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From patchwork Fri Aug 25 11:38:29 2017
Content-Type: text/plain; charset="utf-8"
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Subject: rt2800: fix TX_PIN_CFG setting for non MT7620 chips
From: Stanislaw Gruszka <sgruszka@redhat.com>
X-Patchwork-Id: 9921831
Message-Id: <20170825113828.GA3959@redhat.com>
To: linux-wireless@vger.kernel.org
Cc: Daniel Golle <daniel@makrotopia.org>
Date: Fri, 25 Aug 2017 13:38:29 +0200
Since commit 41977e86c984 ("rt2x00: add support for MT7620") we do not
initialize TX_PIN_CFG setting. This cause breakage at least on some
RT3573 devices. To fix the problem patch restores previous behaviour
for non MT7620 chips.
Fixes: 41977e86c984 ("rt2x00: add support for MT7620")
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1480829
Reported-and-tested-by: Jussi Eloranta <jussi.eloranta@csun.edu>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
---
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index d11c7b2..5672aec 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -3699,7 +3699,10 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
if (rt2x00_rt(rt2x00dev, RT3572))
rt2800_rfcsr_write(rt2x00dev, 8, 0);
- rt2800_register_read(rt2x00dev, TX_PIN_CFG, &tx_pin);
+ if (rt2x00_rt(rt2x00dev, RT6352))
+ rt2800_register_read(rt2x00dev, TX_PIN_CFG, &tx_pin);
+ else
+ tx_pin = 0;
switch (rt2x00dev->default_ant.tx_chain_num) {
case 3:
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