ASoC: rt5645: Make LattePanda board DMI match more precise

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@redhat.com>
Link: https://msgid.link/r/20240211212736.179605-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 0cc2fa1..69de78a 100644 (file)
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -3838,6 +3838,16 @@ 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,
        },