diff options
| author | Chris Packham <chris.packham@alliedtelesis.co.nz> | 2019-11-07 05:42:35 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-11-07 14:11:18 +0100 |
| commit | 05766050d5bd9af24dcaec6b29255a6f2b324543 (patch) | |
| tree | 4a13becaf069e37f8241de308126980d5a1c7068 | |
| parent | spi: bcm-qspi: Convert to use CS GPIO descriptors (diff) | |
| download | linux-05766050d5bd9af24dcaec6b29255a6f2b324543.tar.xz linux-05766050d5bd9af24dcaec6b29255a6f2b324543.zip | |
spi: spi-mem: fallback to using transfers when CS gpios are used
Devices with chip selects driven via GPIO are not compatible with the
spi-mem operations. Fallback to using standard spi transfers when the
device is connected with a gpio CS.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/r/20191107044235.4864-3-chris.packham@alliedtelesis.co.nz
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/spi/spi-mem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index 9f0fa9f3116d..e5a46f0eb93b 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -286,7 +286,7 @@ int spi_mem_exec_op(struct spi_mem *mem, const struct spi_mem_op *op) if (!spi_mem_internal_supports_op(mem, op)) return -ENOTSUPP; - if (ctlr->mem_ops) { + if (ctlr->mem_ops && !mem->spi->cs_gpiod) { ret = spi_mem_access_start(mem); if (ret) return ret; |