Update Exynos's DRM driver to use component match support rater than
add_components.
Signed-off-by: Inki Dae <inki.dae@xxxxxxxxxxx>
---
drivers/gpu/drm/exynos/exynos_drm_drv.c | 40 ++++++++++++++-----------------
1 file changed, 18 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index feee991..dae62c2 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -503,16 +503,15 @@ static int compare_of(struct device *dev, void *data)
return dev == (struct device *)data;
}
-static int exynos_drm_add_components(struct device *dev, struct master *m)
+static struct component_match *exynos_drm_match_add(struct device *dev)
{
+ struct component_match *match = NULL;
struct component_dev *cdev;
unsigned int attach_cnt = 0;
mutex_lock(&drm_component_lock);
list_for_each_entry(cdev, &drm_component_list, list) {
- int ret;
-
/*
* Add components to master only in case that crtc and
* encoder/connector device objects exist.
@@ -527,16 +526,10 @@ static int exynos_drm_add_components(struct device *dev, struct master *m)
/*
* fimd and dpi modules have same device object so add
* only crtc device object in this case.
- *
- * TODO. if dpi module follows driver-model driver then
- * below codes can be removed.
*/
if (cdev->crtc_dev == cdev->conn_dev) {
- ret = component_master_add_child(m, compare_of,
- cdev->crtc_dev);
- if (ret < 0)
- return ret;
-
+ component_match_add(dev, &match, compare_of,
+ cdev->crtc_dev);
goto out_lock;
}
@@ -546,11 +539,8 @@ static int exynos_drm_add_components(struct device *dev, struct master *m)
* connector/encoder need pipe number of crtc when they
* are created.
*/
- ret = component_master_add_child(m, compare_of, cdev->crtc_dev);
- ret |= component_master_add_child(m, compare_of,
- cdev->conn_dev);
- if (ret < 0)
- return ret;
+ component_match_add(dev, &match, compare_of, cdev->crtc_dev);
+ component_match_add(dev, &match, compare_of, cdev->conn_dev);
out_lock:
mutex_lock(&drm_component_lock);
@@ -558,7 +548,7 @@ out_lock:
mutex_unlock(&drm_component_lock);
- return attach_cnt ? 0 : -ENODEV;
+ return attach_cnt ? match : ERR_PTR(-EPROBE_DEFER);
}
static int exynos_drm_bind(struct device *dev)
@@ -572,13 +562,13 @@ static void exynos_drm_unbind(struct device *dev)
}
static const struct component_master_ops exynos_drm_ops = {
- .add_components = exynos_drm_add_components,
.bind = exynos_drm_bind,
.unbind = exynos_drm_unbind,
};
static int exynos_drm_platform_probe(struct platform_device *pdev)
{
+ struct component_match *match;
int ret;
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
@@ -645,13 +635,19 @@ static int exynos_drm_platform_probe(struct platform_device *pdev)
goto err_unregister_ipp_drv;
#endif
- ret = component_master_add(&pdev->dev, &exynos_drm_ops);
- if (ret < 0)
- DRM_DEBUG_KMS("re-tried by last sub driver probed later.\n");
+ match = exynos_drm_match_add(&pdev->dev);
+ if (IS_ERR(match)) {
+ ret = PTR_ERR(match);
+ goto err_unregister_ipp_dev;
+ }
- return 0;
+ return component_master_add_with_match(&pdev->dev, &exynos_drm_ops,
+ match);
+
+err_unregister_ipp_dev:
#ifdef CONFIG_DRM_EXYNOS_IPP
+ exynos_platform_device_ipp_unregister();
err_unregister_ipp_drv:
platform_driver_unregister(&ipp_driver);
err_unregister_gsc_drv:
--
1.7.9.5
--
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