spi: spi-fsl-lpspi: limit PRESCALE bit in TCR register

Browse source

Referring to the errata ERR051608 of I.MX93, LPSPI TCR[PRESCALE]
can only be configured to be 0 or 1, other values are not valid
and will cause LPSPI to not work.

Add the prescale limitation for LPSPI in I.MX93. Other platforms
are not affected.

Signed-off-by: Carlos Song <carlos.song@nxp.com>
Link: https://patch.msgid.link/20240820070658.672127-1-carlos.song@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

...

This commit is contained in:

Carlos Song 2024-08-20 15:06:58 +08:00 • committed by Mark Brown

parent 57d5af2660

commit 783bf5d09f

No known key found for this signature in database

GPG key ID: 24D68B725D5487D0

1 changed files with 29 additions and 2 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

31

drivers/spi/spi-fsl-lpspi.c

View file