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path: root/drivers/gpu/drm/omapdrm/dss/omapdss.h
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* drm/omap: dss: Move src and dst check and set to connection handlersLaurent Pinchart2018-09-031-5/+3
| | | | | | | | | | The encoders duplicate the same omap_dss_device src and dst fields set and checks in their connect and disconnect handlers. Move the code to the connect and disconnect wrappers. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Add functions to connect and disconnect devicesLaurent Pinchart2018-09-031-0/+4
| | | | | | | | | | | | The omap_dss_device objects model display components and are connected at runtime to create display pipelines. The connect and disconnect operations implemented by each component contain lots of duplicate code. As a first step towards fixing this, create new functions to wrap the direct calls to those operations and use them. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Move common device operations to common structureLaurent Pinchart2018-09-031-88/+21
| | | | | | | | | | | | The various types of omapdss_*_ops structures define multiple operations that are not specific to a bus type. To simplify the code and remove dependencies on specific bus types move those operations to a common structure. Operations that are specific to a bus type are kept in the specialized ops structures. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Allow looking up any device by portLaurent Pinchart2018-09-031-2/+2
| | | | | | | | | | | | The omap_dss_find_output_by_port() function looks up an omap_dss_device by port from the list of devices registered as outputs. In preparation for looking up sinks in addition to sources, allow the function to look up any registered device. Rename it to omap_dss_find_device_by_port() to match its new purpose. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Rework output lookup by port nodeLaurent Pinchart2018-09-031-4/+2
| | | | | | | | | | | | | | | | | The omap_dss_find_output_by_port_node() function defined in output.c looks up an output from its port node. To do so it needs to call helper functions from dss-of.c to lookup the port parent and the port number. As omap_dss_find_output_by_port_node() is only called by omapdss_of_find_source_for_first_ep() from dss-of.c this goes back and forth between the to source files and isn't very clear. Simplify the code by passing both the parent and the port number to omap_dss_find_output_by_port_node() instead of the port node, and rename the function to omap_dss_find_output_by_port(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Create and use omapdss_device_is_registered()Laurent Pinchart2018-09-031-3/+0
| | | | | | | | | | | The omapdss_component_is_loaded() function test whether a component is loaded by checking whether it is present in the displays list or the outputs list. Simplify the implementation by checking for the component in the global omap_dss_device list. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Create global list of all omap_dss_device instancesLaurent Pinchart2018-09-031-0/+4
| | | | | | | | | | | The omap_dss_device instances are stored in two separate lists, depending on whether they are panels or outputs. Create a third list that stores all omap_dss_device instances to allow generic code to operate on all instances. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Rename omap_dss_device list field to output_listLaurent Pinchart2018-09-031-1/+1
| | | | | | | | For coherency with the panel_list field, rename list to output_list. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Remove omap_dss_device panel fieldsLaurent Pinchart2018-09-031-5/+0
| | | | | | | | | The omap_dss_device panel.dsi_pix_fmt and panel.dsi_mode fields are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: displays: Remove videomode from omap_dss_device structureLaurent Pinchart2018-09-031-2/+0
| | | | | | | | | | | The omap_dss_device structure stores a videomode. All the connector and panel drivers that use omap_dss_device also store the videomode in their own panel_drv_data structures. There's no need to duplicate, remove the videomode field from omap_dss_device. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Constify omap_dss_driver operations structureLaurent Pinchart2018-09-031-1/+1
| | | | | | | | | The structure contains function pointers that don't need to be modified. Make all its instances const to improve security. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Remove DSS encoders get_timings operationLaurent Pinchart2018-09-031-10/+0
| | | | | | | | | | The get_timings operation from DSS encoders (not to be confused with the identically named operation in omap_dss_driver) is never called. Remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Remove omapdss_atv_ops get_wss and set_wss operationsLaurent Pinchart2018-09-031-6/+0
| | | | | | | | | | The operations are never used, remove them. If the need to set wide screen signaling data arises later, it should be implemented by extending the DRM bridge API. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Remove display ordering from dss/display.cPeter Ujfalusi2018-09-031-2/+0
| | | | | | | | | | | | | | | | | As ordering of the dss_devices based on DT aliases is now implemented in omap_drm.c, there is no need to do the ordering in dss/display.c anymore. At the same time remove the alias member of the omap_dss_device struct since it is no longer needed. The only place it was used is in the omapdss_register_display() function. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: Do dss_device (display) ordering in omap_drv.cPeter Ujfalusi2018-09-031-0/+1
| | | | | | | | | | | | | | Sort the dssdev array based on DT aliases. With this change we can remove the panel ordering from dss/display.c and have all sorting related to dssdevs in one place. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: add writeback funcs to dispc_opsTomi Valkeinen2018-03-011-0/+20
| | | | | | | | Add writeback specific dispc functions to dispc_ops so that omapdrm can use them. Also move 'enum dss_writeback_channel' to the public omapdss.h for omapdrm. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: remove leftover enumsTomi Valkeinen2018-03-011-15/+0
| | | | | | | A few enums are not used anywhere, so remove them. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm: omapdrm: dispc: Pass DISPC pointer to dispc_ops operationsLaurent Pinchart2018-03-011-39/+56
| | | | | | | | | | | | | This removes the need to access the global DISPC private data in those functions (both for the current accesses and the future ones that will be introduced when allocating the DISPC private data dynamically). In order to allow the omapdrm side to call the dispc_ops with a DISPC pointer, we also introduce a new function dss_get_dispc() to retrieve the DISPC corresponding to the DSS. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
* drm: omapdrm: dss: Store dispc ops in dss_device structureLaurent Pinchart2018-03-011-2/+1
| | | | | | | | Remove the global dispc ops variable by storing it in the dss_device structure. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
* drm: omapdrm: dss: Store DSS device pointer in the omapdrm private dataLaurent Pinchart2018-03-011-3/+7
| | | | | | | | | | | | | | | The dss_device is the top-level component in the omapdss driver. Give the omapdrm driver access to the dss_device pointer in order to obtain pointers to all other components from it. This requires a new global variable in the omapdss driver that will be removed when merging the omapdrm and omapdss drivers, but will already allow removal of several other global variables. As this partly duplicates the omapdss_is_initialized() API, reimplement it as an inline function wrapping omapdss_get_dss(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
* drm: omapdrm: dss: Pass omap_drm_private pointer to dss_mgr_opsLaurent Pinchart2018-03-011-15/+26
| | | | | | | | | | | | | The dss_mgr_ops operations implemented by the omapdrm side have to look up the omap_crtc objects from global variables as they are only passed a channel number. In order to remove global variables in the omapdrm driver pass the omap_drm_private pointer to the dss_mgr_ops. This requires storing a pointer to the omap_drm_private in a global variable on the DSS side as a temporary measure until the omapdrm and omapdss drivers get merged. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
* drm: omapdrm: dss: Pass omap_dss_device pointer to dss_mgr_*() functionsLaurent Pinchart2018-03-011-11/+11
| | | | | | | | | | | | The dss_mgr_*() functions take a channel argument to identify the channel they operate on. This prevents the functions from accessing driver data structures without resorting to global variables. In an effort to remove global variables, pass the omap_dss_device pointer associated with the channel instead. This will be used to look up the omap_drm_private data structure to pass to the dss_mgr_ops. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
* drm: omapdrm: dss: Make omapdss_default_get_timings staticLaurent Pinchart2018-03-011-3/+0
| | | | | | | | The function isn't used outside of its compilation unit, make it static. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm: omapdrm: Use unsigned int typeLaurent Pinchart2018-03-011-2/+2
| | | | | | | | | | The kernel favours 'unsigned int' over plain 'unsigned'. Replace all occurences of the latter by the former. This avoid lots of checkpatch complaints in patches that touch lines where a plain 'unsigned' is used. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm: omapdrm: Remove filename from header and fix copyright tagAndrew F. Davis2017-12-191-1/+1
| | | | | | | | | | Having the filename in the header serves little purpose and is often wrong after renames as it is here in several places, just drop it from all omapdrm files. While we are here unify the copyright tags to the TI recommended style. Signed-off-by: Andrew F. Davis <afd@ti.com>
* drm: omapdrm: Remove unused omap_dss_find_device() functionLaurent Pinchart2017-12-191-3/+0
| | | | | | | | The omap_dss_find_device() function is unused. Remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: add support for physical size hints from display driversSebastian Reichel2017-12-191-0/+2
| | | | | | | | | While physical size information is automatically parsed for EDID based displays, we need to provide it manually for displays providing one fixed mode. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: remove unused function definesSebastian Reichel2017-12-191-3/+0
| | | | | | | | Remove driver (un)register API defines. They do not even exist anymore. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: dss: Add support for reporting memory bandwidth limitationPeter Ujfalusi2017-12-191-0/+2
| | | | | | | | The get_memory_bandwidth_limit() in dispc_ops can be used to query the memory bandwidth limit of dispc by upper layers. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* omapdrm: omapdss_hdmi_ops: add lost_hotplug opHans Verkuil2017-10-121-0/+1
| | | | | | | | | | | The CEC framework needs to know when the hotplug detect signal disappears, since that means the CEC physical address has to be invalidated (i.e. set to f.f.f.f). Add a lost_hotplug op that is called when the HPD signal goes away. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm: omapdrm: Remove the omapdss driverLaurent Pinchart2017-08-161-1/+0
| | | | | | | | | The omapdss driver (not to be confused with the omapdss_dss driver) is now a dummy driver with empty probe and remove functions. Remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm: omapdrm: venc: Don't export omap_dss_pal_vm and omap_dss_ntsc_vmLaurent Pinchart2017-08-151-7/+0
| | | | | | | | The two variables are never used outside of their compilation unit, make them static. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: Support for HDMI hot plug detectionPeter Ujfalusi2017-08-151-0/+17
| | | | | | | | | | The HPD signal can be used for detecting HDMI cable plug and unplug event without the need for polling the status of the line. This will speed up detecting such event because we do not need to wait for the next poll event to notice the state change. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: DRM_MODE_REFLECT_* instead of mirror booleanTomi Valkeinen2017-06-021-2/+0
| | | | | | | | Change dispc driver to use the DRM_MODE_REFLECT flags instead of a mirror boolean. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: use DRM_MODE_ROTATE_* instead of OMAP_DSS_ROT_*Tomi Valkeinen2017-06-021-8/+0
| | | | | | | | | | | | | At the moment the dispc driver uses a custom enum for rotation. Change it to use the DRM's DRM_MODE_ROTATE_*. Note that mirroring is at the moment handled as a separate boolean in the dispc driver, so we only use the DRM_MODE_ROTATE_* values. Note, DSS HW uses clockwise rotation, DRM counter-clockwise. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: rename color_mode to fourccTomi Valkeinen2017-06-021-2/+2
| | | | | | | | Now that we use fourccs, we can also rename the 'color_mode' variables to 'fourcc'. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: use DRM_FORMAT_* instead of OMAP_DSS_COLOR_*Tomi Valkeinen2017-06-021-15/+1
| | | | | | | | This patch changes omapdrm to use DRM_FORMAT_* values instead of OMAP_DSS_COLOR_* enum. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: use u32 instead of enum omap_color_modeTomi Valkeinen2017-06-021-3/+3
| | | | | | | In this step we drop 'enum omap_color_mode', and use u32 instead. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: change supported_modes to an arrayTomi Valkeinen2017-06-021-1/+1
| | | | | | | | | | | | enum omap_color_mode is a bitmask, so at the moment we present the supported color modes as mask. To be able to move to fourccs, we need to use an array to present the supported color modes. As a first step towards fourccs, this patch changes the code to use an array to store the enums. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: remove unneeded prototypesTomi Valkeinen2017-06-021-5/+0
| | | | | | | | omapdss.h contains prototypes for three functions, which are also defined in dss_features.h. Remove the extra prototypes from omapdss.h. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: remove dma & vrfb rotationTomi Valkeinen2017-06-021-3/+2
| | | | | | | | | | | | | | | | | | | | | We have three rotation methods supported by the SoCs with DSS: DMA, VRFB and TILER. DMA rotation works in theory on all DSS platforms, but in practice it's unusable due to the huge amount of memory bandwidth it uses, and has never really been used. VRFB is available on OMAP3, but is not supported by omapdrm, even though we have some code for it in the dispc driver. TILER is supported on OMAP4/OMAP5/DRA7/AM5 platforms, but has some driver bugs. To clean up the driver to help fixing the TILER issues, this patch drops the DMA and VRFB rotation support, leaving only TILER rotation. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: remove CLUTTomi Valkeinen2017-06-021-4/+0
| | | | | | | | | | DSS IP versions 2 and 3 support CLUT modes (color lookup table), but the driver has never supported those. We still have had some code for CLUT modes. As the newer DSS IP versions have dropped CLUT support, we might as well clean up the driver by removing the CLUT related code. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: Remove unused omap_dss_find_output() functionLaurent Pinchart2017-06-021-1/+0
| | | | | | | The omap_dss_find_output() function is unused, remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* drm/omap: remove omap_overlay & omap_overlay_managerTomi Valkeinen2017-06-021-91/+0
| | | | | | | Structs omap_overlay and omap_overlay_manager are not used, remove them. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: remove unused fieldsTomi Valkeinen2017-06-021-17/+0
| | | | | | | Remove unused fields in struct omap_dss_device. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: remove legacy get_resolutionTomi Valkeinen2017-06-021-5/+0
| | | | | | | get_resolution is not used, remove it. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: remove unused get_dimensions()Tomi Valkeinen2017-06-021-2/+0
| | | | | | | get_dimensions function pointer is not used, remove it. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: remove rfbiTomi Valkeinen2017-06-021-32/+0
| | | | | | | | | | | The RFBI driver has not worked nor compiled for many years. There are very few boards out there that use RFBI, and no one has stepped up to fix it. So let's remove the RFBI code that doesn't even compile. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: dpi: remove legacy data_linesTomi Valkeinen2017-06-021-6/+0
| | | | | | | Remove DPI's legacy data_lines code. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drm/omap: remove recommended_bppTomi Valkeinen2017-06-021-2/+0
| | | | | | | recommended_bpp hasn't been used for ages, remove the code. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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