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2c5d427690
linux/drivers/mmc/core
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Ulf Hansson 2c5d427690 mmc: core: Add support for Power Off Notification for SD cards 
Rather than only deselecting the SD card via a CMD7, before we cut power to
it at system suspend, at runtime suspend or at shutdown, let's add support
for a graceful power off sequence via enabling the SD Power Off
Notification feature.

Note that, the Power Off Notification feature was added in the SD spec
v4.x, which is several years ago. However, it's still a bit unclear how
often the SD card vendors decides to implement support for it. To validate
these changes a Sandisk Extreme PRO A2 64GB has been used, which seems to
work nicely.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Link: https://lore.kernel.org/r/20210504161222.101536-12-ulf.hansson@linaro.org
2021-06-14 13:57:37 +02:00
..
block.c mmc: block: Issue a cache flush only when it's enabled 2021-04-26 11:37:23 +02:00
block.h mmc: block: Remove code no longer needed after the switch to blk-mq 2017-12-11 13:02:22 +01:00
bus.c mmc: cqhci: Fix random crash when remove mmc module/card 2021-03-09 10:00:52 +01:00
bus.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
card.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
core.c mmc: core: Extend re-use of __mmc_poll_for_busy() 2021-06-14 13:57:35 +02:00
core.h mmc: block: Issue a cache flush only when it's enabled 2021-04-26 11:37:23 +02:00
crypto.c mmc: core: Add basic support for inline encryption 2021-02-01 12:02:33 +01:00
crypto.h mmc: core: Add basic support for inline encryption 2021-02-01 12:02:33 +01:00
debugfs.c mmc: core: Use DEFINE_DEBUGFS_ATTRIBUTE instead of DEFINE_SIMPLE_ATTRIBUTE 2020-05-28 11:21:01 +02:00
host.c mmc: core: Convert mmc_of_parse_voltage() to use device property API 2021-04-23 09:29:49 +02:00
host.h mmc: core: Initial support for SD express card/host 2020-11-16 11:59:28 +01:00
Kconfig mmc: core: Add basic support for inline encryption 2021-02-01 12:02:33 +01:00
Makefile mmc: core: Add basic support for inline encryption 2021-02-01 12:02:33 +01:00
mmc_ops.c mmc: core: Prepare mmc_send_cxd_data() to be re-used for additional cmds 2021-06-14 13:57:36 +02:00
mmc_ops.h mmc: core: Prepare mmc_send_cxd_data() to be re-used for additional cmds 2021-06-14 13:57:36 +02:00
mmc_test.c mmc: mmc_test: use erase_arg for mmc_erase command 2021-02-12 12:07:03 +01:00
mmc.c mmc: core: Enable eMMC sleep commands to use HW busy polling 2021-06-14 13:57:36 +02:00
pwrseq_emmc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
pwrseq_sd8787.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
pwrseq_simple.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
pwrseq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
pwrseq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
queue.c mmc: core: Remove mq->use_cqe from the struct mmc_queue 2021-03-30 11:42:02 +02:00
queue.h mmc: core: Remove mq->use_cqe from the struct mmc_queue 2021-03-30 11:42:02 +02:00
quirks.h mmc: core: Mark fixups as __maybe_unused 2020-07-13 12:18:25 +02:00
regulator.c mmc: core: Add missing documetation for 'mmc' and 'ios' 2020-07-13 12:18:25 +02:00
sd_ops.c mmc: core: Drop open coding in mmc_sd_switch() 2021-06-14 13:57:36 +02:00
sd_ops.h mmc: core: Initial support for SD express card/host 2020-11-16 11:59:28 +01:00
sd.c mmc: core: Add support for Power Off Notification for SD cards 2021-06-14 13:57:37 +02:00
sd.h mmc: core: remove unused host parameter of mmc_sd_get_csd() 2021-02-01 11:54:48 +01:00
sdio_bus.c mmc: sdio: Export SDIO revision and info strings to userspace 2020-09-07 09:11:29 +02:00
sdio_bus.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sdio_cis.c mmc: core: Limit retries when analyse of SDIO tuples fails 2021-02-01 11:13:06 +01:00
sdio_cis.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sdio_io.c mmc: core: Provide description for sdio_set_host_pm_flags()'s 'flag' arg 2020-07-13 12:18:25 +02:00
sdio_irq.c sched,mmc: Convert to sched_set_fifo*() 2020-06-15 14:10:22 +02:00
sdio_ops.c mmc: sdio: Use mmc_pre_req() / mmc_post_req() 2020-09-07 08:57:44 +02:00
sdio_ops.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sdio_uart.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sdio.c mmc: core: Fix hanging on I/O during system suspend for removable cards 2021-03-30 11:42:03 +02:00
slot-gpio.c mmc: core: Remove mmc_gpiod_request_*(invert_gpio) 2019-12-18 13:37:07 +01:00
slot-gpio.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00