drm: rcar-du: kms: Initialize CMM instances

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Implement device tree parsing to collect the available CMM instances
described by the 'renesas,cmms' property. Associate CMMs with CRTCs and
store a mask of active CMMs in the DU group for later enablement.

Enforce the probe and suspend/resume ordering of DU and CMM by creating
a stateless device link between the two.

Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

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Jacopo Mondi 2019-10-16 10:55:44 +02:00 • committed by Laurent Pinchart

parent e08e934d6c

commit 8de707aeb4

5 changed files with 88 additions and 0 deletions

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6

drivers/gpu/drm/rcar-du/rcar_du_crtc.c

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2

drivers/gpu/drm/rcar-du/rcar_du_crtc.h

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2

drivers/gpu/drm/rcar-du/rcar_du_drv.h

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2

drivers/gpu/drm/rcar-du/rcar_du_group.h

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76

drivers/gpu/drm/rcar-du/rcar_du_kms.c

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