5.6.2.2.4. MAX96724

See also

MAX96724 Datasheet and Product Info

5.6.2.2.4.1. Devicetree

The associated device tree entry describes how the GMSL links, video pipes, and CSI ports should be configured. The max96724 node serves as the top-level parent for all of the devices in the SerDes chain: specifically, a serializer, and one image sensor. This node will be a child of the I2C bus to which it is connected.

Required properties:

MAX96724 Required Properties

Name	Type	Description
reg	u32	The I2C address of the deserializer.
compatible	string	This must be set to d3,max96724.
status	string	okay if the MAX96724 driver should probe, disabled otherwise.
reset-gpios	prop-encoded-array	Specifies the GPIO controller and pin that controls the MAX96724’s reset pin.

Optional properties:

MAX96724 Optional Properties

Name	Type	Description
vdd-supply	phandle	The voltage regulator that controls power to the MAX96724.
poc-supply	phandle	The voltage regulator that controls Power-over-Coax to the MAX96724’s serial links.

MAX96724 Optional Native Frame Synchronization Properties (sync generated by MAX96724)

Name	Type	Description
frame-sync-enable	empty	Enables native frame sync signal generation and forwarding.
frame-sync-pin	u32	There are two options: 0 for MFP0 or 1 for MFP7.
frame-sync-freq	u32	The desired sync signal frequency in Hz.
pclk-freq	u32	The PCLK frequency in Hz.
frame-sync-tx-id	u32	The GMSL GPIO ID to forward the sync signal on.
frame-sync-master	empty	Generate the sync signal locally on the deserializer. The absense of this property when frame sync is not enabled means the signal will be received from the FSYNC_BUS pin.

MAX96724 Optional External Frame Synchronization Properties (sync provided to MAX96724 on GPIO pin)

Name	Type	Description
frame-sync-ports	prop-encoded-array	An array of GPIO pins to receive and forward sync signals on. For example, a value of <3 4> will forward GPIO3 and GPIO4 to all serial links with transmitter IDs of 3 and 4, respectively.

5.6.2.2.4.1.1. csi

For initial-deskew-width, the following values are possible (each enum element’s index is incremented from the previous by 1):

enum max96724_initial_deskew_width {
     MAX96724_INIT_DESKEW_1x32UI = 0,
     MAX96724_INIT_DESKEW_2x32UI,
     MAX96724_INIT_DESKEW_3x32UI,
     MAX96724_INIT_DESKEW_4x32UI,
     MAX96724_INIT_DESKEW_5x32UI,
     MAX96724_INIT_DESKEW_6x32UI,
     MAX96724_INIT_DESKEW_7x32UI,
     MAX96724_INIT_DESKEW_8x32UI,
     MAX96724_INIT_DESKEW_WIDTH_MAX = MAX96724_INIT_DESKEW_8x32UI,
};