summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/i915/intel_bios.c
diff options
context:
space:
mode:
authorDave Airlie <airlied@redhat.com>2010-10-26 09:23:22 +1000
committerDave Airlie <airlied@redhat.com>2010-10-26 09:23:22 +1000
commite3ce8a0b277438591844847ac7c89a980b4cfa6d (patch)
treec9bf47675403a54be2e0c54df9357d2b9c65326b /drivers/gpu/drm/i915/intel_bios.c
parente1efc9b6ac22c605fd326b3f6af9b393325d43b4 (diff)
parent641934069d29211baf82afb93622a426172b67b6 (diff)
Merge remote branch 'intel/drm-intel-next' of ../drm-next into drm-core-next
* 'intel/drm-intel-next' of ../drm-next: (63 commits) drm/i915: Move gpu_write_list to per-ring drm/i915: Invalidate the to-ring, flush the old-ring when updating domains drm/i915/ringbuffer: Write the value passed in to the tail register agp/intel: Restore valid PTE bit for Sandybridge after bdd3072 drm/i915: Fix flushing regression from 9af90d19f drm/i915/sdvo: Remove unused encoding member i915: enable AVI infoframe for intel_hdmi.c [v4] drm/i915: Fix current fb blocking for page flip drm/i915: IS_IRONLAKE is synonymous with gen == 5 drm/i915: Enable SandyBridge blitter ring drm/i915/ringbuffer: Remove broken intel_fill_struct() drm/i915/ringbuffer: Fix emit batch buffer regression from 8187a2b drm/i915: Copy the updated reloc->presumed_offset back to the user drm/i915: Track objects in global active list (as well as per-ring) drm/i915: Simplify most HAS_BSD() checks drm/i915: cache the last object lookup during pin_and_relocate() drm/i915: Do interrupible mutex lock first to avoid locking for unreference drivers: gpu: drm: i915: Fix a typo. agp/intel: Also add B43.1 to list of supported devices drm/i915: rearrange mutex acquisition for pread ...
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
-rw-r--r--drivers/gpu/drm/i915/intel_bios.c85
1 files changed, 70 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index b1f73ac0f3fd..b0b1200ed650 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -24,6 +24,7 @@
* Eric Anholt <eric@anholt.net>
*
*/
+#include <drm/drm_dp_helper.h>
#include "drmP.h"
#include "drm.h"
#include "i915_drm.h"
@@ -264,10 +265,10 @@ parse_general_features(struct drm_i915_private *dev_priv,
dev_priv->lvds_use_ssc = general->enable_ssc;
if (dev_priv->lvds_use_ssc) {
- if (IS_I85X(dev_priv->dev))
+ if (IS_I85X(dev))
dev_priv->lvds_ssc_freq =
general->ssc_freq ? 66 : 48;
- else if (IS_IRONLAKE(dev_priv->dev) || IS_GEN6(dev))
+ else if (IS_GEN5(dev) || IS_GEN6(dev))
dev_priv->lvds_ssc_freq =
general->ssc_freq ? 100 : 120;
else
@@ -413,6 +414,8 @@ static void
parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
{
struct bdb_edp *edp;
+ struct edp_power_seq *edp_pps;
+ struct edp_link_params *edp_link_params;
edp = find_section(bdb, BDB_EDP);
if (!edp) {
@@ -437,19 +440,54 @@ parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
break;
}
- dev_priv->edp.rate = edp->link_params[panel_type].rate;
- dev_priv->edp.lanes = edp->link_params[panel_type].lanes;
- dev_priv->edp.preemphasis = edp->link_params[panel_type].preemphasis;
- dev_priv->edp.vswing = edp->link_params[panel_type].vswing;
+ /* Get the eDP sequencing and link info */
+ edp_pps = &edp->power_seqs[panel_type];
+ edp_link_params = &edp->link_params[panel_type];
- DRM_DEBUG_KMS("eDP vBIOS settings: bpp=%d, rate=%d, lanes=%d, preemphasis=%d, vswing=%d\n",
- dev_priv->edp.bpp,
- dev_priv->edp.rate,
- dev_priv->edp.lanes,
- dev_priv->edp.preemphasis,
- dev_priv->edp.vswing);
+ dev_priv->edp.pps = *edp_pps;
- dev_priv->edp.initialized = true;
+ dev_priv->edp.rate = edp_link_params->rate ? DP_LINK_BW_2_7 :
+ DP_LINK_BW_1_62;
+ switch (edp_link_params->lanes) {
+ case 0:
+ dev_priv->edp.lanes = 1;
+ break;
+ case 1:
+ dev_priv->edp.lanes = 2;
+ break;
+ case 3:
+ default:
+ dev_priv->edp.lanes = 4;
+ break;
+ }
+ switch (edp_link_params->preemphasis) {
+ case 0:
+ dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_0;
+ break;
+ case 1:
+ dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_3_5;
+ break;
+ case 2:
+ dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_6;
+ break;
+ case 3:
+ dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_9_5;
+ break;
+ }
+ switch (edp_link_params->vswing) {
+ case 0:
+ dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_400;
+ break;
+ case 1:
+ dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_600;
+ break;
+ case 2:
+ dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_800;
+ break;
+ case 3:
+ dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_1200;
+ break;
+ }
}
static void
@@ -539,7 +577,7 @@ init_vbt_defaults(struct drm_i915_private *dev_priv)
}
/**
- * intel_init_bios - initialize VBIOS settings & find VBT
+ * intel_parse_bios - find VBT and initialize settings from the BIOS
* @dev: DRM device
*
* Loads the Video BIOS and checks that the VBT exists. Sets scratch registers
@@ -548,7 +586,7 @@ init_vbt_defaults(struct drm_i915_private *dev_priv)
* Returns 0 on success, nonzero on failure.
*/
bool
-intel_init_bios(struct drm_device *dev)
+intel_parse_bios(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct pci_dev *pdev = dev->pdev;
@@ -609,3 +647,20 @@ intel_init_bios(struct drm_device *dev)
return 0;
}
+
+/* Ensure that vital registers have been initialised, even if the BIOS
+ * is absent or just failing to do its job.
+ */
+void intel_setup_bios(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ /* Set the Panel Power On/Off timings if uninitialized. */
+ if ((I915_READ(PP_ON_DELAYS) == 0) && (I915_READ(PP_OFF_DELAYS) == 0)) {
+ /* Set T2 to 40ms and T5 to 200ms */
+ I915_WRITE(PP_ON_DELAYS, 0x019007d0);
+
+ /* Set T3 to 35ms and Tx to 200ms */
+ I915_WRITE(PP_OFF_DELAYS, 0x015e07d0);
+ }
+}