Now that it's split up, we can easily move it around and precompute
the fdi lane configuration.
Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch>
---
drivers/gpu/drm/i915/intel_display.c | 71 +++++++++++++++++-------------------
1 file changed, 34 insertions(+), 37 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 7abcd60..8e10e1b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3955,6 +3955,37 @@ bool intel_connector_get_hw_state(struct intel_connector
*connector)
return encoder->get_hw_state(encoder, &pipe);
}
+static void ironlake_fdi_compute_config(struct drm_device *dev,
+ struct intel_crtc_config *pipe_config)
+{
+ struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
+ int target_clock, lane, link_bw;
+
+ /* FDI is a binary signal running at ~2.7GHz, encoding
+ * each output octet as 10 bits. The actual frequency
+ * is stored as a divider into a 100MHz clock, and the
+ * mode pixel clock is stored in units of 1KHz.
+ * Hence the bw of each lane in terms of the mode signal
+ * is:
+ */
+ link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
+
+ if (pipe_config->pixel_target_clock)
+ target_clock = pipe_config->pixel_target_clock;
+ else
+ target_clock = adjusted_mode->clock;
+
+ lane = ironlake_get_lanes_required(target_clock, link_bw,
+ pipe_config->pipe_bpp);
+
+ pipe_config->fdi_lanes = lane;
+
+ if (pipe_config->pixel_multiplier > 1)
+ link_bw *= pipe_config->pixel_multiplier;
+ intel_link_compute_m_n(pipe_config->pipe_bpp, lane, target_clock,
+ link_bw, &pipe_config->fdi_m_n);
+}
+
static bool intel_crtc_compute_config(struct drm_crtc *crtc,
struct intel_crtc_config *pipe_config)
{
@@ -3989,6 +4020,9 @@ static bool intel_crtc_compute_config(struct drm_crtc
*crtc,
pipe_config->pipe_bpp = 8*3;
}
+ if (pipe_config->has_pch_encoder)
+ ironlake_fdi_compute_config(dev, pipe_config);
+
return true;
}
@@ -5480,38 +5514,6 @@ void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc,
}
}
-static void ironlake_fdi_compute_config(struct intel_crtc *intel_crtc)
-{
- struct drm_device *dev = intel_crtc->base.dev;
- struct drm_display_mode *adjusted_mode =
- &intel_crtc->config.adjusted_mode;
- int target_clock, lane, link_bw;
-
- /* FDI is a binary signal running at ~2.7GHz, encoding
- * each output octet as 10 bits. The actual frequency
- * is stored as a divider into a 100MHz clock, and the
- * mode pixel clock is stored in units of 1KHz.
- * Hence the bw of each lane in terms of the mode signal
- * is:
- */
- link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
-
- if (intel_crtc->config.pixel_target_clock)
- target_clock = intel_crtc->config.pixel_target_clock;
- else
- target_clock = adjusted_mode->clock;
-
- lane = ironlake_get_lanes_required(target_clock, link_bw,
- intel_crtc->config.pipe_bpp);
-
- intel_crtc->config.fdi_lanes = lane;
-
- if (intel_crtc->config.pixel_multiplier > 1)
- link_bw *= intel_crtc->config.pixel_multiplier;
- intel_link_compute_m_n(intel_crtc->config.pipe_bpp, lane, target_clock,
- link_bw, &intel_crtc->config.fdi_m_n);
-}
-
static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
{
return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
@@ -5730,10 +5732,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
/* Note, this also computes intel_crtc->fdi_lanes which is used below in
* ironlake_check_fdi_lanes. */
- intel_crtc->config.fdi_lanes = 0;
if (intel_crtc->config.has_pch_encoder) {
- ironlake_fdi_compute_config(intel_crtc);
-
intel_cpu_transcoder_set_m_n(intel_crtc,
&intel_crtc->config.fdi_m_n);
}
@@ -5867,8 +5866,6 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc,
intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
if (intel_crtc->config.has_pch_encoder) {
- ironlake_fdi_compute_config(intel_crtc);
-
intel_cpu_transcoder_set_m_n(intel_crtc,
&intel_crtc->config.fdi_m_n);
}
--
1.7.11.7
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