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-rw-r--r--drivers/gpu/drm/i915/intel_display.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 81179fb..7e57eab 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -323,6 +323,9 @@ struct intel_limit {
#define IRONLAKE_DP_P1_MIN 1
#define IRONLAKE_DP_P1_MAX 2
+/* FDI */
+#define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */
+
static bool
intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
int target, int refclk, intel_clock_t *best_clock);
@@ -2421,8 +2424,8 @@ static bool intel_crtc_mode_fixup(struct drm_crtc *crtc,
struct drm_device *dev = crtc->dev;
if (HAS_PCH_SPLIT(dev)) {
/* FDI link clock is fixed at 2.7G */
- if (mode->clock * 3 > 27000 * 4)
- return MODE_CLOCK_HIGH;
+ if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4)
+ return false;
}
drm_mode_set_crtcinfo(adjusted_mode, 0);
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