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path: root/drivers/gpu/drm/tegra/rgb.c
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* drm: tegra: Rely on the default ->best_encoder() behaviorBoris Brezillon2016-06-10
| | | | | | | | | | | All outputs have a 1:1 relationship between connectors and encoders and the driver is relying on the atomic helpers: we can drop the custom ->best_encoder() implementation and let the core call drm_atomic_helper_best_encoder() for us. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1465300095-16971-14-git-send-email-boris.brezillon@free-electrons.com
* drm: Pass 'name' to drm_encoder_init()Ville Syrjälä2015-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Done with coccinelle for the most part. However, it thinks '...' is part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder in its place and got rid of it with sed afterwards. @@ identifier dev, encoder, funcs; @@ int drm_encoder_init(struct drm_device *dev, struct drm_encoder *encoder, const struct drm_encoder_funcs *funcs, int encoder_type + ,const char *name, int DOTDOTDOT ) { ... } @@ identifier dev, encoder, funcs; @@ int drm_encoder_init(struct drm_device *dev, struct drm_encoder *encoder, const struct drm_encoder_funcs *funcs, int encoder_type + ,const char *name, int DOTDOTDOT ); @@ expression E1, E2, E3, E4; @@ drm_encoder_init(E1, E2, E3, E4 + ,NULL ) v2: Add ', or NULL...' to @name kernel doc (Jani) Annotate the function with __printf() attribute (Jani) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1449670818-2966-1-git-send-email-ville.syrjala@linux.intel.com
* drm/tegra: rgb: Restore DPMSThierry Reding2015-08-13
| | | | | | | | | | | | | | In order to restore DPMS with atomic mode-setting, move all code from the ->mode_set() callback into ->enable(). At the same time, rename the ->prepare() callback to ->disable() to use the names preferred by atomic mode-setting. This simplifies the calling sequence and will allow DPMS code to use runtime PM in subsequent patches. While at it, remove the enabled field that hasn't been used since the demidlayering of the output drivers done in preparation for the atomic mode-setting conversion. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: dc: Unify enabling the display controllerThierry Reding2015-01-27
| | | | | | | | | | | | Previously output drivers would enable continuous display mode and power up the display controller at various points during the initialization. This is suboptimal because it accesses display controller registers in output drivers and duplicates a bit of code. Move this code into the display controller driver and enable the display controller as the final step of the ->mode_set_nofb() implementation. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Remove unused ->mode_fixup() callbacksThierry Reding2015-01-27
| | | | | | | All output drivers have now been converted to use the ->atomic_check() callback, so the ->mode_fixup() callbacks are no longer used. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: rgb: Implement ->atomic_check()Thierry Reding2015-01-27
| | | | | | | | | | The implementation of the ->atomic_check() callback precomputes all parameters to check if the given configuration can be applied. If so the precomputed values are stored in the atomic state object for the encoder and applied during modeset. In that way the modeset no longer needs to perform any checking but simply program values into registers. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Atomic conversion, phase 2Thierry Reding2015-01-27
| | | | | | | | Hook up the default ->reset() and ->atomic_duplicate_state() helpers. This ensures that state objects are properly created and framebuffer reference counts correctly maintained. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Atomic conversion, phase 1Thierry Reding2015-01-27
| | | | | | | | | | | | | Implement initial atomic state handling. Hook up the CRTCs, planes' and connectors' ->atomic_destroy_state() callback to ensure that the atomic state objects don't leak. Furthermore the CRTC now implements the ->mode_set_nofb() callback that is used by new helpers to implement ->mode_set() and ->mode_set_base(). These new helpers also make use of the new plane helper functions which the driver now provides. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Output cleanup functions cannot failThierry Reding2015-01-27
| | | | | | | The tegra_output_exit() and tegra_output_remove() functions cannot fail, so make them return void. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Remove remnants of the output midlayerThierry Reding2015-01-27
| | | | | | | The tegra_output midlayer is now completely gone and output drivers use it purely as a helper library. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: rgb: DemidlayerThierry Reding2015-01-27
| | | | | | | | | | Implement encoder and connector within the RGB driver itself using the Tegra output helpers rather than using the Tegra output as midlayer. By doing so one level of indirection is removed and output drivers become more flexible while keeping the majority of the advantages provided by the common output helpers. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Stop CRTC at CRTC disable timeThierry Reding2015-01-27
| | | | | | | | | | | | | Previously output drivers would all stop the display controller in their disable path. However with the transition to atomic modesetting the display controller needs to be kept running until all planes have been disabled so that software can properly determine (using VBLANK counts) when it is safe to remove the framebuffers associated with the planes. Moving this code into the display controller's disable path also gets rid of the duplication of this into all output drivers. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Use tegra_commit_dc() in output driversThierry Reding2015-01-27
| | | | | | | All output drivers have open-coded variants of this function, so export it to remove some code duplication. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: dc - Compute shift clock divider in output driversThierry Reding2014-06-05
| | | | | | | | The shift clock divider is highly dependent on the type of output, so push computation of it down into the output drivers. The old code used to work merely by accident. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Add guard to avoid double disable/enable of RGB outputsDmitry Osipenko2014-02-12
| | | | | | | | | Add guard to check whether RGB output is already enabled in the way it's done for HDMI output. Fixes possible hang on trying to disable output twice (first time during driver probe and second on fb registering). Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Fix possible CRTC mask for RGB outputsThierry Reding2014-01-14
| | | | | | | | | | The mask of possible CRTCs that an output (DRM encoder) can be attached to is relative to the position within the DRM device's list of CRTCs. Deferred probing can cause this to not match the pipe number associated with a CRTC. Use the newly introduced drm_crtc_mask() to compute the mask by looking up the proper index of the given CRTC in the list. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Relocate some output-specific codeThierry Reding2013-12-20
| | | | | | | | Some of the code in the CRTC's mode setting code is specific to the RGB output or needs to be called slightly differently depending on the type of output. Push that code down into the output drivers. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Tightly bind RGB output to DCThierry Reding2013-12-03
| | | | | | | | | | | | | Previously the association to a DC was done via the encoder's .crtc field. That has the disadvantage that when an encoder is detached from its CRTC, that field is set to NULL, leading to situations where it is impossible to access the DC registers required by the RGB output. However, the coupling between DC and RGB output is really fixed on Tegra. While they can be detached logically in DRM, the RGB output can rely on the DC's existence. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Allocate resources at probe timeThierry Reding2013-10-31
| | | | | | | | | | | | | | | Since the .init() and .exit() functions are executed whenever the DRM driver is loaded or unloaded, care must be taken not to use them for resource allocation. Otherwise deferred probing cannot be used, since the .init() and .exit() are not run at probe time. Similarly the code that frees resources must be run at .remove() time. If it is run from the .exit() function, it can release resources multiple times. To handle this more consistently, rename the tegra_output_parse_dt() function to tegra_output_probe() and introduce tegra_output_remove() which can be used to free output-related resources. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Move driver to DRM treeThierry Reding2013-10-31
| | | | | | | In order to make subsystem-wide changes easier, move the Tegra DRM driver back into the DRM tree. Signed-off-by: Thierry Reding <treding@nvidia.com>
* drm/tegra: Move drm to live under host1xTerje Bergstrom2013-04-22
| | | | | | | | | | | Make drm part of host1x driver. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
* drm: Add NVIDIA Tegra20 supportThierry Reding2012-11-20
This commit adds a KMS driver for the Tegra20 SoC. This includes basic support for host1x and the two display controllers found on the Tegra20 SoC. Each display controller can drive a separate RGB/LVDS output. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Mark Zhang <markz@nvidia.com> Reviewed-by: Mark Zhang <markz@nvidia.com> Tested-by: Mark Zhang <markz@nvidia.com> Tested-and-acked-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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