spi: ath79: set number of chipselect lines

All chipsets from AR7100 up to QCA9563 have three dedicated chipselect
lines for the integrated SPI controller. Set the number of chipselect
lines available on the controller to this value.

Signed-off-by: David Bauer <mail@david-bauer.net>
Link: https://lore.kernel.org/r/20210522074453.39299-2-mail@david-bauer.net
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c
index 497d5c028496a6534146430ba111728f3f52071d..d1e287d2d9cdc438aff9d84e24be5410a2f5cfc1 100644 (file)
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -153,6 +153,7 @@ static int ath79_spi_probe(struct platform_device *pdev)
        master->use_gpio_descriptors = true;
        master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32);
        master->flags = SPI_MASTER_GPIO_SS;
+       master->num_chipselect = 3;
 
        sp->bitbang.master = master;
        sp->bitbang.chipselect = ath79_spi_chipselect;