[PATCH v2] brcmfmac: Prefer DT board type over DMI board type

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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>
---
Changes since v1
Rewrite commit message according feedback.
https://lore.kernel.org/all/20230106072746.29516-1-iivanov@xxxxxxx/

 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;
 
-- 
2.35.3




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux