This is a note to let you know that I've just added the patch titled
ASoC: rt5645: Make LattePanda board DMI match more precise
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-rt5645-make-lattepanda-board-dmi-match-more-pre.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit dc7c6b7a2046da5f3ab94debf5e298c7d6aa1285
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Sun Feb 11 22:27:35 2024 +0100
ASoC: rt5645: Make LattePanda board DMI match more precise
[ Upstream commit 551539a8606e28cb2a130f8ef3e9834235b456c4 ]
The DMI strings used for the LattePanda board DMI quirks are very generic.
Using the dmidecode database from https://linux-hardware.org/ shows
that the chosen DMI strings also match the following 2 laptops
which also have a rt5645 codec:
Insignia NS-P11W7100 https://linux-hardware.org/?computer=E092FFF8BA04
Insignia NS-P10W8100 https://linux-hardware.org/?computer=AFB6C0BF7934
All 4 hw revisions of the LattePanda board have "S70CR" in their BIOS
version DMI strings:
DF-BI-7-S70CR100-*
DF-BI-7-S70CR110-*
DF-BI-7-S70CR200-*
LP-BS-7-S70CR700-*
See e.g. https://linux-hardware.org/?computer=D98250A817C0
Add a partial (non exact) DMI match on this string to make the LattePanda
board DMI match more precise to avoid false-positive matches.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Link: https://msgid.link/r/20240211212736.179605-1-hdegoede@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 5ec6e9f251c5b..5f23369d7ccad 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -3797,6 +3797,16 @@ static const struct dmi_system_id dmi_platform_data[] = {
DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
DMI_EXACT_MATCH(DMI_BOARD_VERSION, "Default string"),
+ /*
+ * Above strings are too generic, LattePanda BIOS versions for
+ * all 4 hw revisions are:
+ * DF-BI-7-S70CR100-*
+ * DF-BI-7-S70CR110-*
+ * DF-BI-7-S70CR200-*
+ * LP-BS-7-S70CR700-*
+ * Do a partial match for S70CR to avoid false positive matches.
+ */
+ DMI_MATCH(DMI_BIOS_VERSION, "S70CR"),
},
.driver_data = (void *)&lattepanda_board_platform_data,
},
