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drm/exynos: update to use component match support

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Update Exynos's DRM driver to use component match support rater than
add_components.

Changelog v2:
- release devices and drivers if failed.
- change compare_of to compare_dev.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Tested-by: Andrzej Hajda <a.hajda@samsung.com>
This commit is contained in:
Inki Dae 2014-09-11 17:04:03 +09:00 committed by Inki Dae
parent 18383cb92f
commit 53c5558d95
1 changed files with 23 additions and 23 deletions
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46
drivers/gpu/drm/exynos/exynos_drm_drv.c
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@ -486,21 +486,20 @@ void exynos_drm_component_del(struct device *dev,
mutex_unlock(&drm_component_lock);
}
static int compare_of(struct device *dev, void *data)
static int compare_dev(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.
@ -515,16 +514,10 @@ 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_dev,
cdev->crtc_dev);
goto out_lock;
}
@ -534,11 +527,8 @@ 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_dev, cdev->crtc_dev);
component_match_add(dev, &match, compare_dev, cdev->conn_dev);
out_lock:
mutex_lock(&drm_component_lock);
@ -546,7 +536,7 @@ 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)
@ -560,13 +550,13 @@ 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);
@ -633,13 +623,23 @@ 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_resources;
}
return 0;
ret = component_master_add_with_match(&pdev->dev, &exynos_drm_ops,
match);
if (ret < 0)
goto err_unregister_resources;
return ret;
err_unregister_resources:
#ifdef CONFIG_DRM_EXYNOS_IPP
exynos_platform_device_ipp_unregister();
err_unregister_ipp_drv:
platform_driver_unregister(&ipp_driver);
err_unregister_gsc_drv: