media: qcom: camss: Add per-format BPL alignment helper

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Add camss_format_get_bpl_alignment(), a helper that returns the
bytes-per-line (BPL) alignment requirement for a given CAMSS format.

Different RAW Bayer packing schemes impose different BPL alignment
constraints (e.g. RAW10 requires multiples of 5 bytes, RAW12 multiples of
3 bytes, RAW14 multiples of 7 bytes, etc.). Centralizing this logic
makes the alignment rules explicit and avoids duplicating them across
the pipeline.

This will allow PIX paths and buffer preparation code to correctly
round up BPL values to hardware-required boundaries.

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>

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Loic Poulain 2026-03-13 20:51:50 +01:00 • committed by Bryan O'Donoghue

parent 5837c36e01

commit 91978c39ee

2 changed files with 15 additions and 0 deletions

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14

drivers/media/platform/qcom/camss/camss-format.c

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1

drivers/media/platform/qcom/camss/camss-format.h

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