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| author | Serge Semin <fancer.lancer@gmail.com> | 2026-06-19 17:42:44 +0300 |
|---|---|---|
| committer | Serge Semin <fancer.lancer@gmail.com> | 2026-08-06 03:24:25 +0300 |
| commit | 5a56c3197471868f0985796d07a31f33a38c49cd (patch) | |
| tree | 9050e96cffd0ee18dbd04459f9b27735b35b5872 | |
| parent | 2d9925b2c38d92fc5a9b95937564103cf391088b (diff) | |
| download | linux-5a56c3197471868f0985796d07a31f33a38c49cd.tar.gz linux-5a56c3197471868f0985796d07a31f33a38c49cd.zip | |
spi: dw: Inform core subsystem with a max number of native CS
The driver has been capable of auto-detecting the number of native CS
since commit e164be7e1e93 ("spi: dw: Add a number of native CS
auto-detection") unless the glue-code has the actual number of the CS
defined. Let's use that data to inform the SPI core about that. Thus it
will be able to perform additional sanity checks on the GPIO CS
initialization procedure. It will be especially useful seeing the driver
sets the SPI_CONTROLLER_GPIO_SS flag requiring the native CS being enabled
in the GPIO-based CS case.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
| -rw-r--r-- | drivers/spi/spi-dw-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/spi/spi-dw-core.c b/drivers/spi/spi-dw-core.c index b47637888c5c6..fe94fa134866e 100644 --- a/drivers/spi/spi-dw-core.c +++ b/drivers/spi/spi-dw-core.c @@ -960,6 +960,7 @@ int dw_spi_add_controller(struct device *dev, struct dw_spi *dws) ctlr->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 16); ctlr->bus_num = dws->bus_num; ctlr->num_chipselect = dws->num_cs; + ctlr->max_native_cs = dws->num_cs; ctlr->setup = dw_spi_setup; ctlr->cleanup = dw_spi_cleanup; ctlr->transfer_one = dw_spi_transfer_one; |