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The strlen_user() function calls __strlen_kernel_asm in both branches of
the eva_kernel_access() conditional. For EVA it should be calling
__strlen_user_eva for user accesses, otherwise it will load from the
kernel address space instead of the user address space, and the access
checking will likely be ineffective at preventing it due to EVA's
overlapping user and kernel address spaces.
This was found after extending the test_user_copy module to cover user
string access functions, which gave the following error with EVA:
test_user_copy: illegal strlen_user passed
Fortunately the use of strlen_user() has been all but eradicated from
the mainline kernel, so only out of tree modules could be affected.
Fixes: e3a9b07a9caf ("MIPS: asm: uaccess: Add EVA support for str*_user operations")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Leonid Yegoshin <leonid.yegoshin@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: <stable@vger.kernel.org> # 3.15.x-
Patchwork: https://patchwork.linux-mips.org/patch/10842/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The dw_mmc driver stores the physical address of the MMIO registers
in a pointer, which requires the use of type casts, and is actually
broken if anyone ever has this device on a 32-bit SoC in registers
above 4GB. Gcc warns about this possibility when the driver is built
with ARM LPAE enabled:
mmc/host/dw_mmc.c: In function 'dw_mci_edmac_start_dma':
mmc/host/dw_mmc.c:702:17: warning: cast from pointer to integer of different size
cfg.dst_addr = (dma_addr_t)(host->phy_regs + fifo_offset);
^
mmc/host/dw_mmc-pltfm.c: In function 'dw_mci_pltfm_register':
mmc/host/dw_mmc-pltfm.c:63:19: warning: cast to pointer from integer of different size
host->phy_regs = (void *)(regs->start);
This changes the code to use resource_size_t, which gets rid of the
warning, the bug and the useless casts.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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there is a time window between __mmc_send_status() and time_afer(),
on some eMMC chip, the timeout_ms is only 10ms, if this thread was
scheduled out during this period, then, even card has already changes
to transfer state by the result of CMD13, this part of code also treat
it to timeout error.
So, need calculate timeout first, then call __mmc_send_status(), if
already timeout and card still in programing state, then treat it to
the real timeout error.
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Commit bb08a7d489bd ("mmc: usdhi6rol0: fix NULL pointer deref in debug
print") fixed one NULL pointer dereference but unfortunately introduced
another. "data" may be NULL if this is a command timeout for a command
without any data, so we should only use it if we're actually waiting for
data.
Fixes: bb08a7d489bd ("mmc: usdhi6rol0: fix NULL pointer deref in debug print")
Cc: stable@vger.kernel.org # v4.3
Signed-off-by: Rabin Vincent <rabin.vincent@axis.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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If no primary handler is specified for threaded_irq then a
default one is assigned which always returns IRQ_WAKE_THREAD.
This handler requires the IRQF_ONESHOT, because the source of
interrupt is not disabled
Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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there are too many error logs shown when use CMD21/CMD19 to do tune,
and it will appear at each resume time, print out so many logs to the
uart console cost too mush time. so change it to dev_dbg.
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Now, PM core supports asynchronous suspend/resume mode for devices
during system suspend/resume, and the power state transition of one
device may be completed in separate kernel thread. PM core ensures
all power state transition dependency between devices. This patch
enables MMC/SD/SDIO card and SDIO function devices to suspend/resume
asynchronously. This will take advantage of multicore and improve
system suspend/resume speed. After applying this patch and enabling
all SDIO function's child devices to suspend/resume asynchronously
on ASUS T100TA, the system suspend-to-idle time is reduced from
1645ms to 1108ms, and the system resume time is reduced from 940ms
to 918ms.
Signed-off-by: Zhonghui Fu <zhonghui.fu@linux.intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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sdhci has a legacy facility to prevent runtime suspend if the
bus power is on. This is needed in cases where the power to
the card is dependent on the bus power. It is controlled by
a pair of functions: sdhci_runtime_pm_bus_on() and
sdhci_runtime_pm_bus_off(). These functions use a boolean
variable 'bus_on' to ensure changes are always paired.
There is an additional check for 'runtime_suspended' which is
the problem. In fact, its use is ill-conceived as the only
requirement for the logic is that 'on' and 'off' are paired,
which is actually broken by the check, for example if the bus
power is turned on during runtime resume. So remove the check.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org # v3.11+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The version 3.00 SDHCI spec. was a bit unclear about the
required data alignment for 64-bit DMA, whereas the version
4.10 spec. uses different language and indicates that only
4-byte alignment is required rather than the 8-byte alignment
currently implemented. That make no difference to SD and EMMC
which invariably transfer data in sector-aligned blocks.
However with SDIO, it results in using more DMA descriptors
than necessary. Theoretically that slows DMA slightly although
DMA is not the limiting factor for throughput, so there is no
discernable impact on performance. Nevertheless, the driver
should follw the spec unless there is good reason not to, so
this patch corrects the alignment criterion.
There is a more complicated criterion for the DMA descriptor
table itself. However the table is allocated by dma_alloc_coherent()
which allocates pages (i.e. aligned to a page boundary).
For simplicity just check it is 8-byte aligned, but add a comment
that some Intel controllers actually require 8-byte alignment
even when using 32-bit DMA.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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SDHCI has built-in DMA called ADMA2. ADMA2 uses a descriptor
table to define DMA scatter-gather. Each desciptor can specify
a data length up to 65536 bytes, however the length field is
only 16-bits so zero means 65536. Consequently, putting zero
when the size is zero must not be allowed. This patch fixes
one case where zero data length could be set inadvertently.
The problem happens because unaligned data gets split and the
code did not consider that the remaining aligned portion might
be zero length. That case really only happens for SDIO because
SD and eMMC cards transfer blocks that are invariably sector-
aligned. For SDIO, access to function registers is done by
data transfer (CMD53) when the register is bigger than 1 byte.
Generally registers are 4 bytes but 2-byte registers are possible.
So DMA of 4 bytes or less can happen. When 32-bit DMA is used,
the data alignment must be 4, so 4-byte transfers won't casue a
problem, but a 2-byte transfer could. However with the introduction
of 64-bit DMA, the data alignment for 64-bit DMA was made 8 bytes,
so all 4-byte transfers not on 8-byte boundaries get "split" into
a 4-byte chunk and a 0-byte chunk, thereby hitting the bug.
In fact, a closer look at the SDHCI specs indicates that only the
descriptor table requires 8-byte alignment for 64-bit DMA. That
will be dealt with in a separate patch, but the potential for a
2-byte access remains, so this fix is needed anyway.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org # v3.19+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The 'ocr' parameter passed to mmc_set_signal_voltage()
defines the power-on voltage used when power cycling
after a failure to set the voltage. However, in the
case of mmc_sdio_init_card(), the value passed has the
R4_18V_PRESENT flag set which is not valid for power-on
and results in an invalid vdd. Fix by passing the card's
ocr value which does not have the flag.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org # v3.13+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The driver may not be able to set the power correctly but that
is not a reason to BUG().
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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In some cases, the stronger 33 Ohm driver strength must not be used
so it is not a suitable default. Change it to the standard default
50 Ohm value.
The patch applies to v4.2+ except the file name changed. It is
drivers/mmc/host/sdhci-pci.c prior to v.4.4.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org # v4.2+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Commit cc4f414c885c ("mmc: mmc: Add driver strength selection")
added driver strength selection for eMMC HS200 and HS400 modes.
That patch also set the driver stength when transitioning through
High Speed mode to HS200/HS400, but driver strength is not defined
for High Speed mode. While the JEDEC specification is not clear
on this point it has been observed to cause problems for some eMMC,
and removing the driver strength setting in this case makes it
consistent with the normal use of High Speed mode.
Signed-off-by: Wenkai Du <wenkai.du@intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org # v4.2+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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This patch introduce a new MMC_CAP2_NO_SDIO cap used to tell the mmc
core to not send SDIO specific commands.
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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There are no in-kernel users of the MVSDIO platform data method
(instantiating from a board file) so just delete this code and
make this a DT-only driver. We depend on OF and check that we have
an OF node in probe().
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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This platform data struct is only used inside the MVSDIO driver,
nowhere else in the entire kernel. Move the struct into the
driver and delete the external header.
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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A previous patch had removed esdhc_of_platform_init() by mistake.
static void esdhc_of_platform_init(struct sdhci_host *host)
{
u32 vvn;
vvn = in_be32(host->ioaddr + SDHCI_SLOT_INT_STATUS);
vvn = (vvn & SDHCI_VENDOR_VER_MASK) >> SDHCI_VENDOR_VER_SHIFT;
if (vvn == VENDOR_V_22)
host->quirks2 |= SDHCI_QUIRK2_HOST_NO_CMD23;
if (vvn > VENDOR_V_22)
host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ;
}
This patch is used to fix it by add/remove some quirks according to
verdor version in probe.
Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
Fixes: f4932cfd22f1 ("mmc: sdhci-of-esdhc: support both BE and LE host controller")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The atmci_convert_chksize() function is no more valid for controller
version 0x600 due to the introduction of '2 data' chunk size.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Remove atmel-mci-regs.h file since it has been merged in atmel-mci.c.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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atmel-mci-regs.h is only included in atmel-mci.c so move its content in
the driver and do some cleanup in these definitions to remove checkpatch
errors.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The mmc pm notifiers were recently reworked, but the new
code produces a lot of warnings when CONFIG_PM_SLEEP is disabled:
In file included from ../drivers/mmc/core/sdio_bus.c:27:0:
drivers/mmc/core/core.h:97:13: warning: 'mmc_register_pm_notifier' defined but not used [-Wunused-function]
The obvious solution is to add the 'inline' keyword at the
function definition, as it should be for any function defined
in a header file.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 0e40be7c20e0 ("mmc: core: Refactor code to register the MMC PM notifier")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Here we use '|=' to set the tuning-step, but before that, we should
clear the tuning-step, otherwise we could got the wrong setting.
Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Acked-by: Dong Aisheng <aisheng.dong@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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When compiling the sh_mmcif driver for ARM64, we currently
get a harmless build warning:
../drivers/mmc/host/sh_mmcif.c: In function 'sh_mmcif_request_dma_one':
../drivers/mmc/host/sh_mmcif.c:417:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
(void *)pdata->slave_id_tx :
^
../drivers/mmc/host/sh_mmcif.c:418:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
(void *)pdata->slave_id_rx;
This could be worked around by adding another cast to uintptr_t, but
I decided to simplify the code a little more to avoid that. This
splits out the platform data using code into a separate function
and builds that only for CONFIG_SUPERH. This part still has a typecast
but does not need a second one. The SH platform code could be further
modified to pass a pointer directly as we do on other architectures
when we have a filter function.
The normal case is simplified further and now just calls
dma_request_slave_channel() directly without going through the
compat handling.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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This is a trivial patch which fixes printed strings split across two
or more lines in the source. I tried to grep for some error output*,
but I couldn't find it easily because it was broken across multiple
lines. This patch makes my life easier.
* in particular "Timeout waiting for hardware interrupt."
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The mmc_pwrseq_ops structures are never modified, so declare them as const.
Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The data in the SoC description structures is static and can therefore
reside in read-only memory.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add runtime PM support and use runtime_force_suspend|resume() for system
PM.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Fault-injection capability for MMC IO uses debugfs entries to configure
the attributes.
FAULT_INJECTION_DEBUG_FS must be enabled to use FAIL_MMC_REQUEST.
Replace FAULT_INJECTION with FAULT_INJECTION_DEBUG_FS.
Also remove 'select DEBUG_FS' since FAULT_INJECTION_DEBUG_FS depends on
it.
Signed-off-by: Adrien Schildknecht <adrien+dev@schischi.me>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Use kmalloc instead of kzalloc, as zeroing the memory isn't needed.
Signed-off-by: yalin wang <yalin.wang2010@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Turn the informative message about no vmmc/vqmmc regulator found in
debug one. There is no need to indicate that something optional is
missing. Moreover, it can bring confusion, people who doesn't know
it is optional may consider these messages as warnings or errors.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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_mmc_detect_card_removed() validates that the card is removable, but when
being called via the bus_ops ->detect() callbacks, the validation is
redundant as it's already done in mmc_rescan().
Move the validation of a removable card to the mmc_detect_card_removed()
API, which is where it's applicable, to allow the blk error recovery path
to get the response a bit earlier.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Instead of checking for "#ifdef" directly in the code, let's invent a pair
of mmc core functions to deal with register/unregister the MMC PM notifier
block. Implement stubs for these functions when CONFIG_PM_SLEEP is unset,
as in that case the PM notifiers isn't used.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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MMC_CAP_RUNTIME_RESUME was invented to decrease system PM resume time for
systems that particularly needs this. As the feature has matured let's
make it the default behavior for MMC/SD.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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As mmc_claim_host() invokes pm_runtime_get_sync() for the mmc host device,
it's important that the host is kept claimed for *all* accesses to it via
the host_ops callbacks.
In mmc_rescan(), the ->card_event() and the ->get_cd() callback are being
invoked without claiming the host, let's fix this.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The ->card_event() callback may be called when re-scan is disabled and for
non-removable cards, which both cases are unnecessary.
Instead let's move the call later in mmc_rescan() where these constraints
have been validated.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The driver will not probe without valid DMA channels so no need to check
if they are valid when the module is removed.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
CC: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
[geert: Rebased]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Though the mmc core driver should/will continue to support the legacy
"enable-sdio-wakeup" property to enable SDIO as the wakeup source, we
need to add support for the new standard property "wakeup-source".
This patch adds support for "wakeup-source" property in addition to the
existing "enable-sdio-wakeup" property.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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If we fail to reconstruct the BIOS fb (e.g., because the FB is too
large), we'll be left with plane state that indicates the primary plane
is visible yet has a NULL fb. This mismatch causes problems later on
(e.g., for the watermark code). Since we've failed to reconstruct the
BIOS FB, the best solution is to just disable the primary plane and
pretend the BIOS never had it enabled.
v2: Add intel_pre_disable_primary() call (Maarten)
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: drm-intel-fixes@lists.freedesktop.org
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1449171462-30763-2-git-send-email-matthew.d.roper@intel.com
(cherry picked from commit 200757f5d7c6f7f7032a0a07bbb8c02a840bbf7d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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As we mark the preallocated objects as bound, we should also flag them
correctly as being map-and-fenceable (if appropriate!) so that later
users do not get confused and try and rebind the pinned vma in order to
get a map-and-fenceable binding.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Goel, Akash" <akash.goel@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: drm-intel-fixes@lists.freedesktop.org
Link: http://patchwork.freedesktop.org/patch/msgid/1448029000-10616-1-git-send-email-chris@chris-wilson.co.uk
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit d0710abbcd88b1ff17760e97d74a673e67b49ea1)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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The cursor code tries to treat base==0 to mean disabled. That fails
when the cursor bo gets bound at ggtt offset 0, and the user is left
looking at an invisible cursor.
We lose the disabled->disabled optimization, but that seems like
something better handled at a slightly higher level.
Cc: drm-intel-fixes@lists.freedesktop.org
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1450091808-32607-3-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
(cherry picked from commit 663f3122d00c0b412d429f105dca129aa8f4f094)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Like the previous designs, the A80 has a special pin controller for the
critical pins, like the PMIC bus.
Add a driver for this controller.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
[wens: Add A80 compatible strings to bindings doc; fix pin function
names based on v1.3 datasheet; constify of_device_id table]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Without this patch, internal speaker and line-out work,
but front headphone output jack stays silent on the
Mac Pro 4,1.
This code path also gets executed on the MacPro 5,1 due
to identical codec SSID, but i don't know if it has any
positive or adverse effects there or not.
(v2) Implement feedback from Takashi Iwai: Reuse
alc889_fixup_mbp_vref and just add a new nid
0x19 for the MacPro 4,1.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
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Eryu Guan reported that loading scsi_debug would fail. This turned out
to be caused by scsi_debug reporting an optimal I/O size of 32KB which
is smaller than the 64KB page size on the PowerPC system in question.
Add a check to ensure that we only use the device-reported OPTIMAL
TRANSFER LENGTH if it is bigger than or equal to the page cache size.
Reported-by: Eryu Guan <guaneryu@gmail.com>
Reported-by: Ming Lei <tom.leiming@gmail.com>
Reviewed-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Daniele Palmas says:
====================
net: usb: cdc_ncm: Adding support for two new Dell devices
This patch series add support in the cdc_ncm driver for two devices
based on the same platform, that are different only for carrier
customization.
V2: Added comment for highlighting FLAG_NOARP usage for those devices
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Unlike DW5550, Dell DW5813 is a mobile broadband card with no ARP
capabilities: the patch makes this device to use wwan_noarp_info struct
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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