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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-12-07 13:07:55 +0000 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2019-02-11 17:54:30 +0000 |
| commit | 106fc089cca4b77756c58d23078e32b92005659d (patch) | |
| tree | 3b03a8b37dec0c58631600416f18d0eae379b1a1 /net | |
| parent | abc60edcfc87771ff244763d4d19c67766f5dd0f (diff) | |
gpio: max7301: fix driver for use with CONFIG_VMAP_STACK
commit abf221d2f51b8ce7b9959a8953f880a8b0a1400d upstream.
spi_read() and spi_write() require DMA-safe memory. When
CONFIG_VMAP_STACK is selected, those functions cannot be used
with buffers on stack.
This patch replaces calls to spi_read() and spi_write() by
spi_write_then_read() which doesn't require DMA-safe buffers.
Fixes: 0c36ec314735 ("gpio: gpio driver for max7301 SPI GPIO expander")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions