Commit graph

547,358 commits

Author SHA1 Message Date
Johan Hedberg
d8949aad3e Bluetooth: Delay check for conn->smp in smp_conn_security()
There are several actions that smp_conn_security() might make that do
not require a valid SMP context (conn->smp pointer). One of these
actions is to encrypt the link with an existing LTK. If the SMP
context wasn't initialized properly we should still allow the
independent actions to be done, i.e. the check for the context should
only be done at the last possible moment.

Reported-by: Chuck Ebbert <cebbert.lkml@gmail.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org # 4.0+
2015-09-17 12:28:27 +02:00
Thomas Hellstrom
b07bb761cf drm/vmwgfx: Only build on X86
ioremap_cache() is currently not available on some architectures.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
2015-09-17 02:13:42 -07:00
Takashi Iwai
2338f73d40 leds:lp55xx: Correct Kconfig dependency for f/w user helper
The commit [b67893206f: leds:lp55xx: fix firmware loading error]
tries to address the firmware file handling with user helper, but it
sets a wrong Kconfig CONFIG_FW_LOADER_USER_HELPER_FALLBACK.  Since the
wrong option was enabled, the system got a regression -- it suffers
from the unexpected long delays for non-present firmware files.

This patch corrects the Kconfig dependency to the right one,
CONFIG_FW_LOADER_USER_HELPER.  This doesn't change the fallback
behavior but only enables UMH when needed.

Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=944661
Fixes: b67893206f ('leds:lp55xx: fix firmware loading error')
Cc: <stable@vger.kernel.org> # v4.2+
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17 10:02:20 +02:00
Jacek Anaszewski
35bfe456be leds: leds-ipaq-micro: Add LEDS_CLASS dependency
Fix missing Kconfig LEDS_CLASS dependency.

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2015-09-17 10:02:12 +02:00
Jacek Anaszewski
305c324f43 leds: aat1290: add 'static' modifier to init_mm_current_scale
Function init_mm_current_scale is used only locally. Make it static then.

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17 10:02:08 +02:00
Luis de Bethencourt
98f9cc7ffc leds: leds-ns2: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17 10:02:05 +02:00
Luis de Bethencourt
e3df661ff3 leds: max77693: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17 10:02:03 +02:00
Luis de Bethencourt
3682c7bdf5 leds: ktd2692: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17 10:02:00 +02:00
Luis de Bethencourt
01736f07ca leds: bcm6358: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17 10:01:57 +02:00
Luis de Bethencourt
6528ca19c1 leds: bcm6328: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17 10:01:54 +02:00
Luis de Bethencourt
93a51aa406 leds: aat1290: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17 10:01:51 +02:00
Greg Kroah-Hartman
aa1471a301 usb: fixes for v4.3-rc2
First series of fixes for v4.3-rc cycle. The major points are
 a fix to a regression which would let gadget driver disable
 an endpoint that's already disabled and a fix to MUSB to make
 sure IRQs are masked when we're going to suspend and unmasked
 on resume.
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJV+Zw6AAoJEIaOsuA1yqREdFgP/i9xNC80evxVuEJuOLvojYU0
 UWosc2/9PXLfQFfaK/RaXdY/FyHeDdOgXHkdSHDy86GGAYNY1VPhZ8qjcoxKWDZc
 ElgsRLEeCY2GwZrHewS9wnzH0lPPWEta14hXJngdOvDFYz4CyQqvEuNFUzKG1plT
 4eRN0LBuqOZTe4Mp+iYsK97DinFIi4bAVvEqApYTim8pF/s6TUMpnv8N4gJaW01M
 kwR9svduMl6vJbO6NXedpj9L+tYqr+cMhByexX543XRw5lWfoLyad8GwcH1CjEay
 gMH/cEq36baLRRdr3EvfcSI+pSlispk/VOdw+YXWtWSNStu8CMeElojAAvr5PaxO
 9WJ/Vf8c+NExjiCEOsCUrPTC7QCAubxXmikDC2UxOpcTMibBHODglQIJ/sj14LK6
 9j45T3jsu49AmTF2yKuV8CiNLT7uE8kFTirYk1AqDIyCFhNcQiy4ZQGDvd8E+uFv
 WHKA0zgJvIeeOjPNZqlifuCvaxiY1D7xCkU0O/J7JzLc6iBU3nc6mYsiG2YM3Pdu
 YovgNJMhqD/rGdFQN3d6PgPBC4JxcYluLpxxB7PWAEgqwL8eIHH85+BcmH1WYFhX
 74vVLutYJ+c6RzJPWJRu5tP/BcLlIbUD1ATJlbfyeSbiERqH0FCtxUgE0GuyZvcp
 YR9da/I3TxDzVQY+zlmS
 =TQho
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-v4.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v4.3-rc2

First series of fixes for v4.3-rc cycle. The major points are
a fix to a regression which would let gadget driver disable
an endpoint that's already disabled and a fix to MUSB to make
sure IRQs are masked when we're going to suspend and unmasked
on resume.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-16 21:33:13 -07:00
Anson Huang
8efaf5ed4d clk: imx: increase AXI clock rate to 264MHz for i.MX6UL
On i.MX6UL, AXI clock rate's design target is 264MHz, but by default
it is only set to 198MHz which is NOT good enough for performance,
this patch increases AXI clock rate from 198MHz to 264MHz to meet
the design target, this is done by switching its parent clock
"periph" from 396MHz PFD to 528MHz PLL.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-17 08:52:17 +08:00
LEROY Christophe
400c47d81c powerpc32: memset: only use dcbz once cache is enabled
memset() uses instruction dcbz to speed up clearing by not wasting time
loading cache line with data that will be overwritten.
Some platform like mpc52xx do no have cache active at startup and
can therefore not use memset(). Allthough no part of the code
explicitly uses memset(), GCC may make calls to it.

This patch modifies memset() such that at startup, memset()
unconditionally skip the optimised bloc that uses dcbz instruction.

Once the initial MMU is set up, in machine_init() we patch memset()
by replacing this inconditional jump by a NOP

Tested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-09-17 10:36:53 +10:00
LEROY Christophe
1cd03890ea powerpc32: memcpy: only use dcbz once cache is enabled
memcpy() uses instruction dcbz to speed up copy by not wasting time
loading cache line with data that will be overwritten.
Some platform like mpc52xx do no have cache active at startup and
can therefore not use memcpy(). Allthough no part of the code
explicitly uses memcpy(), GCC makes calls to it.

This patch modifies memcpy() such that at startup, memcpy()
unconditionally jumps to generic_memcpy() which doesn't use
the dcbz instruction.

Once the initial MMU is set up, in machine_init() we patch memcpy()
by replacing this inconditional jump by a NOP

Reported-by: Michal Sojka <sojkam1@fel.cvut.cz>
Tested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-09-17 10:36:44 +10:00
Roger Quadros
84ad1bab0e ARM: dts: am57xx-beagle-x15: use palmas-usb for USB2
The VBUS line of USB2 is connected to VBUS detect logic on
the PMIC. Use the palmas-usb driver to report VBUS events
to the USB driver.

As the palmas-usb driver supports GPIO based ID reporting
provide the GPIO for ID pin as well.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-09-16 17:04:26 -07:00
Grazvydas Ignotas
f4746176f9 ARM: omap2plus_defconfig: enable GPIO_PCA953X
This enables tca6424a GPIO expander driver that in turn enables
TPD12S015 HDMI ESD protection and level shifter on OMAP5 uevm.
In other words, it makes HDMI work on OMAP5 uevm.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-09-16 17:01:39 -07:00
Grazvydas Ignotas
1dbdad7507 ARM: dts: omap5-uevm.dts: fix i2c5 pinctrl offsets
The i2c5 pinctrl offsets are wrong. If the bootloader doesn't set the
pins up, communication with tca6424a doesn't work (controller timeouts)
and it is not possible to enable HDMI.

Fixes: 9be495c426 ("ARM: dts: omap5-evm: Add I2c pinctrl data")
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-09-16 17:01:39 -07:00
Dave Gerlach
08224a7d41 ARM: OMAP2+: AM43XX: Enable autoidle for clks in am43xx_init_late
Add omap2_clk_enable_autoidle_all to am43xx_init_late otherwise the call
to omap2_clk_disable_autoidle_all in am43xx_init_early may cause some
clocks to always stay active and prevent low power mode transitions.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-09-16 17:01:39 -07:00
Nishanth Menon
5005296e74 ARM: dts: am57xx-beagle-x15: Update Phy supplies
Originally, all the SoC PHY rails were supplied by LDO3. However, as a
result of characterization, it was determined that this posed a risk in
extreme load  conditions. Hence the PHY rails are split between two
different LDOs. Update the related node as a result

LDO3/VDDA_1V8_PHYA supplies vdda_usb1, vdda_usb2, vdda_sata, vdda_usb3
LDO4/VDDA_1V8_PHYB supplies vdda_pcie1, vdda_pcie0, vdda_hdmi, vdda_pcie

NOTE: We break compatibility with pre-production boards with this change
since, the PMIC LDO4 is disabled at OTP level.

The new configuration is the plan of record and all pre-production
boards are supposed to be replaced with the latest boards matching the
mentioned configuration.

Some very few 10 something boards have been created and
stopped production till the latest modifications were done (PMIC USB
interrupt, LDO4 etc) - and all of those boards are now getting
scrapped.. If there are any (as per tracking information, there should
not be any), TI should be contacted to have them replaced.

Signed-off-by: Nishanth Menon <nm@ti.com>
[tony@atomide.com: updated commit about these being TI internal protos]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-09-16 17:00:29 -07:00
Doug Anderson
7ae85dc768 ARM: 8425/1: kgdb: Don't try to stop the machine when setting breakpoints
In (23a4e40 arm: kgdb: Handle read-only text / modules) we moved to
using patch_text() to set breakpoints so that we could handle the case
when we had CONFIG_DEBUG_RODATA.  That patch used patch_text().
Unfortunately, patch_text() assumes that we're not in atomic context
when it runs since it needs to grab a mutex and also wait for other
CPUs to stop (which it does with a completion).

This would result in a stack crawl if you had
CONFIG_DEBUG_ATOMIC_SLEEP and tried to set a breakpoint in kgdb.  The
crawl looked something like:

 BUG: scheduling while atomic: swapper/0/0/0x00010007
 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.2.0-rc7-00133-geb63b34 #1073
 Hardware name: Rockchip (Device Tree)
  (unwind_backtrace) from [<c00133d4>] (show_stack+0x20/0x24)
  (show_stack) from [<c05400e8>] (dump_stack+0x84/0xb8)
  (dump_stack) from [<c004913c>] (__schedule_bug+0x54/0x6c)
  (__schedule_bug) from [<c054065c>] (__schedule+0x80/0x668)
  (__schedule) from [<c0540cfc>] (schedule+0xb8/0xd4)
  (schedule) from [<c0543a3c>] (schedule_timeout+0x2c/0x234)
  (schedule_timeout) from [<c05417c0>] (wait_for_common+0xf4/0x188)
  (wait_for_common) from [<c0541874>] (wait_for_completion+0x20/0x24)
  (wait_for_completion) from [<c00a0104>] (__stop_cpus+0x58/0x70)
  (__stop_cpus) from [<c00a0580>] (stop_cpus+0x3c/0x54)
  (stop_cpus) from [<c00a06c4>] (__stop_machine+0xcc/0xe8)
  (__stop_machine) from [<c00a0714>] (stop_machine+0x34/0x44)
  (stop_machine) from [<c00173e8>] (patch_text+0x28/0x34)
  (patch_text) from [<c001733c>] (kgdb_arch_set_breakpoint+0x40/0x4c)
  (kgdb_arch_set_breakpoint) from [<c00a0d68>] (kgdb_validate_break_address+0x2c/0x60)
  (kgdb_validate_break_address) from [<c00a0e90>] (dbg_set_sw_break+0x1c/0xdc)
  (dbg_set_sw_break) from [<c00a2e88>] (gdb_serial_stub+0x9c4/0xba4)
  (gdb_serial_stub) from [<c00a11cc>] (kgdb_cpu_enter+0x1f8/0x60c)
  (kgdb_cpu_enter) from [<c00a18cc>] (kgdb_handle_exception+0x19c/0x1d0)
  (kgdb_handle_exception) from [<c0016f7c>] (kgdb_compiled_brk_fn+0x30/0x3c)
  (kgdb_compiled_brk_fn) from [<c00091a4>] (do_undefinstr+0x1a4/0x20c)
  (do_undefinstr) from [<c001400c>] (__und_svc_finish+0x0/0x34)

It turns out that when we're in kgdb all the CPUs are stopped anyway
so there's no reason we should be calling patch_text().  We can
instead directly call __patch_text() which assumes that CPUs have
already been stopped.

Fixes: 23a4e4050b ("arm: kgdb: Handle read-only text / modules")
Reported-by: Aapo Vienamo <avienamo@nvidia.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-09-16 23:58:46 +01:00
Andre Przywara
90cde5584a ARM: 8437/1: dma-mapping: fix build warning with new DMA_ERROR_CODE definition
Commit 96231b2686: ("ARM: 8419/1: dma-mapping: harmonize definition
of DMA_ERROR_CODE") changed the definition of DMA_ERROR_CODE to use
dma_addr_t, which makes the compiler barf on assigning this to an
"int" variable on ARM with LPAE enabled:
*************
In file included from /src/linux/include/linux/dma-mapping.h:86:0,
                 from /src/linux/arch/arm/mm/dma-mapping.c:21:
/src/linux/arch/arm/mm/dma-mapping.c: In function '__iommu_create_mapping':
/src/linux/arch/arm/include/asm/dma-mapping.h:16:24: warning:
overflow in implicit constant conversion [-Woverflow]
 #define DMA_ERROR_CODE (~(dma_addr_t)0x0)
                        ^
/src/linux/arch/arm/mm/dma-mapping.c:1252:15: note: in expansion of
macro DMA_ERROR_CODE'
  int i, ret = DMA_ERROR_CODE;
               ^
*************

Remove the actually unneeded initialization of "ret" in
__iommu_create_mapping() and move the variable declaration inside the
for-loop to make the scope of this variable more clear.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-09-16 23:58:46 +01:00
Russell King
12fc7306e6 ARM: get rid of needless #if in signal handling code
Remove the #if statement which caused trouble for kernels that support
both ARMv6 and ARMv7.  Older architectures do not implement these bits,
so it should be safe to always clear them.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-09-16 23:58:46 +01:00
Mans Rullgard
9054a31d60 clk: check for invalid parent index of orphans in __clk_init()
If a mux clock is initialised (by hardware or firmware) with an
invalid parent, its ->get_parent() can return an out of range
index.  For example, the generic mux clock attempts to return
-EINVAL, which due to the u8 return type ends up a rather large
number.  Using this index with the parent_names[] array results
in an invalid pointer and (usually) a crash in the following
strcmp().

This patch adds a check for the parent index being in range,
ignoring clocks reporting invalid values.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Tested-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:35:18 -07:00
Stephane Viau
cb2eb7de38 clk: qcom: gdsc: Add GDSCs in apq8084 MMCC
Add the GDSC instances that exist as part of apq8084 MMCC block.

Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:47 -07:00
Rajendra Nayak
639af9490b clk: qcom: gdsc: Add GDSCs in apq8084 GCC
Add the GDSC instances that exist as part of apq8084 GCC block

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:45 -07:00
Stephen Boyd
8108b23ca7 clk: qcom: gdsc: Add GDSCs in msm8974 MMCC
Add the GDSC instances that exist as part of msm8974 MMCC block

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:44 -07:00
Stephen Boyd
340029efdc clk: qcom: gdsc: Add GDSCs in msm8974 GCC
There's just one GDSC as part of the msm8974 GCC block.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:43 -07:00
Rajendra Nayak
073ae2b41c clk: qcom: gdsc: Add GDSCs in msm8916 GCC
Add all data for the GDSCs which are part of msm8916 GCC block.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:41 -07:00
Rajendra Nayak
3c53f5e217 clk: qcom: gdsc: Add support for ON only state
Certain devices can have GDSCs' which support ON as the only state.
They can't be power collapsed to either hit RET or OFF.
The clients drivers for these GDSCs' however would expect the state
of the core to be reset following a GDSC disable and re-enable.
To do this assert/deassert reset lines every time the client
driver would request the GDSC to be powered on/off instead.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:40 -07:00
Rajendra Nayak
014e193ccd clk: qcom: gdsc: Add support for Memory RET/OFF
Along with the GDSC power switch, there is additional control
to either retain all memory (core and peripheral) within a given
powerdomain or to turn them off while the GDSC is powered down.
Add support for these by modelling a RET state where all
memory is retained and an OFF state where all memory gets turned
off.
The controls provided are granular enough to be able to support
various differnt levels of RET states, like a 'shallow RET' with all memory
retained and a 'deep RET' with some memory retained while some others
are lost. The current patch does not support this and considers
just one RET state where all memory is retained. Futher work, if
needed can support multiple different levels of RET state.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:39 -07:00
Rajendra Nayak
5e5cc241e9 clk: qcom: gdsc: Prepare common clk probe to register gdscs
The common clk probe registers a clk provider and a reset controller.
Update it to register a genpd provider using the gdsc data provided
by each platform.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:37 -07:00
Stephen Boyd
45dd0e5531 clk: qcom: Add support for GDSCs
GDSCs (Global Distributed Switch Controllers) are responsible for
safely collapsing and restoring power to peripherals in the SoC.
These are best modelled as power domains using genpd and given
the registers are scattered throughout the clock controller register
space, its best to have the support added through the clock driver.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:35 -07:00
Brian Norris
9556f9dad8 clk: divider: handle integer overflow when dividing large clock rates
On 32-bit architectures, 'unsigned long' (the type used to hold clock
rates, in Hz) is often only 32 bits wide. DIV_ROUND_UP() (as used in,
e.g., commit b11d282dbe "clk: divider: fix rate calculation for
fractional rates") can yield an integer overflow on clock rates that are
not (by themselves) too large to fit in 32 bits, because it performs
addition before the division. See for example:

  DIV_ROUND_UP(3000000000, 1500000000) = (3.0G + 1.5G - 1) / 1.5G
                                       = OVERFLOW / 1.5G

This patch fixes such cases by always promoting the dividend to 64-bits
(unsigned long long) before doing the division. While this patch does
not resolve the issue with large clock rates across the common clock
framework nor address the problems with doing full 64-bit arithmetic on
a 32-bit architecture, it does fix some issues seen when using clock
dividers on a 3GHz reference clock to produce a 1.5GHz CPU clock for an
ARMv7 Brahma B15 SoC.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reference: http://lkml.kernel.org/g/20150413201433.GQ32500@ld-irv-0074
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:33 -07:00
Luis de Bethencourt
051ace1020 clk: sunxi: sun9i-mmc: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:31 -07:00
Luis de Bethencourt
6ed5f8e45d clk: sunxi: sun8i-apb0: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:29 -07:00
Luis de Bethencourt
ad915483e3 clk: sunxi: sun6i-ar100: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:27 -07:00
Luis de Bethencourt
f01745f640 clk: sunxi: sun6i-apb0-gates: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:25 -07:00
Luis de Bethencourt
6853012116 clk: sunxi: sun6i-apb0: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:23 -07:00
Alexandre Belloni
a97cea2a5c clk: at91: system: don't try to free_irq when there is no IRQ
In the error path of at91_clk_register_system(), sys->irq is freed
unconditionally but it may not exist or be request at all.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:22 -07:00
Alexandre Belloni
de661d0022 clk: at91: utmi: use pmc_read when the at91_pmc is available
at91_pmc_read is a workaround to allow external drivers to acces some
registers of the PMC. There is no need for it in clk-utmi.c as we aready
have a pointer to the struct at91_pmc.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:20 -07:00
Stephen Boyd
8ee9c7de01 clk: qcom: Allow clk_set_parent() to work on display clocks
Sometimes the display driver may want to change the parent PLL of
the display clocks (byte and pixel clocks) depending on the
use-case. Currently the parent is fixed by means of having a
frequency table with one entry that chooses a particular parent.
Remove this restriction and use the parent the clock is
configured for in the hardware during clk_set_rate(). This
requires consumers to rely on the default parent or to configure
the parent with clk_set_parent()/assigned-clock-parents on the
clocks before calling clk_set_rate().

Tested-by: Archit Taneja <architt@codeaurora.org>
Cc: Hai Li <hali@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:22:18 -07:00
Stephen Boyd
db544f1b58 Merge branch 'clk-next' into v4.3-rc1 2015-09-16 15:20:03 -07:00
Thierry Reding
e1595d89ae clk: tegra: dfll: Properly protect OPP list
The OPP list needs to be protected against concurrent accesses. Using
simple RCU read locks does the trick and gets rid of the following
lockdep warning:

	===============================
	[ INFO: suspicious RCU usage. ]
	4.2.0-next-20150908 #1 Not tainted
	-------------------------------
	drivers/base/power/opp.c:460 Missing rcu_read_lock() or dev_opp_list_lock protection!

	other info that might help us debug this:

	rcu_scheduler_active = 1, debug_locks = 0
	4 locks held by kworker/u8:0/6:
	 #0:  ("%s""deferwq"){++++.+}, at: [<c0040d8c>] process_one_work+0x118/0x4bc
	 #1:  (deferred_probe_work){+.+.+.}, at: [<c0040d8c>] process_one_work+0x118/0x4bc
	 #2:  (&dev->mutex){......}, at: [<c03b8194>] __device_attach+0x20/0x118
	 #3:  (prepare_lock){+.+...}, at: [<c054bc08>] clk_prepare_lock+0x10/0xf8

	stack backtrace:
	CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 4.2.0-next-20150908 #1
	Hardware name: NVIDIA Tegra SoC (Flattened Device Tree)
	Workqueue: deferwq deferred_probe_work_func
	[<c001802c>] (unwind_backtrace) from [<c00135a4>] (show_stack+0x10/0x14)
	[<c00135a4>] (show_stack) from [<c02a8418>] (dump_stack+0x94/0xd4)
	[<c02a8418>] (dump_stack) from [<c03c6f6c>] (dev_pm_opp_find_freq_ceil+0x108/0x114)
	[<c03c6f6c>] (dev_pm_opp_find_freq_ceil) from [<c0551a3c>] (dfll_calculate_rate_request+0xb8/0x170)
	[<c0551a3c>] (dfll_calculate_rate_request) from [<c0551b10>] (dfll_clk_round_rate+0x1c/0x2c)
	[<c0551b10>] (dfll_clk_round_rate) from [<c054de2c>] (clk_calc_new_rates+0x1b8/0x228)
	[<c054de2c>] (clk_calc_new_rates) from [<c054e44c>] (clk_core_set_rate_nolock+0x44/0xac)
	[<c054e44c>] (clk_core_set_rate_nolock) from [<c054e4d8>] (clk_set_rate+0x24/0x34)
	[<c054e4d8>] (clk_set_rate) from [<c0512460>] (tegra124_cpufreq_probe+0x120/0x230)
	[<c0512460>] (tegra124_cpufreq_probe) from [<c03b9cbc>] (platform_drv_probe+0x44/0xac)
	[<c03b9cbc>] (platform_drv_probe) from [<c03b84c8>] (driver_probe_device+0x218/0x304)
	[<c03b84c8>] (driver_probe_device) from [<c03b69b0>] (bus_for_each_drv+0x60/0x94)
	[<c03b69b0>] (bus_for_each_drv) from [<c03b8228>] (__device_attach+0xb4/0x118)
	ata1: SATA link down (SStatus 0 SControl 300)
	[<c03b8228>] (__device_attach) from [<c03b77c8>] (bus_probe_device+0x88/0x90)
	[<c03b77c8>] (bus_probe_device) from [<c03b7be8>] (deferred_probe_work_func+0x58/0x8c)
	[<c03b7be8>] (deferred_probe_work_func) from [<c0040dfc>] (process_one_work+0x188/0x4bc)
	[<c0040dfc>] (process_one_work) from [<c004117c>] (worker_thread+0x4c/0x4f4)
	[<c004117c>] (worker_thread) from [<c0047230>] (kthread+0xe4/0xf8)
	[<c0047230>] (kthread) from [<c000f7d0>] (ret_from_fork+0x14/0x24)

Signed-off-by: Thierry Reding <treding@nvidia.com>
Fixes: c4fe70ada4 ("clk: tegra: Add closed loop support for the DFLL")
[vince.h@nvidia.com: Unlock rcu on error path]
Signed-off-by: Vince Hsu <vince.h@nvidia.com>
[sboyd@codeaurora.org: Dropped second hunk that nested the rcu
read lock unnecessarily]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16 15:16:03 -07:00
Andrew F. Davis
0f1d08dd6a regulator: tps65218: Fix missing zero typo
Add missing zero to value. This will be needed when range checking
is implemented.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-09-16 20:59:09 +01:00
Robert Jarzmik
3c8f7710c1 ASoC: fix broken pxa SoC support
The previous fix of pxa library support, which was introduced to fix the
library dependency, broke the previous SoC behavior, where a machine
code binding pxa2xx-ac97 with a coded relied on :
 - sound/soc/pxa/pxa2xx-ac97.c
 - sound/soc/codecs/XXX.c

For example, the mioa701_wm9713.c machine code is currently broken. The
"select ARM" statement wrongly selects the soc/arm/pxa2xx-ac97 for
compilation, as per an unfortunate fate SND_PXA2XX_AC97 is both declared
in sound/arm/Kconfig and sound/soc/pxa/Kconfig.

Fix this by ensuring that SND_PXA2XX_SOC correctly triggers the correct
pxa2xx-ac97 compilation.

Fixes: 846172dfe3 ("ASoC: fix SND_PXA2XX_LIB Kconfig warning")
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-09-16 20:58:27 +01:00
Javier Martinez Canillas
e26d15f735 spi: mediatek: fix wrong error return value on probe
Commit adcbcfea15 ("spi: mediatek: fix spi clock usage error")
added a new sel_clk but introduced bugs in the error paths since
the wrong struct clk pointers are passed to PTR_ERR().

Fixes: adcbcfea15 ("spi: mediatek: fix spi clock usage error")
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-09-16 20:45:11 +01:00
Geliang Tang
0243ed44ad spi: fix kernel-doc warnings in spi.h
Fix the following 'make htmldocs' warnings:

  .//include/linux/spi/spi.h:71: warning: No description found for parameter 'lock'
  .//include/linux/spi/spi.h:71: warning: Excess struct/union/enum/typedef member 'clock' description in 'spi_statistics'

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-09-16 20:44:47 +01:00
Mark Brown
92243b6fc8 Linux 4.3-rc1
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJV9LbmAAoJEHm+PkMAQRiGb40IAJWcETZb6hoCUIrGZX+4Znqy
 UXYY9BwybF+3yPsTKWRUWQGifNhUiW7ejNgMO3QYG+E1RgJ6uj8Mym9I11+x3a9D
 beIem8Ftf1Zwt71zg6DpUCNhlRIfa3TTnbQMIYmoIihVwYWVve1/rMPD5kgafF6P
 Xnp7QSUh7uCK/G06sksK9aB2GkRgvoMKfAgTHmj094f24udl87NyUo8O8mP5QWX2
 b0S5ZwlDRL64sio59QyxZK87f0TGnquDBLe6Gcl3wJQx/g3RzRpSxEkumylwx+S4
 u9xeHlorOkg8a+k62TgbC6GP0Y6Ptk+yMF6UFCPsifwQTRvJubrA2ofdfPuggCk=
 =aqcb
 -----END PGP SIGNATURE-----

Merge tag 'v4.3-rc1' into spi-fix-doc

Linux 4.3-rc1
2015-09-16 20:44:25 +01:00
Axel Lin
385877c013 ARM: pxa: balloon3: Fix build error
irq_data_get_chip() function does not exist, call irq_desc_get_chip()
instead.

Fixes: 9ec97561aa ("ARM/pxa: Prepare balloon3_irq_handler for irq argument removal")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2015-09-16 21:24:58 +02:00