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* drm/komeda: Potential error pointer dereferenceDan Carpenter2019-06-061-1/+1
| | | | | | | | | | We need to check whether drm_atomic_get_crtc_state() returns an error pointer before dereferencing "crtc_st". Fixes: 9e5603094176 ("drm/komeda: Add komeda_plane/plane_helper_funcs") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: "james qian wang (Arm Technology China)" <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: remove set but not used variable 'kcrtc'YueHaibing2019-06-061-2/+0
| | | | | | | | | | | | | | Fixes gcc '-Wunused-but-set-variable' warning: drivers/gpu/drm/arm/display/komeda/komeda_plane.c: In function komeda_plane_atomic_check: drivers/gpu/drm/arm/display/komeda/komeda_plane.c:49:22: warning: variable kcrtc set but not used [-Wunused-but-set-variable] It is never used since introduction in commit 9e5603094176 ("drm/komeda: Add komeda_plane/plane_helper_funcs") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: fixing of DMA mapping sg segment warningLowry Li (Arm Technology China)2019-06-042-0/+6
| | | | | | | | | | | | | | | | | | | | | Fixing the DMA mapping sg segment warning, which shows "DMA-API: mapping sg segment longer than device claims to support [len=921600] [max=65536]". Fixed by setting the max segment size at Komeda driver. This patch depends on: - https://patchwork.freedesktop.org/series/54448/ - https://patchwork.freedesktop.org/series/54449/ - https://patchwork.freedesktop.org/series/54450/ - https://patchwork.freedesktop.org/series/58976/ Changes since v1: - Adds member description - Adds patch denpendency in the comment Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com> Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Reviewed-by: Ayan Kumar Halder <ayan.halder@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Constify the usage of komeda_component/pipeline/dev_funcsjames qian wang (Arm Technology China)2019-06-037-18/+18
| | | | | | | | | | Depends on: - https://patchwork.freedesktop.org/series/58976/ - https://patchwork.freedesktop.org/series/59855/ Reported-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* Merge tag 'drm-misc-next-fixes-2019-05-08' of ↵Dave Airlie2019-05-091-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm/drm-misc into drm-next - A handful of fixes from -next that just missed feature freeze - More panfrost fixes that went directly in -misc-next-fixes (various) - Fix searchpaths during build (Masahiro) - msm patch to fix the driver for chips without zap shader (Rob) - Fix freeing imported buffers in drm_gem_cma_free_object() (Noralf) Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Rob Clark <robdclark@chromium.org> Cc: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Dave Airlie <airlied@redhat.com> From: Sean Paul <sean@poorly.run> Link: https://patchwork.freedesktop.org/patch/msgid/20190508205153.GA91135@art_vandelay
| * drm: prefix header search paths with $(srctree)/Masahiro Yamada2019-04-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the Kbuild core manipulates header search paths in a crazy way [1]. To fix this mess, I want all Makefiles to add explicit $(srctree)/ to the search paths in the srctree. Some Makefiles are already written in that way, but not all. The goal of this work is to make the notation consistent, and finally get rid of the gross hacks. Having whitespaces after -I does not matter since commit 48f6e3cf5bc6 ("kbuild: do not drop -I without parameter"). [1]: https://patchwork.kernel.org/patch/9632347/ Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/1553859161-2628-1-git-send-email-yamada.masahiro@socionext.com
* | drm/komeda: Mark the local functions as staticjames qian wang (Arm Technology China)2019-05-076-17/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | Fix the kbuild test rebot reported warnings: - symbol was not declared. Should it be static? - missing braces around initializer Depends on: - https://patchwork.freedesktop.org/series/58976/ Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Fixed warning: Function parameter or member not describedjames qian wang (Arm Technology China)2019-05-076-23/+85
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixed the warnings: Function parameter or member 'xxx' not described when make htmldocs This patch depends on: - https://patchwork.freedesktop.org/series/54448/ - https://patchwork.freedesktop.org/series/54449/ - https://patchwork.freedesktop.org/series/54450/ v2: Rebase and add reporter Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Expose bus_width to Komeda-COREjames qian wang (Arm Technology China)2019-05-072-3/+4
| | | | | | | | | | | | | | | | | | | | CHIP set bus_width according to the HW configuration, and CORE will use it as buffer alignment. v2: Rebase Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add sysfs attribute: core_id and config_idjames qian wang (Arm Technology China)2019-05-074-0/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add two sysfs node: core_id, config_id, user can read them to fetch the HW product information. Also, use memset to initialize config_id, rather than quirky C syntax. Courtesy of Nathan Chancellor <natechancellor@gmail.com>. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> [Merged Nathan's patch that uses memset to initialize config_id into original patch as the fixes tag changed due to rebase, reworded the commit to reference the merged patch] Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_kms_checkjames qian wang (Arm Technology China)2019-04-291-1/+29
| | | | | | | | | | | | | | | | | | | | | | Implement komeda_kms_check to add all affected_planes (even unchanged) to drm_atomic_state. since komeda need to re-calculate the resources assumption in every commit. v2: Rebase Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_crtc_funcsjames qian wang (Arm Technology China)2019-04-291-0/+48
| | | | | | | | | | | | | | | | | | | | Added functions: - komeda_crtc_reset - komeda_crtc_vblank_enable - komeda_crtc_vblank_disable Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_crtc_vblank_enable/disablejames qian wang (Arm Technology China)2019-04-293-0/+32
| | | | | | | | | | | | | | Add a new komeda_dev_func->on_off_vblank to enable/disable HW vblank event Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_crtc_atomic_enable/disablejames qian wang (Arm Technology China)2019-04-294-5/+139
| | | | | | | | | | | | | | | | | | | | Pass enable/disable command to komeda and adjust komeda hardware for enable/disable a display instance. v2: Rebase Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_crtc_prepare/unpreparejames qian wang (Arm Technology China)2019-04-294-0/+164
| | | | | | | | | | | | | | | | | | | | | | | | These two function will be used by komeda_crtc_enable/disable to do some prepartion works when enable/disable a crtc. like enable a crtc: 1. Adjust display operation mode. 2. Enable/prepare needed clk. v2: Rebase Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_crtc_mode_valid/fixupjames qian wang (Arm Technology China)2019-04-291-0/+52
| | | | | | | | | | | | | | | | | | komeda_crtc_mode_valid compares the input mode->clk with main engine clk and AXI clk, and reject the mode if the required pixel clk can not be satisfied by main engine clk and AXI-clk. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_crtc_atomic_flushjames qian wang (Arm Technology China)2019-04-295-0/+89
| | | | | | | | | | | | | | | | | | A komeda flush is comprised two steps: 1. update pipeline/component state to HW. 2. call dev_func->flush to notify HW to kickoff the update. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_release_unclaimed_resourcesjames qian wang (Arm Technology China)2019-04-293-0/+88
| | | | | | | | | | | | | | | | | | | | | | | | | | Komeda driver treats KMS-CRTC/PLANE as user which will acquire pipeline resources, but we still need to release the unclaimed resources. crtc_atomic_check is the final check stage, so beside build a display data pipeline according the crtc_state, but still needs to release/disable the unclaimed pipeline resources. v2: Rebase Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_build_display_data_flowjames qian wang (Arm Technology China)2019-04-292-1/+78
| | | | | | | | | | | | | | | | | | | | | | This function builds a display output pipeline according to crtc_state. And this change only added single pipeline support, the dual pipeline with slave enabled data flow support will be added in the following change. v2: Rebase Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_plane/plane_helper_funcsjames qian wang (Arm Technology China)2019-04-291-0/+129
| | | | | | | | | | | | | | | | | | | | | | | | | | Per komeda design KMS-plane maps to komeda layer input pipeline. komeda_plane_atomic_check is for building a komeda layer input pipeline. And KMS-plane is only a user of komeda resources. so there is no real HW update for plane, but all HW update will be handled in crtc->flush. v2: Rebase Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_build_layer_data_flowjames qian wang (Arm Technology China)2019-04-292-1/+289
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | build_layer_data_flow builds a input pipeline according to plane_state. and in this initial stage only added this simplest pipeline usage: Layer -> compiz The scaler and layer_split will be added in the future. v2: - Rebase. - Introduce struct komeda_data_flow_cfg - Add a function komeda_component_validate_private to replace the MACRO component_validate_private Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Initialize komeda component as drm private objectjames qian wang (Arm Technology China)2019-04-293-17/+208
| | | | | | | | | | | | | | | | | | | | | | | | | | Initialize koemda_layer, komeda_compiz, komeda_improc and komeda_timing_ctrlr as drm private object, then track komeda private component state by drm_atomic_state. v2: - Update code after Applied commit: b962a12050a3 ("drm/atomic: integrate modeset lock with private objects") Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* | drm/komeda: Add komeda_pipeline/component_get_state_and_set_userjames qian wang (Arm Technology China)2019-04-292-0/+145
|/ | | | | | | | | | | | | | | get_state_and_set_user packed get_state and set_user into one function, which get pipeline/component state for a specific pipeline/component, if success set the user to it. v2: - Rebase. - Applied commit: b962a12050a3 ("drm/atomic: integrate modeset lock with private objects") And delete our private modeset lock for pipeline. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* arm/komeda: Compile komeda_debugfs_init() only if CONFIG_DEBUG_FS is enabledLiviu Dudau2019-04-011-0/+2
| | | | | | | | | | | We don't call this function if CONFIG_DEBUG_FS is not defined, but we should not be compiling it either, as the declaration of the debugfs core functions is not included. Reported by the kbuild test robot. Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Add debugfs node "register" for register dumpjames qian wang (Arm Technology China)2019-04-015-0/+285
| | | | | | | | | | | Add a debugfs node "register" and entry function dump_register to dev/pipeline/component to register dump, then user can read "/sys/kernel/debug/komeda/register" to get the register values via these chip function. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> [Added the d71_layer_dump() function that was in a previous commit] Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Add irq handlingjames qian wang (Arm Technology China)2019-04-016-2/+346
| | | | | | | | | | | | | | | | | | | | | | 1. Added irq_handler/irq_enable/irq_disable to komeda_dev_func, then the Komeda-CORE can control the HW irq via these chip function. 2. Install irq and register irq_handler to system by DRM, so once the IRQ coming, the handling sequence is: komeda_kms_irq_handler(int irq, void *data) /* step 1. call into the CHIP to recognize event */ mdev->funcs->irq_handler(mdev, &evts); /* step 2. notify the crtc to handle the events */ for (i = 0; i < kms->n_crtcs; i++) komeda_crtc_handle_event(&kms->crtcs[i], &evts); v2: - Move get IRQ number into this change. - Enable irq before drm_dev_register. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Add komeda_assemble_pipelinesjames qian wang (Arm Technology China)2019-04-013-1/+82
| | | | | | | | | | | | | komeda_accemble_pipelines is for: 1. Verifing the component->supported_inputs according to the pipeline->avail_components. 2. Generating component->supported_outputs. v2: Lower the debug message of komeda_component_dump to DRM_DEBUG. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Add D71 improc and timing_ctrlrjames qian wang (Arm Technology China)2019-04-013-2/+118
| | | | | | | | | Add and initialize improc and timing_ctrlr according to D71 capablitites v2: Rebase. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Add d71 compiz componentjames qian wang (Arm Technology China)2019-04-012-8/+110
| | | | | | | | | Implement d71_compiz_init and add compiz component to komeda-CORE v2: Rebase. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Add d71 layerjames qian wang (Arm Technology China)2019-04-013-4/+185
| | | | | | | | | | | | | 1. Add detailed layer/layer_state definitions 2. Add d71_layer_init to report layer features and capabilities according to D71 layer block. 3. Add d71_layer_updat/disable v2: Rebase. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> [removed d71_layer_dump() from this commit] Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Add d71_enum_resources and d71_cleanupjames qian wang (Arm Technology China)2019-03-217-17/+858
| | | | | | | | | | | | | | | | | | | | | | | | D71 consists of a number of Register Blocks, every Block controls a specific HW function, every block has a common block_header to represent its type and pipeline information. GCU (Global Control Unit) is the first Block which describe the global information of D71 HW, Like number of block contained and the number of pipeline supported. So the d71_enum_resources parsed GCU and create pipeline according the GCU configuration, and then iterate and detect the blocks that indicated by the GCU and block_header. And this change also added two struct d71_dev/d71_pipeline to extend komeda_dev/komeda_pipeline to add some d71 only members. v2: - Return the specific errno not -1. - Use DRM_DEBUG as default debug msg printer. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: fix build with drm_modeset_helper.h updateSam Ravnborg2019-02-116-9/+26
| | | | | | | | | | | | | | | | | | | | | | | | With drmP.h removed from drm_modeset_helper.h the build of komeda filed as reported by linux-next Add missing include files to fix build. For the files touched group include files and sort them. The fix was tested on a tree with drm-misc-next merged. And the patch was also tested to work without drm-misc-next merged. Build tested on arm + x86. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> [linux-next] Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: James Wang <james.qian.wang@arm.com> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Brian Starkey <brian.starkey@arm.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190208221324.27002-1-sam@ravnborg.org
* Merge branch 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld into ↵Dave Airlie2019-02-011-1/+1
| | | | | | | | | | | | drm-next This pull includes the new Arm "komeda" DRM driver. It is currently hosted in the same repo as the other "mali-dp" driver because it is the next iteration of the IP. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Liviu Dudau <Liviu.Dudau@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190131173600.GN25147@e110455-lin.cambridge.arm.com
* drm/komeda: Off by one in komeda_fb_get_pixel_addr()Dan Carpenter2019-01-301-1/+1
| | | | | | | | | The > should be >= to avoid an off by one bug. Fixes: c46c24bb6b11 ("drm/komeda: Add komeda_framebuffer") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm: arm/komeda: Remove IRQ parsing from initial seriesLiviu Dudau2019-01-183-12/+1
| | | | | | | | | The initial series is only introducing the basic components and not implementing IRQ handling. Remove the left over code that touches IRQs until the proper implementation is introduced in a later series. Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Attach komeda_dev to DRM-KMSjames qian wang (Arm Technology China)2019-01-148-1/+605
| | | | | | | | | | | | | | | | | | | | | | | | Add komeda_kms abstracton to attach komeda_dev to DRM-KMS CRTC: according to the komeda_pipeline PLANE: according to komeda_layer (layer input pipeline) PRIVATE_OBJS: komeda_pipeline/component all will be treat as private_objs komeda_kms is for connecting DRM-KMS and komeda_dev, like reporting the kms object properties according to the komeda_dev, and pass/convert KMS's requirement to komeda_dev. Changes in v4: - Set drm_atomic_helper_check as mode_config->atomic_check. Changes in v3: - Fixed style problem found by checkpatch.pl --strict. Changes in v2: - Unified abbreviation of "pipeline" to "pipe". Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Add komeda_framebufferjames qian wang (Arm Technology China)2019-01-143-1/+201
| | | | | | | | | | | | komeda_framebuffer is for extending drm_framebuffer to add komeda own attributes and komeda specific fb handling. Changes in v3: - Fixed style problem found by checkpatch.pl --strict. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Add komeda_format_caps for format handlingjames qian wang (Arm Technology China)2019-01-147-1/+256
| | | | | | | | | | | | | | | | | | | komeda_format_caps is for describing ARM display specific features and limitations of a specific format, and format_caps will be linked into &komeda_framebuffer like a extension of &drm_format_info. And komed_format_caps_table will be initialized before the enum_resources, since the layer features description depend on this format_caps table, so we'd better initialize the table first. Changes in v4: - Rebase. Changes in v3: - Fixed style problem found by checkpatch.pl --strict. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Add DT parsingjames qian wang (Arm Technology China)2019-01-144-0/+90
| | | | | | | | | | | | | | | | | Parse DT and initialize corresponding dev/pipeline attributes. Changes in v4: - Rebase. Changes in v3: - Fixed style problem found by checkpatch.pl --strict. Changes in v2: - Unified abbreviation of "pipeline" to "pipe". Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: Build komeda to be a platform modulejames qian wang (Arm Technology China)2019-01-145-1/+215
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement a simple wrapper for platform module to build komeda to module, Also add a very simple D71 layer code to show how to discover a product. Komeda driver direct bind the product ENTRY function xxx_identity to DT compatible name like: d71_product = { .product_id = MALIDP_D71_PRODUCT_ID, .identify = d71_identify, }, const struct of_device_id komeda_of_match[] = { { .compatible = "arm,mali-d71", .data = &d71_product, }, {}, }; Then when linux found a matched DT node and call driver to probe, we can easily get the of data, and call into the product to do the identify: komeda_bind() { ... product = of_device_get_match_data(dev); product->identify(); ... } Changes in v4: - Replaced kzalloc with devm_kzalloc Changes in v3: - Fixed style problem found by checkpatch.pl --strict. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
* drm/komeda: komeda_dev/pipeline/component definition and initialzationjames qian wang (Arm Technology China)2019-01-149-0/+823
1. Added a brief definition of komeda_dev/pipeline/component, this change didn't add the detailed component features and capabilities, which will be added in the following changes. 2. Corresponding resources discovery and initialzation functions. Changes in v4: - Deleted unnecessary headers Changes in v3: - Fixed style problem found by checkpatch.pl --strict. Changes in v2: - Unified abbreviation of "pipeline" to "pipe". Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>