cpufreq: use generic cpufreq drivers for exynos platforms

Hi Mike,

Quoted 19 lines · Thomas Abraham

Hi Tomasz,

Quoted 8 lines · Thomas Abraham

Changes since v6:
- Fixes suggested by Amit Daniel <[email protected]>.

This patch series removes the use of Exynos4210 and Exynos5250 specific cpufreq drivers and enables the use of cpufreq-cpu0 driver for these platforms. This series also enabled cpufreq support for Exynos5420 using arm_big_little cpufreq driver.

Quoted 7 lines

Thomas Abraham (6):
clk: samsung: add infrastructure to register cpu clocks
clk: samsung: register exynos5420 apll/kpll configuration data
clk: exynos: use cpu-clock provider type to represent arm clock
ARM: dts: Exynos: add cpu nodes, opp and cpu clock configuration data
ARM: Exynos: switch to using generic cpufreq driver for exynos4210/5250
cpufreq: exynos: remove exynos4210/5250 specific cpufreq driver support

Quoted 2 lines

In this series, support for Exynos5420 has been included. If there are any more changes required, could you please let me know.

This patch series migrates exynos cpufreq support to use generic cpufreq drivers. For this, cpu clock blocks are encapsulated into a cpu clock type and cpufreq driver operates the cpu clock type.

We had discussed in the [1] about using coordinated clocks. This series is not using the concept of coordinated clocks but the code in this series can be migrated to use coordinated clocks when it is available.

Is it okay to consider this series for v3.17-rc1. I will update this code to use coordinated clocks when it is available. This series helps with cpufreq support for newer Exynos SoCs such as Exynos5420/3250.

[1] http://www.spinics.net/lists/cpufreq/msg10042.html