drm/i915: Add a modeset power domain

We need a power domain for disabling DC5/DC6 around modesets to prevent
confusing the DMC.

Signed-off-by: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1447084107-8521-8-git-send-email-patrik.jakobsson@linux.intel.com

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 397781a..916e9fe 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2739,6 +2739,8 @@ static const char *power_domain_str(enum intel_display_power_domain domain)
                return "AUX_D";
        case POWER_DOMAIN_GMBUS:
                return "GMBUS";
+       case POWER_DOMAIN_MODESET:
+               return "MODESET";
        case POWER_DOMAIN_INIT:
                return "INIT";
        default:

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 6683bd1..d0dccef 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -196,6 +196,7 @@ enum intel_display_power_domain {
        POWER_DOMAIN_AUX_C,
        POWER_DOMAIN_AUX_D,
        POWER_DOMAIN_GMBUS,
+       POWER_DOMAIN_MODESET,
        POWER_DOMAIN_INIT,
 
        POWER_DOMAIN_NUM,