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Contrary to the imx233, the stmp37xx lcdif doesn't know how to properly recover from underflow and things are worse because of the errata which makes the lcdif not clear the fifo. Workaround this by detecting underflow and taking action: stop dotclk mode (will clear fifo) and schedule next frame. The dma transfers now write the ctrl register as part of the PIO writes, making the code simpler. Change-Id: I15abc24567f322cd03bf2ef7903094f7f0178427 |
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