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From: <gregkh@linuxfoundation.org>
To: ckeepax@opensource.cirrus.com,broonie@kernel.org
Cc: <stable@vger.kernel.org>
Subject: FAILED: patch "[PATCH] spi: cs42l43: Drop cs35l56 SPI speed down to 11MHz" failed to apply to 6.9-stable tree
Date: Mon, 24 Jun 2024 18:49:14 +0200	[thread overview]
Message-ID: <2024062414-convent-usage-bb3a@gregkh> (raw)


The patch below does not apply to the 6.9-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-6.9.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 '2024062414-convent-usage-bb3a@gregkh' --subject-prefix 'PATCH 6.9.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.com
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			= &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,


                 reply	other threads:[~2024-06-24 16:49 UTC|newest]

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