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authorSui Jingfeng <sui.jingfeng@linux.dev>2024-05-13 23:31:08 +0800
committerRobert Foss <rfoss@kernel.org>2024-05-13 18:31:12 +0200
commitec74951a75070ab969943e438ead202beeec5134 (patch)
treeca0208127b733dab639c5a25c8b34f0639544b5a /drivers/gpu/drm/bridge
parent91942a37ebba1b810fa2e0ac20926f0c45f38023 (diff)
drm/bridge: imx: Remove redundant checks on existence of bridge->encoder
The checks on the existence of bridge->encoder in the implementation of drm_bridge_funcs::attach() is not necessary, as it has already been checked in the drm_bridge_attach() function call by previous bridge or KMS driver. The drm_bridge_attach() will quit with a negative error code returned if it fails for some reasons, hence, it is guaranteed that the .encoder member of the drm_bridge instance is not NULL when various i.MX specific bridge attach functions are called. Remove the redundant checking codes "if (!bridge->encoder) { ... }". Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev> Signed-off-by: Robert Foss <rfoss@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240513153109.46786-12-sui.jingfeng@linux.dev
Diffstat (limited to 'drivers/gpu/drm/bridge')
-rw-r--r--drivers/gpu/drm/bridge/imx/imx-ldb-helper.c5
-rw-r--r--drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c5
-rw-r--r--drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c5
-rw-r--r--drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c5
4 files changed, 0 insertions, 20 deletions
diff --git a/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c b/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c
index 6967325cd8ee..9b5bebbe357d 100644
--- a/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c
+++ b/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c
@@ -116,11 +116,6 @@ int ldb_bridge_attach_helper(struct drm_bridge *bridge,
return -EINVAL;
}
- if (!bridge->encoder) {
- DRM_DEV_ERROR(ldb->dev, "missing encoder\n");
- return -ENODEV;
- }
-
return drm_bridge_attach(bridge->encoder,
ldb_ch->next_bridge, bridge,
DRM_BRIDGE_ATTACH_NO_CONNECTOR);
diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c
index d0868a6ac6c9..e6dbbdc87ce2 100644
--- a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c
+++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c
@@ -119,11 +119,6 @@ static int imx8qxp_pc_bridge_attach(struct drm_bridge *bridge,
return -EINVAL;
}
- if (!bridge->encoder) {
- DRM_DEV_ERROR(pc->dev, "missing encoder\n");
- return -ENODEV;
- }
-
return drm_bridge_attach(bridge->encoder,
ch->next_bridge, bridge,
DRM_BRIDGE_ATTACH_NO_CONNECTOR);
diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c
index ed8b7a4e0e11..1d11cc1df43c 100644
--- a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c
+++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c
@@ -138,11 +138,6 @@ static int imx8qxp_pixel_link_bridge_attach(struct drm_bridge *bridge,
return -EINVAL;
}
- if (!bridge->encoder) {
- DRM_DEV_ERROR(pl->dev, "missing encoder\n");
- return -ENODEV;
- }
-
return drm_bridge_attach(bridge->encoder,
pl->next_bridge, bridge,
DRM_BRIDGE_ATTACH_NO_CONNECTOR);
diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c
index 4a886cb808ca..fb7cf4369bb8 100644
--- a/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c
+++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c
@@ -58,11 +58,6 @@ static int imx8qxp_pxl2dpi_bridge_attach(struct drm_bridge *bridge,
return -EINVAL;
}
- if (!bridge->encoder) {
- DRM_DEV_ERROR(p2d->dev, "missing encoder\n");
- return -ENODEV;
- }
-
return drm_bridge_attach(bridge->encoder,
p2d->next_bridge, bridge,
DRM_BRIDGE_ATTACH_NO_CONNECTOR);