Re: [Intel-gfx] [PATCH 6/7 v3] drm/i915: Add setters for min/max frequency

2012-09-12 Thread Daniel Vetter
On Fri, Sep 07, 2012 at 07:43:43PM -0700, Ben Widawsky wrote: > Provide a standardized sysfs interface for setting min, and max > frequencies. The code which reads the limits were lifted from the > debugfs files. As a brief explanation, the limits are similar to the CPU > p-states. We have 3 state

[Intel-gfx] [PATCH 6/7 v3] drm/i915: Add setters for min/max frequency

2012-09-07 Thread Ben Widawsky
Provide a standardized sysfs interface for setting min, and max frequencies. The code which reads the limits were lifted from the debugfs files. As a brief explanation, the limits are similar to the CPU p-states. We have 3 states: RP0 - ie. max frequency RP1 - ie. "preferred min" frequency RPn -