linux-kernel - [ 42/75] MIPS: ath79: fix AR933X WMAC reset code

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Message-Id: <20120504204227.974112268@linuxfoundation.org>
Date:	Fri, 04 May 2012 13:43:06 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Gabor Juhos <juhosg@...nwrt.org>,
	Ralf Baechle <ralf@...ux-mips.org>
Subject: [ 42/75] MIPS: ath79: fix AR933X WMAC reset code

3.3-stable review patch.  If anyone has any objections, please let me know.

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

From: Gabor Juhos <juhosg@...nwrt.org>

commit de14ca6ae2c592d66db88f1e5596b26f7f011384 upstream.

The current code puts the built-in WMAC device of the
AR933X SoCs into reset instead of starting it. This
causes a hard lock on AR933X based boards when the
wireless driver tries to access the device.

Signed-off-by: Gabor Juhos <juhosg@...nwrt.org>
Cc: linux-mips@...ux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3484/
Signed-off-by: Ralf Baechle <ralf@...ux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/mips/ath79/dev-wmac.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/mips/ath79/dev-wmac.c
+++ b/arch/mips/ath79/dev-wmac.c
@@ -58,8 +58,8 @@ static void __init ar913x_wmac_setup(voi
 
 static int ar933x_wmac_reset(void)
 {
-	ath79_device_reset_clear(AR933X_RESET_WMAC);
 	ath79_device_reset_set(AR933X_RESET_WMAC);
+	ath79_device_reset_clear(AR933X_RESET_WMAC);
 
 	return 0;
 }


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