[PATCH v2 05/13] drm/mediatek: dpi use new API for finding bridge

Bibby Hsieh
2018-09-05T08:32:21Z

From: chunhui dai <chunhui.dai@mediatek.com>

Using new API for finding bridge.

Signed-off-by: chunhui dai <chunhui.dai@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_dpi.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 3758cfeb586b..ed2c153c70a2 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -14,6 +14,7 @@
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
+#include <drm/drm_of.h>
#include <linux/kernel.h>
#include <linux/component.h>
#include <linux/platform_device.h>
@@ -708,7 +709,6 @@ static int mtk_dpi_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct mtk_dpi *dpi;
struct resource *mem;
- struct device_node *bridge_node;
int comp_id;
const struct of_device_id *match;
int ret;
@@ -758,16 +758,13 @@ static int mtk_dpi_probe(struct platform_device *pdev)
return -EINVAL;
}

- bridge_node = of_graph_get_remote_node(dev->of_node, 0, 0);
- if (!bridge_node)
- return -ENODEV;
-
- dev_info(dev, "Found bridge node: %pOF\n", bridge_node);
-
- dpi->bridge = of_drm_find_bridge(bridge_node);
- of_node_put(bridge_node);
- if (!dpi->bridge)
+ ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0,
+ NULL, &dpi->bridge);
+ if (ret) {
+ dev_err(dev, "Failed to find panel or bridge: %d\n", ret);
return -EPROBE_DEFER;
+ }
+ dev_info(dev, "Found bridge node: %pOF\n", dpi->bridge);

comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DPI);
if (comp_id < 0) {
--
2.12.5.2.gbdf23ab