spi: mux: set ctlr->bits_per_word_mask

[ Upstream commit c8bd922d924bb4ab6c6c488310157d1a27996f31 ]

Like other SPI controller flags, bits_per_word_mask may be used by a
peripheral driver, so it needs to reflect the capabilities of the
underlying controller.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240708-spi-mux-fix-v1-3-6c8845193128@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/spi/spi-mux.c b/drivers/spi/spi-mux.c
index 031b5795d1060da4c2cb88ba1e64e5e7b296c4d6..a8bb07b38ec64d4fd98539ed1d5b364f7f468e55 100644 (file)
--- a/drivers/spi/spi-mux.c
+++ b/drivers/spi/spi-mux.c
@@ -156,6 +156,7 @@ static int spi_mux_probe(struct spi_device *spi)
        /* supported modes are the same as our parent's */
        ctlr->mode_bits = spi->controller->mode_bits;
        ctlr->flags = spi->controller->flags;
+       ctlr->bits_per_word_mask = spi->controller->bits_per_word_mask;
        ctlr->transfer_one_message = spi_mux_transfer_one_message;
        ctlr->setup = spi_mux_setup;
        ctlr->num_chipselect = mux_control_states(priv->mux);