Adrian Hunter 1815e61b1a mmc: mmc: Improve reliability of mmc_select_hs200() ... Currently mmc_select_hs200() uses __mmc_switch() which checks the success of the switch to HS200 mode using CMD13 (SEND_STATUS). The problem is that it does that using the timing settings of legacy mode. That is prone to error, not least because the timing parameters for legacy mode are tighter than the timing parameters for HS200 mode. In the case when CMD13 polling is used (i.e. not MMC_CAP_WAIT_WHILE_BUSY) with the switch command, it must be assumed that using different modes on the card and host must work. However in the case when CMD13 polling is not used (i.e. MMC_CAP_WAIT_WHILE_BUSY) mmc_select_hs200() can be made more reliable by setting the host to the correct timing before sending CMD13. This patch does that. A complication is that the caller, mmc_select_timing(), will ignore a switch error (indicated by -EBADMSG), assume the old mode is valid and continue, so the old timing must be restored in that case. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: <stable@vger.kernel.org> # 4.2+ Tested-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>		2015-11-09 13:12:08 +01:00
..
accessibility	…
acpi	asm-generic cleanups	2015-11-06 14:22:15 -08:00
amba	…
android	…
ata	Merge branch 'for-4.3-fixes' into for-4.4	2015-11-03 17:29:03 -05:00
atm	…
auxdisplay	…
base	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2015-11-07 13:05:44 -08:00
bcma	…
block	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
bluetooth	driver core update for 4.4-rc1	2015-11-04 21:50:37 -08:00
bus	…
cdrom	…
char	powerpc updates for 4.4	2015-11-05 23:38:43 -08:00
clk	powerpc updates for 4.4	2015-11-05 23:38:43 -08:00
clocksource	Power management and ACPI updates for v4.4-rc1	2015-11-04 18:10:13 -08:00
connector	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
cpufreq	Merge branch 'pm-opp'	2015-11-02 00:54:37 +01:00
cpuidle	…
crypto	asm-generic cleanups	2015-11-06 14:22:15 -08:00
dca	…
devfreq	…
dio	…
dma	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
dma-buf	…
edac	asm-generic cleanups	2015-11-06 14:22:15 -08:00
eisa	…
extcon	Merge branches 'ib-extcon-mfd-4.4', 'ib-mfd-i2c-v4.4', 'ib-mfd-power-4.4', 'ib-mfd-regmap-4.4' and 'ib-mfd-regulator-4.4' into ibs-for-mfd-merged	2015-10-26 14:48:22 +00:00
firewire	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
firmware	Half dozen small cleanups plus change to allow pstore	2015-11-05 11:51:18 -08:00
fmc	…
fpga	fpga: socfpga: Fix check of return value of devm_request_irq	2015-10-29 15:20:25 -07:00
gpio	asm-generic cleanups	2015-11-06 14:22:15 -08:00
gpu	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2015-11-07 12:49:27 -08:00
hsi	hsi: controllers:remove redundant code	2015-10-30 16:10:40 +01:00
hv	drivers/hv: share Hyper-V SynIC constants with userspace	2015-11-04 16:24:33 +01:00
hwmon	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2015-11-07 13:05:44 -08:00
hwspinlock	…
hwtracing	…
i2c	asm-generic cleanups	2015-11-06 14:22:15 -08:00
ide	mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM	2015-11-06 17:50:42 -08:00
idle	…
iio	spi: Updates for v4.4	2015-11-05 13:15:12 -08:00
infiniband	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2015-11-06 11:57:41 -08:00
iommu	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
ipack	…
irqchip	Power management and ACPI updates for v4.4-rc1	2015-11-04 18:10:13 -08:00
isdn	TTY/Serial driver patches for 4.4-rc1	2015-11-04 21:35:12 -08:00
leds	spi: Updates for v4.4	2015-11-05 13:15:12 -08:00
lguest	…
lightnvm	lightnvm: refactor phys addrs type to u64	2015-11-03 09:53:24 -07:00
macintosh	…
mailbox	mailbox: mailbox-test: avoid reading iomem twice	2015-11-04 14:03:04 +05:30
mcb	mcb: Destroy IDA on module unload	2015-10-29 09:02:16 +09:00
md	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
media	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
memory	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
memstick	…
message	…
mfd	asm-generic cleanups	2015-11-06 14:22:15 -08:00
misc	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
mmc	mmc: mmc: Improve reliability of mmc_select_hs200()	2015-11-09 13:12:08 +01:00
mtd	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
net	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
nfc	spi: Updates for v4.4	2015-11-05 13:15:12 -08:00
ntb	…
nubus	…
nvdimm	…
nvme	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
nvmem	…
of	DeviceTree updates for 4.4:	2015-11-06 12:17:09 -08:00
oprofile	…
parisc	…
parport	…
pci	PCI changes for the v4.4 merge window:	2015-11-06 11:29:53 -08:00
pcmcia	…
perf	arm64 updates for 4.4:	2015-11-04 14:47:13 -08:00
phy	USB patches for 4.4-rc1	2015-11-04 21:26:27 -08:00
pinctrl	This is the bulk of GPIO changes for v4.4:	2015-11-02 12:59:12 -08:00
platform	asm-generic cleanups	2015-11-06 14:22:15 -08:00
pnp	…
power	- New Device Support	2015-11-06 10:23:50 -08:00
powercap	…
pps	…
ps3	…
ptp	…
pwm	…
rapidio	…
ras	…
regulator	spi: Updates for v4.4	2015-11-05 13:15:12 -08:00
remoteproc	…
reset	…
rpmsg	…
rtc	spi: Drop owner assignment from spi_drivers	2015-10-28 10:30:17 +09:00
s390	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux	2015-11-04 11:31:31 -08:00
sbus	…
scsi	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
sfi	…
sh	…
sn	…
soc	…
spi	Merge remote-tracking branches 'spi/topic/s3c64xx', 'spi/topic/ti-qspi' and 'spi/topic/txx9' into spi-next	2015-11-04 11:02:16 +00:00
spmi	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
ssb	ssb: add Kconfig entry for compiling SoC related code	2015-10-28 21:05:21 +02:00
staging	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
target	…
tc	…
thermal	…
thunderbolt	…
tty	asm-generic cleanups	2015-11-06 14:22:15 -08:00
uio	…
usb	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
uwb	driver core update for 4.4-rc1	2015-11-04 21:50:37 -08:00
vfio	…
vhost	vhost: fix performance on LE hosts	2015-10-27 20:17:03 -07:00
video	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
virt	…
virtio	…
vlynq	…
vme	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
w1	power supply and reset changes for the v4.4 series	2015-11-05 12:28:15 -08:00
watchdog	…
xen	…
zorro	…
Kconfig	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
Makefile	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00