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

Commit 9e7861f5 authored by Alexandre Belloni's avatar Alexandre Belloni Committed by Chris Ball
Browse files

mmc: atmel-mci: add vmmc-supply support 



Other MMC hosts handle a regulator named vmmc-supply that allows to power
the MMC card or SDIO device before communicating on the bus.

Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Acked-by: default avatarLudovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: default avatarChris Ball <chris@printf.net>
parent 390145f9

drivers/mmc/host/atmel-mci.c

+7 −0
Original line number Diff line number Diff line
@@ -1402,8 +1402,14 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) 
		clk_unprepare(host->mck);



	switch (ios->power_mode) {

	case MMC_POWER_OFF:

		if (!IS_ERR(mmc->supply.vmmc))

			mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);

		break;

	case MMC_POWER_UP:

		set_bit(ATMCI_CARD_NEED_INIT, &slot->flags);

		if (!IS_ERR(mmc->supply.vmmc))

			mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);

		break;

	default:

		/*
@@ -2215,6 +2221,7 @@ static int __init atmci_init_slot(struct atmel_mci *host, 
	}



	host->slot[id] = slot;

	mmc_regulator_get_supply(mmc);

	mmc_add_host(mmc);



	if (gpio_is_valid(slot->detect_pin)) {