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Commit b61e0703 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

Merge branch 'cpufreq-scpi' 

* cpufreq-scpi:
  cpufreq: scpi: Fix incorrect arm_big_little config dependency
  cpufreq: scpi: invoke frequency-invariance setter function
parents 0373ca74 5c8b2623

drivers/cpufreq/Kconfig.arm

+3 −3
Original line number Diff line number Diff line
@@ -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.

drivers/cpufreq/scpi-cpufreq.c

+12 −4
Original line number Diff line number Diff line
@@ -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;



	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