linux-stable.git/drivers/gpu/drm/ast, branch v4.1.41

drm/ast: Call open_key before enable_mmio in POST code

2017-05-17T19:07:00+00:00

[ Upstream commit 9bb92f51558f2ef5f56c257bdcea0588f31d857e ]

open_key enables access the registers used by enable_mmio

Signed-off-by: Y.C. Chen 
Signed-off-by: Benjamin Herrenschmidt 
Acked-by: Joel Stanley 
Tested-by: Y.C. Chen 
Cc: 
Signed-off-by: Dave Airlie 
Signed-off-by: Sasha Levin

drm/ast: Fix test for VGA enabled

2017-05-17T19:06:59+00:00

[ Upstream commit 905f21a49d388de3e99438235f3301cabf0c0ef4 ]

The test to see if VGA was already enabled is doing an unnecessary
second test from a register that may or may not have been initialized
to a valid value. Remove it.

Signed-off-by: Y.C. Chen 
Signed-off-by: Benjamin Herrenschmidt 
Cc: 
Acked-by: Joel Stanley 
Tested-by: Y.C. Chen 
Signed-off-by: Dave Airlie 
Signed-off-by: Sasha Levin

drm/ast: Fix AST2400 POST failure without BMC FW or VBIOS

2017-05-17T19:06:59+00:00

[ Upstream commit 3856081eede297b617560b85e948cfb00bb395ec ]

The current POST code for the AST2300/2400 family doesn't work properly
if the chip hasn't been initialized previously by either the BMC own FW
or the VBIOS. This fixes it.

Signed-off-by: Y.C. Chen 
Signed-off-by: Benjamin Herrenschmidt 
Tested-by: Y.C. Chen 
Acked-by: Joel Stanley 
Cc: 
Signed-off-by: Dave Airlie 
Signed-off-by: Sasha Levin

drivers/gpu/drm/ast: Fix infinite loop if read fails

2017-01-13T01:56:58+00:00

[ Upstream commit 298360af3dab45659810fdc51aba0c9f4097e4f6 ]

ast_get_dram_info() configures a window in order to access BMC memory.
A BMC register can be configured to disallow this, and if so, causes
an infinite loop in the ast driver which renders the system unusable.

Fix this by erroring out if an error is detected.  On powerpc systems with
EEH, this leads to the device being fenced and the system continuing to
operate.

Cc:  # 3.10+
Signed-off-by: Russell Currey 
Reviewed-by: Joel Stanley 
Signed-off-by: Daniel Vetter 
Link: http://patchwork.freedesktop.org/patch/msgid/20161215051241.20815-1-ruscur@russell.cc
Signed-off-by: Sasha Levin

drm/ast: Fix incorrect register check for DRAM width

2016-03-09T18:15:23+00:00

[ Upstream commit 2d02b8bdba322b527c5f5168ce1ca10c2d982a78 ]

During DRAM initialization on certain ASpeed devices, an incorrect
bit (bit 10) was checked in the "SDRAM Bus Width Status" register
to determine DRAM width.

Query bit 6 instead in accordance with the Aspeed AST2050 datasheet v1.05.

Signed-off-by: Timothy Pearson 
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie 
Signed-off-by: Sasha Levin

drm/fb-helper: Propagate errors from initial config failure

2015-01-21T13:57:03+00:00

Make drm_fb_helper_initial_config() return an int rather than a bool so
that the error can be properly propagated. While at it, update drivers
to propagate errors further rather than just ignore them.

v2:
- cirrus: No cleanup is required, the top-level cirrus_driver_load()
  will do it as part of cirrus_driver_unload() in its cleanup path.
  Reported-by: Fengguang Wu 

Cc: David Airlie 
Cc: Daniel Vetter 
Cc: Patrik Jakobsson 
Cc: Rob Clark 
Cc: Tomi Valkeinen 
Cc: Alex Deucher 
Cc: Christian König 
Cc: Ben Skeggs 
Signed-off-by: Thierry Reding 
Reviewed-by: Alex Deucher 
Reviewed-by: Patrik Jakobsson 
Reviewed-by: Christian König 
[danvet: Squash in simplification patch from kbuild.]
Signed-off-by: Daniel Vetter

drm: Move drm_crtc_init from drm_crtc.h to drm_plane_helper.h

2014-11-04T23:14:55+00:00

Just a bit of OCD cleanup on headers - this function isn't the core
interface any more but just a helper for drivers who haven't yet
transitioned to universal planes. Put the declaration at the right
spot and sprinkle necessary #includes over all drivers.

Maybe this helps to encourage driver maintainers to do the switch.

v2: Fix #include ordering for tegra, reported by 0-day builder.

v3: Include required headers, reported by Thierry.

Cc: Matt Roper 
Cc: Thierry Reding 
Reviewed-by: Matt Roper 
Reviewed-by: Sean Paul 
Signed-off-by: Daniel Vetter

drm/ast: Fix HW cursor image

2014-10-07T23:05:29+00:00

The translation from the X driver to the KMS one typo'ed a couple
of array indices, causing the HW cursor to look weird (blocky with
leaking edge colors). This fixes it.

Signed-off-by: Benjamin Herrenschmidt 
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie

Merge branch 'for-airlied-next' of git://people.freedesktop.org/~mlankhorst/linux into drm-next

2014-10-01T09:27:38+00:00

fixups for nouveau and fencing

* 'for-airlied-next' of git://people.freedesktop.org/~mlankhorst/linux:
  drm/nouveau: export reservation_object from dmabuf to ttm
  drm/ttm: add reservation_object as argument to ttm_bo_init
  drm: Pass dma-buf as argument to gem_prime_import_sg_table
  drm/nouveau: assign fence_chan->name correctly
  drm/nouveau: specify if interruptible wait is desired in nouveau_fence_sync
  drm/nouveau: bump driver patchlevel to 1.2.1

drm/ttm: add reservation_object as argument to ttm_bo_init

2014-09-30T12:04:00+00:00

This allows importing reservation objects from dma-bufs.

Signed-off-by: Maarten Lankhorst