Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4366dcc5 authored by Jaehoon Chung's avatar Jaehoon Chung Committed by Chris Ball
Browse files

mmc: dw_mmc: control the power-enable register 



When card is power-on/off, need to control the power-enable register.

Signed-off-by: default avatarJaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: default avatarJames Hogan <james.hogan@imgtec.com>
Acked-by: default avatarSeungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent e065162a

drivers/mmc/host/dw_mmc.c

+6 −0
Original line number Diff line number Diff line
@@ -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;