spi: cadence-qspi: allow FIFO depth detection

Browse source

If FIFO depth DT property is provided, check it matches what hardware
reports and warn otherwise. Else, use hardware provided value.

Hardware exposes FIFO depth indirectly because
CQSPI_REG_SRAMPARTITION is partially read-only.

Move probe cqspi->ddata assignment prior to cqspi_of_get_pdata() call.

Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20240423-cdns-qspi-mbly-v4-1-3d2a7b535ad0@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>

...

This commit is contained in:

Théo Lebrun 2024-04-23 12:01:40 +02:00 • committed by Mark Brown

parent abba116f60

commit 3bf64a2b66

No known key found for this signature in database

GPG key ID: 24D68B725D5487D0

1 changed files with 30 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

37

drivers/spi/spi-cadence-quadspi.c

View file