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-rw-r--r--sound/soc/codecs/rt5645.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 844d14d4c..aac914074 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -3802,6 +3802,16 @@ 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,
},