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Thu, 13 Oct 2022 09:19:39 -0400 (EDT) From: Maxime Ripard Date: Thu, 13 Oct 2022 15:19:01 +0200 Subject: [PATCH v5 17/22] drm/atomic-helper: Add an analog TV atomic_check implementation MIME-Version: 1.0 Message-Id: <20220728-rpi-analog-tv-properties-v5-17-d841cc64fe4b@cerno.tech> References: <20220728-rpi-analog-tv-properties-v5-0-d841cc64fe4b@cerno.tech> In-Reply-To: <20220728-rpi-analog-tv-properties-v5-0-d841cc64fe4b@cerno.tech> To: Karol Herbst , Jani Nikula , Tvrtko Ursulin , Daniel Vetter , Maarten Lankhorst , David Airlie , Joonas Lahtinen , Lyude Paul , Maxime Ripard , Emma Anholt , Chen-Yu Tsai , Samuel Holland , Ben Skeggs , Thomas Zimmermann , Rodrigo Vivi , Jernej Skrabec Cc: =?unknown-8bit?q?Dom_Cobley_=3Cdom=40raspberrypi=2Ecom=3E=2C_Maxime_Ripa?= =?unknown-8bit?q?rd_=3Cmaxime=40cerno=2Etech=3E=2C_linux-sunxi=40lists=2Eli?= =?unknown-8bit?q?nux=2Edev=2C?= =?unknown-8bit?q?_Dave_Stevenson_=3Cdave=2Estevenson=40raspberrypi=2Ecom=3E?= =?unknown-8bit?q?=2C_Noralf_Tr=C3=B8nnes_=3Cnoralf=40tronnes=2Eorg=3E=2C_in?= =?unknown-8bit?q?tel-gfx=40lists=2Efreedesktop=2Eorg=2C?= =?unknown-8bit?q?_linux-kernel=40vger=2Ekernel=2Eorg=2C_nouveau=40lists=2Efr?= =?unknown-8bit?q?eedesktop=2Eorg=2C_Geert_Uytterhoeven_=3Cgeert=40linux-m68?= =?unknown-8bit?q?k=2Eorg=3E=2C?= =?unknown-8bit?q?_linux-arm-kernel=40lists=2Einfradead=2Eorg=2C_Mateusz_Kwia?= =?unknown-8bit?q?tkowski_=3Ckfyatek+publicgit=40gmail=2Ecom=3E=2C?= =?unknown-8bit?q?_dri-devel=40lists=2Efreedesktop=2Eorg=2C_Hans_de_Goede_=3C?= =?unknown-8bit?q?hdegoede=40redhat=2Ecom=3E=2C_Phil_Elwell_=3Cphil=40raspbe?= =?unknown-8bit?q?rrypi=2Ecom=3E?= X-Mailer: b4 0.11.0-dev-7da52 X-Developer-Signature: v=1; a=openpgp-sha256; l=3959; i=maxime@cerno.tech; h=from:subject:message-id; bh=sGOWtwxKEMl09v1mpDrUNJBmLU6YkteMKa52HWyOegk=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDMkeAu4xP8XDzyqsu9z8JVxucd3lo3uLeJx3LjaTXLZM8dTT JSyKHaUsDGJcDLJiiiwxwuZL4k7Net3JxjcPZg4rE8gQBi5OAZhIlSbDT8bZghHbF8Uutizg7Vy5nO O6JytPf+EJVvFpP3P2Tl5ybC8jw9RNtr9SxU5HhXK6fdIJO97QfuvQb8YHvLWXbmTZ/tppxQkA X-Developer-Key: i=maxime@cerno.tech; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221013_061940_911195_D15BBCCB X-CRM114-Status: GOOD ( 11.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The analog TV connector drivers share some atomic_check logic, and the new TV standard property have created some boilerplate that can be be shared across drivers too. Let's create an atomic_check helper for those use cases. Reviewed-by: Noralf Trønnes Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_atomic_state_helper.c | 49 +++++++++++++++++++++++++++++++ include/drm/drm_atomic_state_helper.h | 3 ++ 2 files changed, 52 insertions(+) diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index 0373c3dc824b..e88c57a4f7be 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -556,6 +556,55 @@ void drm_atomic_helper_connector_tv_reset(struct drm_connector *connector) } EXPORT_SYMBOL(drm_atomic_helper_connector_tv_reset); +/** + * @drm_atomic_helper_connector_tv_check: Validate an analog TV connector state + * @connector: DRM Connector + * @state: the DRM State object + * + * Checks the state object to see if the requested state is valid for an + * analog TV connector. + * + * Returns: + * Zero for success, a negative error code on error. + */ +int drm_atomic_helper_connector_tv_check(struct drm_connector *connector, + struct drm_atomic_state *state) +{ + struct drm_connector_state *old_conn_state = + drm_atomic_get_old_connector_state(state, connector); + struct drm_connector_state *new_conn_state = + drm_atomic_get_new_connector_state(state, connector); + struct drm_crtc_state *crtc_state; + struct drm_crtc *crtc; + + crtc = new_conn_state->crtc; + if (!crtc) + return 0; + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + if (!crtc_state) + return -EINVAL; + + if (old_conn_state->tv.mode != new_conn_state->tv.mode) + crtc_state->mode_changed = true; + + if ((old_conn_state->tv.margins.left != new_conn_state->tv.margins.left) || + (old_conn_state->tv.margins.right != new_conn_state->tv.margins.right) || + (old_conn_state->tv.margins.top != new_conn_state->tv.margins.top) || + (old_conn_state->tv.margins.bottom != new_conn_state->tv.margins.bottom) || + (old_conn_state->tv.mode != new_conn_state->tv.mode) || + (old_conn_state->tv.brightness != new_conn_state->tv.brightness) || + (old_conn_state->tv.contrast != new_conn_state->tv.contrast) || + (old_conn_state->tv.flicker_reduction != new_conn_state->tv.flicker_reduction) || + (old_conn_state->tv.overscan != new_conn_state->tv.overscan) || + (old_conn_state->tv.saturation != new_conn_state->tv.saturation) || + (old_conn_state->tv.hue != new_conn_state->tv.hue)) + crtc_state->connectors_changed = true; + + return 0; +} +EXPORT_SYMBOL(drm_atomic_helper_connector_tv_check); + /** * __drm_atomic_helper_connector_duplicate_state - copy atomic connector state * @connector: connector object diff --git a/include/drm/drm_atomic_state_helper.h b/include/drm/drm_atomic_state_helper.h index c8fbce795ee7..b9740edb2658 100644 --- a/include/drm/drm_atomic_state_helper.h +++ b/include/drm/drm_atomic_state_helper.h @@ -26,6 +26,7 @@ #include +struct drm_atomic_state; struct drm_bridge; struct drm_bridge_state; struct drm_crtc; @@ -71,6 +72,8 @@ void __drm_atomic_helper_connector_reset(struct drm_connector *connector, struct drm_connector_state *conn_state); void drm_atomic_helper_connector_reset(struct drm_connector *connector); void drm_atomic_helper_connector_tv_reset(struct drm_connector *connector); +int drm_atomic_helper_connector_tv_check(struct drm_connector *connector, + struct drm_atomic_state *state); void drm_atomic_helper_connector_tv_margins_reset(struct drm_connector *connector); void __drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector,