dts: rp1: Disable DMA usage for UART0 #6371
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Some recent DMA changes have led to data loss in UART0 on Pi 5. It also seems that even prior to these changes there was a problem with aborted transfers. As this is the only RP1 UART configured for DMA, it is better to remove the DMA usage until it is shown to be reliable. Link: raspberrypi#6365 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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See: raspberrypi/linux#6371 kernel: drm: vc4: Fix interpolate bit for nearest neighbour filter See: raspberrypi/linux#6364 kernel: drm: panel: ili9881: Correct symmetry on enable/disable return codes See: raspberrypi/linux#6360 kernel: vc04_services: codec: Allocate the max number of buffers on the VPU See: raspberrypi/linux#6348 kernel: ASoC: add the HiFiBerry 8-channel ADC soundcard See: raspberrypi/linux#6353
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See: raspberrypi/linux#6371 kernel: drm: vc4: Fix interpolate bit for nearest neighbour filter See: raspberrypi/linux#6364 kernel: drm: panel: ili9881: Correct symmetry on enable/disable return codes See: raspberrypi/linux#6360 kernel: vc04_services: codec: Allocate the max number of buffers on the VPU See: raspberrypi/linux#6348 kernel: ASoC: add the HiFiBerry 8-channel ADC soundcard See: raspberrypi/linux#6353
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Some recent DMA changes have led to data loss in UART0 on Pi 5. It also seems that even prior to these changes there was a problem with aborted transfers.
As this is the only RP1 UART configured for DMA, it is better to remove the DMA usage until it is shown to be reliable.
Link: #6365