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Message-Id: <1437008972-9140-89-git-send-email-kamal@canonical.com>
Date: Wed, 15 Jul 2015 18:06:49 -0700
From: Kamal Mostafa <kamal@...onical.com>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
kernel-team@...ts.ubuntu.com
Cc: Rafał Miłecki <zajec5@...il.com>,
Kalle Valo <kvalo@...eaurora.org>,
Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 088/251] b43: fix support for 14e4:4321 PCI dev with BCM4321 chipset
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@...il.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@...il.com>
Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
Signed-off-by: Kamal Mostafa <kamal@...onical.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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