spi: pxa2xx: Introduce special type for Merrifield SPIs

Browse source

Intel Merrifield SPI is actually more closer to PXA3xx. It has extended FIFO
(32 bytes) and additional registers to get or set FIFO thresholds.

Introduce new type for Intel Merrifield SPI host controllers and handle bigger
FIFO size.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210510124134.24638-15-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

...

This commit is contained in:

Andy Shevchenko 2021-05-10 15:41:34 +03:00 • committed by Mark Brown

parent eca32c3974

commit 3fdb59cf10

No known key found for this signature in database

GPG key ID: 24D68B725D5487D0

3 changed files with 46 additions and 4 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

2

drivers/spi/spi-pxa2xx-pci.c

View file

32

drivers/spi/spi-pxa2xx.c

View file

16

include/linux/pxa2xx_ssp.h

View file