Commit Graph

2 Commits

Author SHA1 Message Date
Maxime Ripard
7f3364784b drm/imx-dc: Switch to drm_atomic_get_new_crtc_state()
The imx-dc atomic_check implementation uses the deprecated
drm_atomic_get_existing_crtc_state() helper.

This hook is called as part of the global atomic_check, thus before the
states are swapped. The existing state thus points to the new state, and
we can use drm_atomic_get_new_crtc_state() instead.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Liu Ying <victor.liu@nxp.com>
Link: https://lore.kernel.org/r/20250930-drm-no-more-existing-state-v5-17-eeb9e1287907@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-10-06 13:59:12 +02:00
Liu Ying
711a3b8783 drm/imx: Add i.MX8qxp Display Controller KMS
i.MX8qxp Display Controller(DC) is comprised of three main components that
include a blit engine for 2D graphics accelerations, display controller for
display output processing, as well as a command sequencer.  Add kernel
mode setting support for the display controller part with two CRTCs and
two primary planes(backed by FetchLayer and FetchWarp respectively).  The
registers of the display controller are accessed without command sequencer
involved, instead just by using CPU.  The command sequencer is supposed to
be used by the blit engine.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Link: https://lore.kernel.org/r/20250414035028.1561475-13-victor.liu@nxp.com
2025-05-14 15:11:31 +08:00