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| author | Mark Brown <broonie@kernel.org> | 2018-07-18 15:24:54 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-07-18 15:24:54 +0300 |
| commit | b86d77123c6e1ecc102aa49c2378999737092891 (patch) | |
| tree | 974a88da29c12bcd31dccbfcd6ea91d83a2b1e73 /drivers/spi | |
| parent | 5f8f80356eccfaae1db8a827626ae4fc2eb62831 (diff) | |
| parent | 62dbbae483b6452e688b8e26c4d024d484117697 (diff) | |
| download | linux-b86d77123c6e1ecc102aa49c2378999737092891.tar.xz | |
Merge tag 'spi-dw-set-cs' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-4.19
spi: dw: Allow custom set_cs_callback
Allow platform specific drivers to provide their own set_cs callback when
the IP integration requires it.
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-dw.c | 3 | ||||
| -rw-r--r-- | drivers/spi/spi-dw.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index f693bfe95ab9..0d8ccb8be5ec 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -505,6 +505,9 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws) master->dev.of_node = dev->of_node; master->flags = SPI_MASTER_GPIO_SS; + if (dws->set_cs) + master->set_cs = dws->set_cs; + /* Basic HW init */ spi_hw_init(dev, dws); diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h index 2cde2473b3e9..446013022849 100644 --- a/drivers/spi/spi-dw.h +++ b/drivers/spi/spi-dw.h @@ -112,6 +112,7 @@ struct dw_spi { u32 reg_io_width; /* DR I/O width in bytes */ u16 bus_num; u16 num_cs; /* supported slave numbers */ + void (*set_cs)(struct spi_device *spi, bool enable); /* Current message transfer state info */ size_t len; |