[PATCH] spi: cs42l43: Drop cs35l56 SPI speed down to 11MHz

[Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>]

Some internals of the cs35l56 can only support SPI speeds of up to
11MHz. Whilst some use-cases could support higher rates, keep things
simple by dropping the SPI speed down to this avoid any potential
issues.

Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20240607103423.4159834-1-ckeepax@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>

diff --git a/drivers/spi/spi-cs42l43.c b/drivers/spi/spi-cs42l43.c
index 902a0734cc36..8b618ef0f711 100644
--- a/drivers/spi/spi-cs42l43.c
+++ b/drivers/spi/spi-cs42l43.c
@@ -54,7 +54,7 @@ static const struct software_node ampr = {
 
 static struct spi_board_info ampl_info = {
 	.modalias		= "cs35l56",
-	.max_speed_hz		= 20 * HZ_PER_MHZ,
+	.max_speed_hz		= 11 * HZ_PER_MHZ,
 	.chip_select		= 0,
 	.mode			= SPI_MODE_0,
 	.swnode			= &ampl,
@@ -62,7 +62,7 @@ static struct spi_board_info ampl_info = {
 
 static struct spi_board_info ampr_info = {
 	.modalias		= "cs35l56",
-	.max_speed_hz		= 20 * HZ_PER_MHZ,
+	.max_speed_hz		= 11 * HZ_PER_MHZ,
 	.chip_select		= 1,
 	.mode			= SPI_MODE_0,
 	.swnode			= &ampr,