[PATCH v12 04/18] drm: exynos: dsi: Switch to devm_drm_of_dsi_get_bridge

Jagan Teki
2023-01-26T14:47:13Z

devm_drm_of_dsi_get_bridge is capable of looking up the downstream
DSI bridge and panel and trying to add a panel bridge if the panel
is found.

Replace explicit finding calls with devm_drm_of_dsi_get_bridge.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v12, v11:
- none
Changes for v10:
- new patch

drivers/gpu/drm/exynos/exynos_drm_dsi.c | 13 +------------
1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index df15501b1075..4a165764121d 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1470,18 +1470,9 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host,
struct device *dev = dsi->dev;
struct drm_encoder *encoder = &dsi->encoder;
struct drm_device *drm = encoder->dev;
- struct drm_panel *panel;
int ret;

- panel = of_drm_find_panel(device->dev.of_node);
- if (!IS_ERR(panel)) {
- dsi->out_bridge = devm_drm_panel_bridge_add(dev, panel);
- } else {
- dsi->out_bridge = of_drm_find_bridge(device->dev.of_node);
- if (!dsi->out_bridge)
- dsi->out_bridge = ERR_PTR(-EINVAL);
- }
-
+ dsi->out_bridge = devm_drm_of_dsi_get_bridge(dev, dev->of_node, 1, 0);
if (IS_ERR(dsi->out_bridge)) {
ret = PTR_ERR(dsi->out_bridge);
DRM_DEV_ERROR(dev, "failed to find the bridge: %d\n", ret);
@@ -1531,8 +1522,6 @@ static int exynos_dsi_host_detach(struct mipi_dsi_host *host,
struct exynos_dsi *dsi = host_to_dsi(host);
struct drm_device *drm = dsi->encoder.dev;

- dsi->out_bridge = NULL;
-
if (drm->mode_config.poll_enabled)
drm_kms_helper_hotplug_event(drm);

--
2.25.1