[PATCH v6 6/8] cpufreq:exynos:Extend Exynos cpufreq driver to support boost framework

Lukasz Majewski
2013-07-25T16:33:29Z

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

---
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 | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 9ae1871..175172d9 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -270,6 +270,9 @@ static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy)

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

@@ -332,6 +335,9 @@ static int __init exynos_cpufreq_probe(struct platform_device *pdev)

locking_frequency = exynos_getspeed(0);

+#ifdef CONFIG_CPU_FREQ_BOOST_SW
+ exynos_driver.boost_supported = true;
+#endif
register_pm_notifier(&exynos_cpufreq_nb);

if (cpufreq_register_driver(&exynos_driver)) {
--
1.7.10.4