Signed-off-by: Eric Anholt <eric at 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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