[5.10,056/102] brcmfmac: Add DMI nvram filename quirk for Voyo winpad A15 tablet
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Message ID 20210305120906.046218696@linuxfoundation.org
State New, archived
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Series
  • Untitled series #487857
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Commit Message

Greg KH March 5, 2021, 12:21 p.m. UTC
From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit a338c874d3d9d2463f031e89ae14942929b93db6 ]

The Voyo winpad A15 tablet contains quite generic names in the sys_vendor
and product_name DMI strings, without this patch brcmfmac will try to load:
rcmfmac4330-sdio.To be filled by O.E.M.-To be filled by O.E.M..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 Voyo winpad A15 tablet.

While preparing a matching linux-firmware update I noticed that the nvram
is identical to the nvram used on the Prowise-PT301 tablet, so the new DMI
quirk entry simply points to the already existing Prowise-PT301 nvram file.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210129171413.139880-2-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../wireless/broadcom/brcm80211/brcmfmac/dmi.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

Patch
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diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
index 824a79f24383..6d5188b78f2d 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
@@ -44,6 +44,14 @@  static const struct brcmf_dmi_data predia_basic_data = {
 	BRCM_CC_43341_CHIP_ID, 2, "predia-basic"
 };
 
+/* Note the Voyo winpad A15 tablet uses the same Ampak AP6330 module, with the
+ * exact same nvram file as the Prowise-PT301 tablet. Since the nvram for the
+ * Prowise-PT301 is already in linux-firmware we just point to that here.
+ */
+static const struct brcmf_dmi_data voyo_winpad_a15_data = {
+	BRCM_CC_4330_CHIP_ID, 4, "Prowise-PT301"
+};
+
 static const struct dmi_system_id dmi_platform_data[] = {
 	{
 		/* ACEPC T8 Cherry Trail Z8350 mini PC */
@@ -125,6 +133,16 @@  static const struct dmi_system_id dmi_platform_data[] = {
 		},
 		.driver_data = (void *)&predia_basic_data,
 	},
+	{
+		/* Voyo winpad A15 tablet */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+			DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
+			/* Above strings are too generic, also match on BIOS date */
+			DMI_MATCH(DMI_BIOS_DATE, "11/20/2014"),
+		},
+		.driver_data = (void *)&voyo_winpad_a15_data,
+	},
 	{}
 };