This patch series (the first two of which I posted the other day)
improves the runtime power management in the s3c-fb driver by moving it
to keeping the device runtime suspended when the screen is powered down
by userspace. This saves a trivial amount of power in the framebuffer
controller and allows the SoC core code to enter system wide idle
states which offer much more substantial gains.
Currently it's only lightly tested but it certainly seems to the right
thing for me.
Mark Brown (6):
video: s3c-fb: Make runtime PM functional again
video: s3c-fb: Use s3c_fb_enable() to enable the framebuffer
video: s3c-fb: Disable runtime PM in error paths from probe
video: s3c-fb: Take a runtime PM reference when unblanked
video: s3c-fb: Hold runtime PM references when touching registers
video: s3c-fb: Don't keep device runtime active when open
drivers/video/s3c-fb.c | 127 ++++++++++++++++++++++++++++++++++-------------
1 files changed, 92 insertions(+), 35 deletions(-)