V1: https://lkml.org/lkml/2014/6/25/152
Stephen Boyd sent few patches some time back around a new cpufreq driver for Qualcomm's Krait SoC: https://lkml.org/lkml/2014/6/24/918. Krait couldn't use existing cpufreq-cpu0 driver as it doesn't have support for SoC's with multiple clusters or SoC's which don't share clock line across all CPUs. This patchset is all about extending support beyond CPU0. It can be used for platforms like Krait or ARM big LITTLE architecture now. First two patches add helper routine for of and clk layer, which would be used by later patches. Third one adds space for driver specific data in 'struct cpufreq_policy' and later ones migrate cpufreq-cpu0 to cpufreq-generic, i.e. can be used for SoCs which don't share clock lines across all CPUs. @Stephen: I haven't added your Tested-by as there were few modifications since the time you tested it last. Pushed here: Rebased over v3.16-rc3: git://git.linaro.org/people/viresh.kumar/linux.git cpufreq/cpu0-krait-v2 For guys looking to test on exynos, rebased over linux-next + some patches from Thomas Abraham to use cpufreq-cpu0 for exynos: git://git.linaro.org/people/viresh.kumar/linux.git cpufreq/cpu0-exynos-v2 Cc: [email protected] Cc: Kukjin Kim <[email protected]> Cc: Michal Simek <[email protected]> Cc: Mike Turquette <[email protected]> Cc: Rob Herring <[email protected]> Cc: Santosh Shilimkar <[email protected]> Cc: Simon Horman <[email protected]> Viresh Kumar (14): of: Create of_property_match() clk: Create of_clk_shared_by_cpus() cpufreq: Add support for per-policy driver data cpufreq: cpu0: Add Module Author cpufreq: cpu0: don't validate clock on clk_put() cpufreq: cpu0: defer probe if clock isn't registered yet cpufreq: cpu0: OPPs can be populated at runtime cpufreq: cpu0: use dev_{err|warn|dbg} instead of pr_{err|warn|debug} cpufreq: cpu0: Move per-cluster initialization code to ->init() cpufreq: cpu0: try regulators with name "cpu-supply" cpufreq: cpu0: Make allocate_resources() work for any CPU cpufreq: cpu0: Extend support beyond CPU0 cpufreq: cpu0: rename driver and internals to 'cpufreq_generic' cpufreq: generic: set platform_{driver|device} '.name' to 'cpufreq-generic' .../devicetree/bindings/cpufreq/cpufreq-cpu0.txt | 62 ---- .../bindings/cpufreq/cpufreq-generic.txt | 126 +++++++ arch/arm/mach-imx/imx27-dt.c | 2 +- arch/arm/mach-imx/imx51-dt.c | 2 +- arch/arm/mach-omap2/pm.c | 2 +- arch/arm/mach-shmobile/board-ape6evm-reference.c | 2 +- arch/arm/mach-shmobile/setup-sh73a0.c | 4 +- arch/arm/mach-zynq/common.c | 2 +- drivers/clk/clk.c | 56 +++ drivers/cpufreq/Kconfig | 10 +- drivers/cpufreq/Kconfig.arm | 2 +- drivers/cpufreq/Makefile | 2 +- drivers/cpufreq/cpufreq-cpu0.c | 251 ------------- drivers/cpufreq/cpufreq-generic.c | 394 +++++++++++++++++++++ drivers/cpufreq/exynos4x12-cpufreq.c | 2 +- drivers/cpufreq/highbank-cpufreq.c | 6 +- drivers/of/base.c | 29 ++ include/linux/clk.h | 6 + include/linux/cpufreq.h | 3 + include/linux/of.h | 10 + 20 files changed, 642 insertions(+), 331 deletions(-) delete mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-cpu0.txt create mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-generic.txt delete mode 100644 drivers/cpufreq/cpufreq-cpu0.c create mode 100644 drivers/cpufreq/cpufreq-generic.c -- 2.0.0.rc2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
