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authorRichard Fitzgerald <rf@opensource.cirrus.com>2025-11-03 11:58:09 +0000
committerMark Brown <broonie@kernel.org>2025-11-03 13:09:14 +0000
commit8da0efc3da9312b65f5cbf06e57d284f69222b2e (patch)
tree2ac4cb91dcaee622f35d4750ba6ede0b19dc74b2
parent6146a0f1dfae5d37442a9ddcba012add260bceb0 (diff)
ASoC: doc: cs35l56: Update firmware filename description for B0 silicon
Update the text for firmware file naming to show that the l?u? suffix is supported on CS35L56 B0 silicon and ampN was only used on early firmware. The previous version of this text only said that B0 silicon used the ampN suffix. Since kernel 6.16 the driver supports both the old ampN and new l?u? suffix for B0 silicon. New firmwares will use the l?u? suffix. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://patch.msgid.link/20251103115809.33953-1-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--Documentation/sound/codecs/cs35l56.rst9
1 files changed, 4 insertions, 5 deletions
diff --git a/Documentation/sound/codecs/cs35l56.rst b/Documentation/sound/codecs/cs35l56.rst
index 57d1964453e1..d5363b08f515 100644
--- a/Documentation/sound/codecs/cs35l56.rst
+++ b/Documentation/sound/codecs/cs35l56.rst
@@ -105,10 +105,10 @@ In this example the SSID is 10280c63.
The format of the firmware file names is:
-SoundWire (except CS35L56 Rev B0):
+SoundWire:
cs35lxx-b0-dsp1-misc-SSID[-spkidX]-l?u?
-SoundWire CS35L56 Rev B0:
+SoundWire CS35L56 Rev B0 firmware released before kernel version 6.16:
cs35lxx-b0-dsp1-misc-SSID[-spkidX]-ampN
Non-SoundWire (HDA and I2S):
@@ -127,9 +127,8 @@ Where:
* spkidX is an optional part, used for laptops that have firmware
configurations for different makes and models of internal speakers.
-The CS35L56 Rev B0 continues to use the old filename scheme because a
-large number of firmware files have already been published with these
-names.
+Early firmware for CS35L56 Rev B0 used the ALSA prefix (ampN) as the
+filename qualifier. Support for the l?u? qualifier was added in kernel 6.16.
Sound Open Firmware and ALSA topology files
-------------------------------------------