spi: Fixes for v4.19

Quite a few fixes for the Renesas drivers in here, plus a fix for the
Tegra driver and some documentation fixes for the recently added spi-mem
code.  The Tegra fix is relatively large but fairly straightforward and
mechanical, it runs on probe so it's been reasonably well covered in
-next testing.
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spi: spi-mem: Move the DMA-able constraint doc to the kerneldoc header

We'd better have that documented in the kerneldoc header, so that it's
exposed to the doc generated by Sphinx.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
1 file changed