Below compilation warnings are observed in gcc version 4.8.2.
Even though it's not seen in bit older gcc versions (for ex, 4.7.3),
It's good to fix it by changing format specifier from %d to
%zd in wmi pull phyerr functions.
wmi.c: In function 'ath10k_wmi_op_pull_phyerr_ev':
wmi.c:3567:8: warning: format '%d' expects argument of type 'int',
but argument 4 has type 'long unsigned int' [-Wformat=]
left_len, sizeof(*phyerr));
^
wmi.c: In function 'ath10k_wmi_10_4_op_pull_phyerr_ev':
wmi.c:3612:8: warning: format '%d' expects argument of type 'int',
but argument 4 has type 'long unsigned int' [-Wformat=]
left_len, sizeof(*phyerr));
^
Fixes: 991adf71a6 ("ath10k: refactor phyerr event handlers")
Fixes: 2b0a2e0d7c ("ath10k: handle 10.4 firmware phyerr event")
Signed-off-by: Raja Mani <rmani@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This adds additional 0x0041 PCI Device ID
definition to ath10k for QCA6164 which is a 1
spatial stream sibling of the QCA6174 (which is 2
spatial stream chip).
The QCA6164 needs a dedicated board.bin file which
is different than the one used for QCA6174. If the
board.bin is wrong the device will crash early
while trying to boot firmware. The register dump
will look like this:
ath10k_pci 0000:02:00.0: firmware register dump:
ath10k_pci 0000:02:00.0: [00]: 0x05010000 0x000015B3 0x000A012D 0x00955B31
...
Note the value 0x000A012D.
Special credit goes to Alan Liu
<alanliu@qca.qualcomm.com> for providing support
help which enabled me to come up with this patch.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
To enable/configure spectral scan parameters in 10.4 firmware, existing
wmi spectral related functions can be reused. Link those functions in
10.4 wmi ops table.
In addition, adjust bin size (only when size is 68 bytes) before reporting
bin samples to user space. The background for this adjustment is that
qca99x0 reports bin size as 68 bytes (64 bytes + 4 bytes) in report
mode 2. First 64 bytes carries in-band tones (-32 to +31) and last 4 byte
carries band edge detection data (+32) mainly used in radar detection
purpose. Additional last 4 bytes are stripped to make bin size valid one.
This bin size adjustment will happen only for qca99x0, all other chipsets
will report proper bin sizes (64/128) without extra 4 bytes being added
at the end. The changes are validated in qca99x0 using 10.4 firmware.
Signed-off-by: Raja Mani <rmani@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
The function returns 1 when DMA mapping fails. The
driver would return bogus values and could
possibly confuse itself if DMA failed.
Fixes: 767d34fc67 ("ath10k: remove DMA mapping wrappers")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Kernel would complain about leaving a held lock
after going back to userspace and would
subsequently deadlock.
Fixes: e04cafbc38 ("ath10k: fix peer limit enforcement")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
As per CCF documentation (clk.txt) the clk_prepare/unprepare APIs
are not allowed in atomic context. But now OMAP GPIO driver
uses them while applying debounce settings and as part
of PM runtime irqsafe operations:
- omap_gpio_debounce() is holding the lock with IRQs off.
+ omap2_set_gpio_debounce()
+ clk_prepare_enable()
+ clk_prepare() this one might sleep.
- pm_runtime_get_sync() is holding the lock with IRQs off
+ omap_gpio_runtime_suspend()
+ raw_spin_lock_irqsave()
+ omap_gpio_dbck_disable()
+ clk_disable_unprepare()
Hence, fix it by moeving dbclk prepare/unprepare in OMAP GPIO
omap_gpio_probe/omap_gpio_remove. Also, while here, ensure that
debounce functionality is disabled if clk_get() failed,
because otherwise kernel will carsh in omap2_set_gpio_debounce().
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The access to HW registers has to be be protected in
omap_gpio_irq_handler(), as it may race with code executed on
another CPUs.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
According to TRMs:
Required input line stable =
(the value of the GPIO_DEBOUNCINGTIME[7:0].DEBOUNCETIME + 1) × 31,
where the value of the GPIO_DEBOUNCINGTIME[7:0].DEBOUNCETIME bit field
is from 0 to 255.
But now omap2_set_gpio_debounce() will calculate debounce time and
behave incorrectly in the following cases:
1) requested debounce time is !0 and <32
calculated DEBOUNCETIME = 0x1 == 62 us;
expected value of DEBOUNCETIME = 0x0 == 31us
2) requested debounce time is 0
calculated DEBOUNCETIME = 0x1 == 62 us;
expected: disable debounce and DEBOUNCETIME = 0x0
3) requested debounce time is >32 and <63
calculated DEBOUNCETIME = 0x0 and debounce will be disabled;
expected: enable debounce and DEBOUNCETIME = 0x1 == 62 us
Hence, rework omap2_set_gpio_debounce() to fix above cases:
1) introduce local variable "enable" and use it to identify
when debounce need to be enabled or disabled. Disable debounce
if requested debounce time is 0.
2) use below formula for debounce time calculation:
debounce = (DIV_ROUND_UP(debounce, 31) - 1) & 0xFF;
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Switch OMAP GPIO driver to use platform_get_irq(), because
it is not recommened to use platform_get_resource(pdev, IORESOURCE_IRQ, ..)
for requesting IRQ resources any more, as they can be not ready yet
in case of DT-boot.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The at91-specific irq_{request,release}_resources() callbacks are
identical to the generic ones, modulo the bug fix in 5b76e79c77
("gpiolib: irqchip: prevent driver unloading if gpio is used as irq
only").
Until commit 8b67a1f0ad ("gpio: don't override irq_*_resources()
callbacks"), the buggy at91-specific callbacks were never used, though.
Hence drop the at91-specific ones in favor of the generic ones.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When running -rt kernel and an interrupt happens on a GPIO line controlled by
Intel Cherryview/Braswell pinctrl driver we get:
BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:917
in_atomic(): 1, irqs_disabled(): 1, pid: 0, name: swapper/0
Preemption disabled at:[<ffffffff81092e9f>] cpu_startup_entry+0x17f/0x480
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.1.5-rt5 #16
...
Call Trace:
<IRQ> [<ffffffff816283c6>] dump_stack+0x4a/0x61
[<ffffffff81077e17>] ___might_sleep+0xe7/0x170
[<ffffffff8162d6cf>] rt_spin_lock+0x1f/0x50
[<ffffffff812e52ed>] chv_gpio_irq_ack+0x3d/0xa0
[<ffffffff810a72f5>] handle_edge_irq+0x75/0x180
[<ffffffff810a3457>] generic_handle_irq+0x27/0x40
[<ffffffff812e57de>] chv_gpio_irq_handler+0x7e/0x110
[<ffffffff810050aa>] handle_irq+0xaa/0x190
...
This is because desc->lock is raw_spinlock and is held when chv_gpio_irq_ack()
is called by the genirq core. chv_gpio_irq_ack() in turn takes pctrl->lock
which in -rt is an rt-mutex causing might_sleep() rightfully to complain about
sleeping function called from invalid context.
In order to keep -rt happy but at the same time make sure that register
accesses get serialized, convert the driver to use raw_spinlock instead.
Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Intel Baytrail pinctrl driver implements irqchip callbacks which are
called with desc->lock raw_spinlock held. In mainline this is fine because
spinlock resolves to raw_spinlock. However, running the same code in -rt we
get:
BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:917
in_atomic(): 1, irqs_disabled(): 1, pid: 0, name: swapper/0
Preemption disabled at:[<ffffffff81092e9f>] cpu_startup_entry+0x17f/0x480
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.1.5-rt5 #13
...
Call Trace:
<IRQ> [<ffffffff816283c6>] dump_stack+0x4a/0x61
[<ffffffff81077e17>] ___might_sleep+0xe7/0x170
[<ffffffff8162d6cf>] rt_spin_lock+0x1f/0x50
[<ffffffff812e3b88>] byt_gpio_clear_triggering+0x38/0x60
[<ffffffff812e3bc1>] byt_irq_mask+0x11/0x20
[<ffffffff810a7013>] handle_level_irq+0x83/0x150
[<ffffffff810a3457>] generic_handle_irq+0x27/0x40
[<ffffffff812e3a5f>] byt_gpio_irq_handler+0x7f/0xc0
[<ffffffff810050aa>] handle_irq+0xaa/0x190
...
This is because in -rt spinlocks are preemptible so taking the driver
private spinlock in irqchip callbacks causes might_sleep() to trigger.
In order to keep -rt happy but at the same time make sure that register
accesses get serialized, convert the driver to use raw_spinlock instead.
Also shorten the critical section a bit in few places.
Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
v2: fix one error found by checkpath.pl
v3: Add one ignored break for switch-case. DDI-E hotplug
function doesn't work after updating drm-intel tree,
I checked the code and found this missing which isn't
the root cause for broke DDI-E hp. The broken
DDI-E hp function is fixed by "Adding DDI_E power
well domain".
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Tested-by: Timo Aaltonen <timo.aaltonen@canonical.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Since Surface Pro 3 does not follow the specs of "Windows ACPI Design
Guide for SoC Platform", code in drivers/input/misc/soc_array.c can
not detect these buttons on it. According to bios implementation,
Surface Pro 3 encapsulates these buttons in a device named "VGBI",
with _HID "MSHW0028". When any of the buttons is pressed, a specify
ACPI notification code for this button will be delivered to "VGBI". For
example, if power button is pressed down, ACPI notification code of 0xc6
will be sent by Notify(VGBI, 0xc6).
This patch leverages "VGBI" to distinguish different ACPI notification
code from Power button, Home button, Volume button, then dispatches these
code to input layer. Lid is already covered by acpi button driver, so
there's no need to rewrite.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=84651
Tested-by: Ethan Schoonover <es@ethanschoonover.com>
Tested-by: Peter Amidon <psa.pub.0@picnicpark.org>
Tested-by: Donavan Lance <tusklahoma@gmail.com>
Tested-by: Stephen Just <stephenjust@gmail.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
[dvhart@linux.intel.com: Formatting corrections in MAINTAINERS and Intel (c)]
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
The gtt.stolen_size field is of type size_t, and so should be printed
using %zu to avoid build warnings on either 32-bit and 64-bit builds.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
SKL-Y can now use the same programming for all VccIO values after an
adjustment to I_boost. SKL-U DP table adjustments.
1. Remove SKL Y 0.95V from "SKL H and S" columns in all tables. The
other SKL Y column removes the "0.85V VccIO" so it now applies to all
voltages.
2. DP table changes SKL U 400mV+0db dword 0 value from 2016h to 201Bh.
3. DP table changes SKL U 600mv+0db dword 0 value from 2016h to 201Bh.
4. DP table increases I_boost to level 3 for SKL Y 400mv+9.5db.
v2: Fix compilation warnings as pointed by Paulo.
Reference: Graphics Spec Change r97962
Cc: Arthur Runyan <arthur.j.runyan@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[Jani: reformatted commit message for shorter lines.]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
acpi_bus_register_driver() already returns an appropriate value (0 on
success, and some negative value on error) to be used in __init functions
so the goto/label is redundant in hpwl_init thus remove it and directly
return the value
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
The registers will be reset to default values when whole
power domain off, so restore registers from regsbak.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Win2/3 support multiple area function, but we haven't found
a suitable way to use it yet, so let's just use them as other windows
with only area 0 enabled.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
vir_stride need number words of the virtual width, and fb->pitches
save bytes_per_pixel, so just div 4 switch to stride.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
When snd_hdac_refresh_widget_sysfs() is called before the first
hda_widget_sysfs_init(), the next call overrides and eventually
fails. This results in unexpected Oops, something like:
BUG: unable to handle kernel NULL pointer dereference at 00000000000000c8
IP: [<ffffffff8180e2a3>] hdmi_chmap_ctl_info+0x23/0x40
The fix is to add a check of the existing sysfs tree. Also, for more
safety, this patch adds the checks of device_is_registered() in
snd-hdac_refresh_wdiget_sysfs(), too.
Fixes: fa4f18b4f4 ('ALSA: hda - Refresh widgets sysfs at probing Haswell+ HDMI codecs')
Bugizlla: https://bugzilla.kernel.org/show_bug.cgi?id=103431
Reported-by: Andreas Reis <andreas.reis@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
It is needed to check EVENT_NO_RUNTIME_PM bit of dev->flags in
usbnet_stop(), but its value should be read before it is cleared
when dev->flags is set to 0.
The problem was spotted and the fix was provided by
Oliver Neukum <oneukum@suse.de>.
Signed-off-by: Eugene Shatokhin <eugene.shatokhin@rosalab.ru>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sparse reported:
drivers/dma/ioat/prep.c:637:27: sparse: Variable length array is used.
Assigning a static value for the array.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
The prep lock gets acquired in ioat_check_space_lock and released in
ioat_tx_submit_unlock. Setting the annotations so sparse does not freak out.
drivers/dma/ioat/dma.c:273:30: sparse: context imbalance in 'ioat_tx_submit_unlock' - unexpected unlock
drivers/dma/ioat/dma.c:476:5: sparse: context imbalance in 'ioat_check_space_lock' - wrong count at exit
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Just like for the XDMAC, the SoCs that embed the HDMAC don't have any kind
of GPU, and need to accelerate a few framebuffer-related operations through
their DMA controller.
However, unlike the XDMAC, the HDMAC doesn't have the memset capability
built-in. That can be easily emulated though, by doing a transfer with a
fixed address on the variable that holds the value we want to set.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Pull LSM regression fix from James Morris.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
LSM: restore certain default error codes
Pull nvdimm fix from Dan Williams:
"A single fix for status register read size in the nd_blk driver.
The effect of getting the width of this register read wrong is that
all I/O fails when the read returns non-zero. Given the availability
of ACPI 6 NFIT enabled platforms, this could reasonably wait to come
in during the 4.3 merge window with a tag for 4.2-stable. Otherwise,
this makes the 4.2 kernel fully functional with devices that conform
to the mmio-block-apertures defined in the ACPI 6 NFIT (NVDIMM
Firmware Interface Table)"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nfit, nd_blk: BLK status register is only 32 bits
PCC is made selectable only by clients which use it. e.g. CPPC
Default it to disabled so that it is not included accidentally on
platforms which dont use it.
Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Reviewed-by: Al Stone <al.stone@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In commit 1e052be69d ("net_sched: destroy proto tp when all filters are gone")
I added a check in u32_destroy() to see if all real filters are gone
for each tp, however, that is only done for root_ht, same is needed
for others.
This can be reproduced by the following tc commands:
tc filter add dev eth0 parent 1:0 prio 5 handle 15: protocol ip u32 divisor 256
tc filter add dev eth0 protocol ip parent 1: prio 5 handle 15:2:2 u32
ht 15:2: match ip src 10.0.0.2 flowid 1:10
tc filter add dev eth0 protocol ip parent 1: prio 5 handle 15:2:3 u32
ht 15:2: match ip src 10.0.0.3 flowid 1:10
Fixes: 1e052be69d ("net_sched: destroy proto tp when all filters are gone")
Reported-by: Akshat Kakkar <akshat.1984@gmail.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
Documentation: dsa
This patch series adds some documentation about DSA as a subsystem as well
as the SF2 driver since it slightly diverges from your average DSA driver ;)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a document describing the Broadcom Starfigther 2 switch hardware,
its specifics, and how the driver is implemented and its specifics.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While in most cases commit b1d9e6b064 ("LSM: Switch to lists of hooks")
retained previous error returns, in three cases it altered them without
any explanation in the commit message. Restore all of them - in the
security_old_inode_init_security() case this led to reiserfs using
uninitialized data, sooner or later crashing the system (the only other
user of this function - ocfs2 - was unaffected afaict, since it passes
pre-initialized structures).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Potentially one of platform can support both ACPI and OF. In that case when we
call to_of_node() for non-OF fwnode types we will get non-NULL result, which is
wrong. Check for the type and return a correspondent result.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Obviously in the current place the 'else' keyword is redundant, though it seems
quite correct when we check if nval is in allowed range.
Reattach the condition branch there.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In order to ensure atomicity of updates, we merge the old layout segments
into the new ones, and then invalidate the old ones.
Also ensure that we order the list of layout segments so that
RO segments are preferred over RW.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
