sitara-epos/sitara-epos-kernel.git
10 years agovideo: da8xx-fb: Increased resolution configuration of revised LCDC IP
Manjunathappa, Prakash [Mon, 18 Jul 2011 04:28:53 +0000 (09:58 +0530)]
video: da8xx-fb: Increased resolution configuration of revised LCDC IP

Revised LCD controller in upcoming TI SoC which is an updated version of
LCDC IP that was found on TI's DA850 SoC supports 2048*2048 resolution.
Below are the encoding details:
Width:
Pixels Per Line = {pplmsb, ppllsb, 4'b1111} + 1
Where pplmsb:1bit==>Raster Timing0[3], ppllsb:6bits==>Raster Timing0[9:4].
And encoded value can range from 16 to 2048 in multiples of 16.

Height:
Lines Per Panel = {lpp_b10, lpp}
Where lpp:10bits==>Raster Timing1[9:0], lpp_b10:1bit==>Raster Timing2[26].
And encoded value can range from 1 to 2048, programmable range is 0 to
2047.

Patch is verified on emulation platform of upcoming SoC for updated
feature and on DA850 platform to make sure nothing existing breaks.

Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agofb: fix au1100fb bitrot.
Manuel Lauss [Fri, 30 Sep 2011 18:49:43 +0000 (20:49 +0200)]
fb: fix au1100fb bitrot.

Removes some bitrot from the au1100fb driver and fix it up so it works again.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agomx3fb: fix NULL pointer dereference in screen blanking.
Wolfram Stering [Fri, 23 Sep 2011 12:09:35 +0000 (14:09 +0200)]
mx3fb: fix NULL pointer dereference in screen blanking.

When blanking an already blanked framebuffer, a kernel NULL pointer
dereference occurred, because mx3fb driver handles all kinds of screen
blanking (normal, vsync suspend, powerdown) in the same way.
Certain programs (Xorg X11 server) first do a normal blank, followed by
a powerdown blank, which triggered the bug.

Add an additional safeguard and make sdc_disable_channel() safe against
multiple calls independent of other logic.

Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agovideo: irq: Remove IRQF_DISABLED
Yong Zhang [Thu, 22 Sep 2011 08:59:16 +0000 (16:59 +0800)]
video: irq: Remove IRQF_DISABLED

Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).

So now this flag is a NOOP and can be removed.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agosmscufx: change edid data to u8 instead of char
Dan Carpenter [Wed, 21 Sep 2011 07:16:24 +0000 (10:16 +0300)]
smscufx: change edid data to u8 instead of char

Having "edid" as char caused a problem in ufx_read_edid() where we
compared "edid[i] != 0xFF".  Because of the type difference, the
condition was never true and the error checking failed.

Also I added a __user notation to silence a sparse complaint.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: remove unusued MEM_ALLOC_THRESHOLD
Timur Tabi [Thu, 15 Sep 2011 21:44:58 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: remove unusued MEM_ALLOC_THRESHOLD

If there was ever any code that used MEM_ALLOC_THRESHOLD, it was removed a
long time ago.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: the video buffer is not I/O memory
Timur Tabi [Thu, 15 Sep 2011 21:44:57 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: the video buffer is not I/O memory

The video buffer is not uncached memory-mapped I/O, so don't tag the virtual
address as __iomem.  It's also not a u8*.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: use a normal for-loop to uninstall framebuffers
Timur Tabi [Thu, 15 Sep 2011 21:44:56 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: use a normal for-loop to uninstall framebuffers

Uninstalling the framebuffers in reverse order is unnecessary and makes
the for-loop awkward.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: fix memory leak on error
Timur Tabi [Thu, 15 Sep 2011 21:44:55 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: fix memory leak on error

We were forgetting to unmap the video memory if fsl_diu_check_var() fails.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: fix potential memcpy buffer overflow bug
Timur Tabi [Thu, 15 Sep 2011 21:44:54 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: fix potential memcpy buffer overflow bug

It makes no sense to limit the size of a strncpy() to the length of
the source string.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: set the driver name to "fsl-diu-fb"
Timur Tabi [Thu, 15 Sep 2011 21:44:53 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: set the driver name to "fsl-diu-fb"

Use the name "fsl-diu-fb" in the Freescale DIU framebuffer driver
during registrations.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: improve local variable usage in some functions
Timur Tabi [Thu, 15 Sep 2011 21:44:52 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: improve local variable usage in some functions

Clean up the local variable usage in request_irq_local() and allocate_buf().
This streamlines the code without affecting functionality.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: remove redundant default video mode
Timur Tabi [Thu, 15 Sep 2011 21:44:51 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: remove redundant default video mode

The framebuffer layer already uses the first video mode defined in the
fb_videomode array as a default, so there's no need to duplicate the
first entry into a stand-alone structure.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: improve device tree usage
Timur Tabi [Thu, 15 Sep 2011 21:44:50 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: improve device tree usage

Implement various improvements to the way the Freescale DIU framebuffer
driver access the device tree.

1) Use of_iomap() instead of of_address_to_resource() and ioremap()

2) Use be32_to_cpup() instead of directly dereferencing the device_node
   pointer.

3) Rename variable 'ofdev' to 'pdev' to avoid any confusion that it's
   a platform_device pointer, not an of_device pointer (of_device no
   longer exists).

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: fix compilation warning
Timur Tabi [Thu, 15 Sep 2011 21:44:49 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: fix compilation warning

Fix this compilation warning in the Freescale DIU framebuffer driver:

warning: 'dummy_ad_addr' may be used uninitialized in this function

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: remove unused ioctls
Timur Tabi [Thu, 15 Sep 2011 21:44:48 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: remove unused ioctls

Remove some unused ioctl commands, and treat those commands as unsupported
instead of ignored.

Also remove struct mfb_alpha, which isn't used by any ioctl.  It may have
been once intended for MFB_SET_ALPHA, but that ioctl uses a different
data structure.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: clean up printk usage
Timur Tabi [Thu, 15 Sep 2011 21:44:47 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: clean up printk usage

Remove debug printk messages (they don't help in debugging), replace
printk(KERN_xxx with its pr_xxx or dev_xxx equivalent, and add a couple
missing error messages.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agodrivers/video: fsl-diu-fb: clean up whitespace and formatting
Timur Tabi [Thu, 15 Sep 2011 21:44:46 +0000 (16:44 -0500)]
drivers/video: fsl-diu-fb: clean up whitespace and formatting

Fix various indentation and line length problems in the Freescale
DIU framebuffer driver.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agosmscufx: reduce number of casts in ufx_raw_rect
Steve Glendinning [Wed, 7 Sep 2011 09:34:06 +0000 (10:34 +0100)]
smscufx: reduce number of casts in ufx_raw_rect

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agovideo: s3c-fb: Add S5P64X0 specific s3c_fb_driverdata
Ajay Kumar [Fri, 9 Sep 2011 18:00:51 +0000 (14:00 -0400)]
video: s3c-fb: Add S5P64X0 specific s3c_fb_driverdata

This patch:
-- Adds s3c_fb_driverdata for S5P64X0, which supports 3 windows.
-- Also, register "s5p64x0-fb" type driver_data.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agofbdev: fix indentation in modedb.c
Timur Tabi [Tue, 13 Sep 2011 16:05:08 +0000 (11:05 -0500)]
fbdev: fix indentation in modedb.c

Fix the incorrect indentation in functions fb_try_mode() and fb_find_mode().

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agofbdev: sh_mobile_lcdc: Remove sh_mobile_lcdc_set_bpp()
Laurent Pinchart [Wed, 31 Aug 2011 11:00:59 +0000 (13:00 +0200)]
fbdev: sh_mobile_lcdc: Remove sh_mobile_lcdc_set_bpp()

The function duplicates code found in sh_mobile_check_var(). Remove
sh_mobile_lcdc_set_bpp() and call sh_mobile_check_var() instead.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agofbdev: sh_mobile_lcdc: Split channel initialization from probe function
Laurent Pinchart [Wed, 31 Aug 2011 11:00:58 +0000 (13:00 +0200)]
fbdev: sh_mobile_lcdc: Split channel initialization from probe function

Move channel initialization to sh_mobile_lcdc_channel_init() and call
the function from sh_mobile_lcdc_probe(). This makes the code more
readable and prepares it for fix/var initialization rework.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agofbdev: sh_mobile_lcdc: Avoid forward declarations
Laurent Pinchart [Wed, 31 Aug 2011 11:00:57 +0000 (13:00 +0200)]
fbdev: sh_mobile_lcdc: Avoid forward declarations

Reorder probe/remove functions to avoid forward declarations.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agofbdev: sh_mobile_lcdc: Update fix.line_length in .fb_set_par()
Laurent Pinchart [Wed, 31 Aug 2011 11:00:56 +0000 (13:00 +0200)]
fbdev: sh_mobile_lcdc: Update fix.line_length in .fb_set_par()

Instead of updating the fixed screen information line length manually
after calling fb_set_var() in sh_mobile_fb_reconfig(), update the field
in the .fb_set_par() operation handler.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agofbdev: sh_mobile_lcdc: use display information in info for panning
Laurent Pinchart [Wed, 31 Aug 2011 11:00:55 +0000 (13:00 +0200)]
fbdev: sh_mobile_lcdc: use display information in info for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agofbdev: sh_mobile_lcdc: Add support for format changes at runtime
Laurent Pinchart [Wed, 31 Aug 2011 11:00:54 +0000 (13:00 +0200)]
fbdev: sh_mobile_lcdc: Add support for format changes at runtime

Implement .fb_set_par to support frame buffer format changes at runtime.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agofbdev: sh_mobile_lcdc: Adjust requested parameters in .fb_check_var
Laurent Pinchart [Wed, 31 Aug 2011 11:00:53 +0000 (13:00 +0200)]
fbdev: sh_mobile_lcdc: Adjust requested parameters in .fb_check_var

Instead of failing when the requested fb_var_screeninfo parameters are
not supported, adjust the parameters according to the hardware
capabilities.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agosh_mobile_meram: Reset ICBs at unregistration time
Laurent Pinchart [Wed, 31 Aug 2011 11:00:52 +0000 (13:00 +0200)]
sh_mobile_meram: Reset ICBs at unregistration time

When ICBs are unregistered and later reused they need to be reset to
avoid data corruption. Set the WBF, WF and RF bits to make sure ICBs get
reset properly.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agoAdd support for SMSC UFX6000/7000 USB display adapters
Steve Glendinning [Thu, 18 Aug 2011 14:20:07 +0000 (15:20 +0100)]
Add support for SMSC UFX6000/7000 USB display adapters

This patch adds framebuffer suport for SMSC's UFX6000 (USB 2.0) and
UFX7000 (USB 3.0) display adapters.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agofb: sh-mobile: Fix deadlock risk between lock_fb_info() and console_lock()
Bruno Prémont [Fri, 2 Sep 2011 17:24:03 +0000 (19:24 +0200)]
fb: sh-mobile: Fix deadlock risk between lock_fb_info() and console_lock()

Following on Herton's patch "fb: avoid possible deadlock caused by
fb_set_suspend" which moves lock_fb_info() out of fb_set_suspend()
to its callers, correct sh-mobile's locking around call to
fb_set_suspend() and the same sort of deaklocks with console_lock()
due to order of taking the lock.

console_lock() must be taken while fb_info is already locked and fb_info
must be locked while calling fb_set_suspend().

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: stable@kernel.org
10 years agofb: avoid possible deadlock caused by fb_set_suspend
Herton Ronaldo Krzesinski [Fri, 17 Jun 2011 19:02:39 +0000 (19:02 +0000)]
fb: avoid possible deadlock caused by fb_set_suspend

A lock ordering issue can cause deadlocks: in framebuffer/console code,
all needed struct fb_info locks are taken before acquire_console_sem(),
in places which need to take console semaphore.

But fb_set_suspend is always called with console semaphore held, and
inside it we call lock_fb_info which gets the fb_info lock, inverse
locking order of what the rest of the code does. This causes a real
deadlock issue, when we write to state fb sysfs attribute (which calls
fb_set_suspend) while a framebuffer is being unregistered by
remove_conflicting_framebuffers, as can be shown by following show
blocked state trace on a test program which loads i915 and runs another
forked processes writing to state attribute:

Test process with semaphore held and trying to get fb_info lock:
..
fb-test2      D 0000000000000000     0   237    228 0x00000000
 ffff8800774f3d68 0000000000000082 00000000000135c0 00000000000135c0
 ffff880000000000 ffff8800774f3fd8 ffff8800774f3fd8 ffff880076ee4530
 00000000000135c0 ffff8800774f3fd8 ffff8800774f2000 00000000000135c0
Call Trace:
 [<ffffffff8141287a>] __mutex_lock_slowpath+0x11a/0x1e0
 [<ffffffff814142f2>] ? _raw_spin_lock_irq+0x22/0x40
 [<ffffffff814123d3>] mutex_lock+0x23/0x50
 [<ffffffff8125dfc5>] lock_fb_info+0x25/0x60
 [<ffffffff8125e3f0>] fb_set_suspend+0x20/0x80
 [<ffffffff81263e2f>] store_fbstate+0x4f/0x70
 [<ffffffff812e7f70>] dev_attr_store+0x20/0x30
 [<ffffffff811c46b4>] sysfs_write_file+0xd4/0x160
 [<ffffffff81155a26>] vfs_write+0xc6/0x190
 [<ffffffff81155d51>] sys_write+0x51/0x90
 [<ffffffff8100c012>] system_call_fastpath+0x16/0x1b
..
modprobe process stalled because has the fb_info lock (got inside
unregister_framebuffer) but waiting for the semaphore held by the
test process which is waiting to get the fb_info lock:
..
modprobe      D 0000000000000000     0   230    218 0x00000000
 ffff880077a4d618 0000000000000082 0000000000000001 0000000000000001
 ffff880000000000 ffff880077a4dfd8 ffff880077a4dfd8 ffff8800775a2e20
 00000000000135c0 ffff880077a4dfd8 ffff880077a4c000 00000000000135c0
Call Trace:
 [<ffffffff81411fe5>] schedule_timeout+0x215/0x310
 [<ffffffff81058051>] ? get_parent_ip+0x11/0x50
 [<ffffffff814130dd>] __down+0x6d/0xb0
 [<ffffffff81089f71>] down+0x41/0x50
 [<ffffffff810629ac>] acquire_console_sem+0x2c/0x50
 [<ffffffff812ca53d>] unbind_con_driver+0xad/0x2d0
 [<ffffffff8126f5f7>] fbcon_event_notify+0x457/0x890
 [<ffffffff814144ff>] ? _raw_spin_unlock_irqrestore+0x1f/0x50
 [<ffffffff81058051>] ? get_parent_ip+0x11/0x50
 [<ffffffff8141836d>] notifier_call_chain+0x4d/0x70
 [<ffffffff8108a3b8>] __blocking_notifier_call_chain+0x58/0x80
 [<ffffffff8108a3f6>] blocking_notifier_call_chain+0x16/0x20
 [<ffffffff8125dabb>] fb_notifier_call_chain+0x1b/0x20
 [<ffffffff8125e6ac>] unregister_framebuffer+0x7c/0x130
 [<ffffffff8125e8b3>] remove_conflicting_framebuffers+0x153/0x180
 [<ffffffff8125eef3>] register_framebuffer+0x93/0x2c0
 [<ffffffffa0331112>] drm_fb_helper_single_fb_probe+0x252/0x2f0 [drm_kms_helper]
 [<ffffffffa03314a3>] drm_fb_helper_initial_config+0x2f3/0x6d0 [drm_kms_helper]
 [<ffffffffa03318dd>] ? drm_fb_helper_single_add_all_connectors+0x5d/0x1c0 [drm_kms_helper]
 [<ffffffffa037b588>] intel_fbdev_init+0xa8/0x160 [i915]
 [<ffffffffa0343d74>] i915_driver_load+0x854/0x12b0 [i915]
 [<ffffffffa02f0e7e>] drm_get_pci_dev+0x19e/0x360 [drm]
 [<ffffffff8141821d>] ? sub_preempt_count+0x9d/0xd0
 [<ffffffffa0386f91>] i915_pci_probe+0x15/0x17 [i915]
 [<ffffffff8124481f>] local_pci_probe+0x5f/0xd0
 [<ffffffff81244f89>] pci_device_probe+0x119/0x120
 [<ffffffff812eccaa>] ? driver_sysfs_add+0x7a/0xb0
 [<ffffffff812ed003>] driver_probe_device+0xa3/0x290
 [<ffffffff812ed1f0>] ? __driver_attach+0x0/0xb0
 [<ffffffff812ed29b>] __driver_attach+0xab/0xb0
 [<ffffffff812ed1f0>] ? __driver_attach+0x0/0xb0
 [<ffffffff812ebd3e>] bus_for_each_dev+0x5e/0x90
 [<ffffffff812ecc2e>] driver_attach+0x1e/0x20
 [<ffffffff812ec6f2>] bus_add_driver+0xe2/0x320
 [<ffffffffa03aa000>] ? i915_init+0x0/0x96 [i915]
 [<ffffffff812ed536>] driver_register+0x76/0x140
 [<ffffffffa03aa000>] ? i915_init+0x0/0x96 [i915]
 [<ffffffff81245216>] __pci_register_driver+0x56/0xd0
 [<ffffffffa02f1264>] drm_pci_init+0xe4/0xf0 [drm]
 [<ffffffffa03aa000>] ? i915_init+0x0/0x96 [i915]
 [<ffffffffa02e84a8>] drm_init+0x58/0x70 [drm]
 [<ffffffffa03aa094>] i915_init+0x94/0x96 [i915]
 [<ffffffff81002194>] do_one_initcall+0x44/0x190
 [<ffffffff810a066b>] sys_init_module+0xcb/0x210
 [<ffffffff8100c012>] system_call_fastpath+0x16/0x1b
..

fb-test2 which reproduces above is available on kernel.org bug #26232.
To solve this issue, avoid calling lock_fb_info inside fb_set_suspend,
and move it out to where needed (callers of fb_set_suspend must call
lock_fb_info before if needed). So far, the only place which needs to
call lock_fb_info is store_fbstate, all other places which calls
fb_set_suspend are suspend/resume hooks that should not need the lock as
they should be run only when processes are already frozen in
suspend/resume.

References: https://bugzilla.kernel.org/show_bug.cgi?id=26232
Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: stable@kernel.org
10 years agofbdev: au1200fb: silence debug output
Manuel Lauss [Fri, 2 Sep 2011 14:40:51 +0000 (16:40 +0200)]
fbdev: au1200fb: silence debug output

it's annoying and takes up way too much space in dmesg.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agovideo: mb862xx-i2c: fix for reliable decoder register access
Anatolij Gustschin [Thu, 1 Sep 2011 15:53:41 +0000 (17:53 +0200)]
video: mb862xx-i2c: fix for reliable decoder register access

Increase delay when polling for tx status. This fixes
the unreliable video decoder i2c register access.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agofbdev: fix parsing of standard timings
Tomi Valkeinen [Thu, 25 Aug 2011 12:36:40 +0000 (15:36 +0300)]
fbdev: fix parsing of standard timings

The standard timings parses uses 1:1 dimensions when the ratio in the
EDID data is 0. However, for EDID 1.3 and later the dimensions are 16:10
when the ratio is 0.

Pass the version and revision numbers to get_std_timing() which can then
make the right decision about dimensions.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agovideo: nuc900fb: remove include of mach/clkdev.h
Axel Lin [Thu, 1 Sep 2011 00:13:38 +0000 (08:13 +0800)]
video: nuc900fb: remove include of mach/clkdev.h

Since commit aa3831cf9d29cfeaebd8c2169378b74111364487
"ARM: Consolidate the clkdev header files",
the header file arch/arm/mach-nuc93x/include/mach/clkdev.h is removed.

This patch fixes below build error:

drivers/video/nuc900fb.c:42:25: error: mach/clkdev.h: No such file or directory
make[2]: *** [drivers/video/nuc900fb.o] Error 1
make[1]: *** [drivers/video] Error 2
make: *** [drivers] Error 2

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agovideo: mxsfb: add missing include of linux/module.h
Axel Lin [Thu, 1 Sep 2011 00:11:59 +0000 (08:11 +0800)]
video: mxsfb: add missing include of linux/module.h

Include linux/module.h to fix below build error:

                 from drivers/video/mxsfb.c:42:
arch/arm/mach-mxs/include/mach/memory.h:22:1: warning: this is the location of the previous definition
drivers/video/mxsfb.c:574: error: 'THIS_MODULE' undeclared here (not in a function)
drivers/video/mxsfb.c:893: warning: data definition has no type or storage class
drivers/video/mxsfb.c:893: warning: type defaults to 'int' in declaration of 'MODULE_DEVICE_TABLE'
drivers/video/mxsfb.c:893: warning: parameter names (without types) in function declaration
drivers/video/mxsfb.c:917: error: expected declaration specifiers or '...' before string constant
drivers/video/mxsfb.c:917: warning: data definition has no type or storage class
drivers/video/mxsfb.c:917: warning: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION'
drivers/video/mxsfb.c:917: warning: function declaration isn't a prototype
drivers/video/mxsfb.c:918: error: expected declaration specifiers or '...' before string constant
drivers/video/mxsfb.c:918: warning: data definition has no type or storage class
drivers/video/mxsfb.c:918: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR'
drivers/video/mxsfb.c:918: warning: function declaration isn't a prototype
drivers/video/mxsfb.c:919: error: expected declaration specifiers or '...' before string constant
drivers/video/mxsfb.c:919: warning: data definition has no type or storage class
drivers/video/mxsfb.c:919: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE'
drivers/video/mxsfb.c:919: warning: function declaration isn't a prototype
make[2]: *** [drivers/video/mxsfb.o] Error 1
make[1]: *** [drivers/video] Error 2
make: *** [drivers] Error 2

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agoMerge branch 'sh-mobile-lcdc' of git://linuxtv.org/pinchartl/fbdev into fbdev-next
Florian Tobias Schandinat [Tue, 30 Aug 2011 20:02:02 +0000 (20:02 +0000)]
Merge branch 'sh-mobile-lcdc' of git://linuxtv.org/pinchartl/fbdev into fbdev-next

10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev...
Florian Tobias Schandinat [Mon, 29 Aug 2011 09:14:30 +0000 (09:14 +0000)]
Merge branch 'master' of git://git./linux/kernel/git/lethal/fbdev-3.x into fbdev-next

Conflicts:
drivers/video/atmel_lcdfb.c

10 years agovideo: s3c-fb: Add support EXYNOS4 FIMD
Jingoo Han [Mon, 22 Aug 2011 03:16:04 +0000 (12:16 +0900)]
video: s3c-fb: Add support EXYNOS4 FIMD

This patch adds struct s3c_fb_driverdata s3c_fb_data_exynos4 for EXYNOS4
and adds lcd clock gating support.

FIMD driver needs two clocks for FIMD IP and LCD pixel clock. Previously,
both clocks are provided by using bus clock such as HCLK. However, EXYNOS4
can not select HCLK for LCD pixel clock because the EXYNOS4 FIMD IP does not
have the CLKSEL bit of VIDCON0. So, FIMD driver should provide the lcd clock
using SCLK_FIMD as LCD pixel clock for EXYNOS4.

The driver selects enabling lcd clock according to has_clksel which means
the CLKSEL bit of VIDCON0. If there is has_clksel, the driver will not
enable the lcd clock using SCLK_FIMD because bus clock using HCLK is used
a LCD pixel clock.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agoudlfb: Enable fbcon access to framebuffer by default
Bernie Thompson [Sun, 21 Aug 2011 20:35:39 +0000 (13:35 -0700)]
udlfb: Enable fbcon access to framebuffer by default

Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agoudlfb: Enable fb_defio by default
Bernie Thompson [Sun, 21 Aug 2011 20:35:38 +0000 (13:35 -0700)]
udlfb: Enable fb_defio by default

Enables page fault based detection of mmap writes to the framebuffer,
which allows standard fbdev apps (like the generic fbdev xorg driver)
to work on DisplayLink devices.

Not all bugs are shaken out of the fb_defio path of udlfb, but it's
tantalizingly close, so this seems a good time to enable by default.

Alternatively, option can be disabled when running with an xorg driver
that can more directly communicate damaged regions of the framebuffer
via IOCTL. This is a simpler, higher perf option, when available.

Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agoudlfb: Add module option to do without shadow framebuffer
Stuart Hopkins [Sun, 21 Aug 2011 20:34:17 +0000 (13:34 -0700)]
udlfb: Add module option to do without shadow framebuffer

By default, udlfb allocates a 2nd buffer to shadow what's across
the bus on the USB device.  It can operate without this shadow,
but then it cannot tell which pixels have changed, and must send all.

Saves host memory, but worsens the USB 2.0 bus bottleneck.

This option allows users in very low memory situations (e.g.
bifferboard) to optionally turn off this shadow framebuffer.

Signed-off-by: Stuart Hopkins <stuart@linux-depot.com>
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agoudlfb: fix issues found with Sparse static analysis
Dr. David Alan Gilbert [Sun, 21 Aug 2011 20:34:15 +0000 (13:34 -0700)]
udlfb: fix issues found with Sparse static analysis

Add __user casting, a missing copy_from_user, and proper boolean

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agoudlfb: Search config descriptor if not at device level
Andrew Kephart [Sun, 21 Aug 2011 20:34:13 +0000 (13:34 -0700)]
udlfb: Search config descriptor if not at device level

For at least one DisplayLink device, the vendor-specific information can
be found in the config descriptor instead of as a separate, device-level
descriptor.  This patch searches the current interface (of the current
config descriptor) for the DL vendor-specific descriptor.

Signed-off-by: Andrew Kephart <akephart@akephart.org>
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agoudlfb: add more comprehensive support for DPMS FB_BLANK_* modes
Bernie Thompson [Sun, 21 Aug 2011 20:34:11 +0000 (13:34 -0700)]
udlfb: add more comprehensive support for DPMS FB_BLANK_* modes

Fixes earlier problems where monitor would not return from blank

Test with any DisplayLink-based USB 2.0 graphics adapter
sudo nano /sys/class/graphics/fb?/blank
and write out single digit FB_BLANK_* code from include/linux/fb.h

Supports on (0), blank (1), suspend (2,3), powerdown (4)

Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
10 years agoMerge branch 'pan-fixes' of git://linuxtv.org/pinchartl/fbdev into fbdev-next
Florian Tobias Schandinat [Wed, 24 Aug 2011 09:20:02 +0000 (09:20 +0000)]
Merge branch 'pan-fixes' of git://linuxtv.org/pinchartl/fbdev into fbdev-next

10 years agoLinux 3.1-rc3 v3.1-rc3
Linus Torvalds [Mon, 22 Aug 2011 18:42:53 +0000 (11:42 -0700)]
Linux 3.1-rc3

10 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 22 Aug 2011 18:26:56 +0000 (11:26 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf tools: Add group event scheduling option to perf record/stat
  MAINTAINERS: Fix list of perf events source files
  perf tools: Fix build against newer glibc
  perf tools: Fix error handling of unknown events
  perf evlist: Fix missing event name init for default event
  perf list: Fix exit value

10 years agoMerge branch 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 22 Aug 2011 18:25:44 +0000 (11:25 -0700)]
Merge branch 'stable/bug.fixes' of git://git./linux/kernel/git/konrad/xen

* 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/tracing: Fix tracing config option properly
  xen: Do not enable PV IPIs when vector callback not present
  xen/x86: replace order-based range checking of M2P table by linear one
  xen: xen-selfballoon.c needs more header files

10 years agoxen/tracing: Fix tracing config option properly
Jeremy Fitzhardinge [Thu, 11 Aug 2011 20:17:20 +0000 (13:17 -0700)]
xen/tracing: Fix tracing config option properly

Steven Rostedt says we should use CONFIG_EVENT_TRACING.

Cc:Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
10 years agoxen: Do not enable PV IPIs when vector callback not present
Stefano Stabellini [Wed, 17 Aug 2011 13:15:00 +0000 (15:15 +0200)]
xen: Do not enable PV IPIs when vector callback not present

Fix regression for HVM case on older (<4.1.1) hypervisors caused by

  commit 99bbb3a84a99cd04ab16b998b20f01a72cfa9f4f
  Author: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
  Date:   Thu Dec 2 17:55:10 2010 +0000

    xen: PV on HVM: support PV spinlocks and IPIs

This change replaced the SMP operations with event based handlers without
taking into account that this only works when the hypervisor supports
callback vectors. This causes unexplainable hangs early on boot for
HVM guests with more than one CPU.

BugLink: http://bugs.launchpad.net/bugs/791850
CC: stable@kernel.org
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Tested-and-Reported-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
10 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1...
Linus Torvalds [Mon, 22 Aug 2011 01:13:19 +0000 (18:13 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/ieee1394/linux1394-2.6

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: core: handle ack_busy when fetching the Config ROM

10 years agoBtrfs: fix 64 bit divide problem
Josef Bacik [Sat, 20 Aug 2011 12:29:51 +0000 (08:29 -0400)]
Btrfs: fix 64 bit divide problem

This fixes a regression introduced by commit cdcb725c05fe ("Btrfs: check
if there is enough space for balancing smarter").  We can't do 64-bit
divides on 32-bit architectures.

In cases where we need to divide/multiply by 2 we should just left/right
shift respectively, and in cases where theres N number of devices use
do_div.  Also make the counters u64 to match up with rw_devices.
Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Acked-and-tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Linus Torvalds [Sun, 21 Aug 2011 13:59:41 +0000 (06:59 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: flush any pending end_io requests before DIO reads w/dioread_nolock
  ext4: fix nomblk_io_submit option so it correctly converts uninit blocks
  ext4: Resolve the hang of direct i/o read in handling EXT4_IO_END_UNWRITTEN.
  ext4: call ext4_ioend_wait and ext4_flush_completed_IO in ext4_evict_inode
  ext4: Fix ext4_should_writeback_data() for no-journal mode

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Sun, 21 Aug 2011 13:59:02 +0000 (06:59 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: sound/aoa/fabrics/layout.c: remove unneeded kfree
  ALSA: hda - Fix error check from snd_hda_get_conn_index() in patch_cirrus.c
  ALSA: hda - Don't spew too many ELD errors
  ALSA: usb-audio - Fix missing mixer dB information
  ALSA: hda - Add "PCM" volume to vmaster slave list
  ALSA: hda - Fix duplicated capture-volume creation for ALC268 models
  ALSA: ac97: Add HP Compaq dc5100 SFF(PT003AW) to Headphone Jack Sense whitelist
  ALSA: snd_usb_caiaq: track submitted output urbs

10 years agopci: fix new kernel-doc warning in pci.c
Randy Dunlap [Sat, 20 Aug 2011 18:49:43 +0000 (11:49 -0700)]
pci: fix new kernel-doc warning in pci.c

Fix new kernel-doc warning in pci.c:

  Warning(drivers/pci/pci.c:3259): No description found for parameter 'mps'
  Warning(drivers/pci/pci.c:3259): Excess function parameter 'rq' description in 'pcie_set_mps'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoALSA: sound/aoa/fabrics/layout.c: remove unneeded kfree
Julia Lawall [Sat, 20 Aug 2011 06:12:41 +0000 (08:12 +0200)]
ALSA: sound/aoa/fabrics/layout.c: remove unneeded kfree

The label outnodev is only used when kzalloc has not yet taken place or has
failed, so there is no need for the call for kfree under this label.

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

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
10 years agoALSA: hda - Fix error check from snd_hda_get_conn_index() in patch_cirrus.c
Takashi Iwai [Sat, 20 Aug 2011 07:19:59 +0000 (09:19 +0200)]
ALSA: hda - Fix error check from snd_hda_get_conn_index() in patch_cirrus.c

snd_hda_get_conn_index() returns a negative value while the current code
stores it in an unsigned int.  It must be stored in a signed integer.

Reported-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
10 years agoALSA: hda - Don't spew too many ELD errors
Takashi Iwai [Sat, 20 Aug 2011 07:14:45 +0000 (09:14 +0200)]
ALSA: hda - Don't spew too many ELD errors

Currently HD-audio driver shows the all error ELD byte as an error
in the kernel message.  This is annoying when the video driver doesn't
set the correct ELD from the beginning. e.g. radeon sends a zero-byte
data, but we still check ELD with the fixed 128 byte as a workaround
for some broken devices, it spews 128-times errors.

For avoiding this, the driver aborts reading when the first byte is
invalid.  In such a case, the whole data is certainly invalid.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
Linus Torvalds [Sat, 20 Aug 2011 06:07:08 +0000 (23:07 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/drm-intel

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/drm-intel:
  drm/i915: set GFX_MODE to pre-Ivybridge default value even on Ivybridge

10 years agoext4: flush any pending end_io requests before DIO reads w/dioread_nolock
Jiaying Zhang [Fri, 19 Aug 2011 23:13:32 +0000 (19:13 -0400)]
ext4: flush any pending end_io requests before DIO reads w/dioread_nolock

There is a race between ext4 buffer write and direct_IO read with
dioread_nolock mount option enabled. The problem is that we clear
PageWriteback flag during end_io time but will do
uninitialized-to-initialized extent conversion later with dioread_nolock.
If an O_direct read request comes in during this period, ext4 will return
zero instead of the recently written data.

This patch checks whether there are any pending uninitialized-to-initialized
extent conversion requests before doing O_direct read to close the race.
Note that this is just a bandaid fix. The fundamental issue is that we
clear PageWriteback flag before we really complete an IO, which is
problem-prone. To fix the fundamental issue, we may need to implement an
extent tree cache that we can use to look up pending to-be-converted extents.

Signed-off-by: Jiaying Zhang <jiayingz@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
10 years agodrm/i915: set GFX_MODE to pre-Ivybridge default value even on Ivybridge
Jesse Barnes [Fri, 12 Aug 2011 22:28:32 +0000 (15:28 -0700)]
drm/i915: set GFX_MODE to pre-Ivybridge default value even on Ivybridge

Prior to Ivybridge, the GFX_MODE would default to 0x800, meaning that
MI_FLUSH would flush the TLBs in addition to the rest of the caches
indicated in the MI_FLUSH command.  However starting with Ivybridge, the
register defaults to 0x2800 out of reset, meaning that to invalidate the
TLB we need to use PIPE_CONTROL.  Since we're not doing that yet, go
back to the old default so things work.

v2: don't forget to actually *clear* the new bit

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
10 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 19 Aug 2011 17:47:07 +0000 (10:47 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

* 'for-linus' of git://git.kernel.dk/linux-block: (23 commits)
  Revert "cfq: Remove special treatment for metadata rqs."
  block: fix flush machinery for stacking drivers with differring flush flags
  block: improve rq_affinity placement
  blktrace: add FLUSH/FUA support
  Move some REQ flags to the common bio/request area
  allow blk_flush_policy to return REQ_FSEQ_DATA independent of *FLUSH
  xen/blkback: Make description more obvious.
  cfq-iosched: Add documentation about idling
  block: Make rq_affinity = 1 work as expected
  block: swim3: fix unterminated of_device_id table
  block/genhd.c: remove useless cast in diskstats_show()
  drivers/cdrom/cdrom.c: relax check on dvd manufacturer value
  drivers/block/drbd/drbd_nl.c: use bitmap_parse instead of __bitmap_parse
  bsg-lib: add module.h include
  cfq-iosched: Reduce linked group count upon group destruction
  blk-throttle: correctly determine sync bio
  loop: fix deadlock when sysfs and LOOP_CLR_FD race against each other
  loop: add BLK_DEV_LOOP_MIN_COUNT=%i to allow distros 0 pre-allocated loop devices
  loop: add management interface for on-demand device allocation
  loop: replace linked list of allocated devices with an idr index
  ...

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
Linus Torvalds [Fri, 19 Aug 2011 17:02:37 +0000 (10:02 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: OF: Don't crash when bridge parent is NULL.
  PCI: export pcie_bus_configure_settings symbol
  PCI: code and comments cleanup
  PCI: make cardbus-bridge resources optional
  PCI: make SRIOV resources optional
  PCI : ability to relocate assigned pci-resources
  PCI: honor child buses add_size in hot plug configuration
  PCI: Set PCI-E Max Payload Size on fabric

10 years agoPCI: OF: Don't crash when bridge parent is NULL.
David Daney [Tue, 16 Aug 2011 18:24:37 +0000 (11:24 -0700)]
PCI: OF: Don't crash when bridge parent is NULL.

In pcibios_get_phb_of_node(), we will crash while booting if
bus->bridge->parent is NULL.

Check for this case and avoid dereferencing the NULL pointer.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
10 years agostaging: xgifb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
staging: xgifb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agovt8623fb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
vt8623fb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agovt8500lcdfb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
vt8500lcdfb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agovga16fb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
vga16fb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agovfb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
vfb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agotridentfb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
tridentfb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agosm501fb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
sm501fb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agosisfb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
sisfb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Fix checkpatch.pl warnings in the surrounding code.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agosavagefb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
savagefb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it. Also use the
aligned fix.line_length and not the (possible) unaligned xres_virtual.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tormod Volden <debian.tormod@gmail.com>
10 years agos3fb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
s3fb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agos3c-fb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
s3c-fb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
10 years agopm3fb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
pm3fb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agopm2fb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
pm2fb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agoneofb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
neofb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agomx3fb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
mx3fb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it. Also use the
aligned fix.line_length and not the (possible) unaligned xres_virtual.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
10 years agomb862xxfb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
mb862xxfb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agointelfb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
intelfb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agoimsttfb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
imsttfb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agohgafb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
hgafb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agogxt4500: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
gxt4500: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agog364fb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
g364fb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agofbdev: unicore32: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
fbdev: unicore32: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
10 years agofbdev: da8xx: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
fbdev: da8xx: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agoradeonfb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
radeonfb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it. Also use the
aligned fix.line_length and not the (possible) unaligned xres_virtual.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agoatmel_lcdfb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
atmel_lcdfb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
10 years agoarkfb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
arkfb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agoacornfb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
acornfb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agoacornfb: Dont BUG() on invalid pan parameters
Laurent Pinchart [Wed, 25 May 2011 11:43:53 +0000 (13:43 +0200)]
acornfb: Dont BUG() on invalid pan parameters

The driver currently BUG()s if the pan parameters passed directly from
userspace are invalid. Return -EINVAL instead.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years ago68328fb: use display information in info not in var for panning
Laurent Pinchart [Wed, 25 May 2011 09:34:52 +0000 (11:34 +0200)]
68328fb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agoRevert "cfq: Remove special treatment for metadata rqs."
Jens Axboe [Fri, 19 Aug 2011 06:34:48 +0000 (08:34 +0200)]
Revert "cfq: Remove special treatment for metadata rqs."

We have a kernel build regression since 3.1-rc1, which is about 10%
regression. The kernel source is in an ext3 filesystem.
Alex Shi bisect it to commit:
commit a07405b7802691d29ab3b23bdc76ee6d006aad0b
Author: Justin TerAvest <teravest@google.com>
Date:   Sun Jul 10 22:09:19 2011 +0200

    cfq: Remove special treatment for metadata rqs.

Apparently this is caused by lack metadata preemption, where ext3/ext4
do use READ_META. I didn't see a way to fix the issue, so suggest
reverting the patch.

This reverts commit a07405b7802691d29ab3b23bdc76ee6d006aad0b.

Reported-by: Alex Shi<alex.shi@intel.com>
Reported-by: Shaohua Li<shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
10 years agofbdev: sh_mobile_meram: Remove unneeded sh_mobile_meram.h
Laurent Pinchart [Wed, 13 Jul 2011 10:13:47 +0000 (12:13 +0200)]
fbdev: sh_mobile_meram: Remove unneeded sh_mobile_meram.h

The drivers/video/sh_mobile_meram.h header contains unused definitions
and declarations. Move the only used macro to sh_mobile_meram.c, and
remove the header.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agofbdev: sh_mobile_meram: Fix MExxCTL register save on runtime PM suspend
Laurent Pinchart [Wed, 13 Jul 2011 10:13:47 +0000 (12:13 +0200)]
fbdev: sh_mobile_meram: Fix MExxCTL register save on runtime PM suspend

To reset the ICB on resume the MExxCTL register needs to be OR'ed with
MExxCTL_WBF | MExxCTL_WF | MExxCTL_RF, no set to that value. Fix this.

This fixes corruption at the bottom of the display when resuming from
runtime PM.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agofbdev: sh_mobile_meram: Validate ICB configuration outside mutex
Laurent Pinchart [Wed, 13 Jul 2011 10:13:47 +0000 (12:13 +0200)]
fbdev: sh_mobile_meram: Validate ICB configuration outside mutex

Validate as much of the requested ICB configuration as possible outside
of the mutex-protected region when registering ICBs.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 years agofbdev: sh_mobile_meram: Replace hardcoded register values with macros
Laurent Pinchart [Wed, 13 Jul 2011 10:13:47 +0000 (12:13 +0200)]
fbdev: sh_mobile_meram: Replace hardcoded register values with macros

Instead of hardcoding register values through the driver, define macros
for individual register bits using the register name and the bit name,
and use the macros.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>