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Wolfram Sang ef5332c10d mmc: renesas_sdhi: really fix WP logic regressions 
This reverts commit e060d376cc ("mmc: renesas_sdhi: fix WP detection")
and adds some code to really fix the regressions.

It was missed so far that Renesas R-Car instantiations of SDHI chose to
disable internal WP and used the existence of "wp-gpios" to en/disable
WP at all.

With the first refactoring by Yamada-san with commit 2ad1db059b ("mmc:
renesas_sdhi: use MMC_CAP2_NO_WRITE_PROTECT instead of TMIO own flag"),
WP was always disabled even when GPIOs were present. With Wolfram's
first fix which gets now reverted, GPIOs were honored. But when not
available, the fallback was to internal WP and not to disabled WP. This
caused wrong WP status on uSD card slots.

Restore the old behaviour now. By default, WP is disabled. When a GPIO
is found, the GPIO re-enables WP. We will think about possible better
ways to handle this in the future.

Tested on a previously regressing Renesas Lager board (H2) and a still
working Renesas Salvator-X board (M3-W).

Reported-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: stable@vger.kernel.org # v4.17+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
 		2018-06-04 11:16:58 +02:00
..
accessibility
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acpi ACPI fixes for 4.17-rc3 2018-04-26 11:06:36 -07:00
amba ARM: amba: Fix race condition with driver_override 2018-04-26 10:35:04 +02:00
android ANDROID: binder: prevent transactions into own process. 2018-04-23 12:12:41 +02:00
ata Merge branch 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2018-04-03 17:42:25 -07:00
atm atm: iphase: fix spelling mistake: "Tansmit" -> "Transmit" 2018-04-19 13:41:49 -04:00
auxdisplay
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base Driver core fixes for 4.17-rc3 2018-04-27 10:12:20 -07:00
bcma
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block for-linus-20180425 2018-04-25 21:05:15 -07:00
bluetooth Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME 2018-04-01 21:43:02 +03:00
bus HISI LPC: Add Kconfig MFD_CORE dependency 2018-04-26 16:53:23 +02:00
cdrom cdrom: information leak in cdrom_ioctl_media_changed() 2018-04-18 08:21:32 -06:00
char virtio: fixups 2018-04-26 16:36:11 -07:00
clk The large diff this time around is from the addition of a new clk driver 2018-04-13 15:51:06 -07:00
clocksource clocksource/imx-tpm: Correct -ETIME return condition check 2018-04-19 13:21:35 +02:00
connector
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cpufreq powerpc fixes for 4.17 #4 2018-04-28 09:45:34 -07:00
cpuidle cpuidle: menu: Avoid selecting shallow states with stopped tick 2018-04-09 11:54:57 +02:00
crypto .gitignore: move *-asn1.[ch] patterns to the top-level .gitignore 2018-04-07 19:04:02 +09:00
dax device-dax: allow MAP_SYNC to succeed 2018-04-19 15:11:50 -07:00
dca
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devfreq
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dio
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dma DMAengine updates for v4.17-rc1 2018-04-10 12:14:37 -07:00
dma-buf
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edac * Add NVDIMM support to EDAC (Tony Luck) 2018-04-05 14:21:13 -07:00
eisa
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extcon Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
firewire
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firmware firmware: arm_scmi: remove redundant null check on array 2018-04-16 10:15:58 +01:00
fmc treewide: Fix typos in printk 2018-03-27 09:51:22 +02:00
fpga fpga-manager: altera-ps-spi: preserve nCONFIG state 2018-04-23 13:27:05 +02:00
fsi
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gpio DeviceTree updates for 4.17: 2018-04-05 21:03:42 -07:00
gpu Merge tag 'drm-intel-fixes-2018-04-26' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes 2018-04-27 14:08:47 +10:00
hid HID: i2c-hid: fix inverted return value from i2c_hid_command() 2018-04-19 09:25:15 +02:00
hsi
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hv ARM: 2018-04-09 11:42:31 -07:00
hwmon hwmon: (k10temp) Add support for AMD Ryzen w/ Vega graphics 2018-04-25 05:31:06 -07:00
hwspinlock
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hwtracing Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
i2c i2c: sprd: Fix the i2c count issue 2018-04-27 14:12:43 +02:00
ide for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
idle
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iio This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
infiniband Merge candidates for 4.17 merge window 2018-04-06 17:35:43 -07:00
input Revert: Unify CLOCK_MONOTONIC and CLOCK_BOOTTIME 2018-04-26 14:53:32 +02:00
iommu IOMMU Updates for Linux v4.17 2018-04-11 18:50:41 -07:00
ipack
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irqchip IOMMU Updates for Linux v4.17 2018-04-11 18:50:41 -07:00
isdn mISDN: Remove VLAs 2018-04-12 21:46:10 -04:00
leds
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lightnvm lightnvm: pblk: remove some unnecessary NULL checks 2018-03-29 17:29:09 -06:00
macintosh powerpc updates for 4.17 2018-04-07 12:08:19 -07:00
mailbox
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mcb
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md Merge tag 'md/4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2018-04-20 10:39:44 -07:00
media remoteproc updates for v4.17 2018-04-10 12:09:27 -07:00
memory ARM: OMAP2+: Fix build when using split object directories 2018-04-18 10:07:13 -07:00
memstick
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message scsi: mptsas: Disable WRITE SAME 2018-04-18 23:37:25 -04:00
mfd platform/chrome: mfd/cros_ec_dev: Add sysfs entry to set keyboard wake lid angle 2018-04-10 22:25:07 -07:00
misc * Fix 2032 time access issues and new compiler warnings 2018-04-12 10:21:19 -07:00
mmc mmc: renesas_sdhi: really fix WP logic regressions 2018-06-04 11:16:58 +02:00
mtd mtd: rawnand: marvell: fix the chip-select DT parsing logic 2018-04-26 19:06:42 +02:00
mux
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net Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue 2018-04-24 16:17:59 -04:00
nfc
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ntb
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nubus
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nvdimm Revert "libnvdimm, of_pmem: workaround OF_NUMA=n build error" 2018-04-19 15:10:56 -07:00
nvme nvme: expand nvmf_check_if_ready checks 2018-04-12 09:58:27 -06:00
nvmem Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
of earlycon: Use a pointer table to fix __earlycon_table stride 2018-04-23 10:06:59 +02:00
opp
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oprofile oprofilefs: don't oops on allocation failure 2018-03-29 15:07:48 -04:00
parisc parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode 2018-03-27 18:52:22 +02:00
parport Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
pci pci-v4.17-fixes-1 2018-04-26 16:28:24 -07:00
pcmcia Merge branch 'for-linus-sa1100' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-04-09 09:26:36 -07:00
perf ARM: SoC driver updates for 4.17 2018-04-05 21:29:35 -07:00
phy ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
pinctrl This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
platform Changes to chrome-platform for v4.17 2018-04-13 16:20:36 -07:00
pnp
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power ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
powercap
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pps
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ps3
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ptp
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pwm pwm: Changes for v4.17-rc1 2018-04-13 15:46:21 -07:00
rapidio rapidio: fix rio_dma_transfer error handling 2018-04-20 17:18:35 -07:00
ras
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regulator Merge remote-tracking branches 'regulator/topic/88pg86x', 'regulator/topic/dt', 'regulator/topic/formatting' and 'regulator/topic/gpio' into regulator-next 2018-03-28 10:33:53 +08:00
remoteproc remoteproc: fix null pointer dereference on glink only platforms 2018-04-05 22:53:16 -07:00
reset Merge branch 'reset/lookup' into reset/next 2018-03-27 11:03:43 +02:00
rpmsg rpmsg: smd: Use announce_create to process any receive work 2018-03-27 21:54:37 -07:00
rtc rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops 2018-04-25 13:24:13 +10:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2018-04-26 10:29:46 -07:00
sbus sparc64: Properly range check DAX completion index 2018-04-01 20:07:00 -04:00
scsi scsi: sd_zbc: Avoid that resetting a zone fails sporadically 2018-04-19 00:04:10 -04:00
sfi
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sh
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siox
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slimbus slimbus: Fix out-of-bounds access in slim_slicesize() 2018-04-23 13:40:15 +02:00
sn
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soc soc: bcm: raspberrypi-power: Fix use of __packed 2018-04-16 15:15:23 -07:00
soundwire
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spi spi: SPI updates for v4.17 2018-04-03 12:06:21 -07:00
spmi
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ssb
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staging staging: wilc1000: fix NULL pointer exception in host_int_parse_assoc_resp_info() 2018-04-23 15:57:38 +02:00
target scsi: target: fix crash with iscsi target and dvd 2018-04-19 00:41:03 -04:00
tc
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tee
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thermal Merge branches 'thermal-core' and 'thermal-soc' into next 2018-04-13 14:11:53 +08:00
thunderbolt
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tty tty: Use __GFP_NOFAIL for tty_ldisc_get() 2018-04-25 15:03:44 +02:00
uio uio_hv_generic: fix subchannel ring mmap 2018-04-23 12:43:48 +02:00
usb USB-serial fixes for v4.17-rc3 2018-04-26 19:29:24 +02:00
uwb
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vfio VFIO updates for v4.17-rc1 2018-04-06 19:44:27 -07:00
vhost vhost: return bool from *_access_ok() functions 2018-04-11 10:54:06 -04:00
video fbdev changes for v4.17: 2018-04-10 10:20:00 -07:00
virt virt: vbox: Log an error when we fail to get the host version 2018-04-23 13:41:55 +02:00
virtio virtio: feature 2018-04-11 18:58:27 -07:00
visorbus
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vlynq
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vme
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w1
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watchdog aspeed: watchdog: Set bootstatus during probe 2018-04-16 10:22:40 +02:00
xen xen: fixes and one header update for 4.17-rc2 2018-04-20 08:36:04 -07:00
zorro
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Kconfig hwtracing: Add HW tracing support menu 2018-03-29 13:38:10 +03:00
Makefile
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