drm/exynos: init vblank with real number of crtcs

Initialization of vblank with MAX_CRTC caused attempts
to disabling vblanks for non-existing crtcs in case
drm used fewer crtcs. The patch fixes it.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 443a206..510d7cb 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -94,10 +94,6 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
        /* init kms poll for handling hpd */
        drm_kms_helper_poll_init(dev);
 
-       ret = drm_vblank_init(dev, MAX_CRTC);
-       if (ret)
-               goto err_mode_config_cleanup;
-
        /* setup possible_clones. */
        exynos_drm_encoder_setup(dev);
 
@@ -106,12 +102,16 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
        /* Try to bind all sub drivers. */
        ret = component_bind_all(dev->dev, dev);
        if (ret)
-               goto err_cleanup_vblank;
+               goto err_mode_config_cleanup;
+
+       ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
+       if (ret)
+               goto err_unbind_all;
 
        /* Probe non kms sub drivers and virtual display driver. */
        ret = exynos_drm_device_subdrv_probe(dev);
        if (ret)
-               goto err_unbind_all;
+               goto err_cleanup_vblank;
 
        /* force connectors detection */
        drm_helper_hpd_irq_event(dev);
@@ -135,10 +135,10 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 
        return 0;
 
-err_unbind_all:
-       component_unbind_all(dev->dev, dev);
 err_cleanup_vblank:
        drm_vblank_cleanup(dev);
+err_unbind_all:
+       component_unbind_all(dev->dev, dev);
 err_mode_config_cleanup:
        drm_mode_config_cleanup(dev);
        drm_release_iommu_mapping(dev);
@@ -155,8 +155,8 @@ static int exynos_drm_unload(struct drm_device *dev)
        exynos_drm_fbdev_fini(dev);
        drm_kms_helper_poll_fini(dev);
 
-       component_unbind_all(dev->dev, dev);
        drm_vblank_cleanup(dev);
+       component_unbind_all(dev->dev, dev);
        drm_mode_config_cleanup(dev);
        drm_release_iommu_mapping(dev);