From: Ville Syrjälä <ville.syrj...@linux.intel.com>
We're currently duplicating the DFP min/max TMDS clock checks
in .mode_valid() and .compute_config(). Extract a helper suitable
for both use cases.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_dp.c | 59 +++++++++++--------------
1 file changed, 26 insertions(+), 33 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c
b/drivers/gpu/drm/i915/display/intel_dp.c
index 45e4bf54e1de..b3b8e74fac9c 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -781,6 +781,25 @@ static bool intel_dp_hdisplay_bad(struct drm_i915_private
*dev_priv,
return hdisplay == 4096 && !HAS_DDI(dev_priv);
}
+static enum drm_mode_status
+intel_dp_tmds_clock_valid(struct intel_dp *intel_dp,
+ int clock, int bpc, bool ycbcr420_output)
+{
+ int tmds_clock;
+
+ tmds_clock = intel_hdmi_tmds_clock(clock, bpc, ycbcr420_output);
+
+ if (intel_dp->dfp.min_tmds_clock &&
+ tmds_clock < intel_dp->dfp.min_tmds_clock)
+ return MODE_CLOCK_LOW;
+
+ if (intel_dp->dfp.max_tmds_clock &&
+ tmds_clock > intel_dp->dfp.max_tmds_clock)
+ return MODE_CLOCK_HIGH;
+
+ return MODE_OK;
+}
+
static enum drm_mode_status
intel_dp_mode_valid_downstream(struct intel_connector *connector,
const struct drm_display_mode *mode,
@@ -788,7 +807,6 @@ intel_dp_mode_valid_downstream(struct intel_connector
*connector,
{
struct intel_dp *intel_dp = intel_attached_dp(connector);
const struct drm_display_info *info = &connector->base.display_info;
- int tmds_clock;
/* If PCON supports FRL MODE, check FRL bandwidth constraints */
if (intel_dp->dfp.pcon_max_frl_bw) {
@@ -814,17 +832,8 @@ intel_dp_mode_valid_downstream(struct intel_connector
*connector,
return MODE_CLOCK_HIGH;
/* Assume 8bpc for the DP++/HDMI/DVI TMDS clock check */
- tmds_clock = intel_hdmi_tmds_clock(target_clock, 8,
- drm_mode_is_420_only(info, mode));
-
- if (intel_dp->dfp.min_tmds_clock &&
- tmds_clock < intel_dp->dfp.min_tmds_clock)
- return MODE_CLOCK_LOW;
- if (intel_dp->dfp.max_tmds_clock &&
- tmds_clock > intel_dp->dfp.max_tmds_clock)
- return MODE_CLOCK_HIGH;
-
- return MODE_OK;
+ return intel_dp_tmds_clock_valid(intel_dp, target_clock, 8,
+ drm_mode_is_420_only(info, mode));
}
static bool intel_dp_need_bigjoiner(struct intel_dp *intel_dp,
@@ -1069,32 +1078,16 @@ static bool intel_dp_hdmi_ycbcr420(struct intel_dp
*intel_dp,
intel_dp->dfp.ycbcr_444_to_420);
}
-static bool intel_dp_hdmi_tmds_clock_valid(struct intel_dp *intel_dp,
- const struct intel_crtc_state
*crtc_state, int bpc)
-{
- int clock = crtc_state->hw.adjusted_mode.crtc_clock;
- int tmds_clock = intel_hdmi_tmds_clock(clock, bpc,
- intel_dp_hdmi_ycbcr420(intel_dp,
crtc_state));
-
- if (intel_dp->dfp.min_tmds_clock &&
- tmds_clock < intel_dp->dfp.min_tmds_clock)
- return false;
-
- if (intel_dp->dfp.max_tmds_clock &&
- tmds_clock > intel_dp->dfp.max_tmds_clock)
- return false;
-
- return true;
-}
-
static bool intel_dp_hdmi_bpc_possible(struct intel_dp *intel_dp,
const struct intel_crtc_state
*crtc_state,
int bpc)
{
+ bool ycbcr420_output = intel_dp_hdmi_ycbcr420(intel_dp, crtc_state);
+ int clock = crtc_state->hw.adjusted_mode.crtc_clock;
- return intel_hdmi_bpc_possible(crtc_state, bpc, intel_dp->has_hdmi_sink,
- intel_dp_hdmi_ycbcr420(intel_dp,
crtc_state)) &&
- intel_dp_hdmi_tmds_clock_valid(intel_dp, crtc_state, bpc);
+ return intel_hdmi_bpc_possible(crtc_state, bpc,
+ intel_dp->has_hdmi_sink,
ycbcr420_output) &&
+ intel_dp_tmds_clock_valid(intel_dp, clock, bpc,
ycbcr420_output) == MODE_OK;
}
static int intel_dp_max_bpp(struct intel_dp *intel_dp,
--
2.32.0
