This can be considered a successor to: https://lore.kernel.org/linuxppc-dev/20210504030358.1715034-1-nath...@linux.ibm.com/
which tried to address both the suboptimal delay behavior as well as API issues. This version achieves the performance improvements and leaves major API changes for another time. Changes since v1: * Drop major API changes. * Avoid division when calculating the arguments to usleep_range() (Alexey). * Improve kernel-doc for rtas_busy_delay(), rtas_busy_delay_time(). Nathan Lynch (2): powerpc/rtas: rtas_busy_delay() improvements powerpc/rtas: rtas_busy_delay_time() kernel-doc arch/powerpc/include/asm/rtas.h | 2 +- arch/powerpc/kernel/rtas.c | 95 +++++++++++++++++++++++++++++---- 2 files changed, 87 insertions(+), 10 deletions(-) -- 2.31.1