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Subject[PATCH 3.19.y-ckt 088/251] b43: fix support for 14e4:4321 PCI dev with BCM4321 chipset
Date
3.19.8-ckt4 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>

commit 90f91b129810c3f169e443252be30ed7c0130326 upstream.

It seems Broadcom released two devices with conflicting device id. There
are for sure 14e4:4321 PCI devices with BCM4321 (N-PHY) chipset, they
can be found in routers, e.g. Netgear WNR834Bv2. However, according to
Broadcom public sources 0x4321 is also used for 5 GHz BCM4306 (G-PHY).
It's unsure if they meant PCI device id, or "virtual" id (from SPROM).
To distinguish these devices lets check PHY type (G vs. N).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
drivers/net/wireless/b43/main.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 2fa0dbb..7ada9b9 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -5317,6 +5317,10 @@ static void b43_supported_bands(struct b43_wldev *dev, bool *have_2ghz_phy,
*have_5ghz_phy = true;
return;
case 0x4321: /* BCM4306 */
+ /* There are 14e4:4321 PCI devs with 2.4 GHz BCM4321 (N-PHY) */
+ if (dev->phy.type != B43_PHYTYPE_G)
+ break;
+ /* fall through */
case 0x4313: /* BCM4311 */
case 0x431a: /* BCM4318 */
case 0x432a: /* BCM4321 */
--
1.9.1


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