[Intel-gfx] [PATCH] drm/i915: Adding debug code for dp_m2_n2 in crtc_config

[Vandana Kannan]

Adding relevant read out comparison code, in check_crtc_state, for the new
member of crtc_config, dp_m2_n2, which was introduced to store link_m_n
values for a DP downclock mode (if available). Suggested by Daniel.

Signed-off-by: Vandana Kannan <vandana.kannan at intel.com>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/intel_display.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 1af1d14..36fc034 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9199,6 +9199,15 @@ static void intel_dump_pipe_config(struct intel_crtc *crtc,
 		      pipe_config->dp_m_n.gmch_m, pipe_config->dp_m_n.gmch_n,
 		      pipe_config->dp_m_n.link_m, pipe_config->dp_m_n.link_n,
 		      pipe_config->dp_m_n.tu);
+
+	DRM_DEBUG_KMS("dp: %i, gmch_m2: %u, gmch_n2: %u, link_m2: %u, link_n2: %u, tu2: %u\n",
+		      pipe_config->has_dp_encoder,
+		      pipe_config->dp_m2_n2.gmch_m,
+		      pipe_config->dp_m2_n2.gmch_n,
+		      pipe_config->dp_m2_n2.link_m,
+		      pipe_config->dp_m2_n2.link_n,
+		      pipe_config->dp_m2_n2.tu);
+
 	DRM_DEBUG_KMS("requested mode:\n");
 	drm_mode_debug_printmodeline(&pipe_config->requested_mode);
 	DRM_DEBUG_KMS("adjusted mode:\n");
@@ -9619,6 +9628,12 @@ intel_pipe_config_compare(struct drm_device *dev,
 	PIPE_CONF_CHECK_I(dp_m_n.link_n);
 	PIPE_CONF_CHECK_I(dp_m_n.tu);
 
+	PIPE_CONF_CHECK_I(dp_m2_n2.gmch_m);
+	PIPE_CONF_CHECK_I(dp_m2_n2.gmch_n);
+	PIPE_CONF_CHECK_I(dp_m2_n2.link_m);
+	PIPE_CONF_CHECK_I(dp_m2_n2.link_n);
+	PIPE_CONF_CHECK_I(dp_m2_n2.tu);
+
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start);
-- 
1.9.1