Commit Graph

20 Commits

Author SHA1 Message Date
Russell King
c39b06951f DRM: armada: fix corruption while loading cursors
Loading cursors to the LCD controller's SRAM can be corrupted when the
configured pixel clock is relatively slow.  This seems to be caused
when we write back-to-back to the SRAM registers.

There doesn't appear to be any status register we can read to check
when an access has completed.

Inserting a dummy read between the writes appears to fix the problem.

Cc: <stable@vger.kernel.org> # 3.13
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-04-08 10:51:03 +10:00
Matt Roper
f4510a2752 drm: Replace crtc fb with primary plane fb (v3)
Now that CRTC's have a primary plane, there's no need to track the
framebuffer in the CRTC.  Replace all references to the CRTC fb with the
primary plane's fb.

This patch was generated by the Coccinelle semantic patching tool using
the following rules:

        @@ struct drm_crtc C; @@
        -   (C).fb
        +   C.primary->fb

        @@ struct drm_crtc *C; @@
        -   (C)->fb
        +   C->primary->fb

v3: Generate patch via coccinelle.  Actual removal of crtc->fb has been
    moved to a subsequent patch.

v2: Fixup several lingering crtc->fb instances that were missed in the
    first patch iteration.  [Rob Clark]

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-04-01 20:18:28 -04:00
Dave Airlie
ae693400bd Merge branch 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-fixes
fix for kfifo api change.
* 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox:
  DRM: armada: fix use of kfifo_put()
2014-03-07 09:04:32 +10:00
Russell King
d13c46c67e DRM: armada: fix use of kfifo_put()
The kfifo_put() API changed in 498d319bb5 (kfifo API type safety)
which now results in the wrong pointer being added to the kfifo ring,
which then causes an oops.  Fix this.

Cc: <stable@vger.kernel.org> # 3.13
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-03-03 17:47:22 +00:00
Dave Airlie
a5bd4f8ab0 Merge branch 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-next
Just one-liner which corrects a select statement for DRM_KMS_FB_HELPER
which looks like it was missed in the initial merge.  Based on 3.13.

* 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox: (55 commits)
  DRM: armada: fix missing DRM_KMS_FB_HELPER select
2014-01-29 09:38:32 +10:00
Russell King
bed86f15bd DRM: armada: fix missing DRM_KMS_FB_HELPER select
Commit 92b6f89f6b8f (drm: Add separate Kconfig option for fbdev helpers)
happened in parallel with the inclusion of Armada DRM into mainline,
and so missed this update.  Add the necessary select statement to avoid
build errors.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-27 23:47:14 +00:00
Dave Airlie
cfd72a4c20 Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
drm-intel-next-2014-01-10:
- final bits for runtime D3 on Haswell from Paul (now enabled fully)
- parse the backlight modulation freq information in the VBT from Jani
  (but not yet used)
- more watermark improvements from Ville for ilk-ivb and bdw
- bugfixes for fastboot from Jesse
- watermark fix for i830M (but not yet everything)
- vlv vga hotplug w/a (Imre)
- piles of other small improvements, cleanups and fixes all over

Note that the pull request includes a backmerge of the last drm-fixes
pulled into Linus' tree - things where getting a bit too messy. So the
shortlog also contains a bunch of patches from Linus tree. Please yell if
you want me to frob it for you a bit.

* 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel: (609 commits)
  drm/i915/bdw: make sure south port interrupts are enabled properly v2
  drm/i915: Include more information in disabled hotplug interrupt warning
  drm/i915: Only complain about a rogue hotplug IRQ after disabling
  drm/i915: Only WARN about a stuck hotplug irq ONCE
  drm/i915: s/hotplugt_status_gen4/hotplug_status_g4x/
2014-01-20 10:21:54 +10:00
Daniel Vetter
50fb3c3b2e drm/armada: directly call drm_put_dev in ->remove
Again no apparent user of the driver data field.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:05:48 +10:00
Dave Airlie
5c015db7d9 Merge branch 'drm-tda998x-3.12-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-fixes
These four patches fix a few issues discovered since the initial merge,
which have been reviewed by Rob Clark and Thierry Reding.

* 'drm-tda998x-3.12-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox:
  DRM: Armada: prime refcounting bug fix
  DRM: Armada: fix printing of phys_addr_t/dma_addr_t
  DRM: Armada: destroy framebuffer after helper
  DRM: Armada: implement lastclose() for fbhelper
2013-12-12 10:40:19 +10:00
Russell King
5cd5268806 DRM: Armada: prime refcounting bug fix
Commit 011c2282c7 changed the way refcounting on imported dma_bufs
works, and this hadn't been spotted while forward-porting Armada.
Reflect the changes in that commit into the Armada driver.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-10 20:25:18 +00:00
Russell King
7513e09596 DRM: Armada: fix printing of phys_addr_t/dma_addr_t
These can be 64-bit quantities, so fix them up appropriately.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-10 20:25:15 +00:00
Russell King
077acbab67 DRM: Armada: destroy framebuffer after helper
Destroy the framebuffer only after the helper, since the helper may
still be referencing the framebufer at this point.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-10 20:25:12 +00:00
Russell King
2f5ae4901a DRM: Armada: implement lastclose() for fbhelper
Call drm_fb_helper_restore_fbdev_mode() upon last close so that in the
event of the X server crashing, we have some kind of mode restored.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-10 20:24:02 +00:00
Duan Jiong
a276d6ce8a DRM: Armada: convert to use simple_open()
This removes an open coded simple_open() function and replaces file
operations references to the function with simple_open() instead.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-11-06 12:02:36 +10:00
Dave Airlie
9e3396ae42 Merge branch 'drm-tda998x-3.12-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-next
Fix build on non-ARM
* 'drm-tda998x-3.12-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox:
  DRM: Armada: depend on ARM
2013-10-23 10:09:56 +01:00
Russell King
796c8e1c34 DRM: Armada: depend on ARM
Armada DRM uses relaxed accessors which are not available on other
platforms.  Limit it to just ARM.

Acked-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-10-22 14:34:00 +01:00
Dave Airlie
5e4e3ba997 Merge branch 'drm-tda998x-3.12' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-next
This adds support for the Armada 510 display subsystem found on the
Marvell Dove devices.  This IP is re-used across several different Marvell
SoCs with various tweaks, and this driver has been structured to allow
the other IPs to re-use the bulk of this code; further work in this area
is expected from interested parties.

This has been extensively tested on the SolidRun Cubox platform and
appears to work well there.

[airlied: update for api changes merged previous to this]
2013-10-22 09:50:08 +01:00
Russell King
585b691e21 DRM: Armada: add support for drm tda19988 driver
Add support for TDA998x output via the slave driver in the kernel.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-10-18 16:00:33 +01:00
Russell King
662af0d822 DRM: Armada: Add support for ARGB 32x64 or 64x32 hardware cursors
This patch adds ARGB hardware cursor support to the DRM driver for the
Marvell Armada SoCs.  ARGB cursors are supported at either 32x64 or
64x32 resolutions.

Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-10-18 15:53:30 +01:00
Russell King
96f60e37dc DRM: Armada: Add Armada DRM driver
This patch adds support for the pair of LCD controllers on the Marvell
Armada 510 SoCs.  This driver supports:
- multiple contiguous scanout buffers for video and graphics
- shm backed cacheable buffer objects for X pixmaps for Vivante GPU
  acceleration
- dual lcd0 and lcd1 crt operation
- video overlay on each LCD crt via DRM planes
- page flipping of the main scanout buffers
- DRM prime for buffer export/import

This driver is trivial to extend to other Armada SoCs.

Included in this commit is the core driver with no output support; output
support is platform and encoder driver dependent.

Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-10-12 10:13:40 +01:00