drm: export drm_find_cea_extension to drivers

Nouveau needs access to this structure to build an ELD block for use
by the HDA audio codec.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 9c595e3b9c203fbdd746d154d3de8cbc1ddb921e..adc9358c9bec4a2b1f0d86a7a7ebb32655c36184 100644 (file)
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1297,7 +1297,7 @@ add_detailed_modes(struct drm_connector *connector, struct edid *edid,
 /**
  * Search EDID for CEA extension block.
  */
-static u8 *drm_find_cea_extension(struct edid *edid)
+u8 *drm_find_cea_extension(struct edid *edid)
 {
        u8 *edid_ext = NULL;
        int i;
@@ -1318,6 +1318,7 @@ static u8 *drm_find_cea_extension(struct edid *edid)
 
        return edid_ext;
 }
+EXPORT_SYMBOL(drm_find_cea_extension);
 
 /**
  * drm_detect_hdmi_monitor - detect whether monitor is hdmi.

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 60edf9be31e57083c56d95484a0a2f3149e858db..aaec09713bee35168836193e38d2215ba63d7ddf 100644 (file)
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -778,6 +778,7 @@ extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
                                    void *data, struct drm_file *file_priv);
 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
                                    void *data, struct drm_file *file_priv);
+extern u8 *drm_find_cea_extension(struct edid *edid);
 extern bool drm_detect_hdmi_monitor(struct edid *edid);
 extern bool drm_detect_monitor_audio(struct edid *edid);
 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,