Merge branch 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm

[cascardo/linux.git] / drivers / staging / imx-drm / imx-drm-core.c

diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index 847f430..3d3a824 100644 (file)
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -41,7 +41,6 @@ struct imx_drm_device {
        struct list_head                        encoder_list;
        struct list_head                        connector_list;
        struct mutex                            mutex;
-       int                                     references;
        int                                     pipes;
        struct drm_fbdev_cma                    *fbhelper;
 };
@@ -69,6 +68,11 @@ struct imx_drm_connector {
        struct module                           *owner;
 };
 
+int imx_drm_crtc_id(struct imx_drm_crtc *crtc)
+{
+       return crtc->pipe;
+}
+
 static void imx_drm_driver_lastclose(struct drm_device *drm)
 {
        struct imx_drm_device *imxdrm = drm->dev_private;
@@ -111,18 +115,12 @@ int imx_drm_crtc_panel_format_pins(struct drm_crtc *crtc, u32 encoder_type,
        struct imx_drm_crtc *imx_crtc;
        struct imx_drm_crtc_helper_funcs *helper;
 
-       mutex_lock(&imxdrm->mutex);
-
        list_for_each_entry(imx_crtc, &imxdrm->crtc_list, list)
                if (imx_crtc->crtc == crtc)
                        goto found;
 
-       mutex_unlock(&imxdrm->mutex);
-
        return -EINVAL;
 found:
-       mutex_unlock(&imxdrm->mutex);
-
        helper = &imx_crtc->imx_drm_helper_funcs;
        if (helper->set_interface_pix_fmt)
                return helper->set_interface_pix_fmt(crtc,
@@ -192,6 +190,18 @@ static void imx_drm_disable_vblank(struct drm_device *drm, int crtc)
        imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc);
 }
 
+static void imx_drm_driver_preclose(struct drm_device *drm,
+               struct drm_file *file)
+{
+       int i;
+
+       if (!file->is_master)
+               return;
+
+       for (i = 0; i < 4; i++)
+               imx_drm_disable_vblank(drm , i);
+}
+
 static const struct file_operations imx_drm_driver_fops = {
        .owner = THIS_MODULE,
        .open = drm_open,
@@ -241,8 +251,6 @@ struct drm_device *imx_drm_device_get(void)
                }
        }
 
-       imxdrm->references++;
-
        return imxdrm->drm;
 
 unwind_crtc:
@@ -280,8 +288,6 @@ void imx_drm_device_put(void)
        list_for_each_entry(enc, &imxdrm->encoder_list, list)
                module_put(enc->owner);
 
-       imxdrm->references--;
-
        mutex_unlock(&imxdrm->mutex);
 }
 EXPORT_SYMBOL_GPL(imx_drm_device_put);
@@ -485,7 +491,7 @@ int imx_drm_add_crtc(struct drm_crtc *crtc,
 
        mutex_lock(&imxdrm->mutex);
 
-       if (imxdrm->references) {
+       if (imxdrm->drm->open_count) {
                ret = -EBUSY;
                goto err_busy;
        }
@@ -564,7 +570,7 @@ int imx_drm_add_encoder(struct drm_encoder *encoder,
 
        mutex_lock(&imxdrm->mutex);
 
-       if (imxdrm->references) {
+       if (imxdrm->drm->open_count) {
                ret = -EBUSY;
                goto err_busy;
        }
@@ -652,20 +658,14 @@ int imx_drm_encoder_get_mux_id(struct imx_drm_encoder *imx_drm_encoder,
        struct imx_drm_crtc *imx_crtc;
        int i = 0;
 
-       mutex_lock(&imxdrm->mutex);
-
        list_for_each_entry(imx_crtc, &imxdrm->crtc_list, list) {
                if (imx_crtc->crtc == crtc)
                        goto found;
                i++;
        }
 
-       mutex_unlock(&imxdrm->mutex);
-
        return -EINVAL;
 found:
-       mutex_unlock(&imxdrm->mutex);
-
        return i;
 }
 EXPORT_SYMBOL_GPL(imx_drm_encoder_get_mux_id);
@@ -709,7 +709,7 @@ int imx_drm_add_connector(struct drm_connector *connector,
 
        mutex_lock(&imxdrm->mutex);
 
-       if (imxdrm->references) {
+       if (imxdrm->drm->open_count) {
                ret = -EBUSY;
                goto err_busy;
        }
@@ -779,16 +779,26 @@ static const struct drm_ioctl_desc imx_drm_ioctls[] = {
 };
 
 static struct drm_driver imx_drm_driver = {
-       .driver_features        = DRIVER_MODESET | DRIVER_GEM,
+       .driver_features        = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
        .load                   = imx_drm_driver_load,
        .unload                 = imx_drm_driver_unload,
        .lastclose              = imx_drm_driver_lastclose,
+       .preclose               = imx_drm_driver_preclose,
        .gem_free_object        = drm_gem_cma_free_object,
        .gem_vm_ops             = &drm_gem_cma_vm_ops,
        .dumb_create            = drm_gem_cma_dumb_create,
        .dumb_map_offset        = drm_gem_cma_dumb_map_offset,
        .dumb_destroy           = drm_gem_dumb_destroy,
 
+       .prime_handle_to_fd     = drm_gem_prime_handle_to_fd,
+       .prime_fd_to_handle     = drm_gem_prime_fd_to_handle,
+       .gem_prime_import       = drm_gem_prime_import,
+       .gem_prime_export       = drm_gem_prime_export,
+       .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
+       .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
+       .gem_prime_vmap         = drm_gem_cma_prime_vmap,
+       .gem_prime_vunmap       = drm_gem_cma_prime_vunmap,
+       .gem_prime_mmap         = drm_gem_cma_prime_mmap,
        .get_vblank_counter     = drm_vblank_count,
        .enable_vblank          = imx_drm_enable_vblank,
        .disable_vblank         = imx_drm_disable_vblank,
@@ -848,8 +858,8 @@ static int __init imx_drm_init(void)
        INIT_LIST_HEAD(&imx_drm_device->encoder_list);
 
        imx_drm_pdev = platform_device_register_simple("imx-drm", -1, NULL, 0);
-       if (!imx_drm_pdev) {
-               ret = -EINVAL;
+       if (IS_ERR(imx_drm_pdev)) {
+               ret = PTR_ERR(imx_drm_pdev);
                goto err_pdev;
        }