Commit Graph

561060 Commits

Author SHA1 Message Date
Tina Ruchandani
dd4c22a61e [media] rc-core: Remove 'struct timeval' usage
streamzap uses 'struct timeval' to store the start time of a signal for
gap tracking. struct timeval uses a 32-bit seconds representation which
will overflow in year 2038 and beyond. Replace struct timeval with ktime_t
which uses a 64-bit seconds representation and is 2038 safe. This patch
uses ktime_get_real() preserving the use of wall-clock time in the
original code.

Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:31:45 -02:00
Alberto Mardegan
8c47311d34 [media] em28xx: add Terratec Cinergy T XS (MT2060)
The Terratec Cinergy T XS is a DVB-T receiver with no analog TV tuner.
This patch adds support for the cards carrying the mt2060 tuner; it's
unclear whether there are cards sold under the same name which use a
different tuner.
As long as there are no reports of such cards, and indeed as long as
there are no working drivers for them, we assume that the USB device
[0ccd:0043] is carrying the mt2060 tuner.

Signed-off-by: Alberto Mardegan <mardy@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:29:16 -02:00
Julia Lawall
cea590d46f [media] v4l: xilinx-vipp: add missing of_node_put
for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
(
   return child;
|
+  of_node_put(child);
?  return ...;
)
   ...
 }
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:27:17 -02:00
Julia Lawall
cc331d37fe [media] v4l: xilinx-tpg: add missing of_node_put
for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
(
   return child;
|
+  of_node_put(child);
?  return ...;
)
   ...
 }
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:26:55 -02:00
Christian Engelmayer
b771852270 [media] as102: fix potential double free in as102_fw_upload()
In case the request to locate the firmware file part 2 fails, the error
path releases the already freed firmware memory location again. Thus
reset the firmware pointer to NULL after releasing firmware file part 1.

Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:16:10 -02:00
Russell King
2ff56fadd9 [media] rc: allow rc modules to be loaded if rc-main is not a module
rc-main mistakenly uses #ifdef MODULE to determine whether it should
load the rc keymap modules.  This symbol is only defined if rc-main
is being built as a module itself, and bears no relation to whether
the rc keymaps are modules.

Fix this to use CONFIG_MODULES instead.

Fixes: 631493ecac ("[media] rc-core: merge rc-map.c into rc-main.c")

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 08:41:06 -02:00
Laura Abbott
d2cc2f0b35 [media] si2157: return -EINVAL if firmware blob is too big
A previous patch added a check if the firmware is too big, but it didn't
set the return error code with the right value.

[mchehab@osg.samsung.com: I ended by applying a v1 of Laura's patch, without
 the proper return code. This patch contains the difference between v2 and v1 of
 the Laura's "si2157: Bounds check firmware" patch]
Cc: stable@kernel.org
Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Reviewed-by: Olli Salonen <olli.salonen@iki.fi>
Tested-by: Olli Salonen <olli.salonen@iki.fi>

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 08:39:52 -02:00
Sakari Ailus
3bbc78aeff [media] staging: omap4iss: Compiling V4L2 framework and I2C as modules is fine
Don't require V4L2 framework and I2C being linked to the kernel directly.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 08:32:34 -02:00
Mikko Rapeli
49dbb4894a [media] include/uapi/linux/dvb/video.h: remove stdint.h include
Kernel headers should use linux/types.h instead.

Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 08:18:38 -02:00
Insu Yun
997f69fb4a [media] mxl111sf: missing return values validation
Return values of mxl111sf_enable_usb_output and mxl1x1sf_top_master_ctrl
are not validated.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 08:15:02 -02:00
Geert Uytterhoeven
22bc862568 [media] rcar_vin: Remove obsolete platform data support
Since commit 3d7608e4c1 ("ARM: shmobile: bockw: remove legacy
board file and config"), Renesas R-Car SoCs are only supported in
generic DT-only ARM multi-platform builds.  The driver doesn't need to
use platform data anymore, hence remove platform data configuration.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 08:11:22 -02:00
Mauro Carvalho Chehab
a71daaa10e [media] move media platform data to linux/platform_data/media
Now that media has its own subdirectory inside platform_data,
let's move the headers that are already there to such subdir.

After moving those files, the references were adjusted using this
script:

    MAIN_DIR="linux/platform_data/"
    PREV_DIR="linux/platform_data/"
    DIRS="media/"

    echo "Checking affected files" >&2
    for i in $DIRS; do
	for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do
		 n=`basename $j`
		git grep -l $n
	done
    done|sort|uniq >files && (
	echo "Handling files..." >&2;
	echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done";
	);
	echo "Handling documentation..." >&2;
	echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "  perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done"
	);
    ) >script && . ./script

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 08:09:38 -02:00
Andrew Cooper
581b7f158f x86/cpu: Fix SMAP check in PVOPS environments
There appears to be no formal statement of what pv_irq_ops.save_fl() is
supposed to return precisely.  Native returns the full flags, while lguest and
Xen only return the Interrupt Flag, and both have comments by the
implementations stating that only the Interrupt Flag is looked at.  This may
have been true when initially implemented, but no longer is.

To make matters worse, the Xen PVOP leaves the upper bits undefined, making
the BUG_ON() undefined behaviour.  Experimentally, this now trips for 32bit PV
guests on Broadwell hardware.  The BUG_ON() is consistent for an individual
build, but not consistent for all builds.  It has also been a sitting timebomb
since SMAP support was introduced.

Use native_save_fl() instead, which will obtain an accurate view of the AC
flag.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Tested-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: <lguest@lists.ozlabs.org>
Cc: Xen-devel <xen-devel@lists.xen.org>
CC: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1433323874-6927-1-git-send-email-andrew.cooper3@citrix.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-11-19 11:07:49 +01:00
Namhyung Kim
112677d683 x86/ftrace: Add comment on static function tracing
There was a confusion between update_ftrace_function() and static
function tracing trampoline regarding 3rd parameter (ftrace_ops).
Add a comment for clarification.

Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1447721004-2551-1-git-send-email-namhyung@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-11-19 11:07:49 +01:00
Mikhail Ulyanov
886aa71bd4 [media] V4L2: platform: rcar_jpu: switch off clock on release later
Give JPU peripheral chance to finish current job.
Don't switch off clock until context release.

Signed-off-by: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 08:04:28 -02:00
Mikhail Ulyanov
69ca0333e2 [media] V4L2: platform: rcar_jpu: remove redundant code
Remove redundant code. Following code line do what we want.

[mchehab@osg.samsung.com: fix conflict with VB2 split patches that renamed some structs]
Signed-off-by: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 08:03:47 -02:00
Mauro Carvalho Chehab
d01b2d53a5 DocBook: only copy stuff to media_api if media xml is generated
It is possible to use:
	make DOCBOOKS=device-drivers.xml htmldocs

To produce just a few docbooks. In such case, the media docs
won't be built, causing the makefile target to return an error.

While this is ok for human eyes, if the above is used on an script,
it would cause troubles.

Fix it by only creating/filling the media_api directory if the
media_api.xml is found at DOCBOOKS.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 07:46:39 -02:00
Eric Nelson
3fb136f339 [media] rc: gpio-ir-recv: add timeout on idle
Many decoders require a trailing space (period without IR illumination)
to be delivered before completing a decode.

Since the gpio-ir-recv driver only delivers events on gpio transitions,
a single IR symbol (caused by a quick touch on an IR remote) will not
be properly decoded without the use of a timer to flush the tail end
state of the IR receiver.

This patch initializes and uses a timer and the timeout field of rcdev
to complete the stream and allow decode.

The timeout can be overridden through the use of the LIRC_SET_REC_TIMEOUT
ioctl.

Signed-off-by: Eric Nelson <eric@nelint.com>
Acked-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 07:46:33 -02:00
Eric Nelson
c8e1bbc52d [media] rc-core: define a default timeout for drivers
A default timeout value of 125 ms should work for all decoders.

Declare a constant to help standardize its' use.

Signed-off-by: Eric Nelson <eric@nelint.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 06:50:59 -02:00
Sudeep Holla
a2d1e1ed18 [media] media: st-rc: remove misuse of IRQF_NO_SUSPEND flag
The device is set as wakeup capable using proper wakeup API but the
driver misuses IRQF_NO_SUSPEND to set the interrupt as wakeup source
which is incorrect.

This patch removes the use of IRQF_NO_SUSPEND flags replacing it with
enable_irq_wake instead.

Cc: Srinivas Kandagatla <srinivas.kandagatla@gmail.com>
Cc: Maxime Coquelin <maxime.coquelin@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kernel@stlinux.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 06:46:05 -02:00
Jani Nikula
7383123647 Revert "drm/i915: skip modeset if compatible for everyone."
This reverts

commit 6764e9f872
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date:   Thu Aug 27 15:44:06 2015 +0200

    drm/i915: skip modeset if compatible for everyone.

Bring back the i915.fastboot module parameter, disabled by default, due
to backlight regression on Chromebook Pixel 2015.

Apparently the firmware of the Chromebook in question enables the panel
but disables backlight to avoid a brief garbage scanout upon loading the
kernel/module. With fastboot, we leave the backlight untouched, in this
case disabled. The user would have to do a modeset (i.e. not just crank
up the brightness) to enable the backlight.

There is no clean fix readily available, so get back to the drawing
board by reverting.

[N.B. The reference below is for when the thread was included on public
lists, and some of the context had already been dropped by then.]

Reported-and-tested-by: Olof Johansson <olof@lixom.net>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
References: http://marc.info/?i=CAKMK7uES7xk05ki92oeX6gmvZWAh9f2vL7yz=6T+fGK9J3X7cQ@mail.gmail.com
Fixes: 6764e9f872 ("drm/i915: skip modeset if compatible for everyone.")
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1447921590-3785-1-git-send-email-jani.nikula@intel.com
2015-11-19 10:38:09 +02:00
Wang, Rui Y
f6619ef750 drm/mgag200: fix kernel hang in cursor code.
The machine hang completely with the following message on the console:

[  487.777538] BUG: unable to handle kernel NULL pointer dereference at 0000000000000060
[  487.777554] IP: [<ffffffff8158aaee>] _raw_spin_lock+0xe/0x30
[  487.777557] PGD 42e9f7067 PUD 42f2fa067 PMD 0
[  487.777560] Oops: 0002 [#1] SMP
...
[  487.777618] CPU: 21 PID: 3190 Comm: Xorg Tainted: G            E   4.4.0-rc1-3-default+ #6
[  487.777620] Hardware name: Intel Corporation BRICKLAND/BRICKLAND, BIOS BRHSXSD1.86B.0059.R00.1501081238 01/08/2015
[  487.777621] task: ffff880853ae4680 ti: ffff8808696d4000 task.ti: ffff8808696d4000
[  487.777625] RIP: 0010:[<ffffffff8158aaee>]  [<ffffffff8158aaee>] _raw_spin_lock+0xe/0x30
[  487.777627] RSP: 0018:ffff8808696d79c0  EFLAGS: 00010246
[  487.777628] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  487.777629] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000060
[  487.777630] RBP: ffff8808696d79e0 R08: 0000000000000000 R09: ffff88086924a780
[  487.777631] R10: 000000000001bb40 R11: 0000000000003246 R12: 0000000000000000
[  487.777632] R13: ffff880463a27360 R14: ffff88046ca50218 R15: 0000000000000080
[  487.777634] FS:  00007f3f81c5a8c0(0000) GS:ffff88086f060000(0000) knlGS:0000000000000000
[  487.777635] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  487.777636] CR2: 0000000000000060 CR3: 000000042e678000 CR4: 00000000001406e0
[  487.777638] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  487.777639] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  487.777639] Stack:
[  487.777642]  ffffffffa00eb5fa ffff8808696d7b60 ffff88086b87d800 0000000000000000
[  487.777644]  ffff8808696d7ac8 ffffffffa01694b6 ffff8808696d7ae8 ffffffff8109c8d5
[  487.777647]  ffff880469158740 ffff880463a27000 ffff88086b87d800 ffff88086b87d800
[  487.777647] Call Trace:
[  487.777674]  [<ffffffffa00eb5fa>] ? drm_gem_object_lookup+0x1a/0xa0 [drm]
[  487.777681]  [<ffffffffa01694b6>] mga_crtc_cursor_set+0xc6/0xb60 [mgag200]
[  487.777691]  [<ffffffff8109c8d5>] ? find_busiest_group+0x35/0x4a0
[  487.777696]  [<ffffffff81086294>] ? __might_sleep+0x44/0x80
[  487.777699]  [<ffffffff815888c2>] ? __ww_mutex_lock+0x22/0x9c
[  487.777722]  [<ffffffffa0104f64>] ? drm_modeset_lock+0x34/0xf0 [drm]
[  487.777733]  [<ffffffffa0148d9e>] restore_fbdev_mode+0xee/0x2a0 [drm_kms_helper]
[  487.777742]  [<ffffffffa014afce>] drm_fb_helper_restore_fbdev_mode_unlocked+0x2e/0x70 [drm_kms_helper]
[  487.777748]  [<ffffffffa014b037>] drm_fb_helper_set_par+0x27/0x50 [drm_kms_helper]
[  487.777752]  [<ffffffff8134560c>] fb_set_var+0x18c/0x3f0
[  487.777777]  [<ffffffffa02a9b0a>] ? __ext4_handle_dirty_metadata+0x8a/0x210 [ext4]
[  487.777783]  [<ffffffff8133cb97>] fbcon_blank+0x1b7/0x2b0
[  487.777790]  [<ffffffff813be2a3>] do_unblank_screen+0xb3/0x1c0
[  487.777795]  [<ffffffff813b5aba>] vt_ioctl+0x118a/0x1210
[  487.777801]  [<ffffffff813a8fe0>] tty_ioctl+0x3f0/0xc90
[  487.777808]  [<ffffffff81172018>] ? kzfree+0x28/0x30
[  487.777813]  [<ffffffff811e053f>] ? mntput+0x1f/0x30
[  487.777817]  [<ffffffff811d3f5d>] do_vfs_ioctl+0x30d/0x570
[  487.777822]  [<ffffffff8107ed3a>] ? task_work_run+0x8a/0xa0
[  487.777825]  [<ffffffff811d4234>] SyS_ioctl+0x74/0x80
[  487.777829]  [<ffffffff8158aeae>] entry_SYSCALL_64_fastpath+0x12/0x71
[  487.777851] Code: 65 ff 0d ce 02 a8 7e 5d c3 ba 01 00 00 00 f0 0f b1 17 85 c0 75 e8 b0 01 5d c3 0f 1f 00 65 ff 05 b1 02 a8 7e 31 c0 ba 01 00 00 00 <f0> 0f b1 17 85 c0 75 01 c3 55 89 c6 48 89 e5 e8 4e f5 b1 ff 5d
[  487.777854] RIP  [<ffffffff8158aaee>] _raw_spin_lock+0xe/0x30
[  487.777855]  RSP <ffff8808696d79c0>
[  487.777856] CR2: 0000000000000060
[  487.777860] ---[ end trace 672a2cd555e0ebd3 ]---

The cursor code may be entered with file_priv == NULL && handle == NULL.
The problem was introduced by:

"bf89209 drm/mga200g: Hold a proper reference for cursor_set"

which calls drm_gem_object_lookup(dev, file_priv...). Previously this wasn't
a problem because we checked the handle. Move the check early in the function
can fix the problem.

Signed-off-by: Rui Wang <rui.y.wang@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-11-19 13:20:01 +10:00
Dave Airlie
e6c84acb3a Merge branch 'drm-vc4-fixes' of git://github.com/anholt/linux into drm-fixes
Here are a few little VC4 fixes for 4.4 that I didn't get in to you
before the -next pull request.  I dropped the feature-ish one I'd
mentioned, and also droppped the one I saw you included in the last
-fixes pull request.

* 'drm-vc4-fixes' of git://github.com/anholt/linux:
  drm/vc4: Make sure that planes aren't scaled.
  drm/vc4: Fix some failure to track __iomem decorations on pointers.
  drm/vc4: checking for NULL instead of IS_ERR
  drm/vc4: fix itnull.cocci warnings
  drm/vc4: fix platform_no_drv_owner.cocci warnings
  drm/vc4: vc4_plane_duplicate_state() can be static
2015-11-19 13:17:08 +10:00
Dave Airlie
8ed59fd6d4 Merge branch 'drm-fixes-4.4' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Radeon and amdgpu fixes for 4.4.  A bit more the usual since I missed
last week.  Misc fixes all over the place.  The big changes are the
tiling configuration fixes for Fiji.

* 'drm-fixes-4.4' of git://people.freedesktop.org/~agd5f/linux: (35 commits)
  drm/amdgpu: reserve/unreserve objects out of map/unmap operations
  drm/amdgpu: move bo_reserve out of amdgpu_vm_clear_bo
  drm/amdgpu: add lock for interval tree in vm
  drm/amdgpu: keep the owner for VMIDs
  drm/amdgpu: move VM manager clean into the VM code again
  drm/amdgpu: cleanup VM coding style
  drm/amdgpu: remove unused VM manager field
  drm/amdgpu: cleanup scheduler command submission
  drm/amdgpu: fix typo in firmware name
  drm/amdgpu: remove the unnecessary parameter adev for amdgpu_sa_bo_new()
  drm/amdgpu: wait interruptible when semaphores are disabled v2
  drm/amdgpu: update pd while updating vm as well
  drm/amdgpu: fix handling order in scheduler CS
  drm/amdgpu: fix incorrect mutex usage v3
  drm/amdgpu: cleanup scheduler fence get/put dance
  drm/amdgpu: add command submission workflow tracepoint
  drm/amdgpu: update Fiji's tiling mode table
  drm/amdgpu: fix bug that can't enter thermal interrupt for bonaire.
  drm/amdgpu: fix seq_printf format string
  drm/radeon: fix quirk for MSI R7 370 Armor 2X
  ...
2015-11-19 13:15:17 +10:00
Yigal Korman
0df9d41ab5 mm, dax: fix DAX deadlocks (COW fault)
DAX handling of COW faults has wrong locking sequence:
	dax_fault does i_mmap_lock_read
	do_cow_fault does i_mmap_unlock_write

Ross's commit[1] missed a fix[2] that Kirill added to Matthew's
commit[3].

Original COW locking logic was introduced by Matthew here[4].

This should be applied to v4.3 as well.

[1] 0f90cc6609 mm, dax: fix DAX deadlocks
[2] 52a2b53ffd mm, dax: use i_mmap_unlock_write() in do_cow_fault()
[3] 843172978b dax: fix race between simultaneous faults
[4] 2e4cdab058 mm: allow page fault handlers to perform the COW

Cc: <stable@vger.kernel.org>
Cc: Boaz Harrosh <boaz@plexistor.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Dave Chinner <dchinner@redhat.com>
Cc: Jan Kara <jack@suse.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Acked-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Yigal Korman <yigal@plexistor.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-11-18 16:54:36 -08:00
Rafael J. Wysocki
3bf7f56e70 Revert "Documentation: kernel_parameters for Intel P state driver"
Revert commit 053f56def5 (Documentation: kernel_parameters for Intel P
state driver) as the code documented by it has been reverted already.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-11-19 00:42:23 +01:00
Arnd Bergmann
2d4ee30367 cpufreq: mediatek: fix build error
The recently added mt8173 cpufreq driver relies on the cpu topology
that is always present on ARM64 but optional on ARM32:

drivers/cpufreq/mt8173-cpufreq.c: In function 'mtk_cpufreq_init':
drivers/cpufreq/mt8173-cpufreq.c:441:30: error: 'cpu_topology' undeclared (first use in this function)
  cpumask_copy(policy->cpus, &cpu_topology[policy->cpu].core_sibling);

This refines the Kconfig dependencies so that we can still build on
ARM32, but only if COMPILE_TEST is selected and the CPU topology
code is present.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-11-19 00:21:47 +01:00
Philippe Longepe
1421df63c3 cpufreq: intel_pstate: Add separate support for Airmont cores
There are two flavors of Atom cores to be supported by intel_pstate,
Silvermont and Airmont, so make the driver distinguish between them by
adding separate frequency tables.

Separate the CPU defaults params for each of them and match the CPU IDs
against them as appropriate.

Signed-off-by: Philippe Longepe <philippe.longepe@linux.intel.com>
Signed-off-by: Stephane Gasparini <stephane.gasparini@linux.intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Subject and changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-11-19 00:21:46 +01:00
Philippe Longepe
938d21a2a6 cpufreq: intel_pstate: Replace BYT with ATOM
Rename symbol and function names starting with "BYT" or "byt" to
start with "ATOM" or "atom", respectively, so as to make it clear
that they may apply to Atom in general and not just to Baytrail
(the goal is to support several Atoms architectures eventually).

This should not lead to any functional changes.

Signed-off-by: Philippe Longepe <philippe.longepe@linux.intel.com>
Signed-off-by: Stephane Gasparini <stephane.gasparini@linux.intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw : Changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-11-19 00:21:46 +01:00
Rafael J. Wysocki
6ee11e413c Revert "cpufreq: intel_pstate: Use ACPI perf configuration"
Revert commit 37afb00032 (cpufreq: intel_pstate: Use ACPI perf
configuration) that is reported to cause a regression to happen
on a system where invalid data are returned by the ACPI _PSS object.

Since that commit makes assumptions regarding the _PSS output
correctness that may turn out to be overly optimistic in general,
there is a concern that it may introduce regression on more
systems, so it's better to revert it now and we'll revisit the
underlying issue in the next cycle with a more robust solution.

Conflicts:
        drivers/cpufreq/intel_pstate.c

Fixes: 37afb00032 (cpufreq: intel_pstate: Use ACPI perf configuration)
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-11-19 00:20:42 +01:00
Rafael J. Wysocki
799281a3c4 Revert "cpufreq: intel_pstate: Avoid calculation for max/min"
Revert commit 4ef4514870 (cpufreq: intel_pstate: Avoid calculation for
max/min) as it depends on commit 37afb00032 (cpufreq: intel_pstate: Use
ACPI perf configuration) that causes problems to happen and needs to be
reverted.

Conflicts:
	drivers/cpufreq/intel_pstate.c

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-11-18 23:29:56 +01:00
Glen Lee
b57f9f34e2 Revert "Staging: wilc1000: coreconfigurator: Drop unneeded wrapper functions"
The source and destination pointers are misplaced.
This will be like,
ether_addr_copy(data, bssid + ADDR2);
-> ether_addr_copy(bssid, data + ADDR2);
and also to use ether_addr_copy, it has to be proved that src/dst address are
properly aligned(2).

I revert this as author agree to drop this patch.

This reverts commit d4622f68db.

Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-18 13:22:44 -08:00
Kamal Dasu
1ddaa021b0 MAINTAINERS: brcmnand: Add co-maintainer for Broadcom SoCs
Adding myself as co-maintainer of nand controller driver
for the Broadcom SoCs.

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-11-18 13:16:58 -08:00
Greg Kroah-Hartman
819db468b2 First set of IIO fixes for the 4.4 cycle.
This set does not include those for issues introduced during the merge
 window.  Fixes of those will follow in a future series.
 
 * ad5064
   - Make sure the local i2c_write returns 0 on success rather than the
     number of bytes transfered.  Otherwise we report an error on all writes.
   - Fix a shift for ad5629 and ad5669 which gives incorrect DAC output on
     these parts.
 * ad7793
   - The product ID on the datasheet is wrong.  Fix it in the driver.
 * IIO_DUMMY_EVGEN
   - select IRQ_WORK as a dependency.
 * lpc32xx
   - make sure clock is prepared before enabling.
 * si7020
   - data byte order was reversed. Fix it.
 * vf610
   - Internal temperature calculation was wrong if a different
     reference voltage was used.  Now use a linear interpolation
     function to make it work over the full range.
   - Fix a division by zero in the case of a device tree property
     not being present (same issue two fixes).
 * xilinx XADC
   - VREFN scale was wrong - fix it.
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Merge tag 'iio-fixes-for-4.4a' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO fixes for the 4.4 cycle.

This set does not include those for issues introduced during the merge
window.  Fixes of those will follow in a future series.

* ad5064
  - Make sure the local i2c_write returns 0 on success rather than the
    number of bytes transfered.  Otherwise we report an error on all writes.
  - Fix a shift for ad5629 and ad5669 which gives incorrect DAC output on
    these parts.
* ad7793
  - The product ID on the datasheet is wrong.  Fix it in the driver.
* IIO_DUMMY_EVGEN
  - select IRQ_WORK as a dependency.
* lpc32xx
  - make sure clock is prepared before enabling.
* si7020
  - data byte order was reversed. Fix it.
* vf610
  - Internal temperature calculation was wrong if a different
    reference voltage was used.  Now use a linear interpolation
    function to make it work over the full range.
  - Fix a division by zero in the case of a device tree property
    not being present (same issue two fixes).
* xilinx XADC
  - VREFN scale was wrong - fix it.
2015-11-18 13:15:50 -08:00
Mauro Carvalho Chehab
203e942d20 [media] s5c73m3-spi: fix compilation breakage when compiled as Module
commit f934a94bb5 ('s5c73m3: Export OF
module alias information') broke compilation when compiled as module:

In file included from drivers/media/i2c/s5c73m3/s5c73m3-spi.c:22:0:
drivers/media/i2c/s5c73m3/s5c73m3-spi.c:40:40: error: expected ')' before ';' token
 MODULE_DEVICE_TABLE(of, s5c73m3_spi_ids;);
                                        ^

Fix it by removing the extra ';'

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-18 16:49:18 -02:00
Will Deacon
c139aa60c1 arm64: barriers: fix smp_load_acquire to work with const arguments
A newly introduced function in include/net/sock.h passes a const
argument to smp_load_acquire:

  static inline int sk_state_load(const struct sock *sk)
  {
	return smp_load_acquire(&sk->sk_state);
  }

This cause an allmodconfig build failure, since our underlying
load-acquire implementation does not handle const types correctly:

  include/net/sock.h: In function 'sk_state_load':
  ./arch/arm64/include/asm/barrier.h:71:3: error: read-only variable '___p1' used as 'asm' output
     asm volatile ("ldarb %w0, %1"    \

This patch fixes the problem by reusing the trick in READ_ONCE that
loads via a non-const member of an anonymous union. This has the
advantage of allowing us to use smp_load_acquire on packed structures
(e.g. arch_spinlock_t) as well as primitive types.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Daney <david.daney@cavium.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: David Daney <david.daney@cavium.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2015-11-18 18:06:43 +00:00
Mathias Nyman
dad67d5f3d xhci: Fix a race in usb2 LPM resume, blocking U3 for usb2 devices
Clear device initiated resume variables once device is fully up and running
in U0 state.

Resume needs to be signaled for 20ms for usb2 devices before they can be
moved to U0 state.

An interrupt is triggered if a device initiates resume. As we handle the
event in interrupt context we can not sleep for 20ms, so we instead set
a resume flag, a timestamp, and start the roothub polling.

The roothub code will later move the port to U0 when it finds a port in
resume state with the resume flag set, and timestamp passed by 20ms.

A host initiated resume is however not done in interrupt context, and
host initiated resume code will directly signal resume, wait 20ms and then
move the port to U0.

These two codepaths can race, if we are in the middle of a host initated
resume, while sleeping for 20ms, we may handle a port event and find the
port in resume state. The port event handling code will assume the resume
was device initiated and set the resume flag and timestamp.

Root hub code will however not catch the port in resume state again as the
host initated resume code has already moved the port to U0.
The resume flag and timestamp will remain set for this port preventing port
from suspending again  (LPM setting port to U3)

Fix this for now by always clearing the device initated resume parameters
once port is in U0

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-18 09:24:41 -08:00
Lu Baolu
42df7215fa usb: xhci: fix checking ep busy for CFC
Function ep_ring_is_processing() checks the dequeue pointer
in endpoint context to know whether an endpoint is busy with
processing TRBs. This is not correct since dequeue pointer
field in an endpoint context is only valid when the endpoint
is in Halted or Stopped states. This buggy code causes audio
noise when playing sound with USB headset connected to host
controllers which support CFC (one of xhci 1.1 features).

This patch should exist in stable kernel since v4.3.

Reported-and-tested-by: YD Tseng <yd_tseng@asmedia.com.tw>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Cc: stable <stable@vger.kernel.org> # v4.3
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-18 09:24:41 -08:00
Rajmohan Mani
a596439619 xhci: Workaround to get Intel xHCI reset working more reliably
Existing Intel xHCI controllers require a delay of 1 mS,
after setting the CMD_RESET bit in command register, before
accessing any HC registers. This allows the HC to complete
the reset operation and be ready for HC register access.
Without this delay, the subsequent HC register access,
may result in a system hang, very rarely.

Verified CherryView / Braswell platforms go through over
5000 warm reboot cycles (which was not possible without
this patch), without any xHCI reset hang.

Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Tested-by: Joe Lawrence <joe.lawrence@stratus.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-18 09:24:41 -08:00
Greg Kroah-Hartman
53de980796 USB Chipidea Fixes for v4.4-rc2
The first four fixes was for v4.3-rc7, but it is too late
 at that time, and other two small fixes are for possible NULL
 pointer issue.
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Merge tag 'usb-ci-v4.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-linus

Peter writes:

USB Chipidea Fixes for v4.4-rc2

The first four fixes was for v4.3-rc7, but it is too late
at that time, and other two small fixes are for possible NULL
pointer issue.
2015-11-18 09:21:17 -08:00
Linus Torvalds
34258a32d9 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
 "Assorted bug fixes, the mlock2 system call gets added, and one
  improvement.  The boot from dasd devices is now possible from a wider
  range of devices"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: remove SALIPL loader
  s390: wire up mlock2 system call
  s390: remove g5 elf platform support
  s390: avoid cache aliasing under z/VM and KVM
  s390/sclp: _sclp_wait_int(): retain full PSW mask
  s390/zcrypt: Fix initialisation when zcrypt is built-in
  s390/zcrypt: Fix kernel crash on systems without AP bus support
  s390: add support for ipl devices in subchannel sets > 0
  s390/ipl: fix out of bounds access in scpdata_write
  s390/pci_dma: improve debugging of errors during dma map
  s390/pci_dma: handle dma table failures
  s390/pci_dma: unify label of invalid translation table entries
  s390/syscalls: remove system call number calculation
  s390/cio: simplify css_generate_pgid
  s390/diag: add a s390 prefix to the diagnose trace point
  s390/head: fix error message on unsupported hardware
2015-11-18 08:59:29 -08:00
Linus Torvalds
0d77a123ff hwmon fixes for v4.4-rc2
Fix build issues in scpi and ina2xx drivers, update scpi driver to
 support recent firmware, and fix an uninitialized variable warning
 in applesmc driver.
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Merge tag 'hwmon-for-linus-v4.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "Fix build issues in scpi and ina2xx drivers, update scpi driver to
  support recent firmware, and fix an uninitialized variable warning in
  applesmc driver"

* tag 'hwmon-for-linus-v4.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (scpi) skip unsupported sensors properly
  hwmon: (scpi) add thermal-of dependency
  hwmon : (applesmc) Fix uninitialized variables warnings
  hwmon: (ina2xx) Fix build issue by selecting REGMAP_I2C
2015-11-18 08:43:29 -08:00
Chunming Zhou
49b02b180a drm/amdgpu: reserve/unreserve objects out of map/unmap operations
Change-Id: Id6514f2fb6e002437fdbe99353d5d35f4ac736c7
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2015-11-18 11:41:20 -05:00
Chunming Zhou
ef9f0a83d6 drm/amdgpu: move bo_reserve out of amdgpu_vm_clear_bo
Change-Id: Ifbb0c06680494bfa04d0be5e5941d31ae2e5ef28
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2015-11-18 11:41:02 -05:00
Chunming Zhou
c25867dfab drm/amdgpu: add lock for interval tree in vm
Change-Id: I62b892a22af37b32e6b4aefca80a25cf45426ed2
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2015-11-18 11:40:55 -05:00
Christian König
1c16c0a7b2 drm/amdgpu: keep the owner for VMIDs
We don't need the last VM use any more, keep the owner directly.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <davdi1.zhou@amd.com>
2015-11-18 11:40:37 -05:00
Christian König
ea89f8c9e8 drm/amdgpu: move VM manager clean into the VM code again
It's not a good idea to duplicate that code.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <davdi1.zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-11-18 11:40:27 -05:00
Christian König
8b4fb00b5d drm/amdgpu: cleanup VM coding style
Fix the indentation and move the VM functions to the structures.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <davdi1.zhou@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-11-18 11:40:00 -05:00
Christian König
eeed25ab83 drm/amdgpu: remove unused VM manager field
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <davdi1.zhou@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
2015-11-18 11:39:34 -05:00
Christian König
984810fc45 drm/amdgpu: cleanup scheduler command submission
Unify the two code path again, cause they do pretty much the same thing.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <davdi1.zhou@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
2015-11-18 11:39:12 -05:00