linux-kernel - [PATCH 3.17 145/319] MIPS: loongson2_cpufreq: Fix CPU clock rate setting mismerge

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Date:	Wed, 12 Nov 2014 10:14:43 +0900
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Aaro Koskinen <aaro.koskinen@....fi>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	linux-mips@...ux-mips.org, Ralf Baechle <ralf@...ux-mips.org>
Subject: [PATCH 3.17 145/319] MIPS: loongson2_cpufreq: Fix CPU clock rate setting mismerge

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

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

From: Aaro Koskinen <aaro.koskinen@....fi>

commit aa08ed55442ac6f9810c055e1474be34e785e556 upstream.

During 3.16 merge window, parts of the commit 8e8acb32960f
(MIPS/loongson2_cpufreq: Fix CPU clock rate setting) seem to have
been deleted probably due to a mismerge, and as a result cpufreq
is broken again on Loongson2 boards in 3.16 and newer kernels.
Fix by repeating the fix.

Signed-off-by: Aaro Koskinen <aaro.koskinen@....fi>
Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Cc: linux-mips@...ux-mips.org
Cc: linux-kernel@...r.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7835/
Signed-off-by: Ralf Baechle <ralf@...ux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/mips/loongson/lemote-2f/clock.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/arch/mips/loongson/lemote-2f/clock.c
+++ b/arch/mips/loongson/lemote-2f/clock.c
@@ -91,6 +91,7 @@ EXPORT_SYMBOL(clk_put);

 int clk_set_rate(struct clk *clk, unsigned long rate)
 {
+	unsigned int rate_khz = rate / 1000;
 	struct cpufreq_frequency_table *pos;
 	int ret = 0;
 	int regval;
@@ -107,9 +108,9 @@ int clk_set_rate(struct clk *clk, unsign
 		propagate_rate(clk);

 	cpufreq_for_each_valid_entry(pos, loongson2_clockmod_table)
-		if (rate == pos->frequency)
+		if (rate_khz == pos->frequency)
 			break;
-	if (rate != pos->frequency)
+	if (rate_khz != pos->frequency)
 		return -ENOTSUPP;

 	clk->rate = rate;

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