k_po/k_pu are two proportional term constants and essentially they have fixed ratio compared with sustainable power. In current implementation, k_po and k_pu are absolute value after calculation and cannot represent the ratio relationship with sustainable power; as a result, when change sustainable power we cannot smoothly change proportional term constant.
So this patch series introduces k_po_ratio and k_pu_ratio, which represent the ratio value compared against sustainable power. Also add sys file system nodes for them for easily update them from userspace and update a bit in documentation. Changes from v1: * According to Eduardo' comments, move code from thermal_core to power_allocator file * According to Daniel's review, v1 will introduce accumulated rounding errors; v2 patches can dismiss this issue Leo Yan (4): thermal: power_allocator: rework proportional parameter thermal: power_allocator: change k_pu_ratio/k_po_ratio as percentage thermal: add sys node for k_pu_ratio/k_po_ratio thermal: power_allocator: document k_pu_ratio/k_po_ratio Documentation/thermal/power_allocator.txt | 15 +++++++++++---- drivers/thermal/power_allocator.c | 18 ++++++++++++------ drivers/thermal/thermal_core.c | 23 +++++++++++++++++++++-- include/linux/thermal.h | 4 ++-- 4 files changed, 46 insertions(+), 14 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
