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Commit 6b086bde authored by Ulf Hansson's avatar Ulf Hansson Committed by Chris Ball
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mmc: core: Extend shutdown sequence to handle bus operations 



By adding an optional .shutdown callback to the bus_ops struct we
provide the possibility to let each bus type handle it's shutdown
requirements.

Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent 76287748

drivers/mmc/core/bus.c

+9 −0
Original line number Diff line number Diff line
@@ -126,8 +126,17 @@ static void mmc_bus_shutdown(struct device *dev) 
{

	struct mmc_driver *drv = to_mmc_driver(dev->driver);

	struct mmc_card *card = mmc_dev_to_card(dev);

	struct mmc_host *host = card->host;

	int ret;



	drv->shutdown(card);



	if (host->bus_ops->shutdown) {

		ret = host->bus_ops->shutdown(host);

		if (ret)

			pr_warn("%s: error %d during shutdown\n",

				mmc_hostname(host), ret);

	}

}



#ifdef CONFIG_PM_SLEEP

drivers/mmc/core/core.h

+1 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ struct mmc_bus_ops { 
	int (*power_save)(struct mmc_host *);

	int (*power_restore)(struct mmc_host *);

	int (*alive)(struct mmc_host *);

	int (*shutdown)(struct mmc_host *);

};



void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);