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bh=JmZt4ZatQt1QqdraJhsr036GH0ECWNW4Inh1COYLPgI=; b=RVNBPnjDkSwsRvqY83r+lXRKhCv7yy558oV8mojizx2H++eGvdWHeNpkdtblC0Ewu0Wzu8 214SmRNyvvwW653I9ncqCsbeOAyXBRsL91M6+RneHw0IUJb0925ugo9ckbYN3PD9HyQWeW uUDiwYcMznNgayNDhfac3ACtyRE/0fMenyv/667dpff8X3PyF825zVYYxvv8OPLT3Hp4u5 AS4owRIEn2n9jRWVQ+Z7SrlHethK6P/F95PEmliJiro6GR1lCeCshUffreTmmUG63MEgY7 DBb5ZqiPLK+JNnBI9Fo6yb+KtZylobEGXb/kdBW2Pmful4ajySedu9uxviD9EQ== From: Luca Ceresoli Date: Wed, 09 Jul 2025 18:48:03 +0200 Subject: [PATCH 4/9] drm/omapdrm: use drm_bridge_chain_get_last_bridge() Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250709-drm-bridge-alloc-getput-drm_bridge_get_next_bridge-v1-4-48920b9cf369@bootlin.com> References: <20250709-drm-bridge-alloc-getput-drm_bridge_get_next_bridge-v1-0-48920b9cf369@bootlin.com> In-Reply-To: <20250709-drm-bridge-alloc-getput-drm_bridge_get_next_bridge-v1-0-48920b9cf369@bootlin.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Liu Ying , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Tomi Valkeinen , Philipp Zabel Cc: Hui Pu , Thomas Petazzoni , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Luca Ceresoli X-Mailer: b4 0.14.2 X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdefgdefkedtkecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfitefpfffkpdcuggftfghnshhusghstghrihgsvgenuceurghilhhouhhtmecufedtudenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephfffufggtgfgkfhfjgfvvefosehtjeertdertdejnecuhfhrohhmpefnuhgtrgcuvegvrhgvshholhhiuceolhhutggrrdgtvghrvghsohhlihessghoohhtlhhinhdrtghomheqnecuggftrfgrthhtvghrnhepieeiuedvffetgfeuudelheeutefggfejieettdetteekueeuueeukeevvedvueevnecukfhppeekjedruddvtddrvddukedrvddtjeenucevlhhushhtvghrufhiiigvpedvnecurfgrrhgrmhepihhnvghtpeekjedruddvtddrvddukedrvddtjedphhgvlhhopegludelvddrudeikedruddrudefngdpmhgrihhlfhhrohhmpehluhgtrgdrtggvrhgvshholhhisegsohhothhlihhnrdgtohhmpdhnsggprhgtphhtthhopedvhedprhgtphhtthhopehtiihimhhmvghrmhgrnhhnsehsuhhsvgdruggvpdhrtghpthhtohepihhmgieslhhishhtshdrlhhinhhugidruggvvhdprhgtphhtthhopefjuhhirdfruhesghgvhhgvrghlthhhtggrrhgvrdgtohhmpdhrtghpthhtohepthhomhhirdhvrghlkhgvihhnvghnsehiuggvrghsohhnsghorghrugdrtghomhdprhgtphhtthhopehvihgtthhorhdrlhhiuhesn higphdrtghomhdprhgtphhtthhopehshhgrfihnghhuoheskhgvrhhnvghlrdhorhhgpdhrtghpthhtohepthhhohhmrghsrdhpvghtrgiiiihonhhisegsohhothhlihhnrdgtohhmpdhrtghpthhtohepphdriigrsggvlhesphgvnhhguhhtrhhonhhigidruggv X-GND-Sasl: luca.ceresoli@bootlin.com Use drm_bridge_chain_get_last_bridge() instead of open coding a loop with two invocations of drm_bridge_get_next_bridge() per iteration. Besides being cleaner and more efficient, this change is necessary in preparation for drm_bridge_get_next_bridge() to get a reference to the returned bridge. Signed-off-by: Luca Ceresoli --- drivers/gpu/drm/omapdrm/omap_drv.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c index 054b71dba6a75b8c42198c4b102a093f43a675a2..3bbcec01428a6f290afdfa40ef6f79629539a584 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.c +++ b/drivers/gpu/drm/omapdrm/omap_drv.c @@ -378,12 +378,12 @@ static int omap_display_id(struct omap_dss_device *output) struct device_node *node = NULL; if (output->bridge) { - struct drm_bridge *bridge = output->bridge; - - while (drm_bridge_get_next_bridge(bridge)) - bridge = drm_bridge_get_next_bridge(bridge); + struct drm_bridge *bridge = + drm_bridge_chain_get_last_bridge(output->bridge->encoder); node = bridge->of_node; + + drm_bridge_put(bridge); } return node ? of_alias_get_id(node, "display") : -ENODEV; -- 2.50.0