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Subject[PATCH 2/2] drm/exynos: Use the core platform_driver component matching helper.
Date
Signed-off-by: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/exynos/exynos_drm_drv.c | 37 +++++++--------------------------
1 file changed, 7 insertions(+), 30 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 831d2e4..74826ec 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -566,32 +566,6 @@ static struct platform_driver *const exynos_drm_drv_with_simple_dev[] = {
};
#define PDEV_COUNT ARRAY_SIZE(exynos_drm_drv_with_simple_dev)

-static int compare_dev(struct device *dev, void *data)
-{
- return dev == (struct device *)data;
-}
-
-static struct component_match *exynos_drm_match_add(struct device *dev)
-{
- struct component_match *match = NULL;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(exynos_drm_kms_drivers); ++i) {
- struct device_driver *drv = &exynos_drm_kms_drivers[i]->driver;
- struct device *p = NULL, *d;
-
- while ((d = bus_find_device(&platform_bus_type, p, drv,
- (void *)platform_bus_type.match))) {
- put_device(p);
- component_match_add(dev, &match, compare_dev, d);
- p = d;
- }
- put_device(p);
- }
-
- return match ?: ERR_PTR(-ENODEV);
-}
-
static int exynos_drm_bind(struct device *dev)
{
return drm_platform_init(&exynos_drm_driver, to_platform_device(dev));
@@ -609,14 +583,17 @@ static const struct component_master_ops exynos_drm_ops = {

static int exynos_drm_platform_probe(struct platform_device *pdev)
{
- struct component_match *match;
+ struct component_match *match = NULL;

pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls);

- match = exynos_drm_match_add(&pdev->dev);
- if (IS_ERR(match))
- return PTR_ERR(match);
+ component_match_add_platform_drivers(&pdev->dev, &match,
+ exynos_drm_kms_drivers,
+ ARRAY_SIZE(exynos_drm_kms_drivers));
+
+ if (!match)
+ return -ENODEV;

return component_master_add_with_match(&pdev->dev, &exynos_drm_ops,
match);
--
2.1.4


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