drm/gma500: Add generic encoder functions

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

3 files changed, 55 insertions, 0 deletions

diff --git a/drivers/gpu/drm/gma500/gma_display.c b/drivers/gpu/drm/gma500/gma_display.c
index 40894c206098..98a0eec38cbe 100644
--- a/drivers/gpu/drm/gma500/gma_display.c
+++ b/drivers/gpu/drm/gma500/gma_display.c
@@ -519,6 +519,47 @@ void gma_crtc_destroy(struct drm_crtc *crtc)
         kfree(psb_intel_crtc);
 }
 
+void gma_encoder_prepare(struct drm_encoder *encoder)
+{
+        struct drm_encoder_helper_funcs *encoder_funcs =
+            encoder->helper_private;
+        /* lvds has its own version of prepare see psb_intel_lvds_prepare */
+        encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
+}
+
+void gma_encoder_commit(struct drm_encoder *encoder)
+{
+        struct drm_encoder_helper_funcs *encoder_funcs =
+            encoder->helper_private;
+        /* lvds has its own version of commit see psb_intel_lvds_commit */
+        encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
+}
+
+void gma_encoder_destroy(struct drm_encoder *encoder)
+{
+        struct psb_intel_encoder *intel_encoder = to_psb_intel_encoder(encoder);
+
+        drm_encoder_cleanup(encoder);
+        kfree(intel_encoder);
+}
+
+/* Currently there is only a 1:1 mapping of encoders and connectors */
+struct drm_encoder *gma_best_encoder(struct drm_connector *connector)
+{
+        struct psb_intel_encoder *psb_intel_encoder =
+                                        psb_intel_attached_encoder(connector);
+
+        return &psb_intel_encoder->base;
+}
+
+void gma_connector_attach_encoder(struct psb_intel_connector *connector,
+                                  struct psb_intel_encoder *encoder)
+{
+        connector->encoder = encoder;
+        drm_mode_connector_attach_encoder(&connector->base,
+                                          &encoder->base);
+}
+
 #define GMA_PLL_INVALID(s) { /* DRM_ERROR(s); */ return false; }
 
 bool gma_pll_is_valid(struct drm_crtc *crtc,
diff --git a/drivers/gpu/drm/gma500/gma_display.h b/drivers/gpu/drm/gma500/gma_display.h
index 0d3b6074ca99..1e7016529d75 100644
--- a/drivers/gpu/drm/gma500/gma_display.h
+++ b/drivers/gpu/drm/gma500/gma_display.h
@@ -81,6 +81,10 @@ extern void gma_crtc_commit(struct drm_crtc *crtc);
 extern void gma_crtc_disable(struct drm_crtc *crtc);
 extern void gma_crtc_destroy(struct drm_crtc *crtc);
 
+extern void gma_encoder_prepare(struct drm_encoder *encoder);
+extern void gma_encoder_commit(struct drm_encoder *encoder);
+extern void gma_encoder_destroy(struct drm_encoder *encoder);
+
 /* Common clock related functions */
 extern const struct gma_limit_t *gma_limit(struct drm_crtc *crtc, int refclk);
 extern void gma_clock(int refclk, struct gma_clock_t *clock);
diff --git a/drivers/gpu/drm/gma500/psb_intel_drv.h b/drivers/gpu/drm/gma500/psb_intel_drv.h
index c8cd9bee7a89..39f09e067beb 100644
--- a/drivers/gpu/drm/gma500/psb_intel_drv.h
+++ b/drivers/gpu/drm/gma500/psb_intel_drv.h
@@ -230,12 +230,22 @@ extern void psb_intel_encoder_prepare(struct drm_encoder *encoder);
 extern void psb_intel_encoder_commit(struct drm_encoder *encoder);
 extern void psb_intel_encoder_destroy(struct drm_encoder *encoder);
 
+extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
+extern void gma_connector_attach_encoder(struct psb_intel_connector *connector,
+                                         struct psb_intel_encoder *encoder);
+
 static inline struct psb_intel_encoder *psb_intel_attached_encoder(
                                                 struct drm_connector *connector)
 {
         return to_psb_intel_connector(connector)->encoder;
 }
 
+static inline struct psb_intel_encoder *gma_attached_encoder(
+                                                struct drm_connector *connector)
+{
+        return to_psb_intel_connector(connector)->encoder;
+}
+
 extern void psb_intel_connector_attach_encoder(
                                         struct psb_intel_connector *connector,
                                         struct psb_intel_encoder *encoder);