Moves clock state to struct clk_core, but takes care to change as little API as
possible.

struct clk_hw still has a pointer to a struct clk, which is the
implementation's per-user clk instance, for backwards compatibility.

The struct clk that clk_get_parent() returns isn't owned by the caller, but by
the clock implementation, so the former shouldn't call clk_put() on it.

Because some boards in mach-omap2 still register clocks statically, their clock
registration had to be updated to take into account that the clock information
is stored in struct clk_core now.
Signed-off-by: NTomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Tested-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>
[mturquette@linaro.org: adapted clk_has_parent to struct clk_core
                        applied OMAP3+ DPLL fix from Tero & Tony]

As it has never been used.
Signed-off-by: NTomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

These modules don't need to include clk-private.h. Replace the
include with clk.h because these modules are clock consumers and
also include clk-provider.h in clk/ti.h because struct
clk_hw_omap has a struct clk_hw embedded in it.

Cc: Tero Kristo <t-kristo@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Reviewed-by: NPaul Walmsley <paul@pwsan.com>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

Add an LCC driver for MSM8960/APQ8064 that supports the i2s,
slimbus, and pcm clocks.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Tested-by: NKenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

Add defines to make more human readable numbers for the lpass
clock controller found on IPQ806x SoCs. Also remove the PLL4
define in gcc to avoid #define conflicts because that clock
doesn't exist in gcc, instead it lives in lcc.
Signed-off-by: NRajendra Nayak <rnayak@codeaurora.org>
[sboyd@codeaurora.org: Split off into separate patch]
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Tested-by: NKenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

Some devices don't use mmio to interact with dividers. Split out the
logic from the register read/write parts so that we can reuse the
division logic elsewhere.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Tested-by: NKenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

Some clock drivers want to find the closest rate on the input of
a mux instead of a rate that's less than or equal to the desired
rate. Add a generic mux function to support this.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Tested-by: NKenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

This new function is similar to clk_set_parent(), except that it doesn't
actually change the parent. It merely checks that the given parent clock
can be a parent for the given clock.

A situation where this is useful is to check that a particular setup is
valid before switching to it. One specific use-case for this is atomic
modesetting in the DRM framework where setting a mode is divided into a
check phase where a given configuration is validated before applying
changes to the hardware.

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: NThierry Reding <treding@nvidia.com>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

Adds a new id for the pclk supplying the watchdog on rk3288 socs.
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Reviewed-by: NDoug Anderson <dianders@chromium.org>

Provide CLK support for Alphascale ASM9260 SoC.
Signed-off-by: NOleksij Rempel <linux@rempel-privat.de>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

The common clk_register_{divider,gate,mux} functions allocated memory
for internal data which wasn't freed anywhere. Drivers using these
helpers could only unregister clocks but the memory would still leak.

Add corresponding unregister functions which will release all resources.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

Add required clk support for I2S, PCM and SPDIF.
Signed-off-by: NPadmavathi Venna <padma.v@samsung.com>
Reviewed-by: NVivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

Add clock support for 5 SPI channels.
Signed-off-by: NPadmavathi Venna <padma.v@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

Add support for PDMA0 and PDMA1 gate clks.
Signed-off-by: NPadmavathi Venna <padma.v@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

Now that we don't have any user left for our custom phase function, we can
safely remove this hack from the code.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: NChen-Yu Tsai <wens@csie.org>
Tested-by: NChen-Yu Tsai <wens@csie.org>

Process-Voltage-Temperature Monitor has two clocks, PVTM_CORE and
PVTM_GPU.
Signed-off-by: NHuang Lin <hl@rock-chips.com>
Signed-off-by: NDmitry Torokhov <dtor@chromium.org>
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>

There are 3 different parent clock from different usbphy,
all of them are fixed 480MHz, it is not able to auto select
by clock core to the 2nd and the 3rd parent.
For different use case for different board, we may need to
select different usbphy clock out as parent manually.

Add the clock ID for it so that we can use in dts.
Signed-off-by: NKever Yang <kever.yang@rock-chips.com>
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>

Adding required gate clocks for USB3.0 DRD controller
present on Exynos7.
Signed-off-by: NVivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

Add clock support for the MSCL block for Exynos7.
Signed-off-by: NTony K Nadackal <tony.kn@samsung.com>
Reviewed-by: NPankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

Having switched over all of the users of CONFIG_PM_RUNTIME to use
CONFIG_PM directly, turn the latter into a user-selectable option
and drop the former entirely from the tree.
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NKevin Hilman <khilman@linaro.org>

When the system boots up, in the dmesg logs we can see the memory
statistics along with total reserved as below.  Memory: 458840k/458840k
available, 65448k reserved, 0K highmem

When CMA is enabled, still the total reserved memory remains the same.
However, the CMA memory is not considered as reserved.  But, when we see
/proc/meminfo, the CMA memory is part of free memory.  This creates
confusion.  This patch corrects the problem by properly subtracting the
CMA reserved memory from the total reserved memory in dmesg logs.

Below is the dmesg snapshot from an arm based device with 512MB RAM and
12MB single CMA region.

Before this change:
  Memory: 458840k/458840k available, 65448k reserved, 0K highmem

After this change:
  Memory: 458840k/458840k available, 53160k reserved, 12288k cma-reserved, 0K highmem
Signed-off-by: NPintu Kumar <pintu.k@samsung.com>
Signed-off-by: NVishnu Pratap Singh <vishnu.ps@samsung.com>
Acked-by: NMichal Nazarewicz <mina86@mina86.com>
Cc: Rafael Aquini <aquini@redhat.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

scripts/headers_install.sh will transform __packed to
__attribute__((packed)), so the #ifndef is not necessary.
(and, in fact, it's problematic, because we'll end up with the header
 containing:
#ifndef __attribute__((packed))
#define __attribu...
and so forth.)

Cc: stable@vger.kernel.org # 3.18
Signed-off-by: NKyle McMartin <kyle@redhat.com>
Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>

ACCESS_ONCE does not work reliably on non-scalar types. For
example gcc 4.6 and 4.7 might remove the volatile tag for such
accesses during the SRA (scalar replacement of aggregates) step
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145)

Let's provide READ_ONCE/ASSIGN_ONCE that will do all accesses via
scalar types as suggested by Linus Torvalds. Accesses larger than
the machines word size cannot be guaranteed to be atomic. These
macros will use memcpy and emit a build warning.
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>

They are not used anymore by IA64, move them away.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

pagelist.h needs to include linux/types.h and asm/byteorder.h and not
rely on other headers pulling yet another set of headers.
Signed-off-by: NIlya Dryomov <idryomov@redhat.com>

Add a new parameter 'locked_page' to ceph_do_getattr(). If inline data
in getattr reply will be copied to the page.
Signed-off-by: NYan, Zheng <zyan@redhat.com>

Request reply and cap message can contain inline data. add inline data
to the page cache if there is Fc cap.
Signed-off-by: NYan, Zheng <zyan@redhat.com>

allow specifying position of extent operation in multi-operations
osd request. This is required for cephfs to convert inline data to
normal data (compare xattr, then write object).
Signed-off-by: NYan, Zheng <zyan@redhat.com>
Reviewed-by: NIlya Dryomov <idryomov@redhat.com>

Signed-off-by: NYan, Zheng <zyan@redhat.com>
Reviewed-by: NIlya Dryomov <idryomov@redhat.com>

Signed-off-by: NYan, Zheng <zyan@redhat.com>
Reviewed-by: NIlya Dryomov <idryomov@redhat.com>

2 bytes of what was reserved space is now used by userspace for the
compat_version field.
Signed-off-by: NJohn Spray <john.spray@redhat.com>
Reviewed-by: NSage Weil <sage@redhat.com>

Signed-off-by: NYan, Zheng <zyan@redhat.com>

Use kvfree() from linux/mm.h instead, which is identical.  Also fix the
ceph_buffer comment: we will allocate with kmalloc() up to 32k - the
value of PAGE_ALLOC_COSTLY_ORDER, but that really is just an
implementation detail so don't mention it at all.
Signed-off-by: NIlya Dryomov <idryomov@redhat.com>

When a lock operation is interrupted, current code sends a unlock request to
MDS to undo the lock operation. This method does not work as expected because
the unlock request can drop locks that have already been acquired.

The fix is use the newly introduced CEPH_LOCK_FCNTL_INTR/CEPH_LOCK_FLOCK_INTR
requests to interrupt blocked file lock request. These requests do not drop
locks that have alread been acquired, they only interrupt blocked file lock
request.
Signed-off-by: NYan, Zheng <zyan@redhat.com>

the only instance this method has ever grown was one in kernfs -
one that call ->migrate() of another vm_ops if it exists.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

The ycbcr_enc and quantization fields do not need a __u32. Switch to
two __u16 types, thus preserving alignment and avoiding holes in the
struct. This makes one more __u32 available for future expansion.

Suggested by Sakari Ailus.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>

Otherwise we get things like:

warning: (NET_DSA_BCM_SF2 && BCMGENET && SYSTEMPORT) selects FIXED_PHY which has unmet direct dependencies (NETDEVICES && PHYLIB=y)

In order to make this work we have to rename fixed.c to fixed_phy.c
because the regulator drivers already have a module named "fixed.o".
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Everyone should use TUNSETVNETLE/TUNGETVNETLE instead.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

ifreq flags field is only 16 bit wide, so setting IFF_VNET_LE there has
no effect:
doesn't fit in two bytes.

The tests passed apparently because they have an even number of bugs,
all cancelling out.

Luckily we didn't release a kernel with this flag, so it's
not too late to fix this.

Add TUNSETVNETLE/TUNGETVNETLE to really achieve the purpose
of IFF_VNET_LE.

This has an added benefit that if we ever want a BE flag,
we won't have to deal with weird configurations like
setting both LE and BE at the same time.

IFF_VNET_LE will be dropped in a follow-up patch.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>