drm/exynos: added possible_clones setup function.

basically, all crtcs are possible to clone each other.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_core.c b/drivers/gpu/drm/exynos/exynos_drm_core.c
index 661a035..d08a558 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_core.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_core.c
@@ -193,6 +193,9 @@ int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
                        return err;
                }
 
+               /* setup possible_clones. */
+               exynos_drm_encoder_setup(drm_dev);
+
                /*
                 * if any specific driver such as fimd or hdmi driver called
                 * exynos_drm_subdrv_register() later than drm_load(),

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 2ef12aa..76a111f 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -33,6 +33,7 @@
 
 #include "exynos_drm_drv.h"
 #include "exynos_drm_crtc.h"
+#include "exynos_drm_encoder.h"
 #include "exynos_drm_fbdev.h"
 #include "exynos_drm_fb.h"
 #include "exynos_drm_gem.h"
@@ -99,6 +100,9 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
        if (ret)
                goto err_vblank;
 
+       /* setup possible_clones. */
+       exynos_drm_encoder_setup(dev);
+
        /*
         * create and configure fb helper and also exynos specific
         * fbdev object.

diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
index 86b93dd..ef4754f 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -195,6 +195,40 @@ static struct drm_encoder_funcs exynos_encoder_funcs = {
        .destroy = exynos_drm_encoder_destroy,
 };
 
+static unsigned int exynos_drm_encoder_clones(struct drm_encoder *encoder)
+{
+       struct drm_encoder *clone;
+       struct drm_device *dev = encoder->dev;
+       struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+       struct exynos_drm_display_ops *display_ops =
+                               exynos_encoder->manager->display_ops;
+       unsigned int clone_mask = 0;
+       int cnt = 0;
+
+       list_for_each_entry(clone, &dev->mode_config.encoder_list, head) {
+               switch (display_ops->type) {
+               case EXYNOS_DISPLAY_TYPE_LCD:
+               case EXYNOS_DISPLAY_TYPE_HDMI:
+                       clone_mask |= (1 << (cnt++));
+                       break;
+               default:
+                       continue;
+               }
+       }
+
+       return clone_mask;
+}
+
+void exynos_drm_encoder_setup(struct drm_device *dev)
+{
+       struct drm_encoder *encoder;
+
+       DRM_DEBUG_KMS("%s\n", __FILE__);
+
+       list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+               encoder->possible_clones = exynos_drm_encoder_clones(encoder);
+}
+
 struct drm_encoder *
 exynos_drm_encoder_create(struct drm_device *dev,
                           struct exynos_drm_manager *manager,

diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.h b/drivers/gpu/drm/exynos/exynos_drm_encoder.h
index 97b087a..eb7d231 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.h
@@ -30,6 +30,7 @@
 
 struct exynos_drm_manager;
 
+void exynos_drm_encoder_setup(struct drm_device *dev);
 struct drm_encoder *exynos_drm_encoder_create(struct drm_device *dev,
                                               struct exynos_drm_manager *mgr,
                                               unsigned int possible_crtcs);