drm/i915: compute the target_clock for edp directly
... instead of abusing mode->clock by storing it in there - we
shouldn't touch that one at all. This patch is the first prep step to
constify the mode argument of the intel_dp_mode_fixup function.
The next patch will stop us from modifying mode->clock.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 9f5148ac..0161d94 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4416,16 +4416,8 @@
/* CPU eDP doesn't require FDI link, so just set DP M/N
according to current link config */
if (is_cpu_edp) {
- target_clock = mode->clock;
intel_edp_link_config(edp_encoder, &lane, &link_bw);
} else {
- /* [e]DP over FDI requires target mode clock
- instead of link clock */
- if (is_dp)
- target_clock = mode->clock;
- else
- target_clock = adjusted_mode->clock;
-
/* 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
@@ -4436,6 +4428,14 @@
link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
}
+ /* [e]DP over FDI requires target mode clock instead of link clock. */
+ if (edp_encoder)
+ target_clock = intel_edp_target_clock(edp_encoder, mode);
+ else if (is_dp)
+ target_clock = mode->clock;
+ else
+ target_clock = adjusted_mode->clock;
+
/* determine panel color depth */
temp = I915_READ(PIPECONF(pipe));
temp &= ~PIPE_BPC_MASK;