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bh=U/2wX00WAoUxU/CboHSklDrYBEFuvVE2Nu58abNNKUU=; b=GBJyfvRBnK3I5H1JUEykygQSRAOi+dzlPpCvBwbu3OgCNjyHqVh9MoPnBmlj0A0Rxmn672 /lLktv9+F3lhNO62WvAQmjemanHGv9OtGvnPfSR8EStUa4iJZyJsdqS+sW89ynXdsjZaox UDG+jDivYIwj8W+xcnSsC88pis9yDOlzSdVXXEPAXHcVAe/VXtcAGVB6Sf7A+hS2fUIgjY b7eogYCCSMjmXyVEGlAjcND/Hh+VlUxY1bCg60IH49uKaB1QdVKa/Ld71psxTdzDNFOx00 Pz5JMxbsvS7VSWU/Wajbajl5EkdcVlAKFzJpGkQ0wEZF4g7PLWkRZMHV8g0Xnw== From: Luca Ceresoli Date: Fri, 08 Aug 2025 16:49:15 +0200 Subject: [PATCH v2 8/9] drm/bridge: add drm_for_each_bridge_in_chain_from() Precedence: bulk X-Mailing-List: llvm@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: <20250808-drm-bridge-alloc-getput-for_each_bridge-v2-8-edb6ee81edf1@bootlin.com> References: <20250808-drm-bridge-alloc-getput-for_each_bridge-v2-0-edb6ee81edf1@bootlin.com> In-Reply-To: <20250808-drm-bridge-alloc-getput-for_each_bridge-v2-0-edb6ee81edf1@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 , Miguel Ojeda , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Tomi Valkeinen Cc: Dmitry Baryshkov , Chaoyi Chen , Hui Pu , Thomas Petazzoni , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, Luca Ceresoli X-Mailer: b4 0.14.2 X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdefgdduvdegtdelucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuifetpfffkfdpucggtfgfnhhsuhgsshgtrhhisggvnecuuegrihhlohhuthemuceftddunecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhfffugggtgffkfhgjvfevofesthejredtredtjeenucfhrhhomhepnfhutggrucevvghrvghsohhlihcuoehluhgtrgdrtggvrhgvshholhhisegsohhothhlihhnrdgtohhmqeenucggtffrrghtthgvrhhnpeeiieeuvdfftefgueduleehueetgffgjeeitedtteetkeeuueeuueekveevvdeuveenucfkphepjeekrddvuddvrddvjedrudduheenucevlhhushhtvghrufhiiigvpeeinecurfgrrhgrmhepihhnvghtpeejkedrvdduvddrvdejrdduudehpdhhvghloheplgdujedvrdduiedrtddrudgnpdhmrghilhhfrhhomheplhhutggrrdgtvghrvghsohhlihessghoohhtlhhinhdrtghomhdpnhgspghrtghpthhtohepvdehpdhrtghpthhtohepnhhitghkrdguvghsrghulhhnihgvrhhsodhlkhhmlhesghhmrghilhdrtghomhdprhgtphhtthhopehmohhrsghosehgohhoghhlvgdrtghomhdprhgtphhtthhopehsihhmohhnrgesfhhffihllhdrtghhpdhrtghpthhtohepnfgruhhrvghnthdrphhinhgthhgrrhhtsehiuggvrghsohhnsghorghrugdrtghomhdprhgtphhtthhopehtohhmihdrvhgrlhhkvghin hgvnhesihguvggrshhonhgsohgrrhgurdgtohhmpdhrtghpthhtohepjhhonhgrsheskhifihgsohhordhsvgdprhgtphhtthhopehrfhhoshhssehkvghrnhgvlhdrohhrghdprhgtphhtthhopehojhgvuggrsehkvghrnhgvlhdrohhrgh X-GND-Sasl: luca.ceresoli@bootlin.com Add variant of drm_for_each_bridge_in_chain_scoped() that iterates on the encoder bridge from a given bridge until the end of the chain. Signed-off-by: Luca Ceresoli --- include/drm/drm_bridge.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h index 6adf9221c2d462ec8e0e4e281c97b39081b3da24..6a79edcb4a8476a8eefa6ff00771b0f919de0f6b 100644 --- a/include/drm/drm_bridge.h +++ b/include/drm/drm_bridge.h @@ -1396,6 +1396,25 @@ drm_bridge_get_next_bridge_and_put(struct drm_bridge *bridge) bridge; \ bridge = drm_bridge_get_next_bridge_and_put(bridge)) +/** + * drm_for_each_bridge_in_chain_from - iterate over all bridges starting + * from the given bridge + * @first_bridge: the bridge to start from + * @bridge: a bridge pointer updated to point to the current bridge at each + * iteration + * + * Iterate over all bridges in the encoder chain starting from + * @first_bridge, included. + * + * Automatically gets/puts the bridge reference while iterating, and puts + * the reference even if returning or breaking in the middle of the loop. + */ +#define drm_for_each_bridge_in_chain_from(first_bridge, bridge) \ + for (struct drm_bridge *bridge __free(drm_bridge_put) = \ + drm_bridge_get(first_bridge); \ + bridge; \ + bridge = drm_bridge_get_next_bridge_and_put(bridge)) + enum drm_mode_status drm_bridge_chain_mode_valid(struct drm_bridge *bridge, const struct drm_display_info *info, -- 2.50.1