drm/i915: turn the eDP DDI panel on/off

It's an important step :)

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index efd1a72..b263302 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1163,12 +1163,19 @@ void intel_ddi_pre_enable(struct intel_encoder *intel_encoder)
        struct drm_i915_private *dev_priv = encoder->dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
        enum port port = intel_ddi_get_encoder_port(intel_encoder);
+       int type = intel_encoder->type;
 
-       WARN_ON(intel_crtc->ddi_pll_sel == PORT_CLK_SEL_NONE);
+       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_on(intel_dp);
+               ironlake_edp_panel_vdd_off(intel_dp, true);
+       }
 
+       WARN_ON(intel_crtc->ddi_pll_sel == PORT_CLK_SEL_NONE);
        I915_WRITE(PORT_CLK_SEL(port), intel_crtc->ddi_pll_sel);
 
-       if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT) {
+       if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) {
                struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 
                intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
@@ -1196,6 +1203,7 @@ void intel_ddi_post_disable(struct intel_encoder *intel_encoder)
        struct drm_encoder *encoder = &intel_encoder->base;
        struct drm_i915_private *dev_priv = encoder->dev->dev_private;
        enum port port = intel_ddi_get_encoder_port(intel_encoder);
+       int type = intel_encoder->type;
        uint32_t val;
        bool wait = false;
 
@@ -1214,6 +1222,12 @@ void intel_ddi_post_disable(struct intel_encoder *intel_encoder)
        if (wait)
                intel_wait_ddi_buf_idle(dev_priv, port);
 
+       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);
+       }
+
        I915_WRITE(PORT_CLK_SEL(port), PORT_CLK_SEL_NONE);
 }
 

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 53aee22..2a9998a 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -651,9 +651,6 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
        return -EREMOTEIO;
 }
 
-static void ironlake_edp_panel_vdd_on(struct intel_dp *intel_dp);
-static void ironlake_edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync);
-
 static int
 intel_dp_i2c_init(struct intel_dp *intel_dp,
                  struct intel_connector *intel_connector, const char *name)
@@ -1004,7 +1001,7 @@ static  u32 ironlake_get_pp_control(struct drm_i915_private *dev_priv)
        return control;
 }
 
-static void ironlake_edp_panel_vdd_on(struct intel_dp *intel_dp)
+void ironlake_edp_panel_vdd_on(struct intel_dp *intel_dp)
 {
        struct drm_device *dev = intel_dp->base.base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
@@ -1074,7 +1071,7 @@ static void ironlake_panel_vdd_work(struct work_struct *__work)
        mutex_unlock(&dev->mode_config.mutex);
 }
 
-static void ironlake_edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync)
+void ironlake_edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync)
 {
        if (!is_edp(intel_dp))
                return;
@@ -1097,7 +1094,7 @@ static void ironlake_edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync)
        }
 }
 
-static void ironlake_edp_panel_on(struct intel_dp *intel_dp)
+void ironlake_edp_panel_on(struct intel_dp *intel_dp)
 {
        struct drm_device *dev = intel_dp->base.base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
@@ -1139,7 +1136,7 @@ static void ironlake_edp_panel_on(struct intel_dp *intel_dp)
        }
 }
 
-static void ironlake_edp_panel_off(struct intel_dp *intel_dp)
+void ironlake_edp_panel_off(struct intel_dp *intel_dp)
 {
        struct drm_device *dev = intel_dp->base.base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index c953ea1..81d2020 100644 (file)
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -440,6 +440,10 @@ extern void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
 extern bool intel_dpd_is_edp(struct drm_device *dev);
 extern void ironlake_edp_backlight_on(struct intel_dp *intel_dp);
 extern void ironlake_edp_backlight_off(struct intel_dp *intel_dp);
+extern void ironlake_edp_panel_on(struct intel_dp *intel_dp);
+extern void ironlake_edp_panel_off(struct intel_dp *intel_dp);
+extern void ironlake_edp_panel_vdd_on(struct intel_dp *intel_dp);
+extern void ironlake_edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync);
 extern void intel_edp_link_config(struct intel_encoder *, int *, int *);
 extern int intel_edp_target_clock(struct intel_encoder *,
                                  struct drm_display_mode *mode);