From: Guennadi Liakhovetski Date: Mon, 25 Feb 2013 17:22:37 +0000 (+0100) Subject: cpufreq: cpufreq-cpu0: use the exact frequency for clk_set_rate() X-Git-Tag: firefly_0821_release~3680^2~354^2^2 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0ca684365547cd5f214b5739568dae3df5d6cec9;p=firefly-linux-kernel-4.4.55.git cpufreq: cpufreq-cpu0: use the exact frequency for clk_set_rate() clk_set_rate() isn't supposed to accept approximate frequencies, instead a supported frequency should be obtained from clk_round_rate() and then used to set the clock. Signed-off-by: Guennadi Liakhovetski Acked-by: Shawn Guo Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index a64eb8b70444..ad1fde277661 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -45,7 +45,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, struct cpufreq_freqs freqs; struct opp *opp; unsigned long volt = 0, volt_old = 0, tol = 0; - long freq_Hz; + long freq_Hz, freq_exact; unsigned int index; int ret; @@ -60,6 +60,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000); if (freq_Hz < 0) freq_Hz = freq_table[index].frequency * 1000; + freq_exact = freq_Hz; freqs.new = freq_Hz / 1000; freqs.old = clk_get_rate(cpu_clk) / 1000; @@ -98,7 +99,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, } } - ret = clk_set_rate(cpu_clk, freqs.new * 1000); + ret = clk_set_rate(cpu_clk, freq_exact); if (ret) { pr_err("failed to set clock rate: %d\n", ret); if (cpu_reg)