When the panel driver calls omapdss_dsi_display_disable() it is possible
that there are still some unsent packets in the TX fifo.

Add dsi_sync_vc() calls in the beginning of
omapdss_dsi_display_disable() to make sure the TX fifos are empty.

This allows us to remove the msleep(10) hack from panel-taal.c
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Add Color Phase Rotation (CPR) support and sysfs files to enable CPR and
to set the CPR coefficient matrix.

CPR is enabled via manager?/cpr_enable file, and the coefficient matrix
is set via manager?/cpr_coef file. The values in cpr_coef are in the
following order:

RR RG RB GR GG GB BR BG BB
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The overlay_cache_data and manager_cache_data structs include
the elements of omap_overlay_info and omap_overlay_manager_info
structs respectively. Include the structs instead of the individual
elements to reduce code.
Signed-off-by: NNishant Kamat <nskamat@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

OMAP2 doesn't have CPR, PRELOAD nor FIR_COEF_V registers. Add new
feature definitions for those, and check the feature before accessing
those registers.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

OMAP3430 requires an 96MHz clock to VENC's DAC, but no other OMAP needs
it.

Add a new feature, FEAT_VENC_REQUIRES_TV_DAC_CLK, which tells if the
clock is needed on this platform, and use that feature in venc.c to
decide if the clock needs enabling.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

LANEx_ULPS_SIG2 bits are left on after entering ULPS. This doesn't cause
any problems currently, as DSI HW is reset when it is enabled. However,
if the reset is not done, operation fails if the bits are still set.

So reset the bits after entering ULPS to ensure operation even without
HW reset.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

If ULPS exit fails, and the following reset fails also, Taal driver was
left in state where it thinks DSI is enabled while it really isn't,
leading to crash.

This patch checks the return value of taal_panel_reset, and if that
fails, ulps_enabled is left true, causing the driver to retry ulps exit
later.

Also the return value of taal_wake_up is checked at taal_disable, and if
wake up fails, we'll skip the power_off. This could leave the panel into
a not-quite-valid state, but there's nothing we can do about it in that
situation.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Remove the whole update_mode stuff from omapdss driver. If automatic
update for manual update displays is needed, it's better implemented in
higher layers.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Implement auto-update mode for manual-update displays. omapfb driver
uses a delayed work to update the display with a constant rate.

The update mode can be changed via OMAPFB_SET_UPDATE_MODE ioctl, which
previously called omapdss but is now handled inside omapfb, and a new
sysfs file, "update_mode".

The update interval is by default 20 times per second, but can be
changed via "auto_update_freq" module parameter. There is also a new
module parameter "auto_update", which will make omapfb start manual
update displays in auto-update mode.

This auto-update mode can be used for testing if the userspace does not
support manual update displays properly. However, it is a very
inefficient solution, and should be considered more as a hack for
testing than something that could be used as a long term solution.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Create a new struct omapfb_display_data to contain omapfb's private
per-display data. Move the bpp override there.

This struct will be used to hold auto/manual update state of a display
in the following patches.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Using empty macros for performance measurement functions when DSS DEBUG
is not enabled causes an unused variable warning.

Change the empty macros to empty inline functions to remove the
warning.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

omapdss.h included platform_device.h and atomic.h, neither of which is
needed by omapdss.h. Remove those includes from omapdss.h, and fix the
affected .c files which did not include platform_device.h even though
they should.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Commit 13e12d14 ("vfs: reorganize 'struct inode' layout a bit")
moved things around a bit changed i_state to be unsigned int instead of
unsigned long.  That was to help structure layout for the 64-bit case,
and shrink 'struct inode' a bit (admittedly that only happened when
spinlock debugging was on and i_flags didn't pack with i_lock).

However, Meelis Roos reports that this results in unaligned exceptions
on sprc, and it turns out that the bit-locking primitives that we use
for the I_NEW bit want to use the bitops.  Which want 'unsigned long',
not 'unsigned int'.

We really should fix the bit locking code to not have that kind of
requirement, but that's a much bigger change.  So for now, revert that
field back to 'unsigned long' (but keep the other re-ordering changes
from the commit that caused this).

Andi points out that we have played games with this in 'struct page', so
it's solvable with other hacks too, but since right now the struct inode
size advantage only happens with some rare config options, it's not
worth fighting.

It _would_ be worth fixing the bitlocking code, though.  Especially
since there is no type safety in the bitlocking code (this never caused
any warnings, and worked fine on x86-64, because the bitlocks take a
'void *' and x86-64 doesn't care that deeply about alignment).  So it's
currently a very easy problem to trigger by mistake and never notice.
Reported-by: NMeelis Roos <mroos@linux.ee>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms/r6xx+: voltage fixes
  drm/nouveau: drop leftover debugging
  drm/radeon: avoid warnings from r600/eg irq handlers on powered off card.
  drm/radeon/kms: add missing param for dce3.2 DP transmitter setup
  drm/radeon/kms/atom: fix duallink on some early DCE3.2 cards
  drm/nouveau: fix assumption that semaphore dmaobj is valid in x-chan sync
  drm/nv50/disp: fix gamma with page flipping overlay turned on
  drm/nouveau/pm: Prevent overflow in nouveau_perf_init()
  drm/nouveau: fix big-endian switch

* 'msm-fix' of git://codeaurora.org/quic/kernel/davidb/linux-msm:
  msm: timer: Fix DGT rate on 8960 and 8660
  msm: timer: compensate for timer shift in msm_read_timer_count
  msm: timer: Fix SMP build error

* 'for-2.6.40' of git://linux-nfs.org/~bfields/linux:
  nfsd4: fix break_lease flags on nfsd open
  nfsd: link returns nfserr_delay when breaking lease
  nfsd: v4 support requires CRYPTO
  nfsd: fix dependency of nfsd on auth_rpcgss

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (40 commits)
  pxa168_eth: fix race in transmit path.
  ipv4, ping: Remove duplicate icmp.h include
  netxen: fix race in skb->len access
  sgi-xp: fix a use after free
  hp100: fix an skb->len race
  netpoll: copy dev name of slaves to struct netpoll
  ipv4: fix multicast losses
  r8169: fix static initializers.
  inet_diag: fix inet_diag_bc_audit()
  gigaset: call module_put before restart of if_open()
  farsync: add module_put to error path in fst_open()
  net: rfs: enable RFS before first data packet is received
  fs_enet: fix freescale FCC ethernet dp buffer alignment
  netdev: bfin_mac: fix memory leak when freeing dma descriptors
  vlan: don't call ndo_vlan_rx_register on hardware that doesn't have vlan support
  caif: Bugfix - XOFF removed channel from caif-mux
  tun: teach the tun/tap driver to support netpoll
  dp83640: drop PHY status frames in the driver.
  dp83640: fix phy status frame event parsing
  phylib: Allow BCM63XX PHY to be selected only on BCM63XX.
  ...

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  devcgroup_inode_permission: take "is it a device node" checks to inlined wrapper
  fix comment in generic_permission()
  kill obsolete comment for follow_down()
  proc_sys_permission() is OK in RCU mode
  reiserfs_permission() doesn't need to bail out in RCU mode
  proc_fd_permission() is doesn't need to bail out in RCU mode
  nilfs2_permission() doesn't need to bail out in RCU mode
  logfs doesn't need ->permission() at all
  coda_ioctl_permission() is safe in RCU mode
  cifs_permission() doesn't need to bail out in RCU mode
  bad_inode_permission() is safe from RCU mode
  ubifs: dereferencing an ERR_PTR in ubifs_mount()

0xff01 is not an actual voltage value, but a flag
for the driver.  If the power state as that value,
skip setting the voltage.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

The DGT runs at 27 MHz divided by 4 on 8660 and 8960.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NDavid Brown <davidb@codeaurora.org>

Because the socket buffer is freed in the completion interrupt, it is not
safe to access it after submitting it to the hardware.

Cc: stable@kernel.org
Cc: Sachin Sanap <ssanap@marvell.com>
Cc: Zhangfei Gao <zgao6@marvell.com>
Cc: Philip Rakity <prakity@marvell.com>
Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Acked-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove the duplicate inclusion of net/icmp.h from net/ipv4/ping.c
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As soon as skb is given to hardware, TX completion can free skb under
us.
Therefore, we should update dev stats before kicking the device.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
CC: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

* 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/setup: Fix for incorrect xen_extra_mem_start.
  xen: When calling power_off, don't call the halt function.
  xen: Fix compile warning when CONFIG_SMP is not defined.
  xen: support CONFIG_MAXSMP
  xen: partially revert "xen: set max_pfn_mapped to the last pfn mapped"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: sh_keysc - 8x8 MODE_6 fix
  Input: omap-keypad - add missing input_sync()
  Input: evdev - try to wake up readers only if we have full packet
  Input: properly assign return value of clamp() macro.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: avoid delayed metadata items during commits
  btrfs: fix uninitialized return value
  btrfs: fix wrong reservation when doing delayed inode operations
  btrfs: Remove unused sysfs code
  btrfs: fix dereference of ERR_PTR value
  Btrfs: fix relocation races
  Btrfs: set no_trans_join after trying to expand the transaction
  Btrfs: protect the pending_snapshots list with trans_lock
  Btrfs: fix path leakage on subvol deletion
  Btrfs: drop the delalloc_bytes check in shrink_delalloc
  Btrfs: check the return value from set_anon_super

* 'kvm-updates/3.0' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: Fix register corruption in pvclock_scale_delta
  KVM: MMU: fix opposite condition in mapping_level_dirty_bitmap
  KVM: VMX: do not overwrite uptodate vcpu->arch.cr3 on KVM_SET_SREGS
  KVM: MMU: Fix build warnings in walk_addr_generic()

inode_permission() calls devcgroup_inode_permission() and almost all such
calls are _not_ for device nodes; let's at least keep the common path
straight...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

CAP_DAC_OVERRIDE is enough for MAY_EXEC on directory, even if
no exec bits are set.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

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

nothing blocking there, since all instances of sysctl
->permissions() method are non-blocking - both of them,
that is.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

nothing blocking other than generic_permission() (and
check_acl callback does bail out in RCU mode).
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

nothing blocking except generic_permission()
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Nothing blocking except for generic_permission().  Which will DTRT.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

... and never did, what with its ->permission() being what we do by default
when ->permission is NULL...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

return (mask & MAY_EXEC) ? -EACCES : 0; is non-blocking...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

nothing potentially blocking except generic_permission(), which
will DTRT
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

return -EIO; is *not* a blocking operation, thank you very much.
Nick, what the hell have you been smoking?
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

d251ed27 "ubifs: fix sget races" left out the goto from this
error path so the static checkers complain that we're dereferencing
"sb" when it's an ERR_PTR.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>