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| author | Borun Fu <borun.fu@intel.com> | 2014-07-12 10:02:27 +0530 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-07-23 07:04:54 +0200 |
| commit | b04c5bd6fda54703e56f29569e4bca489d6c5a5c (patch) | |
| tree | 85e14146da8f4e50bf4f961c26312c190bee217d /drivers/gpu/drm/i915/i915_drv.h | |
| parent | b55dd64720919ba8d6830fbaec9e779e4bdb0ae0 (diff) | |
| download | lwn-b04c5bd6fda54703e56f29569e4bca489d6c5a5c.tar.gz lwn-b04c5bd6fda54703e56f29569e4bca489d6c5a5c.zip | |
drm/i915: Power gating display wells during i915_pm_suspend
On VLV, after i915_pm_suspend display power wells are staying
power ungated. So, after initiating mem sleep "echo mem > /sys/power/state"
Display is staing D0 State. There might be better way/place to power gate
these wells. Also, we need to make sure that if wells are power gated due to
DPMS OFF sequence, they need not be turned off by i915_pm_suspend again.
v2: Extracted helper for intel_crtc_disable and power gating CRTC power wells.
[Daniel]
Cc: Imre Deak <imre.deak@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Change-Id: I34c80da66aa24c423a5576c68aa1f3a8d0f43848
Signed-off-by: Borun Fu <borun.fu@intel.com>
Signed-off-by: Sagar Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 8620ea91e108..1c6640118a70 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -179,6 +179,10 @@ enum hpd_pin { list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \ if ((intel_connector)->base.encoder == (__encoder)) +#define for_each_power_domain(domain, mask) \ + for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \ + if ((1 << (domain)) & (mask)) + struct drm_i915_private; struct i915_mmu_object; |