linux_dsm_epyc7002/drivers/mmc/core
Ulf Hansson ee6ff743e3 mmc: core: Restore parts of the polling policy when switch to HS/HS DDR
Regressions for not being able to detect an eMMC HS DDR mode card has been
reported for the sdhci-esdhc-imx driver, but potentially other sdhci
variants may suffer from the similar problem.

The commit e173f8911f ("mmc: core: Update CMD13 polling policy when
switch to HS DDR mode"), is causing the problem. It seems that change moved
one step to far, regarding changing the host's timing before polling for a
busy card.

To fix this, let's move back to the behaviour when the host's timing is
updated after the polling, but before the switch status is fetched and
validated.

In cases when polling with CMD13, we keep validating the switch status at
each attempt. However, to align with the other card busy detections
mechanism, let's fetch and validate the switch status also after the host's
timing is updated.

Reported-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Reported-by: Gary Bisson <gary.bisson@boundarydevices.com>
Fixes: e173f8911f ("mmc: core: Update CMD13 polling policy when switch..")
Cc: Shawn Lin <shawn.lin@rock-chips.com>
Cc: Dong Aisheng <aisheng.dong@nxp.com>
Cc: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
2017-01-16 16:17:42 +01:00
..
block.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
block.h mmc: block: Move files to core 2016-12-12 16:30:05 +01:00
bus.c mmc: core: implement enhanced strobe support 2016-07-25 10:34:05 +02:00
bus.h mmc: rename dev_to_mmc_card() to mmc_dev_to_card() 2010-10-23 21:11:12 +08:00
core.c mmc: core: Further fix thread wake-up 2016-12-20 11:55:04 +01:00
core.h mmc: fix mmc_{un,}register_pm_notifier prototypes 2015-12-22 11:32:09 +01:00
debugfs.c mmc: debugfs: remove BUG_ON from mmc_ext_csd_open 2016-12-05 10:31:09 +01:00
host.c mmc: core: expose MMC_CAP2_NO_* to dt 2016-07-25 10:34:49 +02:00
host.h mmc: host: Add facility to support re-tuning 2015-06-01 09:06:53 +02:00
Kconfig mmc: block: Move files to core 2016-12-12 16:30:05 +01:00
Makefile mmc: block: Move files to core 2016-12-12 16:30:05 +01:00
mmc_ops.c mmc: core: Restore parts of the polling policy when switch to HS/HS DDR 2017-01-16 16:17:42 +01:00
mmc_ops.h mmc: mmc: Relax checking for switch errors after HS200 switch 2016-12-05 14:15:46 +01:00
mmc_test.c mmc: block: Move files to core 2016-12-12 16:30:05 +01:00
mmc.c mmc: mmc: Relax checking for switch errors after HS200 switch 2016-12-05 14:15:46 +01:00
pwrseq_emmc.c mmc: pwrseq: convert to proper platform device 2016-05-02 10:33:30 +02:00
pwrseq_simple.c mmc: pwrseq-simple: Add an optional post-power-on-delay 2016-09-26 21:31:07 +02:00
pwrseq.c mmc: pwrseq: convert to proper platform device 2016-05-02 10:33:30 +02:00
pwrseq.h mmc: pwrseq: convert to proper platform device 2016-05-02 10:33:30 +02:00
queue.c MMC core: 2016-12-14 10:55:56 -08:00
queue.h mmc: block: Move files to core 2016-12-12 16:30:05 +01:00
quirks.c mmc: core: Disable HPI for certain Hynix eMMC cards 2016-07-25 10:34:12 +02:00
sd_ops.c mmc: core: remove BUG_ONs from sd 2016-12-05 10:31:10 +01:00
sd_ops.h mmc: add erase, secure erase, trim and secure trim operations 2010-08-12 08:43:30 -07:00
sd.c mmc: sd: Meet alignment requirements for raw_ssr DMA 2016-12-21 08:34:30 +01:00
sd.h mmc: drop the speed mode of card's state 2014-05-12 18:05:53 -04:00
sdio_bus.c mmc: enable MMC/SD/SDIO device to suspend/resume asynchronously 2015-12-22 11:32:16 +01:00
sdio_bus.h mmc: basic SDIO device model 2007-09-23 19:45:31 +02:00
sdio_cis.c mmc: core: remove BUG_ONs from sdio 2016-12-05 10:31:08 +01:00
sdio_cis.h sdio: split up common and function CIS parsing 2007-09-23 20:44:22 +02:00
sdio_io.c mmc: sdio: deploy error handling instead of triggering BUG_ON 2016-09-26 21:31:15 +02:00
sdio_irq.c mmc: core: remove BUG_ONs from sdio 2016-12-05 10:31:08 +01:00
sdio_ops.c mmc: sdio: deploy error handling instead of triggering BUG_ON 2016-09-26 21:31:15 +02:00
sdio_ops.h mmc: Add mmc_is_io_op helper function 2015-10-26 16:00:01 +01:00
sdio_uart.c mmc: block: Move files to core 2016-12-12 16:30:05 +01:00
sdio.c mmc: core: remove BUG_ONs from sdio 2016-12-05 10:31:08 +01:00
slot-gpio.c mmc: core: expose the capability of gpio card detect 2016-11-29 09:00:37 +01:00
slot-gpio.h mmc: slot-gpio: Make mmc_gpio_alloc() available for MMC core 2015-01-19 09:56:17 +01:00