This is third attempt to initialize CPU's OPPs from CPU core code. First two are here: https://lkml.org/lkml/2014/5/19/57 and https://lkml.org/lkml/2014/5/21/199
Drivers expecting CPU's OPPs from device tree initialize OPP table themselves by calling of_init_opp_table() and there is nothing driver specific in that. They all do it in the same redundant way. It would be better if we can get rid of redundancy by initializing CPU OPPs from CPU core code for all CPUs (that have a "operating-points" property defined in their node). This patchset is all about that. The idea was initially discussed here: https://lkml.org/lkml/2014/5/17/123 V2->V3: - s/dev_info/dev_dbg - Fixed changelogs V1->V2: - Addition of two new patches: 1/2 & 2/2 - Created separate routine of_init_cpu_opp_table() which wouldn't add any overhead for the platforms which don't have OPP or OF enabled. - Added a print for success case as well - Added Acks from Shawn - Got rid of extra indentation level by returning early from register_cpu(). Cc: Greg Kroah-Hartman <[email protected]> Cc: Amit Daniel Kachhap <[email protected]> Cc: Kukjin Kim <[email protected]> Cc: Shawn Guo <[email protected]> Viresh Kumar (8): cpufreq: cpufreq-cpu0: remove dependency on thermal opp: of_init_opp_table(): return -ENOSYS when feature isn't implemented opp: call of_node_{get|put}() from of_init_opp_table() driver/core: cpu: initialize opp table cpufreq: arm_big_little: don't initialize opp table cpufreq: imx6q: don't initialize opp table cpufreq: cpufreq-cpu0: don't initialize opp table cpufreq: exynos5440: don't initialize opp table arch/arm/mach-imx/mach-imx6q.c | 36 ++++++++---------------------------- drivers/base/cpu.c | 30 ++++++++++++++++++++++++++---- drivers/base/power/opp.c | 4 ++++ drivers/cpufreq/Kconfig | 2 +- drivers/cpufreq/arm_big_little.c | 12 +++++++----- drivers/cpufreq/arm_big_little_dt.c | 18 ------------------ drivers/cpufreq/cpufreq-cpu0.c | 6 ------ drivers/cpufreq/exynos5440-cpufreq.c | 6 ------ drivers/cpufreq/imx6q-cpufreq.c | 20 +------------------- include/linux/pm_opp.h | 2 +- 10 files changed, 48 insertions(+), 88 deletions(-) -- 2.0.0.rc2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
