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- Feb 20, 2025
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Thomas Zimmermann authoredMove the cursor code into a separate source file for readability. No functional changes. v2: - include <linux/bits.h> Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250217122336.230067-5-tzimmermann@suse.de
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Thomas Zimmermann authored
Add support for cursor image data in ARGB4444 format. This is the hardware's native format and requires no conversion. Signed-off-by:
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Thomas Zimmermann authored
User-space cursor-image data is encoded in ARBG8888, while hardware supports ARGB4444. Implement the format conversion as part of the format-helper framework, so that other drivers can benefit. This allows to respect the damage area of the cursor update. In previous code, all cursor image data had to be converted on each update. Now, only the changed areas require an update. The hardware image is always updated completely, as it is required for the checksum update. The format-conversion helper still contains the old implementation's optimization of writing 2 output pixels at the same time. Signed-off-by:
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Thomas Zimmermann authored
Setting the cursor image requires a 32-bit checksum of the cursor image data. The current cursor code converts the image to ARGB4444 format and computes the checksum in a single step. Moving the checksum calculation into a separate helper will allow to move the format conversion into a shared helper. v2: - don't loop for checksum'ing final pixel (Jocelyn) - fix typo in commit message (Jocelyn) Signed-off-by:
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- Feb 19, 2025
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Maxime Ripard authored
drm_atomic_helper_wait_for_flip_done() will wait for pages flips on all CRTCs affected by a given commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20250213-bridge-connector-v3-26-e71598f49c8f@kernel.org Signed-off-by:
Maxime Ripard <mripard@kernel.org>
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Maxime Ripard authored
drm_atomic_helper_wait_for_dependencies() is the final part of a commit and signals it completion. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_cleanup_planes() is one of the final part of a commit, and will free up all plane resources used in the previous commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_wait_for_vblanks() waits for vblank events on all the CRTCs affected by a commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_commit_hw_done() signals hardware completion of a given commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_fake_vblank() fake a vblank event if needed when a new commit is being applied. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_commit_writebacks() updates all writeback connectors affected by a new commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_bridge_chain_enable() enables all bridges affected by a new commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_bridge_chain_pre_enable() enables all bridges affected by a new commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_commit_modeset_enables() enables all outputs affected by a new commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_commit_planes() updates all planes affected by a new commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
crtc_set_mode() deals with calling the modeset related hooks for CRTC, connectors and bridges if and when a new commit changes them. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_update_legacy_modeset_state() updates all the legacy modeset pointers a connector, encoder or CRTC might have with the ones being setup by a given commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_bridge_chain_post_disable() disables all bridges affected by a new commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_bridge_chain_disable() disables all bridges affected by a new commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
disable_outputs() disables all connectors and CRTCs affected by a commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_modeset_disables() disables all the outputs affected by a commit. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_commit_tail_rpm() is the final part of an atomic commit, and is given the state being committed as a parameter. However, that parameter is named old_state, but documented as the "new modeset state" which is all super confusing. Let's rename that parameter to state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_commit_tail() is the final part of an atomic commit, and is given a parameter with the drm_atomic_state being committed. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
drm_atomic_helper_wait_for_dependencies() waits for all the dependencies a commit has before going forward with it. It takes the drm_atomic_state being committed as a parameter. However, that parameter name is called (and documented) as old_state, which is pretty confusing. Let's rename that variable as state. Reviewed-by:
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Maxime Ripard authored
Even though the commit_tail () drm_atomic_state parameter is called old_state, it's actually the state being committed which is confusing. It's even more confusing since the atomic_commit_tail hook being called by commit_tail() parameter is called state. Let's rename the variable from old_state to state to make it less confusing. Reviewed-by:
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Maxime Ripard authored
It's pretty inconvenient to access the full atomic state from drm_bridges, so let's change the atomic_post_disable hook prototype to pass it directly. Reviewed-by:
Douglas Anderson <dianders@chromium.org> Tested-by:
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Maxime Ripard authored
It's pretty inconvenient to access the full atomic state from drm_bridges, so let's change the atomic_disable hook prototype to pass it directly. Reviewed-by:
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Maxime Ripard authored
It's pretty inconvenient to access the full atomic state from drm_bridges, so let's change the atomic_enable hook prototype to pass it directly. Reviewed-by:
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Maxime Ripard authored
It's pretty inconvenient to access the full atomic state from drm_bridges, so let's change the atomic_pre_enable hook prototype to pass it directly. Reviewed-by:
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Maxime Ripard authored
After some discussions on the mailing-list for an earlier revision of the series, it was suggested to document the evolution of drm_atomic_state and its use by drivers to explain some of the confusion one might still encounter when reading the framework code. Suggested-by:
Simona Vetter <simona.vetter@ffwll.ch> Link: https://lore.kernel.org/dri-devel/Z4jtKHY4qN3RNZNG@phenom.ffwll.local/ Reviewed-by:
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Dan Carpenter authored
If "rpc" is an error pointer then return directly. Otherwise it leads to an error pointer dereference. Fixes: 50f29005 ("drm/nouveau: support handling the return of large GSP message") Signed-off-by:
Dan Carpenter <dan.carpenter@linaro.org> Acked-by:
Zhi Wang <zhiw@nvidia.com> Signed-off-by:
Danilo Krummrich <dakr@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/b7052ac0-98e4-433b-ad58-f563bf51858c@stanley.mountain
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- Feb 18, 2025
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This is a DSI bridge, so set the bridge type accordingly. Signed-off-by:
Alexander Stein <alexander.stein@ew.tq-group.com> Reviewed-by:
Robert Foss <rfoss@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250120132135.554391-2-alexander.stein@ew.tq-group.com
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This is a DSI to LVDS bridge, so set the bridge type accordingly. Signed-off-by:
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Convert platform_get_resource(), devm_ioremap_resource() to a single call to devm_platform_ioremap_resource(). Signed-off-by:
Shixiong Ou <oushixiong@kylinos.cn> Reviewed-by:
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Thomas Zimmermann authored
Backmerging to get bugfixes from v6.14-rc2. Signed-off-by:
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- Feb 17, 2025
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Having an DRM_MODE_CONNECTOR_Unknown connector type is considered bad, and drm_panel_bridge_add_typed() and derivatives are deprecated for this. drm_panel_init() won't prevent initializing a panel with a DRM_MODE_CONNECTOR_Unknown connector type. Luckily there are no in-tree users doing it, so take this as an opportinuty to document a valid connector type must be passed. Returning an error if this rule is violated is not possible because drm_panel_init() is a void function. Add at least a warning to make any violations noticeable, especially to non-upstream drivers. Reviewed-by:
Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by:
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This function is for panel_bridge instances only. The silent return when invoked on other bridges might hide actual errors, so avoid them to go unnoticed. Reviewed-by:
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drm_panel_bridge_remove() reads bridge->funcs to find out whether this is a panel bridge or another kind of bridge. drm_bridge_is_panel() is made exactly for that, so use it. Reviewed-by:
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This comment is misleading as it refers to one of the inner if() branches only, not the whole outer if(). Move it to the branch it refers to. Reviewed-by:
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idx is an unsigned int, use %u for printk-style strings. Reviewed-by:
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