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| author | Stefan Eichenberger <stefan.eichenberger@toradex.com> | 2023-09-11 10:16:50 +0200 |
|---|---|---|
| committer | Stefan Eichenberger <eichest@gmail.com> | 2023-09-27 09:10:51 +0200 |
| commit | 946d7e24107a26c6f27ce9c5a687246844d449d6 (patch) | |
| tree | 4ae99e5a0918b9ab829b9b8a1595bbeef48632e3 /arch/arm64/boot | |
| parent | 49e4130e2197bd79e232faa746a449d167335778 (diff) | |
gpu: drm: imx: lcdif-mux: enable the clk_pixel when the driver binds
Make sure to enable the clk_pixel clock during bind so that all other
driver in the display pipeline can rely on it. Without this change we
might see ghosting effects in around 10% of the reboots because
something in the display pipeline runs out of sync. With this change we
don't disable the clk_pixel when the display is turned off so this might
increase the power consumption in standby mode a bit. However, it would
require some bigger changes in the display pipeline to allow this.
Upstream-Status: Inappropriate [other]
The dpu is currently only supported in the downstream kernel. A fix will
most likely be applied by NXP to the downstream kernel. A similar patch
was provided by them but it breaks the DPMS off/standby mode. See this
ticket for more information:
https://support.nxp.com/s/case/5002p00002vUMOL/ghosting-effect-on-parallel-rgb-interface
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Diffstat (limited to 'arch/arm64/boot')
0 files changed, 0 insertions, 0 deletions