[PATCH v3 1/2] drm/i915/alpm: Make intel_alpm_enable_sink available for PSR

[Jouni Högander]

We want to enable sink ALPM from PSR code. Make intel_alpm_enable_sink
available for PSR.

Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
---
 drivers/gpu/drm/i915/display/intel_alpm.c | 11 +++++++++--
 drivers/gpu/drm/i915/display/intel_alpm.h |  2 ++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_alpm.c b/drivers/gpu/drm/i915/display/intel_alpm.c
index 1bf08b80c23f..9442483058d2 100644
--- a/drivers/gpu/drm/i915/display/intel_alpm.c
+++ b/drivers/gpu/drm/i915/display/intel_alpm.c
@@ -426,8 +426,15 @@ void intel_alpm_pre_plane_update(struct intel_atomic_state *state,
 	}
 }
 
-static void intel_alpm_enable_sink(struct intel_dp *intel_dp,
-				   const struct intel_crtc_state *crtc_state)
+/**
+ * intel_alpm_enable_sink - Enable ALPM on sink
+ * @intel_dp: Intel DP struct
+ * @crtc_state: Intel CRTC struct
+ *
+ * This function is enabling DPCD on sink based on information from crtc_state.
+ */
+void intel_alpm_enable_sink(struct intel_dp *intel_dp,
+			    const struct intel_crtc_state *crtc_state)
 {
 	u8 val;
 
diff --git a/drivers/gpu/drm/i915/display/intel_alpm.h b/drivers/gpu/drm/i915/display/intel_alpm.h
index d7126d65b60f..c9fe21e3e72c 100644
--- a/drivers/gpu/drm/i915/display/intel_alpm.h
+++ b/drivers/gpu/drm/i915/display/intel_alpm.h
@@ -23,6 +23,8 @@ void intel_alpm_lobf_compute_config(struct intel_dp *intel_dp,
 				    struct drm_connector_state *conn_state);
 void intel_alpm_configure(struct intel_dp *intel_dp,
 			  const struct intel_crtc_state *crtc_state);
+void intel_alpm_enable_sink(struct intel_dp *intel_dp,
+			    const struct intel_crtc_state *crtc_state);
 void intel_alpm_pre_plane_update(struct intel_atomic_state *state,
 				 struct intel_crtc *crtc);
 void intel_alpm_post_plane_update(struct intel_atomic_state *state,
-- 
2.43.0