[PATCH v5 2/2] drm: tilcdc: clear the sync lost bit in crtc isr

2016-11-01 Thread Jyri Sarha
On 10/31/16 16:19, Bartosz Golaszewski wrote: > The frame synchronization error happens when the DMA engine attempts > to read what it believes to be the first word of the video buffer but > it cannot be recognized as such or when the LCDC is starved of data > due to insufficient bandwidth of the s

[PATCH v5 2/2] drm: tilcdc: clear the sync lost bit in crtc isr

2016-11-01 Thread Jyri Sarha
On 10/31/16 16:19, Bartosz Golaszewski wrote: > The frame synchronization error happens when the DMA engine attempts > to read what it believes to be the first word of the video buffer but > it cannot be recognized as such or when the LCDC is starved of data > due to insufficient bandwidth of the s

[PATCH v5 2/2] drm: tilcdc: clear the sync lost bit in crtc isr

2016-10-31 Thread Karl Beldan
Hi, On Mon, Oct 31, 2016 at 2:19 PM, Bartosz Golaszewski wrote: > The frame synchronization error happens when the DMA engine attempts > to read what it believes to be the first word of the video buffer but > it cannot be recognized as such or when the LCDC is starved of data > due to insufficien

[PATCH v5 2/2] drm: tilcdc: clear the sync lost bit in crtc isr

2016-10-31 Thread Bartosz Golaszewski
The frame synchronization error happens when the DMA engine attempts to read what it believes to be the first word of the video buffer but it cannot be recognized as such or when the LCDC is starved of data due to insufficient bandwidth of the system interconnect. On some SoCs (notably: da850) the