printk: Fix rq->lock vs logbuf_lock unlock lock inversion

commit 07354eb1a74d1 ("locking printk: Annotate logbuf_lock as raw")
reintroduced a lock inversion problem which was fixed in commit
0b5e1c5255 ("printk: Release console_sem after logbuf_lock"). This
happened probably when fixing up patch rejects.

Restore the ordering and unlock logbuf_lock before releasing
console_sem.

Signed-off-by: ybu <ybu@qti.qualcomm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/E807E903FE6CBE4D95E420FBFCC273B827413C@nasanexd01h.na.qualcomm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
ide: tx4938ide: use module_platform_driver_probe()

This patch uses module_platform_driver_probe() macro which makes
the code smaller and simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ide: tx4939ide: use module_platform_driver_probe()

This patch uses module_platform_driver_probe() macro which makes
the code smaller and simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ide: gayle: use module_platform_driver_probe()

This patch uses module_platform_driver_probe() macro which makes
the code smaller and simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drm/i915: don't enable the plane too early in i9xx_crtc_mode_set

This is horrible lore and we should be able to get rid of it now
that the lvds/pfit handling code actually does the right thing.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: drop redundant vblank waits

Just blows through 50ms for naught, since the pipe is off.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: add pipe asserts for the crtc enable sequence

The i9xx modeset sequence is currently pretty fishy, so tight it all
up with some good assert-sprinkling.

We already have good coverage on the disable side, but the enable side
is spotty (since until recently it was wrong).

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: add i9xx pfit pipe asserts

We can only enable the pfit if the pipe is disabled. Ensure that this
is obeyed with a neat assert.

Also check whether the pfit is off before enabling it - if not we've
lost track of things somewhere since the pfit is only ever used by the
lvds output.

v2: Fix spell fail in the commit message pointed out by Ville&Jani.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: move debug output back to the right place

When adding the pipe config computation step I've accidentally moved
this a bit away. Which momentarily confused me since the pipe config
step rejected some modesetting operations I expected and so left me
looking in vain for that debug output.

v2: Move the debug output into the right function to prevent this from
happening again.

v3: Make it compile (Ville). Also reorder the patch so that the two
bugfixes are first.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Use pipe_name() and port_name() where appropriate

Get rid of the few remaining open coded copies of
pipe_name() and port_name().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Use port_name() in PCH port audio power change message

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Print plane, pipe, port names as alphabetical insted of decimal

Alway use the alphabetical names in debug/error messages for planes,
pipes and ports, instead of using decimal numbers occasionally.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Use alphabetical names for transcoders too

Print the alphabetical name for transcoders. The code already used the
pipe_name() macro for transcoders, so I did the same. But we do have the
(unused) transcoder_name() macro which could be used instead.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Use alphabetical names for sprites

Add sprite_name() macro which should be used with the kind of sprites
that are fixed to pipes (gen4.5+).

Also use dev_priv->num_plane to calculate the sprite index insted
assuming two sprites per pipe. This should make it print the right
name.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: VLV GPU frequency to opcode functions

When requesting frequency changes or querying status from the Punit, we
need to use an opcode that corresponds to the frequency, taking into
account the memory frequency.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: turbo & RC6 support for VLV v7

Uses slightly different interfaces than other platforms.

v2: track actual set freq, not requested (Rohit)
    fix debug prints in init code (Jesse)
v3: don't write sleep reg (Jesse)
    re-add RC6 wake limit write (Ben)
    fixup thresholds to match other platforms (Ben)
    clean up mem freq calculation (Ben)
    clean up debug prints (Ben)
v4: move defines from punit patch (Ville)
v5: remove writes to nonexistent regs (Jesse)
    put RP and RC regs together (Jesse)
    fix RC6 enable (Jesse)
v6: use correct fuse reads from NC (Jesse)
    split out min/max funcs for use in sysfs (Jesse)
    add debugfs & sysfs freq controls (Jesse)
v7: update with Ben's hw_max changes (Jesse)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net> (v6)
[danvet: Follow checkpatch sugggestion to use min_t to avoid casting
fun.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: fix VLV limits

Magic updates.

v2: use 64 bit types and math (Ville)

v3: Trim out all the m/n/p calculation changes since they are still
under discussion. Instead squash in a fixup for hdmi limits which
slipped into a different patch.

Signed-off-by: Pallavi G <pallavi.g@intel.com>
Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Yogesh M <yogesh.mohan.marimuthu@intel.com>
Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> (v2)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: magic VLV PLL registers in the dpio sideband

Stolen from a patch with the below impressive sob-section.

Signed-off-by: Pallavi G <pallavi.g@intel.com>
Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Drop everything but the header #defines.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915/dp: program VSwing and Preemphasis control settings on VLV v2

Program few Tx buffer Swing control settings through DPIO.

v2: fix up codingstyle (Daniel)
    call from set_signal_levels (Ville, Daniel)
    use proper port numbers (Jesse)

Signed-off-by: Pallavi G <pallavi.g@intel.com>
Signed-off-by: Yogesh M <yogesh.mohan.marimuthu@intel.com>
Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> (v2 changes)
[danvet: Reorder if-ladder to avoid two IS_VLV checks.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: drop init_dpio, shouldn't be needed

This is a reset feature we don't actually need.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Make it compile.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>