static int sd_power_on(struct realtek_pci_sdmmc *host) > if (host->power_state == SDMMC_POWER_ON) > return 0; > > + msleep(100); > + > rtsx_pci_init_cmd(pcr); > rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_SELECT, 0x07, SD_MOD_SEL); > rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_SHARE_MODE, > -- > 2.17.1 >
