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| author | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2013-12-06 17:32:41 -0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-12-11 23:51:41 +0100 |
| commit | dff392dbd258381a6c3164f38420593f2d291e3b (patch) | |
| tree | 380e9cd2355602994d8d2a9d250ae739fce05c49 | |
| parent | 9b33600d52fab54df1aa82ea0d70c113060c293a (diff) | |
| download | lwn-dff392dbd258381a6c3164f38420593f2d291e3b.tar.gz lwn-dff392dbd258381a6c3164f38420593f2d291e3b.zip | |
drm/i915: don't touch the VDD when disabling the panel
I don't see a reason to touch VDD when we're disabling the panel:
since the panel is enabled, we don't need VDD. This saves a few sleep
calls from the vdd_on and vdd_off functions at every modeset.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69693
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: Fix the patch mangle wiggle has done ... Spotted by Paulo.
Also drop the runtime_pm_put call which now has to go due to different
patch ordering. Also from Paul.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 10 |
2 files changed, 2 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index a75ceb5132ed..8b0e96ff76c9 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1165,7 +1165,7 @@ static void intel_ddi_post_disable(struct intel_encoder *intel_encoder) if (type == INTEL_OUTPUT_EDP) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); - ironlake_edp_panel_vdd_on(intel_dp); + ironlake_edp_panel_off(intel_dp); } diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index ba5a59c9129f..948892d18ff7 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1239,24 +1239,17 @@ void ironlake_edp_panel_off(struct intel_dp *intel_dp) DRM_DEBUG_KMS("Turn eDP power off\n"); - WARN(!intel_dp->want_panel_vdd, "Need VDD to turn off panel\n"); - pp = ironlake_get_pp_control(intel_dp); /* We need to switch off panel power _and_ force vdd, for otherwise some * panels get very unhappy and cease to work. */ - pp &= ~(POWER_TARGET_ON | EDP_FORCE_VDD | PANEL_POWER_RESET | EDP_BLC_ENABLE); + pp &= ~(POWER_TARGET_ON | PANEL_POWER_RESET | EDP_BLC_ENABLE); pp_ctrl_reg = _pp_ctrl_reg(intel_dp); I915_WRITE(pp_ctrl_reg, pp); POSTING_READ(pp_ctrl_reg); - intel_dp->want_panel_vdd = false; - ironlake_wait_panel_off(intel_dp); - - /* We got a reference when we enabled the VDD. */ - intel_runtime_pm_put(dev_priv); } void ironlake_edp_backlight_on(struct intel_dp *intel_dp) @@ -1781,7 +1774,6 @@ static void intel_disable_dp(struct intel_encoder *encoder) /* Make sure the panel is off before trying to change the mode. But also * ensure that we have vdd while we switch off the panel. */ - ironlake_edp_panel_vdd_on(intel_dp); ironlake_edp_backlight_off(intel_dp); intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF); ironlake_edp_panel_off(intel_dp); |