- 30 Jun, 2021 1 commit
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Zhan Liu authored
[Why] Sometimes, DP receiver chip power-controlled externally by an Embedded Controller could be treated and used as eDP, if it drives mobile display. In this case, we shouldn't be doing power-sequencing, hence we can skip waiting for T7-ready and T9-ready." [How] Added a feature mask to enable eDP no power sequencing feature. To enable this, set 0x10 flag in amdgpu.dcfeaturemask on Linux command line. Signed-off-by: Zhan Liu <zhan.liu@amd.com> Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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- 23 Jun, 2021 39 commits
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Dave Airlie authored
Merge tag 'amd-drm-next-5.14-2021-06-22-1' of https://gitlab.freedesktop.org/agd5f/linux into drm-next amd-drm-next-5.14-2021-06-22-1: amdgpu: - Userptr BO fixes - RAS fixes - Beige Goby fixes - Add some missing freesync documentation - Aldebaran fixes - SR-IOV fixes - Potential memory corruption fix in framebuffer handling - Revert GFX9, 10 doorbell fixes, we just end up trading one bug for another - Multi-plane cursor fixes with rotation - LTTPR fixes - Backlight fixes - eDP fix - Fold DRM_AMD_DC_DCN3_1 into DRM_AMD_DC_DCN - Misc code cleanups amdkfd: - Topology fix - Locking fix radeon: - Misc code cleanup Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210622210345.27297-1-alexander.deucher@amd.com
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https://gitlab.freedesktop.org/drm/msmDave Airlie authored
* devcoredump support for display errors * dpu: irq cleanup/refactor * dpu: dt bindings conversion to yaml * dsi: dt bindings conversion to yaml * mdp5: alpha/blend_mode/zpos support * a6xx: cached coherent buffer support * a660 support * gpu iova fault improvements: - info about which block triggered the fault, etc - generation of gpu devcoredump on fault * assortment of other cleanups and fixes Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rob Clark <robdclark@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGs4=qsGBBbyn-4JWqW4-YUSTKh67X3DsPQ=T2D9aXKqNA@mail.gmail.com
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Rob Clark authored
This reverts commit c1d12c19. Breaks armv7 build ERROR: modpost: "__aeabi_ldivmod" [drivers/gpu/drm/msm/msm.ko] undefined! Signed-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
Instead of using static bandwidth setup, manage bandwidth dynamically, depending on the amount of allocated planes, their format and resolution. Co-developed-with: James Willcox <jwillcox@squareup.com> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/r/20210525131316.3117809-8-dmitry.baryshkov@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>
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James Willcox authored
Prior downstream kernels had "fudge factors" in devicetree which would be applied to things like interconnect bandwidth calculations. Bring some of those values back here. Signed-off-by: James Willcox <jwillcox@squareup.com> [DB: changed _ff to _inefficiency, fixed patch description] Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210525131316.3117809-7-dmitry.baryshkov@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
Instead of implemeting zpos property on our own, use standard zpos property support. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210525131316.3117809-6-dmitry.baryshkov@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
Hook alpha and pixel blend mode support to be exported as proper DRM plane properties. This allows using this functionality from the userspace. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210525131316.3117809-5-dmitry.baryshkov@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
Use drm_plane_state's 'pixel_blend_mode' field rather than using 'premultiplied' field to mdp5_plane_state. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210525131316.3117809-4-dmitry.baryshkov@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
Use drm_plane_state's 'alpha' field rather than adding extra 'alpha' field to mdp5_plane_state. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210525131316.3117809-3-dmitry.baryshkov@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
Use generic helpers code to manage drm_plane_state part of mdp5_plane state instead of manually coding all the details. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210525131316.3117809-2-dmitry.baryshkov@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
Move the call to dsi_mgr_phy_enable after checking whether the DSI interface is slave, so that PHY enablement happens together with the host enablement. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210609211211.2561090-1-dmitry.baryshkov@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>
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Rob Clark authored
Just for the purposes of testing. Write to it the # of objects to scan, read back the # freed. Signed-off-by: Rob Clark <robdclark@chromium.org> Link: https://lore.kernel.org/r/20210614150618.729610-1-robdclark@gmail.comSigned-off-by: Rob Clark <robdclark@chromium.org>
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Bjorn Andersson authored
Handling of the interrupt callback lists is done in dpu_core_irq.c, under the "cb_lock" spinlock. When these operations results in the need for enableing or disabling the IRQ in the hardware the code jumps to dpu_hw_interrupts.c, which protects its operations with "irq_lock" spinlock. When an interrupt fires, dpu_hw_intr_dispatch_irq() inspects the hardware state while holding the "irq_lock" spinlock and jumps to dpu_core_irq_callback_handler() to invoke the registered handlers, which traverses the callback list under the "cb_lock" spinlock. As such, in the event that these happens concurrently we'll end up with a deadlock. Prior to '1c1e7763a6d4 ("drm/msm/dpu: simplify IRQ enabling/disabling")' the enable/disable of the hardware interrupt was done outside the "cb_lock" region, optimitically by using an atomic enable-counter for each interrupt and an warning print if someone changed the list between the atomic_read and the time the operation concluded. Rather than re-introducing the large array of atomics, this change embraces the fact that dpu_core_irq and dpu_hw_interrupts are deeply entangled and make them share the single "irq_lock". Following this step it's suggested that we squash the two parts into a single irq handling thing. Fixes: 1c1e7763a6d4 ("drm/msm/dpu: simplify IRQ enabling/disabling") Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210611170003.3539059-1-bjorn.andersson@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>
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Rob Clark authored
Wire up support to stall the SMMU on iova fault, and collect a devcore- dump snapshot for easier debugging of faults. Currently this is a6xx-only, but mostly only because so far it is the only one using adreno-smmu-priv. Signed-off-by: Rob Clark <robdclark@chromium.org> Acked-by: Jordan Crouse <jordan@cosmicpenguin.net> Link: https://lore.kernel.org/r/20210610214431.539029-6-robdclark@gmail.comSigned-off-by: Rob Clark <robdclark@chromium.org>
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Rob Clark authored
Add, via the adreno-smmu-priv interface, a way for the GPU to request the SMMU to stall translation on faults, and then later resume the translation, either retrying or terminating the current translation. This will be used on the GPU side to "freeze" the GPU while we snapshot useful state for devcoredump. Signed-off-by: Rob Clark <robdclark@chromium.org> Acked-by: Jordan Crouse <jordan@cosmicpenguin.net> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20210610214431.539029-5-robdclark@gmail.comSigned-off-by: Rob Clark <robdclark@chromium.org>
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Jordan Crouse authored
Use the new adreno-smmu-priv fault info function to get more SMMU debug registers and print the current TTBR0 to debug per-instance pagetables and figure out which GPU block generated the request. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@chromium.org> Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20210610214431.539029-4-robdclark@gmail.comSigned-off-by: Rob Clark <robdclark@chromium.org>
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Jordan Crouse authored
Add a callback in adreno-smmu-priv to read interesting SMMU registers to provide an opportunity for a richer debug experience in the GPU driver. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20210610214431.539029-3-robdclark@gmail.comSigned-off-by: Rob Clark <robdclark@chromium.org>
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Jordan Crouse authored
Call report_iommu_fault() to allow upper-level drivers to register their own fault handlers. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@chromium.org> Acked-by: Will Deacon <will@kernel.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20210610214431.539029-2-robdclark@gmail.comSigned-off-by: Rob Clark <robdclark@chromium.org>
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Samuel Iglesias Gonsalvez authored
While keeping the previous default value for hangcheck period, we allow now the possibility of configuring its value via debugfs. Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Link: https://lore.kernel.org/r/20210607104441.184700-1-siglesias@igalia.comSigned-off-by: Rob Clark <robdclark@chromium.org>
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Jonathan Marek authored
Add adreno_is_{a660,a650_family} helpers and convert update existing adreno_is_a650 usage based on downstream driver's logic (changing into adreno_is_a650_family or adding adreno_is_a660). And add the remaining changes required for A660, again based on the downstream driver: missing GMU allocations, additional register init, dummy hfi BW table, cp protect list, entry in gpulist table, hwcg table, updated a6xx_ucode_check_version check. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20210608172808.11803-6-jonathan@marek.caSigned-off-by: Rob Clark <robdclark@chromium.org>
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Jonathan Marek authored
See downstream's "disable_tseskip" flag. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20210608172808.11803-5-jonathan@marek.caSigned-off-by: Rob Clark <robdclark@chromium.org>
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Jonathan Marek authored
downstream msm-5.14 kernel added a write to this register, so match that. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20210608172808.11803-4-jonathan@marek.caSigned-off-by: Rob Clark <robdclark@chromium.org>
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Jonathan Marek authored
SM8250 AOP firmware already sets up PDC registers for us, and it only needs to be enabled. This path will be used for other newer GPUs. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20210608172808.11803-3-jonathan@marek.caSigned-off-by: Rob Clark <robdclark@chromium.org>
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Jonathan Marek authored
These aren't used by anything anymore. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Reviewed-by: Akhil P Oommen <akhilpo@codeaurora.org> Link: https://lore.kernel.org/r/20210608172808.11803-2-jonathan@marek.caSigned-off-by: Rob Clark <robdclark@chromium.org>
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Rob Clark authored
Based on mesa commit daa2ccff7a0201941db3901780d179e2634057d5 Small bit of .c churn in the phy code to adapt to split up of phy related registers. Signed-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
The code does not really use dpu_hw_blk fields, so drop them, making dpu_hw_blk empty structure. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210515190909.1809050-5-dmitry.baryshkov@linaro.orgReviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
Use struct dpu_hw_merge_3d pointer in struct dpu_hw_pingpong rather than using struct dpu_hw_blk. This is the only user of dpu_hw_blk.id, which will be cleaned in the next patch. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210515190909.1809050-4-dmitry.baryshkov@linaro.orgReviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
The dpu_hw_blk_destroy() function is empty, so we can drop it now. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210515190909.1809050-3-dmitry.baryshkov@linaro.orgReviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
Remove all unused dpu_hw_blk features and functions: - dpu_hw_blk_get()/_put() and respective refcounting, - global list of all dpu_hw_blk instances, - dpu_hw_blk_ops and empty implementation inside each hw_blk subdriver. This leaves dpu_hw_blk as a placeholder with just type and index. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210515190909.1809050-2-dmitry.baryshkov@linaro.orgReviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Dmitry Baryshkov authored
In order to ease debugging of DSI host registration issues, print return code of dsi_mgr_setup_components(). Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/msm/dp/dp_link.c:374: warning: expecting prototype for dp_parse_video_pattern_params(). Prototype was for dp_link_parse_video_pattern_params() instead drivers/gpu/drm/msm/dp/dp_link.c:573: warning: expecting prototype for dp_parse_phy_test_params(). Prototype was for dp_link_parse_phy_test_params() instead drivers/gpu/drm/msm/dp/dp_link.c:975: warning: expecting prototype for dp_link_process_downstream_port_status_change(). Prototype was for dp_link_process_ds_port_status_change() instead Cc: Rob Clark <robdclark@gmail.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Chandan Uddaraju <chandanu@codeaurora.org> Cc: Kuogee Hsieh <khsieh@codeaurora.org> Cc: linux-arm-msm@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: freedreno@lists.freedesktop.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210602143300.2330146-15-lee.jones@linaro.orgReviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/msm/dp/dp_catalog.c:206: warning: Function parameter or member 'dp_catalog' not described in 'dp_catalog_aux_reset' drivers/gpu/drm/msm/dp/dp_catalog.c:206: warning: Excess function parameter 'aux' description in 'dp_catalog_aux_reset' Cc: Rob Clark <robdclark@gmail.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Chandan Uddaraju <chandanu@codeaurora.org> Cc: Stephen Boyd <swboyd@chromium.org> Cc: linux-arm-msm@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: freedreno@lists.freedesktop.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210602143300.2330146-14-lee.jones@linaro.orgReviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/msm/msm_gem.c:364: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/gpu/drm/msm/msm_gem.c:763: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Cc: Rob Clark <robdclark@gmail.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: "Christian König" <christian.koenig@amd.com> Cc: linux-arm-msm@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: freedreno@lists.freedesktop.org Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210602143300.2330146-13-lee.jones@linaro.orgReviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c:373: warning: expecting prototype for _dpu_plane_set_panic_lut(). Prototype was for _dpu_plane_set_danger_lut() instead drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c:498: warning: expecting prototype for _dpu_plane_set_vbif_qos(). Prototype was for _dpu_plane_set_qos_remap() instead Cc: Rob Clark <robdclark@gmail.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: linux-arm-msm@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: freedreno@lists.freedesktop.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210602143300.2330146-12-lee.jones@linaro.orgReviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Stephen Boyd authored
These messages are useful for bringup/early development but in production they don't provide much value. We know what sort of GPU we have and interrupt information can be gathered other ways. This cuts down on lines in the drm debug logs that happen too often, making the debug logs practically useless. Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Cc: Abhinav Kumar <abhinavk@codeaurora.org> Cc: Kuogee Hsieh <khsieh@codeaurora.org> Cc: aravindh@codeaurora.org Cc: Sean Paul <sean@poorly.run> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20210430193104.1770538-3-swboyd@chromium.org [resolve merge conflicts with dpu irq refactor] Signed-off-by: Rob Clark <robdclark@chromium.org>
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Kuogee Hsieh authored
Normal DP suspend operation contains two steps, display off followed by dp suspend, to complete system wide suspending cycle if display is up at that time. In this case, DP phy will be powered off at display off. However there is an exception case that depending on the timing of dongle plug in during system wide suspending, sometimes display off procedure may be skipped and dp suspend was called directly. In this case, dp phy is stay at powered on (phy->power_count = 1) so that at next resume dp driver crash at main link clock enable due to phy is not physically powered on. This patch will call dp_ctrl_off_link_stream() to tear down main link and power off phy at dp_pm_suspend() if main link had been brought up. Changes in V2: -- stashed changes into dp_ctrl.c -- add is_phy_on to monitor phy state Changes in V3: -- delete is_phy_on -- call dp_ctrl_off_link_stream() from dp_pm_suspend() Changes in V4: -- delete changes made at dp_power.c -- move main link status checking to dp_pm_suspend Changes in V5: -- correct commit id at Fixes tag Fixes: 8dbde399044b ("drm/msm/dp: handle irq_hpd with sink_count = 0 correctly) Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org> Tested-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/1622734846-14179-1-git-send-email-khsieh@codeaurora.orgSigned-off-by: Rob Clark <robdclark@chromium.org>
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Shaokun Zhang authored
Function 'dp_catalog_audio_enable' is declared twice, remove the repeated declaration. Cc: Rob Clark <robdclark@gmail.com> Cc: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/1621945327-10871-1-git-send-email-zhangshaokun@hisilicon.comReviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Guenter Roeck authored
The result of container_of() operations is never NULL unless the embedded element is the first element of the structure. This is not the case here. The NULL checks on the result of container_of() are therefore unnecessary and misleading. Remove them. This change was made automatically with the following Coccinelle script. @@ type t; identifier v; statement s; @@ <+... ( t v = container_of(...); | v = container_of(...); ) ... when != v - if (\( !v \| v == NULL \) ) s ...+> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210525112904.1747066-1-linux@roeck-us.netReviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> [DB: fixed patch subject] Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Guenter Roeck authored
The result of container_of() operations is never NULL unless the embedded element is the first element of the structure. This is not the case here. The NULL check on the result of container_of() is therefore unnecessary and misleading. Remove it. This change was made automatically with the following Coccinelle script. @@ type t; identifier v; statement s; @@ <+... ( t v = container_of(...); | v = container_of(...); ) ... when != v - if (\( !v \| v == NULL \) ) s ...+> While at it, remove unused but assigned variable hpd in dp_display_usbpd_attention_cb(). Signed-off-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210525032033.453143-1-linux@roeck-us.netReviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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