linux_dsm_epyc7002/drivers/gpu
Laurent Pinchart 31cd7afa30 drm/omap: panels: Don't modify fixed timings
Panels drivers store their timings in a device data structure field that
is initialized at probe time, either from hardcoded values or from
firmware-supplied values. Those timings are then reported through the
.get_timings() operation to construct the panel display mode.

The panel timings are further modified by the .set_timings() operation,
which is called with the timings retrieved by .get_timings(), and
mangled by .check_timings(). The latter potentially adjusts the pixel
clock only.

Conceptually, modifying the panel timings is wrong, as the timings are
an intrinsic property of the panel and should thus be fixed.
Furthermore, modifying them this way at runtime can result in display
modes reported to userspace varying between calls, which is also wrong.

There's no actual need to store the mangled pixel clock value in the
timings. Don't modify the panel timings in the .set_timings() operation,
just forward it to the previous device in the display pipeline.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2018-09-03 16:13:30 +03:00
..
drm drm/omap: panels: Don't modify fixed timings 2018-09-03 16:13:30 +03:00
host1x gpu: host1x: Check whether size of unpin isn't 0 2018-07-09 10:31:30 +02:00
ipu-v3 drm pull for 4.19-rc1 2018-08-15 17:39:07 -07:00
vga vga_switcheroo: set audio client id according to bound GPU id 2018-07-17 11:12:00 +02:00
Makefile