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Sprinkled all through the platform clock drivers are code like this to
fill the clock parent array:
for (i = 0; i < num_parents; ++i)
parent_names[i] = of_clk_get_parent_name(np, i);
The of_clk_parent_fill() will do the same as the code above, and while
at it, return the number of parents as well since the logic of the
function is to the walk the clock node to look for the parent.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
[sboyd@codeaurora.org: Fixed kernel-doc]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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I've had reports of UEFI platforms failing iSCSI boot in various
configurations, that ended up being caused by network initialization
scripts getting tripped up by unexpected null addresses (0.0.0.0) being
reported for gateways, dhcp servers, and dns servers.
The tianocore EDK2 iSCSI driver generates an iBFT table that always uses
IPv4-mapped IPv6 addresses for the NIC structure fields. This results
in values that are "not present or not specified" being reported as
::ffff:0.0.0.0 rather than all zeros as specified.
The iscsi_ibft module filters unspecified fields from the iBFT from
sysfs, preventing userspace from using invalid values and making it easy
to check for the presence of a value. This currently fails in regard to
these mapped null addresses.
In order to remain consistent with how the iBFT information is exposed,
we should accommodate the behavior of the tianocore iSCSI driver as it's
already in the wild in a large number of servers.
Tested under qemu using an OVMF build of tianocore EDK2.
Signed-off-by: Chris Leech <cleech@redhat.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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* clk-meson8b:
clk: meson8b: Add support for Meson8b clocks
clk: meson: Document bindings for Meson8b clock controller
clk: meson: Add support for Meson clock controller
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This patch adds support for the basic clocks found on the Amlogic
Meson8b SoCs.
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Add documentation for the clock controller.
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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This patchset adds the infrastructure for registering and managing the
core clocks found on Amlogic MesonX SoCs. In particular:
- PLLs
- CPU clock
- Fixed rate clocks, fixed factor clocks, ...
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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The map_single() function is not defined as static, even though it
doesn't seem to be used anywhere else in the kernel. Make it static to
avoid namespace pollution since this is a rather generic symbol.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Writing to a file is supposed to return the number of bytes written.
Returning zero unfortunately causes bash to constantly spin trying
to write to the sysfs file, to such an extent that even ^c and ^z
have no effect. The only way out of that is to kill the shell and
log back in. This isn't nice behaviour.
Fix it by returning the number of characters written to sysfs files.
[airlied: used suggestion from Al Viro]
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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git://anongit.freedesktop.org/drm-intel into drm-fixes
bunch of i915 fixes.
* tag 'drm-intel-fixes-2015-06-05' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Move WaBarrierPerformanceFixDisable:skl to skl code from chv code
drm/i915: Include G4X/VLV/CHV in self refresh status
drm/i915: Initialize HWS page address after GPU reset
drm/i915: Don't skip request retirement if the active list is empty
drm/i915/hsw: Fix workaround for server AUX channel clock divisor
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"Resource management
- Fix IOV sorting by alignment (Wei Yang)
- Preserve resource size during alignment reordering (Yinghai Lu)
Miscellaneous
- MAINTAINERS: Add Pratyush for SPEAr13xx and DesignWare PCIe (Pratyush Anand)"
* tag 'pci-v4.1-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Preserve resource size during alignment reordering
PCI: Fix IOV resource sorting by alignment requirement
MAINTAINERS: Add Pratyush Anand as SPEAr13xx and DesignWare PCIe maintainer
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"It was a fairly calm week; here you can find only a few trivial quirks
and fixes for USB and HD-audio. All changes are pretty device
specific"
* tag 'sound-4.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: fix missing input volume controls in MAYA44 USB(+)
ALSA: usb-audio: add MAYA44 USB+ mixer control names
ALSA: hda/realtek - Add a fixup for another Acer Aspire 9420
ALSA: hda - Fix jack detection at resume with VT codecs
ALSA: usb-audio: don't try to get Outlaw RR2150 sample rate
ALSA: usb-audio: Add mic volume fix quirk for Logitech Quickcam Fusion
ALSA: hda/realtek - Suooprt Dell headset mode for ALC256
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fix from Joerg Roedel:
"Only one patch:
- Revert "iommu/amd: Don't allocate with __GFP_ZERO in
alloc_coherent".
This patch caused problems with some drivers, so it is better to
revert it now until the drivers have been fixed"
* tag 'iommu-fixes-v4.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
Revert "iommu/amd: Don't allocate with __GFP_ZERO in alloc_coherent"
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Misc fixes:
- early_idt_handlers[] fix that fixes the build with bleeding edge
tooling
- build warning fix on GCC 5.1
- vm86 fix plus self-test to make it harder to break it again"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm/irq: Stop relying on magic JMP behavior for early_idt_handlers
x86/asm/entry/32, selftests: Add a selftest for kernel entries from VM86 mode
x86/boot: Add CONFIG_PARAVIRT_SPINLOCKS quirk to arch/x86/boot/compressed/misc.h
x86/asm/entry/32: Really make user_mode() work correctly for VM86 mode
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"The biggest chunk of the changes are two regression fixes: a HT
workaround fix and an event-group scheduling fix. It's been verified
with 5 days of fuzzer testing.
Other fixes:
- eBPF fix
- a BIOS breakage detection fix
- PMU driver fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/pt: Fix a refactoring bug
perf/x86: Tweak broken BIOS rules during check_hw_exists()
perf/x86/intel/pt: Untangle pt_buffer_reset_markers()
perf: Disallow sparse AUX allocations for non-SG PMUs in overwrite mode
perf/x86: Improve HT workaround GP counter constraint
perf/x86: Fix event/group validation
perf: Fix race in BPF program unregister
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Pull drm fixes from Dave Airlie:
"Just two small fixes: one radeon, one amdkfd"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/amdkfd: fix topology bug with capability attr.
drm/radeon: use proper ACR regisiter for DCE3.2
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c bug fixes from Wolfram Sang:
"Two small bugfixes for I2C"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: s3c2410: fix oops in suspend callback for non-dt platforms
i2c: hix5hd2: Fix modalias to make module auto-loading work
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git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for v4.1-rc7
Here are a couple of new device ids.
Signed-off-by: Johan Hovold <johan@kernel.org>
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On some v7 devices (e.g. Lenovo-E550) the deltas reported are typically
only in the 0-1 range dividing this by 2 results in a range of 0-0.
And even for v7 devices where this does not lead to making the trackstick
entirely unusable, it makes it twice as slow as before we added v7 support
and were using the ps/2 mouse emulation of the dual point setup.
If some kind of generic slowdown is actually necessary for some devices,
then that belongs in userspace, not in the kernel.
Cc: stable@vger.kernel.org
Reported-and-tested-by: Rico Moorman <rico.moorman@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This adds new icbody type to the list recognized by Elantech PS/2 driver.
Cc: stable@vger.kernel.org
Signed-off-by: Sam Hung <sam.hung@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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"IS_ENABLED(PPC_PSERIES)" always evaluates to false, as IS_ENABLED() is
supposed to be used with the full Kconfig symbol name, including the
"CONFIG_" prefix.
Add the missing "CONFIG_" prefix to fix this.
Fixes: a25095d451ece23b ("of: Move dynamic node fixups out of powerpc and into common code")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: stable@vger.kernel.org #+3.17
Signed-off-by: Grant Likely <grant.likely@linaro.org>
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In the functions compat_get_bitmap() and compat_put_bitmap() the
variable nr_compat_longs stores how many compat_ulong_t words should be
copied in a loop.
The copy loop itself is this:
if (nr_compat_longs-- > 0) {
if (__get_user(um, umask)) return -EFAULT;
} else {
um = 0;
}
Since nr_compat_longs gets unconditionally decremented in each loop and
since it's type is unsigned this could theoretically lead to out of
bounds accesses to userspace if nr_compat_longs wraps around to
(unsigned)(-1).
Although the callers currently do not trigger out-of-bounds accesses, we
should better implement the loop in a safe way to completely avoid such
warp-arounds.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
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Since commit 2893c379461a ("clk: make strings in parent name arrays
const") the name of parent clocks can be const. So add more const in
several clock drivers.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Added the USB serial device ID for the HubZ dual ZigBee
and Z-Wave radio dongle.
Signed-off-by: John D. Blair <johnb@candicontrols.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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The size of clk_data should be the same as CLK_APMIXED_NR_CLK
instead of ARRAY_SIZE(plls). CLK_APMIXED_* is numbered from 1, so
CLK_APMIXED_NR_CLK will be greater than ARRAY_SIZE(plls).
Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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When setting the PLL rates, check that:
- VCO is within range
- PFD is within range
- PLL is disabled when postdiv is changed
- postdiv2 <= postdiv1
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Currently, when the rate is changed, the driver makes sure the
PLL is enabled before doing so. This is done because the PLL
cannot be locked while disabled. Once locked, the drivers
returns the PLL to its previous enable/disable state.
This is a bit cumbersome, and can be simplified.
This commit reworks the .set_rate() functions for the integer
and fractional PLLs. Upon rate change, the PLL is now locked
only if it's already enabled.
Also, the driver locks the PLL on .enable(). This makes sure
the PLL is locked when enabled, and not locked when disabled.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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This commit adds a pll_lock() helper making the code more readable.
Cosmetic change only, no functionality changes.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Timer has external fast clock, and it is a mux clock.
Add the timer clock type for timer driver.
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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The suggested value in the mmp2 manual is wrong.
There are only 13 bits for numerator, but some suggested
value has 14 bits.
Fix the factor tabled and remove the unused items.
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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USB will drive clock from USB_PLL.
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Pull dmaengine fixes from Vinod Koul:
"We have two small fixes:
- pl330 termination hang fix by Krzysztof
- hsu memory leak fix by Peter"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: hsu: Fix memory leak when stopping a running transfer
dmaengine: pl330: Fix hang on dmaengine_terminate_all on certain boards
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Commit 066450be41 ("perf/x86/intel/pt: Clean up the control flow
in pt_pmu_hw_init()") changed attribute initialization so that
only the first attribute gets initialized using
sysfs_attr_init(), which upsets lockdep.
This patch fixes the glitch so that all allocated attributes are
properly initialized thus fixing the lockdep warning reported by
Tvrtko and Imre.
Reported-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reported-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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commit 65ca7514e21adbee25b8175fc909759c735d00ff
Author: Damien Lespiau <damien.lespiau@intel.com>
Date: Mon Feb 9 19:33:22 2015 +0000
drm/i915/skl: Implement WaBarrierPerformanceFixDisable
got misapplied and the code landed in chv_init_workarounds() instead of
the intended skl_init_workarounds(). Move it over to the right place.
Cc: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Add all missing platforms handled by intel_set_memory_cxsr() to the
i915_sr_status debugfs entry.
v2: Add G4X too. (Ville)
Clarify the change also affects CHV. (Ander)
References: https://bugs.freedesktop.org/show_bug.cgi?id=89792
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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After GPU reset, HW is losing the address of HWS page in the register.
The page itself is valid except that HW is not aware of its location.
[ 64.368623] [drm:gen8_init_common_ring [i915]] *ERROR* HWS Page address = 0x00000000
[ 64.368655] [drm:gen8_init_common_ring [i915]] *ERROR* HWS Page address = 0x00000000
[ 64.368681] [drm:gen8_init_common_ring [i915]] *ERROR* HWS Page address = 0x00000000
[ 64.368704] [drm:gen8_init_common_ring [i915]] *ERROR* HWS Page address = 0x00000000
This patch reloads this value into the register during ring init.
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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git://people.freedesktop.org/~gabbayo/linux into drm-fixes
One minor fix for last -rc of 4.1. The fix moves the update of an attribute in
topology to *after* it is actually initialized.
* tag 'drm-amdkfd-fixes-2015-06-03' of git://people.freedesktop.org/~gabbayo/linux:
drm/amdkfd: fix topology bug with capability attr.
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into drm-fixes
One more small r7xx audio regression fix for 4.1
* 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: use proper ACR regisiter for DCE3.2
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Pull block layer fixes from Jens Axboe:
"Sending this off now, as I'm not aware of other current bugs, nor do I
expect further fixes before 4.1 final. This contains two fixes:
- a fix for a bdi unregister warning that gets spewed on md, due to a
regression introduced earlier in this cycle. From Neil Brown.
- a fix for a compile warning for NVMe on 32-bit platforms, also a
regression introduced in this cycle. From Arnd Bergmann"
* 'for-linus' of git://git.kernel.dk/linux-block:
NVMe: fix type warning on 32-bit
block: discard bdi_unregister() in favour of bdi_destroy()
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OSDL has been gone for many years, looks like there still was
one reference to it.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Conflicts:
drivers/clk/Kconfig
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This driver supports the TI CDCE925 programmable clock synthesizer.
The chip contains two PLLs with spread-spectrum clocking support and
five output dividers. The driver only supports the following setup,
and uses a fixed setting for the output muxes:
Y1 is derived from the input clock
Y2 and Y3 derive from PLL1
Y4 and Y5 derive from PLL2
Given a target output frequency, the driver will set the PLL and
divider to best approximate the desired output.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
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Even if not documented in the datasheet, the Armada 370 SoC can actually
gate the CESA (crypto engine) clock.
Add an entry in the gating_desc table to be able to reference the CESA
gateclk in the crypto node.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
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Add clock drivers for hi6220 SoC, this driver controls the SoC
registers to supply different clocks to different IPs in the SoC.
We add one divider clock for hi6220 because the divider in hi6220
also has a mask bit but it doesnot obey the rule defined by flag
"CLK_DIVIDER_HIWORD_MASK", we can not get index of the mask bit by
left shift fixed bits (e.g. 16 bits), so we add this divider clock
to handle it.
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: Bintian Wang <bintian.wang@huawei.com>
Acked-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Tested-by: Will Deacon <will.deacon@arm.com>
Tested-by: Tyler Baker <tyler.baker@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
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This patch fixes a bug where the number of watch points
was shown before it was actually calculated
Signed-off-by: Alexey Skidanov <Alexey.Skidanov@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
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Add the header file "hi6220-clock.h" used by both
hi6220 clock driver and hi6220 device tree file.
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Bintian Wang <bintian.wang@huawei.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Tested-by: Tyler Baker <tyler.baker@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
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__init markings on function prototypes are useless, so remove
them.
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Bintian Wang <bintian.wang@huawei.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Tested-by: Tyler Baker <tyler.baker@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
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strnlen_user() can return a number in a range 0 to count +
sizeof(unsigned long) - 1. Clarify the comment at the top of the
function so that users don't think the function returns at most count+1.
Signed-off-by: Jan Kara <jack@suse.cz>
[ Also added commentary about preferably not using this function ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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