Re: [Intel-gfx] [v2] drm/i915/pps: improve eDP power on flow

2022-11-02 Thread Lee, Shawn C
On Wednesday, November 2, 2022 6:19 PM, Jani Nikula wrote: >On Tue, 01 Nov 2022, "Lee, Shawn C" wrote: >> On Tue, Nov. 1, 2022, 1:43 p.m, Jani Nikula >> wrote: >>>On Tue, 01 Nov 2022, "Lee, Shawn C" wrote: On Tuesday, November 1, 2022 5:53 PM, Jani Nikula wrote: >On Mon, 24 Oc

Re: [Intel-gfx] [v2] drm/i915/pps: improve eDP power on flow

2022-11-02 Thread Jani Nikula
On Tue, 01 Nov 2022, "Lee, Shawn C" wrote: > On Tue, Nov. 1, 2022, 1:43 p.m, Jani Nikula > wrote: >>On Tue, 01 Nov 2022, "Lee, Shawn C" wrote: >>> On Tuesday, November 1, 2022 5:53 PM, Jani Nikula >>> wrote: On Mon, 24 Oct 2022, Lee Shawn C wrote: > A panel power off cycle delay alwa

Re: [Intel-gfx] [v2] drm/i915/pps: improve eDP power on flow

2022-11-01 Thread Lee, Shawn C
On Tue, Nov. 1, 2022, 1:43 p.m, Jani Nikula wrote: >On Tue, 01 Nov 2022, "Lee, Shawn C" wrote: >> On Tuesday, November 1, 2022 5:53 PM, Jani Nikula >> wrote: >>>On Mon, 24 Oct 2022, Lee Shawn C wrote: A panel power off cycle delay always append before turn eDP on. Driver should check

Re: [Intel-gfx] [v2] drm/i915/pps: improve eDP power on flow

2022-11-01 Thread Lee, Shawn C
On Tue, Nov. 1, 2022, 1:43 p.m, Jani Nikula wrote: >On Tue, 01 Nov 2022, "Lee, Shawn C" wrote: >> On Tuesday, November 1, 2022 5:53 PM, Jani Nikula >> wrote: >>>On Mon, 24 Oct 2022, Lee Shawn C wrote: A panel power off cycle delay always append before turn eDP on. Driver should check

Re: [Intel-gfx] [v2] drm/i915/pps: improve eDP power on flow

2022-11-01 Thread Jani Nikula
On Tue, 01 Nov 2022, "Lee, Shawn C" wrote: > On Tuesday, November 1, 2022 5:53 PM, Jani Nikula > wrote: >>On Mon, 24 Oct 2022, Lee Shawn C wrote: >>> A panel power off cycle delay always append before turn eDP on. >>> Driver should check last_power_on and last_backlight_off before insert >>> t

Re: [Intel-gfx] [v2] drm/i915/pps: improve eDP power on flow

2022-11-01 Thread Lee, Shawn C
On Tuesday, November 1, 2022 5:53 PM, Jani Nikula wrote: >On Mon, 24 Oct 2022, Lee Shawn C wrote: >> A panel power off cycle delay always append before turn eDP on. >> Driver should check last_power_on and last_backlight_off before insert >> this delay. If these values are the same, it means

Re: [Intel-gfx] [v2] drm/i915/pps: improve eDP power on flow

2022-11-01 Thread Jani Nikula
On Mon, 24 Oct 2022, Lee Shawn C wrote: > A panel power off cycle delay always append before turn eDP on. > Driver should check last_power_on and last_backlight_off before > insert this delay. If these values are the same, it means eDP > was off until now and driver can bypass power off cycle dela

[Intel-gfx] [v2] drm/i915/pps: improve eDP power on flow

2022-10-24 Thread Lee Shawn C
A panel power off cycle delay always append before turn eDP on. Driver should check last_power_on and last_backlight_off before insert this delay. If these values are the same, it means eDP was off until now and driver can bypass power off cycle delay to save some times to speed up eDP power on seq