The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 60980cf5b8c8cc9182e5e9dbb62cbfd345c54074 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024062416-gumdrop-tinfoil-9210@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 60980cf5b8c8cc9182e5e9dbb62cbfd345c54074 Mon Sep 17 00:00:00 2001 From: Charles Keepax ckeepax@opensource.cirrus.com Date: Fri, 7 Jun 2024 11:34:23 +0100 Subject: [PATCH] spi: cs42l43: Drop cs35l56 SPI speed down to 11MHz
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@opensource.cirrus.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20240607103423.4159834-1-ckeepax@opensource.cirrus... Signed-off-by: Mark Brown broonie@kernel.org
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 = &l, @@ -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 = &r,