Add a missing character in the function description.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".
This issue was detected by using the Coccinelle software.
* Replace the specification of a data structure by a pointer dereference
to make the corresponding size determination a bit safer according to
the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The probe exit path on error does nothing since commit 94b110aff8
("mmc: tmio: add tmio_mmc_host_alloc/free()"), so we can bail out
immediately.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The caller may supply connection ID, index, or both. All combinations are
possible and mmc framework should not make any assumption on what exactly
caller wants.
Remove con_id override conditionals in mmc_gpiod_request_ro() and
mmc_gpiod_request_cd().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
cd_con_id is not used and always NULL.
Remove it to make code a bit more cleaner.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
msdc_card_busy only need check if the data0 is low.
In sdio data1 irq mode, data1 may be low because of interruption.
Signed-off-by: Yong Mao <yong.mao@mediatek.com>
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Initially all QorIQ platforms were PowerPC architecture and they didn't
support card detection except several platforms. The driver added the
quirk SDHCI_QUIRK_BROKEN_CARD_DETECTION as default and this made broken-cd
property in dts node didn't work. Now QorIQ platform turns to ARM
architecture and most of them could support card detection. However it's
a large number of dts trees that need to be fixed with broken-cd if we
remove the default SDHCI_QUIRK_BROKEN_CARD_DETECTION in driver. And the
users don't want to see this. So this patch is to remove this default
quirk just for ARM and keep it for PowerPC.(Note, QorIQ PowerPC platform
only has big-endian eSDHC while QorIQ ARM platform has big-endian or
little-endian eSDHC) This makes broken-cd property work again for ARM.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The eSDHC register definitions in header file were messy and confusing.
This patch is to clean up these definitions.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This platform driver adds initial support for the DW host controller
found on ZTE SoCs.
It has been tested on ZX296718 EVB board currently. More support on
timing tuning will be added when hardware is available.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Document the device-tree binding of ZTE MMC host on
ZX296718 SoC.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Data done irq is expected if data length is less than
watermark in PIO mode. But fifo watermark is requested
to be aligned with data length in some SoC so that TX/RX
irq can be generated with data done irq. Add the
watermark alignment to mark this requirement and force
fifo watermark setting accordingly.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The FIFO address may break default address assumption of 0x100
(version < 0x240A) and 0x200(version >= 0x240A) in current driver.
The new property is introduced to override fifo address via DT
node information.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Add fifo-addr property and fifo-watermark-quirk property to
synopsys-dw-mshc bindings. It is intended to provide more
dt interface to support SoCs specific configuration.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
An mmc host driver shouldn't rely on interrupt.h being included by another
public mmc header. Instead make that dependency explicit by including
interrupt.h in those host drivers that depends on it.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Don't rely on host.h to include the leds.h header, but instead include it
explicitly because the driver depends on it.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Don't rely on host.h to include the mmc.h header, but instead include it
explicitly because the driver depends on it.
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
There are currently no external users of the public dw_mmc header file,
except the dw_mmc driver itself. Therefore let's move the definitions from
the public dw_mmc header file into the existing private dw_mmc header file
and then remove the public one.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
There are currently no users of the clk_ctrl2_present member from the
platform data, so let's remove it.
Note, as some of the sh_mmcif variants may support clk_ctrl2, let's keep
the current code in the driver, which deals with this. For future support,
we should invent a DT binding instead, but let's leave that until it's
needed.
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
There are currently no users of the ccs_unsupported member from the
platform data, so let's remove it.
Note, as some of the sh_mmcif variants may not support ccs, let's keep the
current code in the driver, which deals with this. For future support, we
should invent a DT binding instead, but let's leave that until it's needed.
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Removing the callback also enables us to remove the sh_mmcif_get_cd()
altogether, as we convert to use mmc_gpio_get_cd() to the same kind of
work.
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The enum that specifies the MMC_PROGRESS* types, is a sh mmcif specific
thing and has no relevance in a public mmc header. Currently it's used only
by the sh romImage MMCIF boot, so let's instead define the enum in there
and rename the types to MMCIF_* to show this.
Cc: linux-sh@vger.kernel.org
Cc: Simon Horman <horms@verge.net.au>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
According to the BCM2835 datasheet the maximum block size for the
eMMC module is restricted to the internal data FIFO which is 1024 byte.
But this is still an improvement to the default of 512 byte.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Since the mmc module on bcm2835 neither provide a capabilities register nor
free documentation we must rely on the downstream implementation [1].
So enable the following capabilities for bcm2835:
MMC_CAP_MMC_HIGHSPEED
MMC_CAP_SD_HIGHSPEED
MMC_CAP_DRIVER_TYPE_A
MMC_CAP_DRIVER_TYPE_C
[1] - https://github.com/raspberrypi/linux/blob/rpi-4.4.y/drivers/mmc/host/bcm2835-mmc.c
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
In the MMC subsystem, we see such initializers that only clears the
first member explicitly.
For example,
struct mmc_request mrq = {NULL};
sets the first member (.sbc) to NULL explicitly. However, this is
an unstable form because we may insert a non-pointer member at the
top of the struct mmc_request in the future. (if we do so, the
compiler will spit warnings.)
So, using a designated initializer is preferred coding style. The
expression above is equivalent to:
struct mmc_request mrq = { .sbc = NULL };
Of course, this does not express our intention. We want to fill
all struct members with zeros. Please note struct members are
implicitly zero-cleared unless otherwise specified in the initializer.
After all, the most reasonable (and stable) form is:
struct mmc_request mrq = {};
Do likewise for mmc_command, mmc_data as well.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
With gcc-4.1.2:
mmc/core/block.c: In function ‘mmc_blk_issue_discard_rq’:
mmc/core/block.c:1150: warning: ‘arg’ may be used uninitialized in this function
mmc/core/block.c:1150: warning: ‘nr’ may be used uninitialized in this function
mmc/core/block.c:1150: warning: ‘from’ may be used uninitialized in this function
While this is a false positive, it can be avoided easily by jumping over
the checks for "err" that are always false.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
In the eMMC 5.0 version of the spec, several EXT_CSD fields about
device lifetime are added.
- Two types of estimated indications reflected by averaged wear out of memory
- An indication reflected by average reserved blocks
Export the information through sysfs.
Signed-off-by: Jungseung Lee <js07.lee@samsung.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Setup tuning when the board is HS200 enabled.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The function will only be available if SDR104 was detected in probe,
so no need to check in the function itself again.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The function will only be available if SDR104 was detected in probe,
so no need to check in the function itself again.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The capability for HW_RESET is only activated if SDR104 is present, so
no need to check for SDR104 in the function itself again.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Prerequisites for tuning are the same as for hw_reset. We need an SCC
and a supported mode. Populate the tuning related functions only when
those conditions are met. This also removes a tiny race window.
Previously, the functions were populated when the SCC offset was not
initialized which could have led to an OOPS.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
We need a SCC unit for hw_reset. Those units can only be described in
of_data. So, of_data and a valid SCC offset are prerequisites for
enabling the hw_reset capability. Merge the two 'if' conditions into one
and add a check for an scc offset.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
By using the helper of_device_get_match_data(), we can skip some
checking and make the code simpler.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The master bit to enable SDIO interrupts can only be accessed if
SCLKDIVEN bit allows that. However, the core uses the SDIO enable
callback at times when SCLKDIVEN forbids the change. This leads to
"timeout waiting for SD bus idle" messages.
We now activate the master bit in probe once if SDIO is supported. IRQ
en-/disabling will be done now by the individual IRQ enablement bits
only.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Yasushi SHOJI <yashi@atmark-techno.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Pull x86 fixes from Ingo Molnar:
"Last minute x86 fixes:
- Fix a softlockup detector warning and long delays if using ptdump
with KASAN enabled.
- Two more TSC-adjust fixes for interesting firmware interactions.
- Two commits to fix an AMD CPU topology enumeration bug that caused
a measurable gaming performance regression"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/ptdump: Fix soft lockup in page table walker
x86/tsc: Make the TSC ADJUST sanitizing work for tsc_reliable
x86/tsc: Avoid the large time jump when sanitizing TSC ADJUST
x86/CPU/AMD: Fix Zen SMT topology
x86/CPU/AMD: Bring back Compute Unit ID
Pull timer fix from Ingo Molnar:
"Fix a sporadic missed timer hw reprogramming bug that can result in
random delays"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick/nohz: Fix possible missing clock reprog after tick soft restart
Pull irq fixes from Ingo Molnar:
"Two last minute ARM irqchip driver fixes"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/mxs: Enable SKIP_SET_WAKE and MASK_ON_SUSPEND
irqchip/keystone: Fix "scheduling while atomic" on rt
Pull btrfs fixes from Chris Mason:
"This has two last minute fixes. The highest priority here is a
regression fix for the decompression code, but we also fixed up a
problem with the 32-bit compat ioctls.
The decompression bug could hand back the wrong data on big reads when
zlib was used. I have a larger cleanup to make the math here less
error prone, but at this stage in the release Omar's patch is the best
choice"
* 'for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: fix btrfs_decompress_buf2page()
btrfs: fix btrfs_compat_ioctl failures on non-compat ioctls
Six fairly small fixes. None is a real show stopper, two automation
detected problems: one memory leak, one use after free and four others
each of which fixes something that has been a significant source of
annoyance to someone.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Six fairly small fixes. None is a real show stopper, two automation
detected problems: one memory leak, one use after free and four others
each of which fixes something that has been a significant source of
annoyance to someone"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: zfcp: fix use-after-free by not tracing WKA port open/close on failed send
scsi: aacraid: Fix INTx/MSI-x issue with older controllers
scsi: mpt3sas: disable ASPM for MPI2 controllers
scsi: mpt3sas: Force request partial completion alignment
scsi: qla2xxx: Avoid that issuing a LIP triggers a kernel crash
scsi: qla2xxx: Fix a recently introduced memory leak
If btrfs_decompress_buf2page() is handed a bio with its page in the
middle of the working buffer, then we adjust the offset into the working
buffer. After we copy into the bio, we advance the iterator by the
number of bytes we copied. Then, we have some logic to handle the case
of discontiguous pages and adjust the offset into the working buffer
again. However, if we didn't advance the bio to a new page, we may enter
this case in error, essentially repeating the adjustment that we already
made when we entered the function. The end result is bogus data in the
bio.
Previously, we only checked for this case when we advanced to a new
page, but the conversion to bio iterators changed that. This restores
the old, correct behavior.
A case I saw when testing with zlib was:
buf_start = 42769
total_out = 46865
working_bytes = total_out - buf_start = 4096
start_byte = 45056
The condition (total_out > start_byte && buf_start < start_byte) is
true, so we adjust the offset:
buf_offset = start_byte - buf_start = 2287
working_bytes -= buf_offset = 1809
current_buf_start = buf_start = 42769
Then, we copy
bytes = min(bvec.bv_len, PAGE_SIZE - buf_offset, working_bytes) = 1809
buf_offset += bytes = 4096
working_bytes -= bytes = 0
current_buf_start += bytes = 44578
After bio_advance(), we are still in the same page, so start_byte is the
same. Then, we check (total_out > start_byte && current_buf_start < start_byte),
which is true! So, we adjust the values again:
buf_offset = start_byte - buf_start = 2287
working_bytes = total_out - start_byte = 1809
current_buf_start = buf_start + buf_offset = 45056
But note that working_bytes was already zero before this, so we should
have stopped copying.
Fixes: 974b1adc3b ("btrfs: use bio iterators for the decompression handlers")
Reported-by: Pat Erley <pat-lkml@erley.org>
Reviewed-by: Chris Mason <clm@fb.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Tested-by: Liu Bo <bo.li.liu@oracle.com>
Pull networking fixes from David Miller:
1) If the timing is wrong we can indefinitely stop generating new ipv6
temporary addresses, from Marcus Huewe.
2) Don't double free per-cpu stats in ipv6 SIT tunnel driver, from Cong
Wang.
3) Put protections in place so that AF_PACKET is not able to submit
packets which don't even have a link level header to drivers. From
Willem de Bruijn.
4) Fix memory leaks in ipv4 and ipv6 multicast code, from Hangbin Liu.
5) Don't use udp_ioctl() in l2tp code, UDP version expects a UDP socket
and that doesn't go over very well when it is passed an L2TP one.
Fix from Eric Dumazet.
6) Don't crash on NULL pointer in phy_attach_direct(), from Florian
Fainelli.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
l2tp: do not use udp_ioctl()
xen-netfront: Delete rx_refill_timer in xennet_disconnect_backend()
NET: mkiss: Fix panic
net: hns: Fix the device being used for dma mapping during TX
net: phy: Initialize mdio clock at probe function
igmp, mld: Fix memory leak in igmpv3/mld_del_delrec()
xen-netfront: Improve error handling during initialization
sierra_net: Skip validating irrelevant fields for IDLE LSIs
sierra_net: Add support for IPv6 and Dual-Stack Link Sense Indications
kcm: fix 0-length case for kcm_sendmsg()
xen-netfront: Rework the fix for Rx stall during OOM and network stress
net: phy: Fix PHY module checks and NULL deref in phy_attach_direct()
net: thunderx: Fix PHY autoneg for SGMII QLM mode
net: dsa: Do not destroy invalid network devices
ping: fix a null pointer dereference
packet: round up linear to header len
net: introduce device min_header_len
sit: fix a double free on error path
lwtunnel: valid encap attr check should return 0 when lwtunnel is disabled
ipv6: addrconf: fix generation of new temporary addresses
- Two security related issues in the rxe driver
- One compile issue in the RDMA uapi header
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma fixes from Doug Ledford:
"Third round of -rc fixes for 4.10 kernel:
- two security related issues in the rxe driver
- one compile issue in the RDMA uapi header"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
RDMA: Don't reference kernel private header from UAPI header
IB/rxe: Fix mem_check_range integer overflow
IB/rxe: Fix resid update
Pull i2c bugfixes from Wolfram Sang:
"Two bugfixes (proper IO mapping and use of mutex) for a driver feature
we introduced in this cycle"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: piix4: Request the SMBUS semaphore inside the mutex
i2c: piix4: Fix request_region size
Markus Elfring