ARM: ux500: fix the smp_twd clock calculation

The clock for the smp_twd block is not equal to the CPU
frequency, actually it is divided by two, so fix this,
and set the initial frequency to half of 1GHz which is
the most common case.

Reported-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/arch/arm/mach-ux500/clock.c b/arch/arm/mach-ux500/clock.c
index 2ebf998bc77d4bc63563ec0be1ebf1efb1ff79fd..7379075370040f623842f07a78724657131cdbce 100644 (file)
--- a/arch/arm/mach-ux500/clock.c
+++ b/arch/arm/mach-ux500/clock.c
@@ -651,7 +651,7 @@ static int __init clk_debugfs_init(void)
 late_initcall(clk_debugfs_init);
 #endif /* defined(CONFIG_DEBUG_FS) */
 
-unsigned long clk_smp_twd_rate = 400000000;
+unsigned long clk_smp_twd_rate = 500000000;
 
 unsigned long clk_smp_twd_get_rate(struct clk *clk)
 {
@@ -677,7 +677,7 @@ static int clk_twd_cpufreq_transition(struct notifier_block *nb,
 
        if (state == CPUFREQ_PRECHANGE) {
                /* Save frequency in simple Hz */
-               clk_smp_twd_rate = f->new * 1000;
+               clk_smp_twd_rate = (f->new * 1000) / 2;
        }
 
        return NOTIFY_OK;