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Subject[PATCH v11 4/7] cpufreq:exynos:Extend Exynos cpufreq driver to support boost framework
The cpufreq_driver's boost_supported flag is true only when boost
support is explicitly enabled. Boost related attributes are exported only
under the same condition.

Signed-off-by: Lukasz Majewski <>
Signed-off-by: Myungjoo Ham <>
Acked-by: Viresh Kumar <>

Changes for v11:
- None

Changes for v10:
- None

Changes for v9:
- The exynos_cpufreq_attr[] has been replaced by generic_cpufreq_attr[],
therefore the cpufreq_freq_attr_scaling_boost_freqs is now added at
freq_table.c file.

Changes for v8:
- None

Changes for v7:
- Move boost_supported initialization to struct cpufreq_driver exynos_driver

Changes for v6:
- Replace exynos_driver.boost_supported = 1 to = true
- Protect boost attributes export with CONFIG_CPU_FREQ_BOOST_SW

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 | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index f3c2287..3cd6d2e 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -226,6 +226,9 @@ static struct cpufreq_driver exynos_driver = {
.exit = cpufreq_generic_exit,
.name = "exynos_cpufreq",
.attr = cpufreq_generic_attr,
+ .boost_supported = true,
#ifdef CONFIG_PM
.suspend = exynos_cpufreq_suspend,
.resume = exynos_cpufreq_resume,

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