6 files changed, 59 insertions, 26 deletions

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index c9bfd83dde64..61ae104dca8c 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1505,7 +1505,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                 goto put_gmch;
         }
 
-        i915_kick_out_firmware_fb(dev_priv);
+        if (drm_core_check_feature(dev, DRIVER_MODESET))
+                i915_kick_out_firmware_fb(dev_priv);
 
         pci_set_master(dev->pdev);
 
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index f78061af7045..b726b478a4f5 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -729,7 +729,7 @@ void intel_crt_init(struct drm_device *dev)
 
         crt->base.type = INTEL_OUTPUT_ANALOG;
         crt->base.cloneable = true;
-        if (IS_HASWELL(dev))
+        if (IS_HASWELL(dev) || IS_I830(dev))
                 crt->base.crtc_mask = (1 << 0);
         else
                 crt->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index 495625914e4a..d7bc817f51a0 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -341,9 +341,17 @@ static int intel_overlay_off(struct intel_overlay *overlay)
         intel_ring_emit(ring, flip_addr);
         intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
         /* turn overlay off */
-        intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
-        intel_ring_emit(ring, flip_addr);
-        intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
+        if (IS_I830(dev)) {
+                /* Workaround: Don't disable the overlay fully, since otherwise
+                 * it dies on the next OVERLAY_ON cmd. */
+                intel_ring_emit(ring, MI_NOOP);
+                intel_ring_emit(ring, MI_NOOP);
+                intel_ring_emit(ring, MI_NOOP);
+        } else {
+                intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
+                intel_ring_emit(ring, flip_addr);
+                intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
+        }
         intel_ring_advance(ring);
 
         return intel_overlay_do_wait_request(overlay, intel_overlay_off_tail);
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index e019b2369861..e2aacd329545 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -435,7 +435,7 @@ int intel_panel_setup_backlight(struct drm_device *dev)
         props.type = BACKLIGHT_RAW;
         props.max_brightness = _intel_panel_get_max_backlight(dev);
         if (props.max_brightness == 0) {
-                DRM_ERROR("Failed to get maximum backlight value\n");
+                DRM_DEBUG_DRIVER("Failed to get maximum backlight value\n");
                 return -ENODEV;
         }
         dev_priv->backlight =
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index c01d97db0061..79d308da29ff 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -894,6 +894,45 @@ static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 }
 #endif
 
+static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
+                                       unsigned if_index, uint8_t tx_rate,
+                                       uint8_t *data, unsigned length)
+{
+        uint8_t set_buf_index[2] = { if_index, 0 };
+        uint8_t hbuf_size, tmp[8];
+        int i;
+
+        if (!intel_sdvo_set_value(intel_sdvo,
+                                  SDVO_CMD_SET_HBUF_INDEX,
+                                  set_buf_index, 2))
+                return false;
+
+        if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HBUF_INFO,
+                                  &hbuf_size, 1))
+                return false;
+
+        /* Buffer size is 0 based, hooray! */
+        hbuf_size++;
+
+        DRM_DEBUG_KMS("writing sdvo hbuf: %i, hbuf_size %i, hbuf_size: %i\n",
+                      if_index, length, hbuf_size);
+
+        for (i = 0; i < hbuf_size; i += 8) {
+                memset(tmp, 0, 8);
+                if (i < length)
+                        memcpy(tmp, data + i, min_t(unsigned, 8, length - i));
+
+                if (!intel_sdvo_set_value(intel_sdvo,
+                                          SDVO_CMD_SET_HBUF_DATA,
+                                          tmp, 8))
+                        return false;
+        }
+
+        return intel_sdvo_set_value(intel_sdvo,
+                                    SDVO_CMD_SET_HBUF_TXRATE,
+                                    &tx_rate, 1);
+}
+
 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
 {
         struct dip_infoframe avi_if = {
@@ -901,11 +940,7 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
                 .ver = DIP_VERSION_AVI,
                 .len = DIP_LEN_AVI,
         };
-        uint8_t tx_rate = SDVO_HBUF_TX_VSYNC;
-        uint8_t set_buf_index[2] = { 1, 0 };
         uint8_t sdvo_data[4 + sizeof(avi_if.body.avi)];
-        uint64_t *data = (uint64_t *)sdvo_data;
-        unsigned i;
 
         intel_dip_infoframe_csum(&avi_if);
 
@@ -915,22 +950,9 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
         sdvo_data[3] = avi_if.checksum;
         memcpy(&sdvo_data[4], &avi_if.body, sizeof(avi_if.body.avi));
 
-        if (!intel_sdvo_set_value(intel_sdvo,
-                                  SDVO_CMD_SET_HBUF_INDEX,
-                                  set_buf_index, 2))
-                return false;
-
-        for (i = 0; i < sizeof(sdvo_data); i += 8) {
-                if (!intel_sdvo_set_value(intel_sdvo,
-                                          SDVO_CMD_SET_HBUF_DATA,
-                                          data, 8))
-                        return false;
-                data++;
-        }
-
-        return intel_sdvo_set_value(intel_sdvo,
-                                    SDVO_CMD_SET_HBUF_TXRATE,
-                                    &tx_rate, 1);
+        return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
+                                          SDVO_HBUF_TX_VSYNC,
+                                          sdvo_data, sizeof(sdvo_data));
 }
 
 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
diff --git a/drivers/gpu/drm/i915/intel_sdvo_regs.h b/drivers/gpu/drm/i915/intel_sdvo_regs.h
index 9d030142ee43..770bdd6ecd9f 100644
--- a/drivers/gpu/drm/i915/intel_sdvo_regs.h
+++ b/drivers/gpu/drm/i915/intel_sdvo_regs.h
@@ -708,6 +708,8 @@ struct intel_sdvo_enhancements_arg {
 #define SDVO_CMD_SET_AUDIO_STAT         0x91
 #define SDVO_CMD_GET_AUDIO_STAT         0x92
 #define SDVO_CMD_SET_HBUF_INDEX         0x93
+  #define SDVO_HBUF_INDEX_ELD           0
+  #define SDVO_HBUF_INDEX_AVI_IF        1
 #define SDVO_CMD_GET_HBUF_INDEX         0x94
 #define SDVO_CMD_GET_HBUF_INFO          0x95
 #define SDVO_CMD_SET_HBUF_AV_SPLIT      0x96