diff options
| author | Durgadoss R <durgadoss.r@intel.com> | 2015-02-13 15:33:02 +0530 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-02-24 11:51:38 +0100 |
| commit | 44395bfe2f2a22ec769eb51ea1908082cf9aa16d (patch) | |
| tree | 24399eb6afe56a9a213fab97f9d85c165e2a6d01 | |
| parent | 6fa7aec1db07f43d3ad94122c3bd52647c81619e (diff) | |
| download | lwn-44395bfe2f2a22ec769eb51ea1908082cf9aa16d.tar.gz lwn-44395bfe2f2a22ec769eb51ea1908082cf9aa16d.zip | |
drm/i915: Enable eDP DRRS for CHV
This patch enables eDP DRRS for CHV by adding the
required IS_CHERRYVIEW() checks.
CHV uses the same register bit as VLV.
[Vandana]: Since CHV has 2 sets of M_N registers, it will follow the same code
path as gen < 8. Added CHV check in dp_set_m_n()
[Ram]: Rebased on top of previous patch modifications
Signed-off-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index ebb725851998..2ac93909cfc5 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5879,7 +5879,7 @@ static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, * for gen < 8) and if DRRS is supported (to make sure the * registers are not unnecessarily accessed). */ - if (m2_n2 && INTEL_INFO(dev)->gen < 8 && + if (m2_n2 && (IS_CHERRYVIEW(dev) || INTEL_INFO(dev)->gen < 8) && crtc->config->has_drrs) { I915_WRITE(PIPE_DATA_M2(transcoder), TU_SIZE(m2_n2->tu) | m2_n2->gmch_m); diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 4d6e68c52fd9..686c3d5c3769 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4808,7 +4808,7 @@ static void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate) return; } - if (INTEL_INFO(dev)->gen >= 8) { + if (INTEL_INFO(dev)->gen >= 8 && !IS_CHERRYVIEW(dev)) { switch (index) { case DRRS_HIGH_RR: intel_dp_set_m_n(intel_crtc, M1_N1); |