This is a note to let you know that I've just added the patch titled
brcmfmac: Prefer DT board type over DMI board type
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
brcmfmac-prefer-dt-board-type-over-dmi-board-type.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a5a36720c3f650f859f5e9535dd62d06f13f4f3b Mon Sep 17 00:00:00 2001
From: "Ivan T. Ivanov" <iivanov@xxxxxxx>
Date: Fri, 6 Jan 2023 15:19:05 +0200
Subject: brcmfmac: Prefer DT board type over DMI board type
From: Ivan T. Ivanov <iivanov@xxxxxxx>
commit a5a36720c3f650f859f5e9535dd62d06f13f4f3b upstream.
The introduction of support for Apple board types inadvertently changed
the precedence order, causing hybrid SMBIOS+DT platforms to look up the
firmware using the DMI information instead of the device tree compatible
to generate the board type. Revert back to the old behavior,
as affected platforms use firmwares named after the DT compatible.
Fixes: 7682de8b3351 ("wifi: brcmfmac: of: Fetch Apple properties")
[1] https://bugzilla.opensuse.org/show_bug.cgi?id=1206697#c13
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Ivan T. Ivanov <iivanov@xxxxxxx>
Reviewed-by: Hector Martin <marcan@xxxxxxxxx>
Reviewed-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
Tested-by: Peter Robinson <pbrobinson@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
index a83699de01ec..fdd0c9abc1a1 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
@@ -79,7 +79,8 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
/* Apple ARM64 platforms have their own idea of board type, passed in
* via the device tree. They also have an antenna SKU parameter
*/
- if (!of_property_read_string(np, "brcm,board-type", &prop))
+ err = of_property_read_string(np, "brcm,board-type", &prop);
+ if (!err)
settings->board_type = prop;
if (!of_property_read_string(np, "apple,antenna-sku", &prop))
@@ -87,7 +88,7 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
/* Set board-type to the first string of the machine compatible prop */
root = of_find_node_by_path("/");
- if (root && !settings->board_type) {
+ if (root && err) {
char *board_type;
const char *tmp;
--
2.39.0
Patches currently in stable-queue which might be from iivanov@xxxxxxx are
queue-6.1/brcmfmac-prefer-dt-board-type-over-dmi-board-type.patch
