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drm: msm: update to use component match support

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Update MSM's DRM driver to use the component match support rather than
add_components.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2014-04-19 11:20:42 +01:00
parent b509cc8022
commit 8444828854
1 changed files with 36 additions and 49 deletions
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85
drivers/gpu/drm/msm/msm_drv.c
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@ -905,12 +905,41 @@ static int compare_of(struct device *dev, void *data)
{
return dev->of_node == data;
}
static int msm_drm_add_components(struct device *master, struct master *m)
#else
static int compare_dev(struct device *dev, void *data)
{
struct device_node *np = master->of_node;
return dev == data;
}
#endif
static int msm_drm_bind(struct device *dev)
{
return drm_platform_init(&msm_driver, to_platform_device(dev));
}
static void msm_drm_unbind(struct device *dev)
{
drm_put_dev(platform_get_drvdata(to_platform_device(dev)));
}
static const struct component_master_ops msm_drm_ops = {
.bind = msm_drm_bind,
.unbind = msm_drm_unbind,
};
/*
* Platform driver:
*/
static int msm_pdev_probe(struct platform_device *pdev)
{
struct component_match *match = NULL;
#ifdef CONFIG_OF
/* NOTE: the CONFIG_OF case duplicates the same code as exynos or imx
* (or probably any other).. so probably some room for some helpers
*/
struct device_node *np = pdev->dev.of_node;
unsigned i;
int ret;
for (i = 0; ; i++) {
struct device_node *node;
@ -919,22 +948,9 @@ static int msm_drm_add_components(struct device *master, struct master *m)
if (!node)
break;
ret = component_master_add_child(m, compare_of, node);
of_node_put(node);
if (ret)
return ret;
component_match_add(&pdev->dev, &match, compare_of, node);
}
return 0;
}
#else
static int compare_dev(struct device *dev, void *data)
{
return dev == data;
}
static int msm_drm_add_components(struct device *master, struct master *m)
{
/* For non-DT case, it kinda sucks. We don't actually have a way
* to know whether or not we are waiting for certain devices (or if
* they are simply not present). But for non-DT we only need to
@ -958,41 +974,12 @@ static int msm_drm_add_components(struct device *master, struct master *m)
return -EPROBE_DEFER;
}
ret = component_master_add_child(m, compare_dev, dev);
if (ret) {
DBG("could not add child: %d", ret);
return ret;
}
component_match_add(&pdev->dev, &match, compare_dev, dev);
}
return 0;
}
#endif
static int msm_drm_bind(struct device *dev)
{
return drm_platform_init(&msm_driver, to_platform_device(dev));
}
static void msm_drm_unbind(struct device *dev)
{
drm_put_dev(platform_get_drvdata(to_platform_device(dev)));
}
static const struct component_master_ops msm_drm_ops = {
.add_components = msm_drm_add_components,
.bind = msm_drm_bind,
.unbind = msm_drm_unbind,
};
/*
* Platform driver:
*/
static int msm_pdev_probe(struct platform_device *pdev)
{
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
return component_master_add(&pdev->dev, &msm_drm_ops);
return component_master_add_with_match(&pdev->dev, &msm_drm_ops, match);
}
static int msm_pdev_remove(struct platform_device *pdev)