Check that the framebuffer pitches are appropriately aligned when
checking planes.
Signed-off-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Different hardware versions have different requirements when it comes to
pitch alignment. Add a function which can be used to check pitch
alignment for a device.
Signed-off-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Mali DP driver does not use drm_irq_{un,}install() function so the
drm->irq_enabled flag does not get set automatically.
drm_wait_vblank() checks the value of the flag among other functions.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
config_valid variable is used to signal the activation of the CVAL
request when the vsync interrupt has fired. malidp_set_and_wait_config_valid()
uses the variable in wait_event_interruptible_timeout without clearing it
first, so the wait is skipped.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Connectors shouldn't be registered until the rest of the whole device
is set up, so that consistent state is presented to userspace.
As such, remove the calls to drm_connector_register() and
drm_connector_unregister() from tda998x, as these are now handled by
drm_dev_(un)register() itself.
To work with this change, the mali-dp and hdlcd bind and unbind
sequences have to be reordered, to ensure that the componentised
encoder/connector is bound before drm_dev_register() registers all
connectors. Similarly, the device must be unregistered before the
component is unbound.
Altogether, this allows other drivers using tda998x to be
de-midlayered, and to have less racy initialisation of their components.
Splitting this commit into three (one per driver) isn't possible without
intermediate breakage, so it is all squashed together here.
Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Brian Starkey <brian.starkey@arm.com>
Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Add support for the new family of Display Processors from ARM Ltd.
This commit adds basic support for Mali DP500, DP550 and DP650
parts, with only the display engine being supported at the moment.
Cc: David Brown <David.Brown@arm.com>
Cc: Brian Starkey <Brian.Starkey@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
As promised, piles of prep work all around:
- drm_atomic_state rework, prep for nonblocking commit helpers
- fence patches from Gustavo and Christian to prep for atomic fences and
some cool work in ttm/amdgpu from Christian
- drm event prep for both nonblocking commit and atomic fences
- Gustavo seems on a crusade against the non-kms-native version of the
vblank functions.
- prep work from Boris to nuke all the silly ->best_encoder
implementations we have (we really only need that for truly dynamic
cases like dvi-i vs dvi-d or dp mst selecting the right transcoder on
intel)
- prep work from Laurent to rework the format handling functions
- and few small things all over
* tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel: (47 commits)
drm/dsi: Implement set tear scanline
drm/fb_cma_helper: Implement fb_mmap callback
drm/qxl: Remove useless drm_fb_get_bpp_depth() call
drm/ast: Remove useless drm_fb_get_bpp_depth() call
drm/atomic: Fix remaining places where !funcs->best_encoder is valid
drm/core: Change declaration for gamma_set.
Documentation: add fence-array to kernel DocBook
drm/shmobile: use drm_crtc_vblank_{get,put}()
drm/radeon: use drm_crtc_vblank_{get,put}()
drm/qxl: use drm_crtc_vblank_{get,put}()
drm/atmel: use drm_crtc_vblank_{get,put}()
drm/armada: use drm_crtc_vblank_{get,put}()
drm/amdgpu: use drm_crtc_vblank_{get,put}()
drm/virtio: use drm_crtc_send_vblank_event()
drm/udl: use drm_crtc_send_vblank_event()
drm/qxl: use drm_crtc_send_vblank_event()
drm/atmel: use drm_crtc_send_vblank_event()
drm/armada: use drm_crtc_send_vblank_event()
drm/doc: Switch to sphinx/rst fixed-width quoting
drm/doc: Drop kerneldoc for static functions in drm_irq.c
...
Harden the plane_check() code to drop attempts at scaling because
that is not supported. Make hdlcd_plane_atomic_update() set the pitch
and line length registers that correctly reflect the plane's values.
And make hdlcd_crtc_mode_set_nofb() a helper function for
hdlcd_crtc_enable() rather than an exposed hook.
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
event_list just reimplemented what drm_crtc_arm_vblank_event does. And
we also need to send out drm events when shutting down a pipe.
With this it's possible to use the new nonblocking commit support in
the helpers.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Because the HDLCD driver acts as a component master it can end
up enabling the runtime PM functionality before the encoders
are initialised. This can cause crashes if the component slave
never probes (missing module) or if the PM operations kick in
before the probe finishes.
Move the enabling of the runtime PM after the component master
has finished collecting the slave components and use the DRM
atomic helpers to suspend and resume the device.
Tested-by: Robin Murphy <Robin.Murphy@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
We accidentally return PTR_ERR(NULL) which is success instead of a
negative error code.
Fixes: 879e40bea6f2 ('drm: ARM HDLCD - get rid of devm_clk_put()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Clock is acquired with devm_clk_get() which already manages
corresponding resource.
I.e. in case of driver removal or failure on installaiton
clock resources will be automatically released and explicit
call of devm_clk_put() is not required.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
The HDLCD controller is a display controller that supports resolutions
up to 4096x4096 pixels. It is present on various development boards
produced by ARM Ltd and emulated by the latest Fast Models from the
company.
Cc: David Airlie <airlied@linux.ie>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
[Kconfig cleanup and !CONFIG_PM fixes]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
