Commit 4e8c84a5 authored by Jesse Barnes's avatar Jesse Barnes Committed by Daniel Vetter

drm/i915: set conservative clock gating values on VLV v2

We'll re-enable select bits as needed after testing and power measurement.

v2: split out wake handling bits (Jani)
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent d3bc0303
...@@ -3987,7 +3987,16 @@ static void valleyview_init_clock_gating(struct drm_device *dev) ...@@ -3987,7 +3987,16 @@ static void valleyview_init_clock_gating(struct drm_device *dev)
* Disable clock gating on th GCFG unit to prevent a delay * Disable clock gating on th GCFG unit to prevent a delay
* in the reporting of vblank events. * in the reporting of vblank events.
*/ */
I915_WRITE(VLV_GUNIT_CLOCK_GATE, GCFG_DIS); I915_WRITE(VLV_GUNIT_CLOCK_GATE, 0xffffffff);
/* Conservative clock gating settings for now */
I915_WRITE(0x9400, 0xffffffff);
I915_WRITE(0x9404, 0xffffffff);
I915_WRITE(0x9408, 0xffffffff);
I915_WRITE(0x940c, 0xffffffff);
I915_WRITE(0x9410, 0xffffffff);
I915_WRITE(0x9414, 0xffffffff);
I915_WRITE(0x9418, 0xffffffff);
} }
static void g4x_init_clock_gating(struct drm_device *dev) static void g4x_init_clock_gating(struct drm_device *dev)
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment