drm/i915/dp: Refactor intel_dp_in_hdr_mode() for broader reuse

The intel_dp_in_hdr_mode() helper was previously defined in
intel_dp_aux_backlight.c but is generally useful beyond that
context. Move the function to intel_dp.c and declare it in
intel_dp.h to make it accessible to other DP-related code
paths that need to check HDR metadata state.

This is a pure refactor with no functional change and
prepares for a follow-up patch that uses this helper.

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://lore.kernel.org/r/20250730055523.2214966-2-chaitanya.kumar.borah@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 625036c47bdf2c3aeec92d9a582b391b765191a4..8a155bc958f063609197b5c430e771a11b5764cf 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2917,6 +2917,19 @@ static void intel_dp_compute_vsc_sdp(struct intel_dp *intel_dp,
        }
 }
 
+bool
+intel_dp_in_hdr_mode(const struct drm_connector_state *conn_state)
+{
+       struct hdr_output_metadata *hdr_metadata;
+
+       if (!conn_state->hdr_output_metadata)
+               return false;
+
+       hdr_metadata = conn_state->hdr_output_metadata->data;
+
+       return hdr_metadata->hdmi_metadata_type1.eotf == HDMI_EOTF_SMPTE_ST2084;
+}
+
 static void
 intel_dp_compute_hdr_metadata_infoframe_sdp(struct intel_dp *intel_dp,
                                            struct intel_crtc_state *crtc_state,

diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index 0657f568119662828344cfddbe876f2acf2596d9..5def589e3c0e8378b933995aa3b7333f788ca385 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -214,5 +214,6 @@ int intel_dp_compute_min_hblank(struct intel_crtc_state *crtc_state,
 
 int intel_dp_dsc_bpp_step_x16(const struct intel_connector *connector);
 void intel_dp_dpcd_set_probe(struct intel_dp *intel_dp, bool force_on_external);
+bool intel_dp_in_hdr_mode(const struct drm_connector_state *conn_state);
 
 #endif /* __INTEL_DP_H__ */

diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
index 271b27c9de5125667d0afdf8122883c632dac588..f665d845c8098f6bf586d6bea0fd7085e2ff7276 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
@@ -225,19 +225,6 @@ intel_dp_aux_hdr_set_aux_backlight(const struct drm_connector_state *conn_state,
                        connector->base.base.id, connector->base.name);
 }
 
-static bool
-intel_dp_in_hdr_mode(const struct drm_connector_state *conn_state)
-{
-       struct hdr_output_metadata *hdr_metadata;
-
-       if (!conn_state->hdr_output_metadata)
-               return false;
-
-       hdr_metadata = conn_state->hdr_output_metadata->data;
-
-       return hdr_metadata->hdmi_metadata_type1.eotf == HDMI_EOTF_SMPTE_ST2084;
-}
-
 static void
 intel_dp_aux_hdr_set_backlight(const struct drm_connector_state *conn_state, u32 level)
 {