diff options
| author | Ulf Hansson <ulf.hansson@linaro.org> | 2013-06-10 17:03:40 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2013-06-27 18:39:18 +0200 |
| commit | 7628774851751e55362ec7d9d57c9334e656a655 (patch) | |
| tree | 54a8d24423250ceec0fd3468aeef20465941085a | |
| parent | mmc: core: Initiate suspend|resume from mmc bus instead of mmc host (diff) | |
| download | linux-7628774851751e55362ec7d9d57c9334e656a655.tar.xz linux-7628774851751e55362ec7d9d57c9334e656a655.zip | |
mmc: core: Handle card shutdown from mmc_bus
Considering shutdown of the card, the responsibility to initate this
sequence shall be driven from the mmc_bus.
This patch enables the mmc_bus to handle this sequence properly. A new
.shutdown callback is added in the mmc_driver struct which is used to
shutdown the blk device.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
| -rw-r--r-- | drivers/mmc/card/block.c | 15 | ||||
| -rw-r--r-- | drivers/mmc/card/mmc_test.c | 5 | ||||
| -rw-r--r-- | drivers/mmc/core/bus.c | 9 | ||||
| -rw-r--r-- | include/linux/mmc/card.h | 1 |
4 files changed, 28 insertions, 2 deletions
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 5411bf447369..cd0b7f4a1ff2 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -2403,8 +2403,7 @@ static void mmc_blk_remove(struct mmc_card *card) mmc_set_drvdata(card, NULL); } -#ifdef CONFIG_PM -static int mmc_blk_suspend(struct mmc_card *card) +static int _mmc_blk_suspend(struct mmc_card *card) { struct mmc_blk_data *part_md; struct mmc_blk_data *md = mmc_get_drvdata(card); @@ -2419,6 +2418,17 @@ static int mmc_blk_suspend(struct mmc_card *card) return 0; } +static void mmc_blk_shutdown(struct mmc_card *card) +{ + _mmc_blk_suspend(card); +} + +#ifdef CONFIG_PM +static int mmc_blk_suspend(struct mmc_card *card) +{ + return _mmc_blk_suspend(card); +} + static int mmc_blk_resume(struct mmc_card *card) { struct mmc_blk_data *part_md; @@ -2451,6 +2461,7 @@ static struct mmc_driver mmc_driver = { .remove = mmc_blk_remove, .suspend = mmc_blk_suspend, .resume = mmc_blk_resume, + .shutdown = mmc_blk_shutdown, }; static int __init mmc_blk_init(void) diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c index 759714ed6bee..a69df5216274 100644 --- a/drivers/mmc/card/mmc_test.c +++ b/drivers/mmc/card/mmc_test.c @@ -3025,12 +3025,17 @@ static void mmc_test_remove(struct mmc_card *card) mmc_test_free_dbgfs_file(card); } +static void mmc_test_shutdown(struct mmc_card *card) +{ +} + static struct mmc_driver mmc_driver = { .drv = { .name = "mmc_test", }, .probe = mmc_test_probe, .remove = mmc_test_remove, + .shutdown = mmc_test_shutdown, }; static int __init mmc_test_init(void) diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 3b7ca8ac0e61..219bf4b1d97e 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -122,6 +122,14 @@ static int mmc_bus_remove(struct device *dev) return 0; } +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); + + drv->shutdown(card); +} + #ifdef CONFIG_PM_SLEEP static int mmc_bus_suspend(struct device *dev) { @@ -205,6 +213,7 @@ static struct bus_type mmc_bus_type = { .uevent = mmc_bus_uevent, .probe = mmc_bus_probe, .remove = mmc_bus_remove, + .shutdown = mmc_bus_shutdown, .pm = &mmc_bus_pm_ops, }; diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 6a98f32670b8..842de3e21e70 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -520,6 +520,7 @@ struct mmc_driver { void (*remove)(struct mmc_card *); int (*suspend)(struct mmc_card *); int (*resume)(struct mmc_card *); + void (*shutdown)(struct mmc_card *); }; extern int mmc_register_driver(struct mmc_driver *); |