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* drm: rcar-du: Add probe deferral debug messagesLaurent Pinchart2016-02-23
| | | | | | | Print a message when the HDMI I2C slave encoder can't be found to help debugging probe deferral issues. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: lvds: Add R-Car Gen3 supportKoji Matsuoka2016-02-23
| | | | | | | | The LVDS encoder differs slightly in Gen3 SoCs in its PLL configuration. Add support for the Gen3 LVDS PLL parameters and startup procedure. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: lvds: Rename PLLEN bit to PLLONLaurent Pinchart2016-02-23
| | | | | | The bit is named PLLON in the datasheet, rename it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: lvds: Fix PLL frequency-related configurationLaurent Pinchart2016-02-23
| | | | | | The frequency checks don't match the datasheet, fix them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: lvds: Avoid duplication of clock clamp codeLaurent Pinchart2016-02-23
| | | | | | Replace the duplicate code by a single central function. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Add R8A7795 device supportLaurent Pinchart2016-02-23
| | | | | | | | Document the R8A7795-specific DT bindings and support them in the driver. The HDMI and LVDS outputs are currently not supported. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Output the DISP signal on the ODDF pinLaurent Pinchart2016-02-23
| | | | | | | | | | | The ODDF signal, output by default on the ODDF pin, isn't used on any board supported in the kernel. As the Gen3 Salvator-X board uses the ODDF pin as a DISP signal, hardcode that configuration in the driver. Use of the ODDF signal will be implemented later through proper DT-based configuration of the DU pins. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Output the DISP signal on the DISP pinLaurent Pinchart2016-02-23
| | | | | | | | The DE signal is currently configured to be identical to the DISP signal and is used for the same purpose. To make it clearer that the DISP pin outputs the DISP signal, select it explicitly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Support up to 4 CRTCsKoji Matsuoka2016-02-23
| | | | | | | The Gen3 R8A7795 DU has 4 CRTCs, support them all. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Drop LVDS double dependency on OFLaurent Pinchart2016-02-23
| | | | | | | LVDS support depends on DRM_RCAR_DU which already depends on OF. Drop the explicit dependency. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Enable compilation on ARM64Koji Matsuoka2016-02-23
| | | | | | | | The R8A7795 SoC is ARM64-based and include a DU. Enable driver compilation on ARM64. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Fix compile warning on 64-bit platformsKoji Matsuoka2016-02-23
| | | | | | | Use %tu instead of %u to print difference between pointers. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Expose the VSP1 compositor through KMS planesLaurent Pinchart2016-02-23
| | | | | | | | On R-Car Gen3 SoCs the DU lost its ability to access memory directly and needs to work in conjunction with the VSP to do so. This commit handles the VSP internally to hide it from the user. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Move plane allocator to rcar_du_plane.cLaurent Pinchart2016-02-19
| | | | | | | | The plane allocator is specific to DU planes and won't be used for VSP-based planes, move it with the rest of the DU planes code where it belongs. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Restart the DU group when a plane source changesLaurent Pinchart2016-02-19
| | | | | | | | | | Plane sources are configured by the VSPS bit in the PnDDCR4 register. Although the datasheet states that the bit is updated during vertical blanking, it seems that updates only occur when the DU group is held in reset through the DSYSR.DRES bit. Restart the group if the source changes. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Add VSP1 compositor supportLaurent Pinchart2016-02-19
| | | | | | | Configure the plane source at plane setup time to source frames from memory or from the VSP1. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Add VSP1 support to the planes allocatorLaurent Pinchart2016-02-19
| | | | | | | | | | | | The R8A7790 DU can source frames directly from the VSP1 devices VSPD0 and VSPD1. VSPD0 feeds DU0/1 plane 0, and VSPD1 feeds either DU2 plane 0 or DU0/1 plane 1. Allocate the correct fixed plane when sourcing frames from VSPD0 or VSPD1, and allocate planes in reverse index order otherwise to ensure maximum availability of planes 0 and 1. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Refactor plane setupLaurent Pinchart2016-02-19
| | | | | | | | Rename plane setup functions using more explicit names, and use local variables to store intermediate values to increase readability. This also prepares for VSP compositor support. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Compute plane DDCR4 register value directlyLaurent Pinchart2016-02-19
| | | | | | | There's no need for a read-modify-write pattern, all register bits can be set explicitly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Don't update planes on disabled CRTCsLaurent Pinchart2016-02-19
| | | | | | | | | A disabled CRTC can't display planes, the driver shouldn't try to configure it when updating planes. The DRM core will store the plane state for us, and the plane will be configured appropriately the next time the CRTC is enabled. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Remove local CRTC enabled stateLaurent Pinchart2016-02-19
| | | | | | | | | | The atomic framework guarantees that the CRTC enable and disable functions will only be called when needed, there's no need to duplicate the CRTC state check. By replacing the local CRTC enabled state check at resume time with the CRTC active state we can remove the local CRTC enabled state altogether. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
* drm: rcar-du: Perform initialization/cleanup at probe/remove timeLaurent Pinchart2016-02-19
| | | | | | | | | | | | | The drm driver .load() operation is prone to race conditions as it initializes the driver after registering the device nodes. Its usage is deprecated, inline it in the probe function and call drm_dev_alloc() and drm_dev_register() explicitly. For consistency inline the .unload() handler in the remove function as well. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* Merge remote-tracking branch 'linuxtv/vsp1' into HEADLaurent Pinchart2016-02-19
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| * [media] vsp1_drm.h: add missing prototypesMauro Carvalho Chehab2016-02-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/media/platform/vsp1/vsp1_drm.c:47:5: warning: no previous prototype for 'vsp1_du_init' [-Wmissing-prototypes] int vsp1_du_init(struct device *dev) ^ drivers/media/platform/vsp1/vsp1_drm.c:76:5: warning: no previous prototype for 'vsp1_du_setup_lif' [-Wmissing-prototypes] int vsp1_du_setup_lif(struct device *dev, unsigned int width, ^ drivers/media/platform/vsp1/vsp1_drm.c:221:6: warning: no previous prototype for 'vsp1_du_atomic_begin' [-Wmissing-prototypes] void vsp1_du_atomic_begin(struct device *dev) ^ drivers/media/platform/vsp1/vsp1_drm.c:273:5: warning: no previous prototype for 'vsp1_du_atomic_update' [-Wmissing-prototypes] int vsp1_du_atomic_update(struct device *dev, unsigned int rpf_index, ^ drivers/media/platform/vsp1/vsp1_drm.c:451:6: warning: no previous prototype for 'vsp1_du_atomic_flush' [-Wmissing-prototypes] void vsp1_du_atomic_flush(struct device *dev) ^ Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Configure device based on IP versionLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | | | The IP version number carries enough information to identify the exact device instance features. Drop the related DT properties and use the IP version instead. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Add display list supportTakashi Saito2016-02-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Display lists contain lists of registers and associated values to be applied atomically by the hardware. They lower the pressure on interrupt processing delays when reprogramming the device as settings can be prepared well in advance and queued to the hardware without waiting for the end of the current frame. Display list support is currently limited to the DRM pipeline. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Add support for the R-Car Gen3 VSP2Laurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | Add DT compatible strings for the VSP2 instances found in the R-Car Gen3 SoCs and support them in the vsp1 driver. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Implement atomic update for the DRM driverLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | | | | | | | | | | | Add two API functions named vsp1_du_atomic_begin() and vsp1_du_atomic_flush() to signal the start and end of an atomic update. The vsp1_du_setup_rpf() function is renamed to vsp1_du_atomic_update() for consistency. With this new API, the driver will reprogram all modified inputs atomically before restarting the video stream. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Disconnect unused RPFs from the DRM pipelineLaurent Pinchart2016-02-19
| | | | | | | | | | Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Add VSP+DU supportLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | | | Implement internal control of the VSP pipeline to be used by the DU DRM/KMS driver when using the VSP as an internal composer handled through DRM/KMS only. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Don't validate links when the userspace API is disabledLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | | | As the pipeline is configured internally by the driver when the userspace API is disabled its configuration can be trusted and link validation isn't needed. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Set the alpha value manually in RPF and WPF s_stream handlersLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RPF and WPF alpha values are set through V4L2 controls and applied when starting the video stream by a call to v4l2_ctrl_handler_setup(). As that function uses the control handler mutex it can't be called in interrupt context, where the VSP+DU pipeline handler might need to reconfigure the pipeline. Set the alpha value manually in the RPF and WPF s_stream handler to ensure that the hardware is properly configured even when controlled without the userspace API. If the userspace API is enabled protect that with the control lock to avoid race conditions with userspace. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Make pipeline inputs array index by RPF indexLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The pipeline inputs array stores pointers to all RPFs contained in the pipeline. It's currently indexed contiguously by adding RPFs in the order they are found during graph walk. This can't easily support dynamic addition and removal of RPFs while streaming, which will be required for combined VSP+DU support. Make the array indexed by RPF index instead and skip NULL elements when iterating over RPFs. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Make the userspace API optionalLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | | | The R-Car Gen3 SoCs include VSP instances dedicated to the DU that will be controlled entirely by the rcar-du-drm driver through the KMS API. To support that use case make the userspace V4L2 API optional. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Move format info to vsp1_pipe.cLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | Format information and the related helper function are not specific to the V4L2 API, move them from vsp1_video.c to vsp1_pipe.c. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Make the BRU optionalLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | | | Not all VSP instances have a BRU on R-Car Gen3, make it optional. Set the feature unconditionally for now, this will be fixed when adding Gen3 support. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Make number of BRU inputs configurableLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | | | | | | | | | The R-Car Gen3 family has 5-inputs BRUs, support them by making the number of BRU inputs configurable. As the driver assumes that the number of BRU inputs is equal to the number of RPFs, replace the BRU_MAX_INPUTS macro with VSP1_MAX_RPF to make the assumption apparent. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Move entity route setup function to vsp1_entity.cLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | The function will be used by the DU code, move it out of vsp1_video.c. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Remove unused module read functionsLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | Several module read functions are not used, remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Set the SRU CTRL0 register when starting the streamLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | | | | | | | Commit 58f896d859ce ("[media] v4l: vsp1: sru: Make the intensity controllable during streaming") refactored the stream start code and removed the SRU CTRL0 register write by mistake. Add it back. Fixes: 58f896d859ce ("[media] v4l: vsp1: sru: Make the intensity controllable during streaming") Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Fix typo in VI6_DISP_IRQ_STA_DST register bit nameLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | Rename the VI6_DISP_IRQ_STA_DSE register bit to VI6_DISP_IRQ_STA_DST to fix a typo and match the datasheet. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Document the vsp1_pipeline structureLaurent Pinchart2016-02-19
| | | | | | | | | | Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Extract link creation to separate functionLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | Link creation will be handled differently for the DU pipeline. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Reuse local variable instead of recomputing itLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | No need to waste CPU cycles when the value we need is already available. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Extract pipeline initialization code into a functionLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | The code will be reused outside of vsp1_video.c. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Rename video pipeline functions to use vsp1_video prefixLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | Those functions are specific to video nodes, rename them for consistency. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Split pipeline management code from vsp1_video.cLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | The code will be used to control the vsp1 driver from the DU driver without using video nodes. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Decouple pipeline end of frame processing from vsp1_videoLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | | | | | To make the pipeline structure and operations usable without video devices the frame end processing must be decoupled from struct vsp1_video. Implement this by calling the video frame end function indirectly through a function pointer in struct vsp1_pipeline. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Remove struct vsp1_pipeline num_video fieldLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | The field is always equal to the num_inputs field plus one, remove the duplicate. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] v4l: vsp1: Move vsp1_video pointer from vsp1_entity to vsp1_rwpfLaurent Pinchart2016-02-19
| | | | | | | | | | | | | | | | Only RPFs and WPFs can be associated with video nodes, don't waste memory by storing the video pointer in all entities. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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