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path: root/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c
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2023-09-15drm/komeda: add NV12 format to support writeback layer typebaozhu.liu
When testing the d71 writeback layer function, the output format is set to NV12, and the following error message is displayed: [drm:komeda_fb_is_layer_supported] Layer TYPE: 4 doesn't support fb FMT: NV12 little-endian (0x3231564e) with modifier: 0x0.. Check the d71 data manual, writeback layer output formats includes NV12 format. Signed-off-by: baozhu.liu <lucas.liu@siengine.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230829093004.22860-1-lucas.liu@siengine.com
2022-07-22drm/komeda - At init write GCU control block to handle already on DPUCarsten Haitzler
If something has already set up the DPU before the komeda driver comes up, it will fail to init because it was just writing to the SRST bit in the GCU control register and ignoring others. This resulted in TBU bringup stalling and init failing. By writing completely we also set the mode back to 0 (inactive) too and thus TBU bringup works. Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220606114714.175499-2-carsten.haitzler@foss.arm.com
2022-06-20drm: Drop drm_blend.h from drm_crtc.hVille Syrjälä
drm_crtc.h has no need for drm_blend.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_blend.h. Quite a few placs do currently depend on drm_blend.h without actually including it directly. All of those need to be fixed up. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220613200317.11305-4-ville.syrjala@linux.intel.com Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com>
2019-12-27drm/komeda: Add event handling for EMPTY/FULLjames qian wang (Arm Technology China)
EMPTY/FULL are HW input/output FIFO condition identifer, which are useful information for addressing the problem, so expose them. Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com> Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191212072737.30116-1-james.qian.wang@arm.com
2019-12-12drm/komeda: Enable new product D32 supportjames qian wang (Arm Technology China)
D32 is simple version of D71, the difference is: - Only has one pipeline - Drop the periph block and merge it to GCU v2: Rebase. v3: Isolate the block counting fix to a new patch Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191210084828.19664-3-james.qian.wang@arm.com
2019-12-12drm/komeda: Update the chip identifyjames qian wang (Arm Technology China)
1. Drop komeda-CORE product id comparison and put it into the d71_identify 2. Update pipeline node DT-binding: (a). Skip the needless pipeline DT node. (b). Return fail if the essential pipeline DT node is missing. With these changes, for chips in same family no need to change the DT. v2: Rebase v3: Address Mihail's comments. Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com> Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191210084828.19664-2-james.qian.wang@arm.com
2019-12-12drm/komeda: Correct d71 register block countingjames qian wang (Arm Technology China)
Per HW, d71->num_blocks includes reserved blocks but no PERIPH block, correct the block counting accordingly. D71 happens to only have one reserved block and periph block, which hides this counting error. Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com> Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191210061015.25905-1-james.qian.wang@arm.com
2019-10-01drm/komeda: Use IRQ_RETVAL shorthand in d71_irq_handlerMihail Atanassov
No change in behaviour; IRQ_RETVAL is about twice as popular as manually writing out the ternary. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Ayan kumar halder <ayan.halder@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190920151247.25128-1-mihail.atanassov@arm.com
2019-09-27drm/komeda: SW workaround for D71 doesn't flush shadow registersLowry Li (Arm Technology China)
This is a SW workaround for shadow un-flushed when together with the DOU Timing-disable. D71 HW doesn't update shadow registers when display output is turned off. So when we disable all pipeline components together with display output disabling by one flush or one operation, the disable operation updated registers will not be flushed or valid in HW, which may lead problem. To workaround this problem, introduce a two phase disable for pipeline disable. Phase1: Disable components with display is on and flush it, this phase for flushing or validating the shadow registers. Phase2: Turn-off display output. 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> Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190906071750.4563-1-lowry.li@arm.com
2019-09-18drm/komeda: Adds register dump support for gcu, lup and douLowry Li (Arm Technology China)
Adds to support register dump on lpu and dou of pipeline and gcu on D71 Changes since v1: - For a constant format without additional arguments, use seq_puts() instead of seq_printf(). Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com> Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190917112525.25490-1-lowry.li@arm.com
2019-06-19drm/komeda: Add format support for Y0L2, P010, YUV420_8/10BITjames qian wang (Arm Technology China)
- Y0L2 and P010 are block (tiled) format, Update the kemeda logic to compatible with such block format. - Since DRM introduced a general block information to drm_format_info, the format_caps->tiled_size no long needed, delete it. - Build some fb utils functions for code sharing. Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-06-19drm/komeda: Adds SMMU supportLowry Li (Arm Technology China)
Adds iommu_connect and disconnect for SMMU support, and configures TBU translation once SMMU has been attached to the display device. Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com> [fixed checking of error code returned by dp_wait_cond() and removed extraneous DRM_ERROR() calls] Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-06-19drm/komeda: Adds limitation check for AFBC wide block not support Rot90Lowry Li (Arm Technology China)
Komeda series hardware doesn't support Rot90 for AFBC wide block. So add limitation check to reject it if such configuration has been posted. 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> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-06-19arm/komeda: Convert dp_wait_cond() to return an error code.Liviu Dudau
dp_wait_cond() currently returns the number of retries left over which is hardly an useful information. Convert to returning -ETIMEDOUT when the wait times out, or 0 (zero) when condition is met before deadline. Also convert the users of the function to return the error value. Signed-off-by: Liviu Dudau <liviu.dudau@arm.com> Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
2019-06-19drm/komeda: Add engine clock requirement check for the downscalingjames qian wang (Arm Technology China)
For downscaling there is a restriction, the downscaling needed engine clock can not acceed the real engine clock, and the clock requirement mostly depend on the specific HW, to solve this problem: 1. Add a pipeline func - downscaling_clk_check for CORE to query the real HW if downscaling can be supported. 2. Add new property clock ratio which is the ratio of: (mclk << 32) / pxlclk then User driver can use this ratio to do the clock check to avoid post an invalid downscaling to kernel. v2: Rebase and Delete debug print Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-06-03drm/komeda: Constify the usage of komeda_component/pipeline/dev_funcsjames qian wang (Arm Technology China)
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>
2019-05-07drm/komeda: Expose bus_width to Komeda-COREjames qian wang (Arm Technology China)
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>
2019-04-29drm/komeda: Add komeda_crtc_vblank_enable/disablejames qian wang (Arm Technology China)
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>
2019-04-29drm/komeda: Add komeda_crtc_prepare/unpreparejames qian wang (Arm Technology China)
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>
2019-04-29drm/komeda: Add komeda_crtc_atomic_flushjames qian wang (Arm Technology China)
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>
2019-04-01drm/komeda: Add irq handlingjames qian wang (Arm Technology China)
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>
2019-03-21drm/komeda: Add d71_enum_resources and d71_cleanupjames qian wang (Arm Technology China)
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>
2019-01-14drm/komeda: Add komeda_format_caps for format handlingjames qian wang (Arm Technology China)
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>
2019-01-14drm/komeda: Build komeda to be a platform modulejames qian wang (Arm Technology China)
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>