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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-12-07 14:07:55 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-12-21 09:23:45 +0100 |
| commit | abf221d2f51b8ce7b9959a8953f880a8b0a1400d (patch) | |
| tree | a894dff1b03d8d9a526a0f57a378a60fab1b0984 /drivers/gpio/gpio-sch.c | |
| parent | gpio: gpio-omap: Revert deferred wakeup quirk handling for regressions (diff) | |
| download | linux-abf221d2f51b8ce7b9959a8953f880a8b0a1400d.tar.xz linux-abf221d2f51b8ce7b9959a8953f880a8b0a1400d.zip | |
gpio: max7301: fix driver for use with CONFIG_VMAP_STACK
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")
Cc: <stable@vger.kernel.org>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-sch.c')
0 files changed, 0 insertions, 0 deletions