[PATCH 6.12 032/567] wifi: brcmfmac: Add DMI nvram filename quirk for Acer A1 840 tablet

Greg Kroah-Hartman
2026-01-06T17:16:25Z

From: Hans de Goede <hansg@kernel.org>

[ Upstream commit a8e5a110c0c38e08e5dd66356cd1156e91cf88e1 ]

The Acer A1 840 tablet contains quite generic names in the sys_vendor and
product_name DMI strings, without this patch brcmfmac will try to load:
brcmfmac43340-sdio.Insyde-BayTrail.txt as nvram file which is a bit
too generic.

Add a DMI quirk so that a unique and clearly identifiable nvram file name
is used on the Acer A1 840 tablet.

Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Hans de Goede <hansg@kernel.org>
Link: https://patch.msgid.link/20251103100314.353826-1-hansg@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../net/wireless/broadcom/brcm80211/brcmfmac/dmi.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
index c3a602197662b..abe7f6501e5ed 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
@@ -24,6 +24,10 @@ static const struct brcmf_dmi_data acepc_t8_data = {
BRCM_CC_4345_CHIP_ID, 6, "acepc-t8"
};

+static const struct brcmf_dmi_data acer_a1_840_data = {
+ BRCM_CC_43340_CHIP_ID, 2, "acer-a1-840"
+};
+
/* The Chuwi Hi8 Pro uses the same Ampak AP6212 module as the Chuwi Vi8 Plus
* and the nvram for the Vi8 Plus is already in linux-firmware, so use that.
*/
@@ -91,6 +95,16 @@ static const struct dmi_system_id dmi_platform_data[] = {
},
.driver_data = (void *)&acepc_t8_data,
},
+ {
+ /* Acer Iconia One 8 A1-840 (non FHD version) */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "BayTrail"),
+ /* Above strings are too generic also match BIOS date */
+ DMI_MATCH(DMI_BIOS_DATE, "04/01/2014"),
+ },
+ .driver_data = (void *)&acer_a1_840_data,
+ },
{
/* Chuwi Hi8 Pro with D2D3_Hi8Pro.233 BIOS */
.matches = {
--
2.51.0