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path: root/drivers/tty/serial/8250/8250_exar.c
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Diffstat (limited to 'drivers/tty/serial/8250/8250_exar.c')
-rw-r--r--drivers/tty/serial/8250/8250_exar.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c
index 0089aa305ef9..edd6dfe055bf 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -361,12 +361,15 @@ static const struct exar8250_platform iot2040_platform = {
.register_gpio = iot2040_register_gpio,
};
+/*
+ * For SIMATIC IOT2000, only IOT2040 and its variants have the Exar device,
+ * IOT2020 doesn't have. Therefore it is sufficient to match on the common
+ * board name after the device was found.
+ */
static const struct dmi_system_id exar_platforms[] = {
{
.matches = {
DMI_EXACT_MATCH(DMI_BOARD_NAME, "SIMATIC IOT2000"),
- DMI_EXACT_MATCH(DMI_BOARD_ASSET_TAG,
- "6ES7647-0AA00-1YA2"),
},
.driver_data = (void *)&iot2040_platform,
},