lantiq: Add a rewritten version of the SPI driver

The new driver provides a few improvements over the old one:
- Separate compatible strings per SoC type (this allows removing some
  hardcoded of_device_is_compatible() checks)
- It does not rely upon spi-bitbang anymore
- chip-selects are numbered as in the datasheet (= starting at 1 instead
  of 0)

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

SVN-Revision: 48292
This commit is contained in:
Felix Fietkau 2016-01-17 19:55:55 +00:00
parent af857db692
commit 5985c56ec6