On Tue, Aug 22, 2017 at 01:31:32PM -0700, Stephen Boyd wrote:

Also, I see that on v4.13-rc series the read/write checks are
causing the led driver to fail in a different way:

    spmi spmi-0: error: impermissible write to peripheral sid:0 addr:0xc040
    qcom-spmi-gpio 200f000.spmi:pm8916@0:gpios@c000: write 0x40 failed
    leds-gpio soc:leds: Error applying setting, reverse things back
    spmi spmi-0: error: impermissible write to peripheral sid:0 addr:0xc041
    qcom-spmi-gpio 200f000.spmi:pm8916@0:gpios@c000: write 0x41 failed
    leds-gpio: probe of soc:leds failed with error -1 

Are you seeing similar behavior?

Yes.  I forgot to mention that, and leds-gpio failure is gone after
applying Kiran's patch below.

spmi: pmic-arb: remove the read/write access checks

Shawn