Imx477 long exposure control #4150
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The V4L2_CID_EXPOSURE_AUTO_PRIORITY was used to let the sensor control frame length (effectively framerate) based on the requested exposure time requested. Remove this feature as it is never used, and goes against how V4L2 likes to handle exposure and vblank controls. Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
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Feb 16, 2021
Add support for very long exposures by using the exposure multiplier register. Userland does not need to pass any additional controls to enable long exposures, it simply requests a larger vblank to extend the exposure control range appropriately. Currently, since hblank is fixed, a maximum of approximately 124 seconds of exposure time can be used. In a future change, hblank could also be controlled in userland to give over 200 seconds of exposure time. Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
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kernel: PiFi DAC overlays See: raspberrypi/linux#4154 kernel: staging: rpivid: Fix crash when CMA alloc fails See: raspberrypi/linux#4152 kernel: Imx477 long exposure control See: raspberrypi/linux#4150 kernel: configs: Change CONFIG_BLK_DEV_NVME=y for 2711 See: raspberrypi/linux#4164 kernel: Some fixes to make imx290/imx327 exposure and vblank updates work correctly See: raspberrypi/linux#4153 kernel: KMS VGA666 overlay See: raspberrypi/linux#4141 kernel: gpio-fsm: Fix shutdown timeout handling kernel: configs: Add various missing IPV6 modules See: raspberrypi/linux#4144
popcornmix
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kernel: PiFi DAC overlays See: raspberrypi/linux#4154 kernel: staging: rpivid: Fix crash when CMA alloc fails See: raspberrypi/linux#4152 kernel: Imx477 long exposure control See: raspberrypi/linux#4150 kernel: configs: Change CONFIG_BLK_DEV_NVME=y for 2711 See: raspberrypi/linux#4164 kernel: Some fixes to make imx290/imx327 exposure and vblank updates work correctly See: raspberrypi/linux#4153 kernel: KMS VGA666 overlay See: raspberrypi/linux#4141 kernel: gpio-fsm: Fix shutdown timeout handling kernel: configs: Add various missing IPV6 modules See: raspberrypi/linux#4144
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