Cc Alan and Andy. On Sat, Dec 16, 2017 at 04:50:04PM +0100, Kristian Beilke wrote: > Dear all, > > I am trying to get the cameras in a Lenovo IdeaPad Miix 320 (Atom > x5-Z8350 BayTrail) to work. The front camera is an ov2680. With kernel > 4.14.4 and 4.15rc3 I see the following dmesg output: > > > [ 21.469907] ov2680: module is from the staging directory, the quality > is unknown, you have been warned. > [ 21.492774] ov2680 i2c-OVTI2680:00: gmin: initializing atomisp module > subdev data.PMIC ID 1 > [ 21.492891] acpi OVTI2680:00: Failed to find gmin variable > OVTI2680:00_CamClk > [ 21.492974] acpi OVTI2680:00: Failed to find gmin variable > OVTI2680:00_ClkSrc > [ 21.493090] acpi OVTI2680:00: Failed to find gmin variable > OVTI2680:00_CsiPort > [ 21.493209] acpi OVTI2680:00: Failed to find gmin variable > OVTI2680:00_CsiLanes > [ 21.493511] ov2680 i2c-OVTI2680:00: i2c-OVTI2680:00 supply V1P8SX not > found, using dummy regulator > [ 21.493550] ov2680 i2c-OVTI2680:00: i2c-OVTI2680:00 supply V2P8SX not > found, using dummy regulator > [ 21.493569] ov2680 i2c-OVTI2680:00: i2c-OVTI2680:00 supply V1P2A not > found, using dummy regulator > [ 21.493585] ov2680 i2c-OVTI2680:00: i2c-OVTI2680:00 supply VPROG4B > not found, using dummy regulator > [ 21.568134] ov2680 i2c-OVTI2680:00: camera pdata: port: 0 lanes: 1 > order: 00000002 > [ 21.568257] ov2680 i2c-OVTI2680:00: read from offset 0x300a error -121 > [ 21.568265] ov2680 i2c-OVTI2680:00: sensor_id_high = 0xffff > [ 21.568269] ov2680 i2c-OVTI2680:00: ov2680_detect err s_config. > [ 21.568291] ov2680 i2c-OVTI2680:00: sensor power-gating failed > > Afterwards I do not get a camera device. > > Am I missing some firmware or dependency? Can I somehow help to improve > the driver? > > Regards > > Kristian > -- Sakari Ailus e-mail: sakari.ailus@xxxxxx