diff options
| author |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-03-02 10:44:44 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-03-02 10:44:44 +0100 |
| commit | b61e0703053321d2cdf397c438ce8d21c7317f7a (patch) | |
| tree | 31efc64ebf7bb09a8ac3754a2484ef989200ccd7 /drivers/cpufreq | |
| parent | cpufreq: s3c24xx: Fix broken s3c_cpufreq_init() (diff) | |
| parent | cpufreq: scpi: Fix incorrect arm_big_little config dependency (diff) | |
| download | linux-dev-b61e0703053321d2cdf397c438ce8d21c7317f7a.tar.xz linux-dev-b61e0703053321d2cdf397c438ce8d21c7317f7a.zip | |
Merge branch 'cpufreq-scpi'
* cpufreq-scpi:
cpufreq: scpi: Fix incorrect arm_big_little config dependency
cpufreq: scpi: invoke frequency-invariance setter function
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/Kconfig.arm | 6 | ||||
| -rw-r--r-- | drivers/cpufreq/scpi-cpufreq.c | 16 |
2 files changed, 15 insertions, 7 deletions
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm index 3a88e33b0cfe..fb586e09682d 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -44,10 +44,10 @@ config ARM_DT_BL_CPUFREQ config ARM_SCPI_CPUFREQ tristate "SCPI based CPUfreq driver" - depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI + depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI help - This adds the CPUfreq driver support for ARM big.LITTLE platforms - using SCPI protocol for CPU power management. + This adds the CPUfreq driver support for ARM platforms using SCPI + protocol for CPU power management. This driver uses SCPI Message Protocol driver to interact with the firmware providing the CPU DVFS functionality. diff --git a/drivers/cpufreq/scpi-cpufreq.c b/drivers/cpufreq/scpi-cpufreq.c index c32a833e1b00..d300a163945f 100644 --- a/drivers/cpufreq/scpi-cpufreq.c +++ b/drivers/cpufreq/scpi-cpufreq.c @@ -51,15 +51,23 @@ static unsigned int scpi_cpufreq_get_rate(unsigned int cpu) static int scpi_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) { + unsigned long freq = policy->freq_table[index].frequency; struct scpi_data *priv = policy->driver_data; - u64 rate = policy->freq_table[index].frequency * 1000; + u64 rate = freq * 1000; int ret; ret = clk_set_rate(priv->clk, rate); - if (!ret && (clk_get_rate(priv->clk) != rate)) - ret = -EIO; - return ret; + if (ret) + return ret; + + if (clk_get_rate(priv->clk) != rate) + return -EIO; + + arch_set_freq_scale(policy->related_cpus, freq, + policy->cpuinfo.max_freq); + + return 0; } static int |