When card is power-on/off, need to control the power-enable register. Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> --- drivers/mmc/host/dw_mmc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index a443820..a32aab5 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -821,11 +821,17 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) /* Power up slot */ if (slot->host->pdata->setpower) slot->host->pdata->setpower(slot->id, mmc->ocr_avail); + regs = mci_readl(slot->host, PWREN); + regs |= (1 << slot->id); + mci_writel(slot->host, PWREN, regs); break; case MMC_POWER_OFF: /* Power down slot */ if (slot->host->pdata->setpower) slot->host->pdata->setpower(slot->id, 0); + regs = mci_readl(slot->host, PWREN); + regs &= ~(1 << slot->id); + mci_writel(slot->host, PWREN, regs); break; default: break; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
