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 --- drivers/gpu/drm/exynos/exynos_drm_core.c | 3 ++ drivers/gpu/drm/exynos/exynos_drm_drv.c | 4 +++ drivers/gpu/drm/exynos/exynos_drm_encoder.c | 34 +++++++++++++++++++++++++++ drivers/gpu/drm/exynos/exynos_drm_encoder.h | 1 + 4 files changed, 42 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_core.c b/drivers/gpu/drm/exynos/exynos_drm_core.c index 661a035..d08a558 100644 --- 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 --- 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 --- 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 --- 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);