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The functionality of drm_bridge_connector_enable_hpd() and
drm_bridge_connector_disable_hpd() is provided automatically by the
drm_kms_poll helpers. Stop calling these functions manually.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
[narmstrong: removed now unused kms var in dcss_dev_suspend|resume()]
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221102180705.459294-5-dmitry.baryshkov@linaro.org
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Use the EXPORT_GPL_DEV_PM_OPS() and pm_ptr() macros to handle the PM
callbacks.
These macros allow the PM functions to be automatically dropped by the
compiler when CONFIG_PM is disabled, without having to use #ifdef
guards.
This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Tested-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221129191733.137897-11-paul@crapouillou.net
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In dcss_dev_create() and dcss_dev_destroy(), we should call of_node_put()
in fail path or before the dcss's destroy as of_graph_get_port_by_id() has
increased the refcount.
Fixes: 9021c317b770 ("drm/imx: Add initial support for DCSS on iMX8MQ")
Signed-off-by: Liang He <windhl@126.com>
Reviewed-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220714081337.374761-1-windhl@126.com
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Make use of drm_bridge_connector API to have the connector initialized by the
display controller.
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200731081836.3048-4-laurentiu.palcu@oss.nxp.com
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This adds initial support for iMX8MQ's Display Controller Subsystem (DCSS).
Some of its capabilities include:
* 4K@60fps;
* HDR10;
* one graphics and 2 video pipelines;
* on-the-fly decompression of compressed video and graphics;
The reference manual can be found here:
https://www.nxp.com/webapp/Download?colCode=IMX8MDQLQRM
The current patch adds only basic functionality: one primary plane for
graphics, linear, tiled and super-tiled buffers support (no graphics
decompression yet), no HDR10 and no video planes.
Video planes support and HDR10 will be added in subsequent patches once
per-plane de-gamma/CSC/gamma support is in.
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200731081836.3048-3-laurentiu.palcu@oss.nxp.com
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