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08f80bb519
android_kernel_xiaomi_sm8350/drivers
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Anton Vorontsov 08f80bb519 mmc: change .get_ro() callback semantics 
Now get_ro() callback must return 0/1 values for its logical states, and
negative errno values in case of error. If particular host instance doesn't
support RO/WP switch, it should return -ENOSYS.

This patch changes some hosts in two ways:

1. Now functions should be smart to not return negative values in
   "RO asserted" case (particularly gpio_ calls could return negative
   values for the outermost GPIOs).

   Also, board code usually passes get_ro() callbacks that directly return
   gpioreg & bit result, so at91_mci, imxmmc, pxamci and mmc_spi's get_ro()
   handlers need take special care when returning platform's values to the
   mmc core.

2. In case of host instance didn't implement get_ro() callback, it should
   really return -ENOSYS and let the mmc core decide what to do about it
   (mmc core thinks the same way as the hosts, so it isn't functional
   change).

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15 14:14:41 +02:00
..
accessibility
acpi x86, VisWS: turn into generic arch, eliminate Kconfig specials 2008-07-10 18:55:47 +02:00
amba
ata Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2008-07-14 13:15:14 -07:00
atm firmware: convert Ambassador ATM driver to request_firmware() 2008-07-10 14:49:39 +01:00
auxdisplay Miguel Ojeda has moved 2008-07-04 10:40:05 -07:00
base Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git 2008-07-14 15:51:11 -07:00
block Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-07-14 14:48:31 -07:00
bluetooth Merge branch 'for-2.6.27' of git://git.infradead.org/users/dwmw2/firmware-2.6 2008-07-14 16:54:07 -07:00
cdrom cdrom: revert commit 22a9189 (cdrom: use kmalloced buffers instead of buffers on stack) 2008-07-04 09:52:14 +02:00
char Merge branch 'for-2.6.27' of git://git.infradead.org/users/dwmw2/firmware-2.6 2008-07-14 16:54:07 -07:00
clocksource
connector
cpufreq
cpuidle
crypto crypto: ixp4xx - Select CRYPTO_AUTHENC 2008-07-13 20:12:11 +08:00
dca
dio
dma
edac
eisa
firewire
firmware Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git 2008-07-14 15:51:11 -07:00
gpio gpio: pca953x (i2c) handles max7310 too 2008-07-04 10:40:06 -07:00
gpu Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-07-14 14:48:31 -07:00
hid Merge commit 'v2.6.26' into bkl-removal 2008-07-14 15:29:34 -06:00
hwmon hdaps: add support for various newer Lenovo thinkpads 2008-07-04 10:40:06 -07:00
i2c Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-07-14 16:06:58 -07:00
ide Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-07-14 14:48:31 -07:00
ieee1394
infiniband Merge commit 'v2.6.26' into bkl-removal 2008-07-14 15:29:34 -06:00
input Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-07-14 14:48:31 -07:00
isdn Merge commit 'v2.6.26' into bkl-removal 2008-07-14 15:29:34 -06:00
leds
lguest x86, VisWS: turn into generic arch, eliminate Kconfig specials 2008-07-10 18:55:47 +02:00
macintosh Merge commit 'v2.6.26' into bkl-removal 2008-07-14 15:29:34 -06:00
mca
md Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2008-07-14 13:15:14 -07:00
media Merge branch 'for-2.6.27' of git://git.infradead.org/users/dwmw2/firmware-2.6 2008-07-14 16:54:07 -07:00
memstick
message Merge commit 'v2.6.26' into bkl-removal 2008-07-14 15:29:34 -06:00
mfd
misc Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-07-14 14:48:31 -07:00
mmc mmc: change .get_ro() callback semantics 2008-07-15 14:14:41 +02:00
mtd Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-07-14 16:06:58 -07:00
net Merge branch 'for-2.6.27' of git://git.infradead.org/users/dwmw2/firmware-2.6 2008-07-14 16:54:07 -07:00
nubus
of
oprofile
parisc
parport
pci x86, VisWS: turn into generic arch, add early init quirks 2008-07-10 18:55:32 +02:00
pcmcia Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-07-14 16:06:58 -07:00
pnp
power
ps3
rapidio rapidio: fix device reference counting 2008-07-10 18:04:43 -07:00
rtc Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-07-14 16:06:58 -07:00
s390 Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-07-14 14:48:31 -07:00
sbus Merge commit 'v2.6.26' into bkl-removal 2008-07-14 15:29:34 -06:00
scsi Merge branch 'for-2.6.27' of git://git.infradead.org/users/dwmw2/firmware-2.6 2008-07-14 16:54:07 -07:00
serial Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-07-14 16:06:58 -07:00
sh
sn
spi Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-07-14 16:06:58 -07:00
ssb ssb-pcicore: Fix IRQ-vector init on embedded devices 2008-07-07 15:31:40 -04:00
tc
telephony
thermal
uio Merge commit 'v2.6.26' into bkl-removal 2008-07-14 15:29:34 -06:00
usb Merge branch 'for-2.6.27' of git://git.infradead.org/users/dwmw2/firmware-2.6 2008-07-14 16:54:07 -07:00
video Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-07-14 16:06:58 -07:00
virtio
w1
watchdog
xen Merge branch 'x86/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-07-14 13:43:24 -07:00
zorro
Kconfig
Makefile drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00