linux-kernel - [PATCH 4.4 041/101] MIPS: ralink: fix USB frequency scaling

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Date:   Mon,  3 Jul 2017 15:34:41 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, John Crispin <blogic@...nwrt.org>,
        linux-mips@...ux-mips.org, Ralf Baechle <ralf@...ux-mips.org>,
        Amit Pundir <amit.pundir@...aro.org>
Subject: [PATCH 4.4 041/101] MIPS: ralink: fix USB frequency scaling

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

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

From: John Crispin <blogic@...nwrt.org>

commit fad2522272ed5ed451d2d7b1dc547ddf3781cc7e upstream.

Commit 418d29c87061 ("MIPS: ralink: Unify SoC id handling") was not fully
correct. The logic for the SoC check got inverted. We need to check if it
is not a MT76x8.

Signed-off-by: John Crispin <blogic@...nwrt.org>
Cc: linux-mips@...ux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11992/
Signed-off-by: Ralf Baechle <ralf@...ux-mips.org>
Signed-off-by: Amit Pundir <amit.pundir@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/mips/ralink/mt7620.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/mips/ralink/mt7620.c
+++ b/arch/mips/ralink/mt7620.c
@@ -459,7 +459,7 @@ void __init ralink_clk_init(void)
 	ralink_clk_add("10000c00.uartlite", periph_rate);
 	ralink_clk_add("10180000.wmac", xtal_rate);
 
-	if (IS_ENABLED(CONFIG_USB) && is_mt76x8()) {
+	if (IS_ENABLED(CONFIG_USB) && !is_mt76x8()) {
 		/*
 		 * When the CPU goes into sleep mode, the BUS clock will be
 		 * too low for USB to function properly. Adjust the busses