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603343 commits

Author SHA1 Message Date
Linus Torvalds
144b5ae3e3 GPIO fixes for the v4.7 cycle:
- It was discovered that too many parts of the kernel does not
   respect gpiod_to_irq() returning zero for an invalid IRQ.
   While this gets fixed, we need to make it return negative
   errorcodes again.
 
 - Harden the library a bit when passed error pointers. It is
   a bug to use these, but let's be helpful and warn the users.
 
 - Fix an uninitialized spinlock in the 104-idi-48 driver.
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Merge tag 'gpio-v4.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "More GPIO fixes.  Most prominent the gpiod_to_irq() fix brought to my
  attention by Hans de Goede.  The hardening patch is a consequence of
  the reasoning around that bug.

   - It was discovered that too many parts of the kernel does not
     respect gpiod_to_irq() returning zero for an invalid IRQ.  While
     this gets fixed, we need to make it return negative errorcodes
     again.

   - Harden the library a bit when passed error pointers.  It is a bug
     to use these, but let's be helpful and warn the users.

   - Fix an uninitialized spinlock in the 104-idi-48 driver"

* tag 'gpio-v4.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: make library immune to error pointers
  gpio: make sure gpiod_to_irq() returns negative on NULL desc
  gpio: 104-idi-48: Fix missing spin_lock_init for ack_lock
2016-06-22 10:13:25 -07:00
Greg Kroah-Hartman
df013212a1 Second set of IIO fixes for the 4.7 cycle.
This includes one tracked regression (Arnd's patch for the ad7606).
 The other two have I think always been broken.
 
 * inv_mpu6050
   - Fix a use after free in the ACPI code.
 * ad5933
   - The code for setting the cycles had a bug that meant it was simply wrong.
 * ad7606_spi
   - Fix a regression that got introduced in a buggy cleanup of a sparse
     warning.
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Merge tag 'iio-fixes-for-4.7b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

Second set of IIO fixes for the 4.7 cycle.

This includes one tracked regression (Arnd's patch for the ad7606).
The other two have I think always been broken.

* inv_mpu6050
  - Fix a use after free in the ACPI code.
* ad5933
  - The code for setting the cycles had a bug that meant it was simply wrong.
* ad7606_spi
  - Fix a regression that got introduced in a buggy cleanup of a sparse
    warning.
2016-06-22 09:57:28 -07:00
Axel Lin
19b5a91764 pinctrl: tegra: Fix build dependency
I got below build error:
ERROR: "tegra_xusb_padctl_legacy_probe"
 [drivers/phy/tegra/phy-tegra-xusb.ko] undefined!
with below build configuration:
CONFIG_ARCH_TEGRA=y
CONFIG_PINCTRL_TEGRA_XUSB=y
CONFIG_PHY_TEGRA_XUSB=y

The problem is below line in drivers/pinctrl/Makefile
obj-$(CONFIG_PINCTRL_TEGRA)     += tegra/

So even CONFIG_PINCTRL_TEGRA_XUSB=y is set, kbuild still does not compile
the code in drivers/pinctrl/tegra folder if !CONFIG_PINCTRL_TEGRA.

phy-tegra-xusb.c does not use any symbol from pinctrl-tegra.c,
so build pinctrl-tegra.c only when CONFIG_PINCTRL_TEGRA is set.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-22 17:58:07 +02:00
Thierry Reding
9ee8ff4867 gpio: tegra: Make lockdep class file-scoped
Commit b546be0db9 ("gpio: tegra: Get rid of all file scoped global
variables") moved all file scoped variables into the driver-private
structure to allow potentially multiple instances of the driver. The
change also included turning the lockdep class into a driver-private
field, which doesn't work and produces error messages such as this:

	[    0.142310] BUG: key ffff8000fb3f7ab0 not in .data!

Make the lockdep class file-scoped again to fix this issue.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-22 17:58:07 +02:00
Tony Lindgren
0ac3c0a402 pinctrl: single: Fix missing flush of posted write for a wakeirq
With many repeated suspend resume cycles, the pin specific wakeirq
may not always work on omaps. This is because the write to enable the
pin interrupt may not have reached the device over the interconnect
before suspend happens.

Let's fix the issue with a flush of posted write with a readback.

Cc: stable@vger.kernel.org
Reported-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-22 17:58:07 +02:00
Alexander Shiyan
ba562d5e54 pinctrl: imx: Do not treat a PIN without MUX register as an error
Some PINs do not have a MUX register, it is not an error.
It is necessary to allow the continuation of the PINs configuration,
otherwise the whole PIN-group will be configured incorrectly.

Cc: stable@vger.kernel.org
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-22 17:58:06 +02:00
James Morse
d74b4e4f1a arm64: hibernate: Don't hibernate on systems with stuck CPUs
Hibernate relies on cpu hotplug to prevent secondary cores executing
the kernel text while it is being restored.

Add a call to cpus_are_stuck_in_kernel() to determine if there are
CPUs not counted by 'num_online_cpus()', and prevent hibernate in this
case.

Fixes: 82869ac57b ("arm64: kernel: Add support for hibernate/suspend-to-disk")
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-06-22 15:48:10 +01:00
James Morse
5c492c3f52 arm64: smp: Add function to determine if cpus are stuck in the kernel
kernel/smp.c has a fancy counter that keeps track of the number of CPUs
it marked as not-present and left in cpu_park_loop(). If there are any
CPUs spinning in here, features like kexec or hibernate may release them
by overwriting this memory.

This problem also occurs on machines using spin-tables to release
secondary cores.
After commit 44dbcc93ab ("arm64: Fix behavior of maxcpus=N")
we bring all known cpus into the secondary holding pen, meaning this
memory can't be re-used by kexec or hibernate.

Add a function cpus_are_stuck_in_kernel() to determine if either of these
cases have occurred.

Signed-off-by: James Morse <james.morse@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-06-22 15:48:09 +01:00
Ben Dooks
c9058d43d9 ALSA: hda/tegra: iomem fixups for sparse warnings
The readl/writel are not being passed __iomem annotated
variables, so fix the following sparse warnings by adding
__iomem in:

sound/pci/hda/hda_tegra.c:120:9: warning: incorrect type in argument 2 (different address spaces)
sound/pci/hda/hda_tegra.c:120:9:    expected void volatile [noderef] <asn:2>*addr
sound/pci/hda/hda_tegra.c:120:9:    got unsigned int [usertype] *addr
sound/pci/hda/hda_tegra.c:125:16: warning: incorrect type in argument 1 (different address spaces)
sound/pci/hda/hda_tegra.c:125:16:    expected void const volatile [noderef] <asn:2>*addr
sound/pci/hda/hda_tegra.c:125:16:    got unsigned int [usertype] *addr
sound/pci/hda/hda_tegra.c:134:13: warning: incorrect type in argument 1 (different address spaces)
sound/pci/hda/hda_tegra.c:134:13:    expected void const volatile [noderef] <asn:2>*addr
sound/pci/hda/hda_tegra.c:134:13:    got void *dword_addr
sound/pci/hda/hda_tegra.c:137:9: warning: incorrect type in argument 2 (different address spaces)
sound/pci/hda/hda_tegra.c:137:9:    expected void volatile [noderef] <asn:2>*addr
sound/pci/hda/hda_tegra.c:137:9:    got void *dword_addr
sound/pci/hda/hda_tegra.c:146:13: warning: incorrect type in argument 1 (different address spaces)
sound/pci/hda/hda_tegra.c:146:13:    expected void const volatile [noderef] <asn:2>*addr
sound/pci/hda/hda_tegra.c:146:13:    got void *dword_addr
sound/pci/hda/hda_tegra.c:156:13: warning: incorrect type in argument 1 (different address spaces)
sound/pci/hda/hda_tegra.c:156:13:    expected void const volatile [noderef] <asn:2>*addr
sound/pci/hda/hda_tegra.c:156:13:    got void *dword_addr
sound/pci/hda/hda_tegra.c:159:9: warning: incorrect type in argument 2 (different address spaces)
sound/pci/hda/hda_tegra.c:159:9:    expected void volatile [noderef] <asn:2>*addr
sound/pci/hda/hda_tegra.c:159:9:    got void *dword_addr
sound/pci/hda/hda_tegra.c:168:13: warning: incorrect type in argument 1 (different address spaces)
sound/pci/hda/hda_tegra.c:168:13:    expected void const volatile [noderef] <asn:2>*addr
sound/pci/hda/hda_tegra.c:168:13:    got void *dword_addr
sound/pci/hda/hda_tegra.c:173:23: warning: incorrect type in initializer (incompatible argument 2 (different address spaces))
sound/pci/hda/hda_tegra.c:173:23:    expected void ( *reg_writel )( ... )
sound/pci/hda/hda_tegra.c:173:23:    got void ( static [toplevel] *<noident> )( ... )
sound/pci/hda/hda_tegra.c:174:22: warning: incorrect type in initializer (incompatible argument 1 (different address spaces))
sound/pci/hda/hda_tegra.c:174:22:    expected unsigned int ( *reg_readl )( ... )
sound/pci/hda/hda_tegra.c:174:22:    got unsigned int ( static [toplevel] *<noident> )( ... )
sound/pci/hda/hda_tegra.c:175:23: warning: incorrect type in initializer (incompatible argument 2 (different address spaces))
sound/pci/hda/hda_tegra.c:175:23:    expected void ( *reg_writew )( ... )
sound/pci/hda/hda_tegra.c:175:23:    got void ( static [toplevel] *<noident> )( ... )
sound/pci/hda/hda_tegra.c:176:22: warning: incorrect type in initializer (incompatible argument 1 (different address spaces))
sound/pci/hda/hda_tegra.c:176:22:    expected unsigned short ( *reg_readw )( ... )
sound/pci/hda/hda_tegra.c:176:22:    got unsigned short ( static [toplevel] *<noident> )( ... )
sound/pci/hda/hda_tegra.c:177:23: warning: incorrect type in initializer (incompatible argument 2 (different address spaces))
sound/pci/hda/hda_tegra.c:177:23:    expected void ( *reg_writeb )( ... )
sound/pci/hda/hda_tegra.c:177:23:    got void ( static [toplevel] *<noident> )( ... )
sound/pci/hda/hda_tegra.c:178:22: warning: incorrect type in initializer (incompatible argument 1 (different address spaces))
sound/pci/hda/hda_tegra.c:178:22:    expected unsigned char ( *reg_readb )( ... )
sound/pci/hda/hda_tegra.c:178:22:    got unsigned char ( static [toplevel] *<noident> )( ... )

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-06-22 15:19:10 +02:00
Ben Dooks
7099258819 usb: renesas_usbhs: make usbhs_write32() static
The usbhs_write32 function is not used outside of the rcar3.c
file, so fix the following sparse warning by making it static:

drivers/usb/renesas_usbhs/rcar3.c:26:6: warning: symbol 'usbhs_write32' was not declared. Should it be static?

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-22 11:16:07 +03:00
Hans de Goede
04e59a0211 phy-sun4i-usb: Fix irq free conditions to match request conditions
commit 5cf700ac9d ("phy: phy-sun4i-usb: Fix optional gpios failing
probe")
changed the condition under which irqs are requested, but omitted matching
changes to sun4i_usb_phy_remove(). This commit fixes this.

Fixes: 5cf700ac9d ("phy: phy-sun4i-usb: Fix optional gpios failing probe")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-06-22 11:33:46 +05:30
Lukasz Luba
8d39fc085d PM / devfreq: fix initialization of current frequency in last status
Some systems need current frequency from last_status for calculation
but it is zeroed during initialization. When the device starts there is
no history, but we can assume that the last frequency was the
same as the initial frequency (which is also used in 'previous_freq').
The log shows the result of this misinterpreted value.
[    2.042847] ... Failed to get voltage for frequency 0: -34

Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2016-06-22 13:53:00 +09:00
Dan Carpenter
674789dd2c PM / devfreq: exynos-nocp: Remove incorrect IS_ERR() check
Smatch complains because platform_get_resource() returns NULL on error
and not an error pointer so the check is wrong.  Julia Lawall pointed
out that normally we don't check these, because devm_ioremap_resource()
has a check for NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2016-06-22 13:52:55 +09:00
MyungJoo Ham
67ffdb529b PM / devfreq: remove double put_device
When device_register() returns with error, it has already
done put_device() on the input device pointer.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2016-06-22 13:52:52 +09:00
Cai Zhiyong
a5e9b937fa PM / devfreq: fix double call put_device
1295  */
1296 void device_unregister(struct device *dev)
1297 {
1298         pr_debug("device: '%s': %s\n", dev_name(dev), __func__);
1299         device_del(dev);
1300         put_device(dev);
1301 }
1302 EXPORT_SYMBOL_GPL(device_unregister);
1303

device_unregister is called put_device, there is no need to call
put_device(&devfreq->dev) again.

Signed-off-by: Cai Zhiyong <caizhiyong@huawei.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2016-06-22 13:52:43 +09:00
MyungJoo Ham
ac4b281176 PM / devfreq: fix duplicated kfree on devfreq pointer
device_unregister() calls kfree already.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2016-06-22 13:52:40 +09:00
MyungJoo Ham
3e1d7fb0d2 PM / devfreq: devm_kzalloc to have dev pointer more precisely
devm_kzalloc of devfreq's statistics data structure has been
using its parent device as the dev allocated for.
If a device's devfreq is disabled in run-time,
such allocated memory won't be freed.

Desginating more precisely with the devfreq device
pointer fixes the issue.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2016-06-22 13:51:08 +09:00
Lv Zheng
2f38b1b16d ACPICA: Namespace: Fix deadlock triggered by MLC support in dynamic table loading
The new module-level code (MLC) approach invokes MLC on the per-table
basis, but the dynamic loading support of this is incorrect because
of the lock order:

 acpi_ns_evaluate
   acpi_ex_enter_intperter
     acpi_ns_load_table (triggered by Load opcode)
       acpi_ns_exec_module_code_list
         acpi_ex_enter_intperter

The regression is introduced by the following commit:

  Commit: 2785ce8d0d
  ACPICA Commit: 071eff738c59eda1792ac24b3b688b61691d7e7c
  Subject: ACPICA: Add per-table execution of module-level code

This patch fixes this regression by unlocking the interpreter lock
before invoking MLC.  However, the unlocking is done to the
acpi_ns_load_table(), in which the interpreter lock should be locked
by acpi_ns_parse_table() but it wasn't.

Fixes: 2785ce8d0d (ACPICA: Add per-table execution of module-level code)
Reported-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Cc: 4.5+ <stable@vger.kernel.org> # 4.5+
[ rjw : Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-06-22 01:07:35 +02:00
Shaokun Zhang
20c27a4270 arm64: mm: remove page_mapping check in __sync_icache_dcache
__sync_icache_dcache unconditionally skips the cache maintenance for
anonymous pages, under the assumption that flushing is only required in
the presence of D-side aliases [see 7249b79f6b ("arm64: Do not flush
the D-cache for anonymous pages")].

Unfortunately, this breaks migration of anonymous pages holding
self-modifying code, where userspace cannot be reasonably expected to
reissue maintenance instructions in response to a migration.

This patch fixes the problem by removing the broken page_mapping(page)
check from the cache syncing code, otherwise we may end up fetching and
executing stale instructions from the PoU.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-06-21 20:10:18 +01:00
Masahiro Yamada
9ca4e58c20 arm64: fix boot image dependencies to not generate invalid images
I fixed boot image dependencies for arch/arm in commit 3939f33450
("ARM: 8418/1: add boot image dependencies to not generate invalid
images").

I see a similar problem for arch/arm64; "make -jN Image Image.gz"
would sometimes end up generating bad images where N > 1.

Fix the dependency in arch/arm64/Makefile to avoid the race
between "make Image" and "make Image.*".

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-06-21 20:10:18 +01:00
Jean-Philippe Brucker
f7e0efc9b5 arm64: update ASID limit
During a rollover, we mark the active ASID on each CPU as reserved, before
allocating a new ID for the task that caused the rollover. This means that
with N CPUs, we can only guarantee the new task to obtain a valid ASID if
we have at least N+1 ASIDs. Update this limit in the initcall check.

Note that this restriction was introduced by commit 8e648066 on the
arch/arm side, which disallow re-using the previously active ASID on the
local CPU, as it would introduce a TLB race.

In addition, we only dispose of NUM_USER_ASIDS-1, since ASID 0 is
reserved. Add this restriction as well.

Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-06-21 20:10:18 +01:00
Lyude
1e3fa0acfe drm/i915/fbc: Disable on HSW by default for now
>From https://bugs.freedesktop.org/show_bug.cgi?id=96461 :

This was kind of a difficult bug to track down. If you're using a
Haswell system running GNOME and you have fbc completely enabled and
working, playing videos can result in video artifacts. Steps to
reproduce:

- Run GNOME
- Ensure FBC is enabled and active
- Download a movie, I used the ogg version of Big Buck Bunny for this
- Run `gst-launch-1.0 filesrc location='some_movie.ogg' ! decodebin !
  glimagesink` in a terminal
- Watch for about over a minute, you'll see small horizontal lines go
  down the screen.

For the time being, disable FBC for Haswell by default.

Stefan Richter reported kernel freezes (no video artifacts) when fbc
is on.  (E3-1245 v3 with HD P4600; openbox and some KDE and LXDE
applications, thread begins at https://lkml.org/lkml/2016/4/26/813).
We also got reports from Steven Honeyman on openbox+roxterm.

v2 (From Paulo):
  - Add extra information to the commit message
  - Add Fixes tag
  - Rebase

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96461
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96464
Fixes: a98ee79317 ("drm/i915/fbc: enable FBC by default on HSW and BDW")
Cc: stable@vger.kernel.org
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Lyude <cpaul@redhat.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465487895-7401-1-git-send-email-cpaul@redhat.com
(cherry picked from commit c7f7e2feff)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-21 19:45:21 +03:00
Mika Kahola
34511dce4b drm/i915: Revert DisplayPort fast link training feature
It has been found out that in some HW combination the DisplayPort
fast link training feature caused screen flickering. Let's revert
this feature for now until we can ensure that the feature works for
all platforms.

This is a manual revert of commits 5fa836a9d8 ("drm/i915: DP link
training optimization") and 4e96c97742 ("drm/i915: eDP link training
optimization").

Fixes: 5fa836a9d8 ("drm/i915: DP link training optimization")
Fixes: 4e96c97742 ("drm/i915: eDP link training optimization")
Cc: <stable@vger.kernel.org> # v4.2+

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91393
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466410226-19543-1-git-send-email-mika.kahola@intel.com
(cherry picked from commit 91df09d92a)
2016-06-21 19:45:03 +03:00
Rex Zhu
270d013659 drm/amd/powerplay: enable clock stretch feature for polaris
Power saving feature which reduces the amount of
voltage needed for specific engine clocks.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21 10:22:42 -04:00
Rex Zhu
92d1576859 drm/amdgpu/gfx8: update golden setting for polaris10
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21 10:22:42 -04:00
Rex Zhu
432c3a3ca7 drm/amd/powerplay: enable avfs feature for polaris
avfs feature is for voltage control based on
gpu system clock on polaris10

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21 10:22:41 -04:00
Rex Zhu
c11cb70483 drm/amdgpu/atombios: add avfs struct for Polaris10/11
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21 10:22:41 -04:00
Rex Zhu
31b2124377 drm/amd/powerplay: add avfs related define for polaris
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21 10:22:40 -04:00
Rex Zhu
9a3c1b342b drm/amd/powrplay: enable stutter_mode for polaris.
To minimize the dram power expenditure during static -screen

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21 10:22:40 -04:00
Rex Zhu
40787ef21c drm/amd/powerplay: disable UVD SMU handshake for MCLK.
sync up with internal programming recommendations.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21 10:22:39 -04:00
Rex Zhu
a2fb4934e9 drm/amd/powerplay: initialize variables which were missed.
Missing pcie dpm settings.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21 10:22:38 -04:00
Rex Zhu
919e334dec drm/amd/powerplay: enable PowerContainment feature for polaris10/11.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21 10:22:38 -04:00
Rex Zhu
0a4fef559b drm/amd/powerplay: need to notify system bios pcie device ready
before request performance state.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2016-06-21 10:22:37 -04:00
Rex Zhu
576b4401b1 drm/amd/powerplay: fix bug that function parameter was incorect.
Wrong value passed to acpi_pcie_perf_request.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2016-06-21 10:22:37 -04:00
Rex Zhu
1d7b84d12a drm/amd/powerplay: fix logic error.
the error lead powerplay can't get display info in DGPU case.
store_cc6_data just implement in APU.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2016-06-21 10:22:29 -04:00
Boris Brezillon
0b1e1eb762 drm: atmel-hlcdc: Fix OF graph parsing
atmel_hlcdc_create_outputs() iterates over OF graph nodes and releases
the node (using of_node_put()) after each iteration, which is wrong
since for_each_endpoint_of_node() is already taking care of that.

Move the of_node_put() call in the error path.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Fixes: 17a8e03e7e ("drm: atmel-hlcdc: rework the output code to support drm bridges")
2016-06-21 14:15:45 +02:00
Boris Brezillon
1b7e38b92b drm: atmel-hlcdc: actually disable scaling when no scaling is required
The driver is only enabling scaling, but never disabling it, thus, if you
enable the scaling feature once it stays enabled forever.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Alex Vazquez <avazquez.dev@gmail.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Fixes: 1a396789f6 ("drm: add Atmel HLCDC Display Controller support")
Cc: <stable@vger.kernel.org>
2016-06-21 14:15:11 +02:00
Iago Abal
1d23d16a88 usb: gadget: pch_udc: reorder spin_[un]lock to avoid deadlock
The above commit reordered spin_lock/unlock and now `&dev->lock' is acquired
(rather than released) before calling `dev->driver->disconnect',
`dev->driver->setup', `dev->driver->suspend', `usb_gadget_giveback_request', and
`usb_gadget_udc_reset'.

But this *may* not be the right way to fix the problem pointed by d3cb25a121.

Note that the other usb/gadget/udc drivers do release the lock before calling
these functions. There are also inconsistencies within pch_udc.c, where
`dev->driver->disconnect' is called while holding `&dev->lock' in lines 613 and
1184, but not in line 2739.

Finally, commit d3cb25a121 may have introduced several potential deadlocks.

For instance, EBA (https://github.com/models-team/eba) reports:

    Double lock in drivers/usb/gadget/udc/pch_udc.c
    first at 2791: spin_lock(& dev->lock); [pch_udc_isr]
    second at 2694: spin_lock(& dev->lock); [pch_udc_svc_cfg_interrupt]
        after calling from 2793: pch_udc_dev_isr(dev, dev_intr);
        after calling from 2724: pch_udc_svc_cfg_interrupt(dev);

Similarly, other potential deadlocks are 2791 -> 2793 -> 2721 -> 2657; and
2791 -> 2793 -> 2711 -> 2573 -> 1499 -> 1480.

Fixes: d3cb25a121 ("usb: gadget: udc: fix spin_lock in pch_udc")
Signed-off-by: Iago Abal <mail@iagoabal.eu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 13:18:23 +03:00
Sandhya Bankar
4320280001 usb: Use (foo *) instead of (foo*).
Use (foo *) instead of (foo*).

Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:16:15 +03:00
Baolin Wang
72704f876f dwc3: gadget: Implement the suspend entry event handler
It had changed to be suspend event for BIT6 in DEVT register from
version 2.30a and above. Thus this patch introduces one suspend
event handler to handle the suspend event.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:16:01 +03:00
Arnd Bergmann
b9b092319b usb: phy: move msm_hsusb.h into driver
As a preparation for another cleanup, this moves the header file
for the phy-msm-usb driver into the driver itself. No other file
includes it any more, and we don't really want it in the global
namespace anyway.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:12:10 +03:00
Michal Nazarewicz
9353afbbfa usb: gadget: f_fs: buffer data from ‘oversized’ OUT requests
f_fs rounds up read(2) requests to a multiple of a max packet size
which means that host may provide more data than user has space for.
So far, the excess data has been silently ignored.

This introduces a buffer for a tail of such requests so that they are
returned on next read instead of being ignored.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:11:31 +03:00
Michal Nazarewicz
c662a31be7 usb: gadget: f_fs: printk error when excess data is dropped on read
Add a pr_err when host sent more data then the size of the buffer user
space gave us.  This may happen on UDCs which require OUT requests to
be aligned to max packet size.  The patch includes a description of the
situation.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:11:23 +03:00
Sandhya Bankar
7c8b9c3184 usb: phy: omap-otg: Space required after that ','.
Space required after that ','.

Reviewed-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:10:53 +03:00
Colin Ian King
f7d74de355 usb: gadget: bdc: fix spelling mistake: "allocted" -> "allocated"
trivial fix to spelling mistake

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:05:00 +03:00
Michal Nazarewicz
bd8dc7375b usb: gadget: mv_u3d: fix unused-but-set-variable warnings
This patch fixes the following (W=1) warnings:

drivers/usb/gadget/udc/mv_u3d_core.c: In function ‘mv_u3d_process_ep_req’:
drivers/usb/gadget/udc/mv_u3d_core.c:124:6: warning: variable ‘trb_complete’ set but not used [-Wunused-but-set-variable]
  int trb_complete, actual, remaining_length = 0;
      ^
drivers/usb/gadget/udc/mv_u3d_core.c:123:28: warning: variable ‘curr_ep_context’ set but not used [-Wunused-but-set-variable]
  struct mv_u3d_ep_context *curr_ep_context;
                            ^
drivers/usb/gadget/udc/mv_u3d_core.c:122:13: warning: variable ‘cur_deq_lo’ set but not used [-Wunused-but-set-variable]
  dma_addr_t cur_deq_lo;
             ^
drivers/usb/gadget/udc/mv_u3d_core.c: In function ‘mv_u3d_ep_enable’:
drivers/usb/gadget/udc/mv_u3d_core.c:530:28: warning: variable ‘ep_context’ set but not used [-Wunused-but-set-variable]
  struct mv_u3d_ep_context *ep_context;
                            ^
drivers/usb/gadget/udc/mv_u3d_core.c: In function ‘mv_u3d_ep_disable’:
drivers/usb/gadget/udc/mv_u3d_core.c:636:28: warning: variable ‘ep_context’ set but not used [-Wunused-but-set-variable]
  struct mv_u3d_ep_context *ep_context;
                            ^
In doing so, it removes calls to ioread32 function which does I/O with
the device, but I hope the reads don’t have any side effects that are
needed.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:04:38 +03:00
Michal Nazarewicz
906ae52db2 usb: gadget: r8a66597: fix unused-but-set-variable warnings
This patch fixes the following (W=1) warnings:

drivers/usb/gadget/udc/r8a66597-udc.c: In function ‘r8a66597_irq’:
drivers/usb/gadget/udc/r8a66597-udc.c:1468:15: warning: variable ‘nrdyenb’ set but not used [-Wunused-but-set-variable]
  u16 brdyenb, nrdyenb, bempenb;
               ^
drivers/usb/gadget/udc/r8a66597-udc.c:1467:15: warning: variable ‘nrdysts’ set but not used [-Wunused-but-set-variable]
  u16 brdysts, nrdysts, bempsts;
               ^

In doing so, it removes calls to r8a66597_read function which does I/O
with the device, but I hope the reads don’t have any side effects that
are needed.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:04:32 +03:00
Michal Nazarewicz
d58fcf81bb usb: gadget: m66592: fix unused-but-set-variable warnings
This patch fixes the following (W=1) warnings:

drivers/usb/gadget/udc/m66592-udc.c: In function ‘m66592_irq’:
drivers/usb/gadget/udc/m66592-udc.c:1203:15: warning: variable ‘nrdyenb’ set but not used [-Wunused-but-set-variable]
  u16 brdyenb, nrdyenb, bempenb;
               ^
drivers/usb/gadget/udc/m66592-udc.c:1202:15: warning: variable ‘nrdysts’ set but not used [-Wunused-but-set-variable]
  u16 brdysts, nrdysts, bempsts;
               ^

In doing so, it removes calls to m66592_read function which does I/O
with the device, but I hope the reads don’t have any side effects that
are needed.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:04:25 +03:00
Michal Nazarewicz
872ce51195 usb: gadget: fix unused-but-set-variale warnings
Those are enabled with W=1 make option.

The patch leaves of some type-limits warnings which are caused by
generic macros used in a way where they produce always-false
conditions.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 11:04:09 +03:00
Roger Quadros
9522def400 usb: dwc3: core: cleanup IRQ resources
Implementations might use different IRQs for
host, gadget so use named interrupt resources
to allow device tree to specify the interrupts.

Following are the interrupt names

Peripheral Interrupt - peripheral
HOST Interrupt - host

Maintain backward compatibility for a single named
interrupt ("dwc3_usb3") for all interrupts as well as
unnamed interrupt at index 0 for all interrupts.

As platform_get_irq() variants are used, tackle
the -EPROBE_DEFER case as well.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-06-21 10:53:22 +03:00