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Dram hang could happen in the steps below: 1. start capture/compression 2. out-of-lock watchdog raise irq because of res-change. 3. aspeed_video_irq_res_change do clk-off At step3, capture/compression could be not accomplished yet. If clk-off in the middle of video operation, dram controller could hang at ast2500. Use reset rather than clk-off/on to avoid this problem. Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org> |
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| aspeed-video.c | ||
| Kconfig | ||
| Makefile | ||