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authorLinus Torvalds <torvalds@linux-foundation.org>2010-01-16 10:44:38 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-01-16 10:44:38 -0800
commit33f724eb9e3d6e33aad410318d3ac720fecbdbcd (patch)
treead0824aec7e1e89276ca4e0b3e63d067f0d34e4c /drivers/gpu/drm/i915/intel_dp.c
parent9ddabb6700f82a033a76bcf7a547204fa12aaa17 (diff)
parent9b974cc17166d31afed2638d56bdbf9829afbfaa (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: drm/i915: enable 36bit physical address for hardware status page drm/i915: fix eDP pipe mask drm/i915: fix pixel color depth setting on eDP drm/i915: parse eDP panel color depth from VBT block drm/i915: disable LVDS downclock by default drm/i915: Fix the incorrect cursor A bit definition in DSPFW2 register drm/i915: Remove chatty execbuf failure message. drm/i915: remove loop in Ironlake interrupt handler drm/i915: Don't wait interruptible for possible plane buffer flush drm/i915: try another possible DDC bus for the SDVO device with multiple outputs drm/i915: Read the response after issuing DDC bus switch command drm/i915: Don't use the child device parsed from VBT to setup HDMI/DP drm/i915: Fix resume regression on MSI Wind U100 w/o KMS drm/i915: Fix Ironlake M/N/P ranges to match the spec drm/i915: Use find_pll function to calculate DPLL setting for LVDS downclock drm/i915: Add HP nx9020/SamsungSX20S to ACPI LID quirk list drm/i915: disable TV hotplug status check Trivial conflicts in drivers/gpu/drm/i915/i915_drv.c due to i915 non-modeset suspend fix with different comment.
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c75
1 files changed, 16 insertions, 59 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 1349d9fd01c4..439506cefc14 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -125,9 +125,15 @@ intel_dp_link_clock(uint8_t link_bw)
/* I think this is a fiction */
static int
-intel_dp_link_required(int pixel_clock)
+intel_dp_link_required(struct drm_device *dev,
+ struct intel_output *intel_output, int pixel_clock)
{
- return pixel_clock * 3;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (IS_eDP(intel_output))
+ return (pixel_clock * dev_priv->edp_bpp) / 8;
+ else
+ return pixel_clock * 3;
}
static int
@@ -138,7 +144,8 @@ intel_dp_mode_valid(struct drm_connector *connector,
int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_output));
int max_lanes = intel_dp_max_lane_count(intel_output);
- if (intel_dp_link_required(mode->clock) > max_link_clock * max_lanes)
+ if (intel_dp_link_required(connector->dev, intel_output, mode->clock)
+ > max_link_clock * max_lanes)
return MODE_CLOCK_HIGH;
if (mode->clock < 10000)
@@ -492,7 +499,8 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
for (clock = 0; clock <= max_clock; clock++) {
int link_avail = intel_dp_link_clock(bws[clock]) * lane_count;
- if (intel_dp_link_required(mode->clock) <= link_avail) {
+ if (intel_dp_link_required(encoder->dev, intel_output, mode->clock)
+ <= link_avail) {
dp_priv->link_bw = bws[clock];
dp_priv->lane_count = lane_count;
adjusted_mode->clock = intel_dp_link_clock(dp_priv->link_bw);
@@ -1289,53 +1297,7 @@ intel_dp_hot_plug(struct intel_output *intel_output)
if (dp_priv->dpms_mode == DRM_MODE_DPMS_ON)
intel_dp_check_link_status(intel_output);
}
-/*
- * Enumerate the child dev array parsed from VBT to check whether
- * the given DP is present.
- * If it is present, return 1.
- * If it is not present, return false.
- * If no child dev is parsed from VBT, it is assumed that the given
- * DP is present.
- */
-static int dp_is_present_in_vbt(struct drm_device *dev, int dp_reg)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct child_device_config *p_child;
- int i, dp_port, ret;
-
- if (!dev_priv->child_dev_num)
- return 1;
-
- dp_port = 0;
- if (dp_reg == DP_B || dp_reg == PCH_DP_B)
- dp_port = PORT_IDPB;
- else if (dp_reg == DP_C || dp_reg == PCH_DP_C)
- dp_port = PORT_IDPC;
- else if (dp_reg == DP_D || dp_reg == PCH_DP_D)
- dp_port = PORT_IDPD;
-
- ret = 0;
- for (i = 0; i < dev_priv->child_dev_num; i++) {
- p_child = dev_priv->child_dev + i;
- /*
- * If the device type is not DP, continue.
- */
- if (p_child->device_type != DEVICE_TYPE_DP &&
- p_child->device_type != DEVICE_TYPE_eDP)
- continue;
- /* Find the eDP port */
- if (dp_reg == DP_A && p_child->device_type == DEVICE_TYPE_eDP) {
- ret = 1;
- break;
- }
- /* Find the DP port */
- if (p_child->dvo_port == dp_port) {
- ret = 1;
- break;
- }
- }
- return ret;
-}
+
void
intel_dp_init(struct drm_device *dev, int output_reg)
{
@@ -1345,10 +1307,6 @@ intel_dp_init(struct drm_device *dev, int output_reg)
struct intel_dp_priv *dp_priv;
const char *name = NULL;
- if (!dp_is_present_in_vbt(dev, output_reg)) {
- DRM_DEBUG_KMS("DP is not present. Ignore it\n");
- return;
- }
intel_output = kcalloc(sizeof(struct intel_output) +
sizeof(struct intel_dp_priv), 1, GFP_KERNEL);
if (!intel_output)
@@ -1373,11 +1331,10 @@ intel_dp_init(struct drm_device *dev, int output_reg)
else if (output_reg == DP_D || output_reg == PCH_DP_D)
intel_output->clone_mask = (1 << INTEL_DP_D_CLONE_BIT);
- if (IS_eDP(intel_output)) {
- intel_output->crtc_mask = (1 << 1);
+ if (IS_eDP(intel_output))
intel_output->clone_mask = (1 << INTEL_EDP_CLONE_BIT);
- } else
- intel_output->crtc_mask = (1 << 0) | (1 << 1);
+
+ intel_output->crtc_mask = (1 << 0) | (1 << 1);
connector->interlace_allowed = true;
connector->doublescan_allowed = 0;