Re: [PATCH v2] drm: lcdif: Set and enable FIFO Panic threshold

2022-11-03 Thread Liu Ying
On Tue, 2022-11-01 at 16:26 +0100, Marek Vasut wrote: > In case the LCDIFv3 is used to drive a 4k panel via i.MX8MP HDMI > bridge, > the LCDIFv3 becomes susceptible to FIFO underflows, these lead to > nasty > flicker of the image on the panel, or image being shifted by half > frame > horizontally e

[PATCH v2] drm: lcdif: Set and enable FIFO Panic threshold

2022-11-01 Thread Marek Vasut
In case the LCDIFv3 is used to drive a 4k panel via i.MX8MP HDMI bridge, the LCDIFv3 becomes susceptible to FIFO underflows, these lead to nasty flicker of the image on the panel, or image being shifted by half frame horizontally every second frame. The flicker can be easily triggered by running 3D