drm/i915: Extract intel_crtc_compute_pipe_mode()

Pull intel_crtc_compute_pipe_mode() out from
intel_crtc_compute_config(). Since it's semi related
we'll suck in the max dotclock/double wide checks in
as well.

And we'll pimp the debugs while at it.

Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220223131315.18016-9-ville.syrjala@linux.intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 4d61f4b..3605e01 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2836,17 +2836,12 @@ static int intel_crtc_compute_pipe_src(struct intel_crtc_state *crtc_state)
        return 0;
 }
 
-static int intel_crtc_compute_config(struct intel_crtc *crtc,
-                                    struct intel_crtc_state *crtc_state)
+static int intel_crtc_compute_pipe_mode(struct intel_crtc_state *crtc_state)
 {
+       struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
        struct drm_i915_private *i915 = to_i915(crtc->base.dev);
        struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode;
        int clock_limit = i915->max_dotclk_freq;
-       int ret;
-
-       ret = intel_crtc_compute_pipe_src(crtc_state);
-       if (ret)
-               return ret;
 
        drm_mode_copy(pipe_mode, &crtc_state->hw.adjusted_mode);
 
@@ -2872,12 +2867,29 @@ static int intel_crtc_compute_config(struct intel_crtc *crtc,
 
        if (pipe_mode->crtc_clock > clock_limit) {
                drm_dbg_kms(&i915->drm,
-                           "requested pixel clock (%d kHz) too high (max: %d kHz, double wide: %s)\n",
+                           "[CRTC:%d:%s] requested pixel clock (%d kHz) too high (max: %d kHz, double wide: %s)\n",
+                           crtc->base.base.id, crtc->base.name,
                            pipe_mode->crtc_clock, clock_limit,
                            yesno(crtc_state->double_wide));
                return -EINVAL;
        }
 
+       return 0;
+}
+
+static int intel_crtc_compute_config(struct intel_crtc *crtc,
+                                    struct intel_crtc_state *crtc_state)
+{
+       int ret;
+
+       ret = intel_crtc_compute_pipe_src(crtc_state);
+       if (ret)
+               return ret;
+
+       ret = intel_crtc_compute_pipe_mode(crtc_state);
+       if (ret)
+               return ret;
+
        intel_crtc_compute_pixel_rate(crtc_state);
 
        if (crtc_state->has_pch_encoder)