Message ID | 20240929091107.838023-7-ryan@testtoast.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Sun, 29 Sep 2024 05:11:59 -0400 (EDT) From: Ryan Walklin <ryan@testtoast.com> To: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Thomas Zimmermann <tzimmermann@suse.de>, David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, Jernej Skrabec <jernej.skrabec@gmail.com>, Samuel Holland <samuel@sholland.org>, Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>, Conor Dooley <conor+dt@kernel.org>, Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org> Cc: Andre Przywara <andre.przywara@arm.com>, Chris Morgan <macroalpha82@gmail.com>, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, Ryan Walklin <ryan@testtoast.com> Subject: [PATCH v5 06/26] drm: sun4i: de3: add format enumeration function to engine Date: Sun, 29 Sep 2024 22:04:38 +1300 Message-ID: <20240929091107.838023-7-ryan@testtoast.com> X-Mailer: git-send-email 2.46.1 In-Reply-To: <20240929091107.838023-1-ryan@testtoast.com> References: <20240929091107.838023-1-ryan@testtoast.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240929_021206_080887_A03F0244 X-CRM114-Status: GOOD ( 12.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org |
Series |
drm: sun4i: add Display Engine 3.3 (DE33) support
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expand
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diff --git a/drivers/gpu/drm/sun4i/sunxi_engine.h b/drivers/gpu/drm/sun4i/sunxi_engine.h index ec0c4932f15cf..c48cbc1aceb80 100644 --- a/drivers/gpu/drm/sun4i/sunxi_engine.h +++ b/drivers/gpu/drm/sun4i/sunxi_engine.h @@ -123,6 +123,17 @@ struct sunxi_engine_ops { */ void (*mode_set)(struct sunxi_engine *engine, const struct drm_display_mode *mode); + + /** + * @get_supported_fmts + * + * This callback is used to enumerate all supported output + * formats by the engine. They are used for bridge format + * negotiation. + * + * This function is optional. + */ + u32 *(*get_supported_fmts)(struct sunxi_engine *engine, u32 *num); }; /** @@ -215,4 +226,22 @@ sunxi_engine_mode_set(struct sunxi_engine *engine, if (engine->ops && engine->ops->mode_set) engine->ops->mode_set(engine, mode); } + +/** + * sunxi_engine_get_supported_formats - Provide array of supported formats + * @engine: pointer to the engine + * @num: pointer to variable, which will hold number of formats + * + * This list can be used for format negotiation by bridge. + */ +static inline u32 * +sunxi_engine_get_supported_formats(struct sunxi_engine *engine, u32 *num) +{ + if (engine->ops && engine->ops->get_supported_fmts) + return engine->ops->get_supported_fmts(engine, num); + + *num = 0; + + return NULL; +} #endif /* _SUNXI_ENGINE_H_ */