From: Sui Jingfeng <sui.jingfeng@linux.dev>
To: Maxime Ripard <mripard@kernel.org>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>,
Neil Armstrong <neil.armstrong@linaro.org>,
Robert Foss <rfoss@kernel.org>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Jonas Karlman <jonas@kwiboo.se>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Thomas Zimmermann <tzimmermann@suse.de>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Sui Jingfeng <sui.jingfeng@linux.dev>
Subject: [PATCH] drm/bridge: cdns-mhdp8546: Remove a redundant check on existence of bridge->encoder
Date: Sat, 11 May 2024 22:30:27 +0800 [thread overview]
Message-ID: <20240511143027.320180-1-sui.jingfeng@linux.dev> (raw)
In the cdns_mhdp_connector_init() function, the check on the existence
of bridge->encoder is not necessary, as it has already been done in the
drm_bridge_attach() function. And the check on the drm bridge core
happens before check in the implementation. Hence, it is guaranteed that
the .encoder member of the struct drm_bridge is not NULL when
adv7511_bridge_attach() function gets called.
Remove the redundant checking codes "if (!bridge->encoder) { ... }".
Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
---
drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
index e226acc5c15e..16b58a7dcc54 100644
--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
@@ -1697,11 +1697,6 @@ static int cdns_mhdp_connector_init(struct cdns_mhdp_device *mhdp)
struct drm_bridge *bridge = &mhdp->bridge;
int ret;
- if (!bridge->encoder) {
- dev_err(mhdp->dev, "Parent encoder object not found");
- return -ENODEV;
- }
-
conn->polled = DRM_CONNECTOR_POLL_HPD;
ret = drm_connector_init(bridge->dev, conn, &cdns_mhdp_conn_funcs,
--
2.43.0
next reply other threads:[~2024-05-11 14:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-11 14:30 Sui Jingfeng [this message]
2024-05-12 21:22 ` [PATCH] drm/bridge: cdns-mhdp8546: Remove a redundant check on existence of bridge->encoder Laurent Pinchart
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