[PATCH 1/2] ALSA: hda: cs35l41: Support HP OmniBook 7 Laptop 14-fr0xxx

From: Callum Wong

Date: Sun Jul 05 2026 - 10:28:30 EST


The HP OmniBook 7 Laptop 14-fr0xxx (SSID 103C8E3B) has two CS35L41
amplifiers connected over I2C. The firmware provides a _DSD, but as with
the other HP laptops already handled by this driver the properties are
not exposed to the generic ACPI path, so the amplifiers fail to probe
with "Platform not supported" and the speakers only play at a much lower
volume. Provide the configuration through cs35l41_hda_property.c
instead, so the amplifiers probe and drive the speakers at full volume.

The values are taken from the machine's _DSD. There are two amplifiers
using internal boost (1000 nH, 4500 mA, 24 uF) with the speakers wired
right/left, the reset line at _CRS GPIO index 0 and the speaker-id line
at index 1.

Fixes: 7150d57c370f ("ALSA: hda/realtek: Add support for HP Agusta using CS35L41 HDA")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Callum Wong <mail@xxxxxxxxxxxxxx>
---
sound/hda/codecs/side-codecs/cs35l41_hda_property.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/sound/hda/codecs/side-codecs/cs35l41_hda_property.c b/sound/hda/codecs/side-codecs/cs35l41_hda_property.c
index 416d7bf3e289..1d2a83b47cde 100644
--- a/sound/hda/codecs/side-codecs/cs35l41_hda_property.c
+++ b/sound/hda/codecs/side-codecs/cs35l41_hda_property.c
@@ -85,6 +85,7 @@ static const struct cs35l41_config cs35l41_config_table[] = {
{ "103C8C51", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
{ "103C8CDD", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
{ "103C8CDE", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 3900, 24 },
+ { "103C8E3B", 2, INTERNAL, { CS35L41_RIGHT, CS35L41_LEFT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
{ "104312AF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
{ "10431433", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
{ "10431463", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
@@ -511,6 +512,7 @@ static const struct cs35l41_prop_model cs35l41_prop_model_table[] = {
{ "CSC3551", "103C8C6A", hp_i2c_int_2amp_dual_spkid },
{ "CSC3551", "103C8CDD", generic_dsd_config },
{ "CSC3551", "103C8CDE", generic_dsd_config },
+ { "CSC3551", "103C8E3B", generic_dsd_config },
{ "CSC3551", "104312AF", generic_dsd_config },
{ "CSC3551", "10431433", generic_dsd_config },
{ "CSC3551", "10431463", generic_dsd_config },
--
2.54.0