IMX415 support - rpi-6.12.y #6583
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Signed-off-by: Dave Stevenson <[email protected]>
Signed-off-by: Dave Stevenson <[email protected]>
This also requires that the ranges for the exposure control are updated. Signed-off-by: Dave Stevenson <[email protected]>
The control of HMAX documented in the datasheet is consistent with being in terms of a scaled INCK, being always 72MHz or 74.25MHz. It is NOT link frequency dependent, but the minimum value for HMAX is dictated by the link frequency. If PIXEL_RATE is defined as being 12 times the 72 or 74.25MHz, and all values are scaled down again when writing HMAX, then the numbers all work out regardless of INCK or link frequency. Retain an hmax_min (set to the same value as the previous fixed hmax register value) to set as the default value to avoid changing the behaviour for existing users. Signed-off-by: Dave Stevenson <[email protected]>
The link frequencies are equally valid in 2 or 4 lane modes, but they change the hmax_min value for the mode as the MIPI block has to have sufficient time to send the pixel data for each line. Remove the association with number of lanes, and add hmax_min configuration for both lane options. Signed-off-by: Dave Stevenson <[email protected]>
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Version of #6582 for 6.12.