UPSTREAM: cpufreq: exynos: Show list of available frequencies

Add freq_attr attribute to show list of available frequencies.

BUG=chrome-os-partner:26572
TEST=Boot Skate and see all the supported CPU frequencies:
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies

Signed-off-by: Donggeun Kim <dg77.kim@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: KyungMin Park <kyungmin.park@samsung.com>
Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
(cherry picked from commit 1298271b03be167f455303cd9146ba1b771028d8)
[a.kesavan: Fixed checkpatch warning]
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>

Change-Id: I7dd8f125bcb2e679cbf80b94fb8e1f12c33a8e30
Reviewed-on: https://chromium-review.googlesource.com/189383
Tested-by: Amarendra Reddy <amarendra.xt@samsung.com>
Reviewed-by: RAVISHANKAR KN <rash.7015@gmail.com>
Tested-by: RAVISHANKAR KN <rash.7015@gmail.com>
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Commit-Queue: Katie Roberts-Hoffman <katierh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/189597
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
1 file changed