Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / i915 / intel_display.c

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 8b2038706268663e835615ffc550cbbcf1e9238c..a2834276cb38637949648dad2ae2b59de8995fbf 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -217,7 +217,7 @@ bool intel_pipe_has_type (struct drm_crtc *crtc, int type)
     return false;
 }
 
-#define INTELPllInvalid(s)   { /* ErrorF (s) */; return false; }
+#define INTELPllInvalid(s)   do { /* DRM_DEBUG(s); */ return false; } while (0)
 /**
  * Returns whether the given set of divisors are valid for a given refclk with
  * the given connectors.
@@ -726,7 +726,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
        int dspsize_reg = (pipe == 0) ? DSPASIZE : DSPBSIZE;
        int dsppos_reg = (pipe == 0) ? DSPAPOS : DSPBPOS;
        int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC;
-       int refclk;
+       int refclk, num_outputs = 0;
        intel_clock_t clock;
        u32 dpll = 0, fp = 0, dspcntr, pipeconf;
        bool ok, is_sdvo = false, is_dvo = false;
@@ -763,9 +763,14 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                        is_crt = true;
                        break;
                }
+
+               num_outputs++;
        }
 
-       if (IS_I9XX(dev)) {
+       if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2) {
+               refclk = dev_priv->lvds_ssc_freq * 1000;
+               DRM_DEBUG("using SSC reference clock of %d MHz\n", refclk / 1000);
+       } else if (IS_I9XX(dev)) {
                refclk = 96000;
        } else {
                refclk = 48000;
@@ -824,11 +829,14 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                }
        }
 
-       if (is_tv) {
+       if (is_sdvo && is_tv)
+               dpll |= PLL_REF_INPUT_TVCLKINBC;
+       else if (is_tv)
                /* XXX: just matching BIOS for now */
-/*     dpll |= PLL_REF_INPUT_TVCLKINBC; */
+               /*      dpll |= PLL_REF_INPUT_TVCLKINBC; */
                dpll |= 3;
-       }
+       else if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2)
+               dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
        else
                dpll |= PLL_REF_INPUT_DREFCLK;
 
@@ -1000,6 +1008,7 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
                temp = CURSOR_MODE_DISABLE;
                addr = 0;
                bo = NULL;
+               mutex_lock(&dev->struct_mutex);
                goto finish;
        }
 
@@ -1598,7 +1607,9 @@ intel_user_framebuffer_create(struct drm_device *dev,
 
        ret = intel_framebuffer_create(dev, mode_cmd, &fb, obj);
        if (ret) {
+               mutex_lock(&dev->struct_mutex);
                drm_gem_object_unreference(obj);
+               mutex_unlock(&dev->struct_mutex);
                return NULL;
        }