On Thu, 07 Sep 2017, rui_f...@realsil.com.cn wrote: > From: Rui Feng <rui_f...@realsil.com.cn> > > Enable power saving for RTS5250S as following steps: > 1.Set 0xFE58 to enable clock power management. > 2.Check cfg space whether support L1SS or not. > 3.If support L1SS, set 0xFF03 to free clkreq. > 4.When entering idle status, enable aspm > and set parameters for L1SS and LTR. > 5.Wnen entering run status, disable aspm > and set parameters for L1SS and LTR. > If entering L1SS mode successfully, > electric current will be below 2mA. > > Signed-off-by: Rui Feng <rui_f...@realsil.com.cn> > --- > drivers/mfd/rts5249.c | 155 > ++++++++++++++++++++++++++++++++++++++++++- > drivers/mfd/rtsx_pcr.c | 142 +++++++++++++++++++++++++++++++++++++-- > drivers/mfd/rtsx_pcr.h | 14 ++++ > include/linux/mfd/rtsx_pci.h | 84 +++++++++++++++++++++++ > 4 files changed, 389 insertions(+), 6 deletions(-)
Applied for v4.15, thanks. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
