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    Subject[PATCH v5 4/7] cpufreq:exynos:Extend Exynos cpufreq driver to support boost framework
    Date
    The struct cpufreq_driver has been extended to embrace the information
    related to boost support.

    When "boost_mode" device tree attribute is defined for a platform, the
    boost_supported flag is set. Moreover boost related attributes were
    exported.

    Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
    Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>

    ---
    Changes for v5:
    - None

    Changes for v4:
    - None

    Changes for v3:
    - Remove low level boost code
    - Move boost management code to cpufreq core code
    - Use boost_supported flag to indicate if driver supports over clocking

    Changes for v2:
    - Removal of struct cpufreq_boost
    - Removal of the CONFIG_CPU_FREQ_BOOST flag
    - low_level_boost with valid address when boost is supported

    drivers/cpufreq/exynos-cpufreq.c | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
    index 0d32f02..4f42fcc 100644
    --- a/drivers/cpufreq/exynos-cpufreq.c
    +++ b/drivers/cpufreq/exynos-cpufreq.c
    @@ -267,6 +267,7 @@ static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy)

    static struct freq_attr *exynos_cpufreq_attr[] = {
    &cpufreq_freq_attr_scaling_available_freqs,
    + &cpufreq_freq_attr_scaling_boost_freqs,
    NULL,
    };

    @@ -287,6 +288,7 @@ static struct cpufreq_driver exynos_driver = {

    static int __init exynos_cpufreq_init(void)
    {
    + struct device_node *node = pdev->dev.of_node;
    int ret = -EINVAL;

    exynos_info = kzalloc(sizeof(struct exynos_dvfs_info), GFP_KERNEL);
    @@ -317,6 +319,8 @@ static int __init exynos_cpufreq_init(void)
    }

    locking_frequency = exynos_getspeed(0);
    + if (of_property_read_bool(node, "boost_mode"))
    + exynos_driver.boost_supported = 1;

    register_pm_notifier(&exynos_cpufreq_nb);

    --
    1.7.10.4


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