linux-toradex.git/drivers/gpu/drm/tilcdc, branch v4.12

drm: convert drivers to use of_graph_get_remote_node

2017-04-06T21:00:27+00:00

Convert drivers to use the new of_graph_get_remote_node() helper
instead of parsing the endpoint node and then getting the remote device
node. Now drivers can just specify the device node and which
port/endpoint and get back the connected remote device node. The details
of the graph binding are nicely abstracted into the core OF graph code.

This changes some error messages to debug messages (in the graph core).
Graph connections are often "no connects" depending on the particular
board, so we want to avoid spurious messages. Plus the kernel is not a
DT validator.

Signed-off-by: Rob Herring 
Acked-by: Neil Armstrong 
Tested-by: Liviu Dudau 
Tested-by: Eric Anholt 
Tested-by: Jyri Sarha 
Tested by: Archit Taneja 
Signed-off-by: Sean Paul

drm/tilcdc: Drop calls to modeset_lock_crtc

2017-03-25T21:19:27+00:00

Again this is an internal helper, not the official way to lock a crtc.

Cc: Jyri Sarha 
Cc: Tomi Valkeinen 
Reviewed-by: Tomi Valkeinen 
Acked-by: Jyri Sarha 
Signed-off-by: Daniel Vetter 
Link: http://patchwork.freedesktop.org/patch/msgid/20170322215058.8671-9-daniel.vetter@ffwll.ch

BackMerge tag 'v4.11-rc3' into drm-next

2017-03-23T02:05:13+00:00

Linux 4.11-rc3 as requested by Daniel

drm: Create DEFINE_DRM_GEM_CMA_FOPS and roll it out to drivers

2017-03-14T13:38:34+00:00

Less code ftw.

This converts all drivers except the tinydrm helper module. That one
needs more work, since it gets the THIS_MODULE reference from
tinydrm.ko instead of the actual driver module like it should.
Probably needs a similar trick like I used here with generating the
entire struct with a macro.

Cc: Noralf Trønnes 
Reviewed-by: Sean Paul 
Reviewed-by: Liviu Dudau 
Signed-off-by: Daniel Vetter 
Link: http://patchwork.freedesktop.org/patch/msgid/20170308141257.12119-24-daniel.vetter@ffwll.ch

drm/tilcdc: Set framebuffer DMA address to HW only if CRTC is enabled

2017-03-14T12:28:58+00:00

Touching HW while clocks are off is a serious error and for instance
breaks suspend functionality. After this patch tilcdc_crtc_update_fb()
always updates the primary plane's framebuffer pointer, increases fb's
reference count and stores vblank event. tilcdc_crtc_update_fb() only
writes the fb's DMA address to HW if the crtc is enabled, as
tilcdc_crtc_enable() takes care of writing the address on enable.

This patch also refactors the tilcdc_crtc_update_fb() a bit. Number of
subsequent small changes had made it almost unreadable. There should
be no other functional changes but checking the CRTC's enable
state. However, the locking goes a bit differently and some of the
redundant checks have been removed in this new version.

The enable_lock should be enough to protect the access to
tilcdc_crtc->enabled. The irq_lock protects the access to last_vblank
and next_fb. The check for vrefresh and last_vblank being valid is
redundant, as the vrefresh should be always valid if the CRTC is
enabled and now last_vblank should be too, because it is initialized
to current time when CRTC raster is enabled. If for some reason the
values are not correctly initialized the division by zero warning is
quite appropriate.

Signed-off-by: Jyri Sarha 
Reviewed-by: Tomi Valkeinen

drm/tilcdc: Fix hardcoded fail-return value in tilcdc_crtc_create()

2017-03-14T12:28:56+00:00

Fix badly hardcoded return return value under fail-label. All goto
branches to the label set the "ret"-variable accordingly.

Signed-off-by: Jyri Sarha 
Reviewed-by: Gabriel Krisman Bertazi

Merge branch 'drm/next/platform' of git://linuxtv.org/pinchartl/media into drm-misc-next

2017-03-11T10:46:03+00:00

Merge Laurent's drm_platform removal code. Only conflict is with the
drm_pci.h extraction, which allows me to fix up the misplayed
drm_platform_init fumble that 0day and Stephen Rothwell reported.

Signed-off-by: Daniel Vetter

drm: Remove the struct drm_device platformdev field

2017-02-17T13:27:24+00:00

The field contains a pointer to the parent platform device of the DRM
device. As struct drm_device also contains a dev pointer to the struct
device embedded in the platform_device structure, the platformdev field
is redundant. Remove it and use the dev pointer directly.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Daniel Vetter 
Acked-by: Jyri Sarha 
Acked-by: Vincent Abriou  # For sti
Acked-by: Russell King  # For armada
Acked-by: Rob Clark  # For msm
Acked-by: Xinwei Kong

drm: tilcdc: use vblank hooks in struct drm_crtc_funcs

2017-02-09T08:12:01+00:00

The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers.  For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead.

While at it, the 'return' of .disable_vblank is dropped to fix the
following checkpatch warning.

 WARNING: void function return statements are not generally useful

Signed-off-by: Shawn Guo 
Cc: Jyri Sarha 
Acked-by: Jyri Sarha 
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-22-git-send-email-shawnguo@kernel.org

drm: remove drm_vblank_no_hw_counter assignment from driver code

2017-02-07T20:43:55+00:00

Core code already makes drm_driver.get_vblank_counter hook optional by
letting drm_vblank_no_hw_counter be the default implementation for the
function hook.  So the drm_vblank_no_hw_counter assignment in the driver
code becomes redundant and can be removed now.

Signed-off-by: Shawn Guo 
Cc: Alexey Brodkin 
Cc: Liviu Dudau 
Cc: Mali DP Maintainers 
Cc: Russell King 
Cc: Boris Brezillon 
Cc: Inki Dae 
Cc: Stefan Agner 
Cc: Xinliang Liu 
Cc: Daniel Vetter 
Cc: Philipp Zabel 
Cc: CK Hu 
Cc: Neil Armstrong 
Cc: Rob Clark 
Cc: Marek Vasut 
Cc: Ben Skeggs 
Cc: Tomi Valkeinen 
Cc: Laurent Pinchart 
Cc: Mark Yao 
Cc: Benjamin Gaignard 
Cc: Maxime Ripard 
Cc: Jyri Sarha 
Cc: Eric Anholt 
Acked-by: Maxime Ripard 
Acked-by: Boris Brezillon 
Acked-by: Neil Armstrong 
Acked-by: Russell King 
Reviewed-by: Laurent Pinchart 
Acked-by: Alexey Brodkin 
Acked-by: Liviu Dudau 
Signed-off-by: Daniel Vetter 
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-3-git-send-email-shawnguo@kernel.org