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Sat, 22 Jun 2024 22:40:19 -0700 (PDT) From: Dmitry Baryshkov Date: Sun, 23 Jun 2024 08:40:12 +0300 Subject: [PATCH v2 1/2] drm/bridge-connector: reset the HDMI connector state MIME-Version: 1.0 Message-Id: <20240623-drm-bridge-connector-fix-hdmi-reset-v2-1-8590d44912ce@linaro.org> References: <20240623-drm-bridge-connector-fix-hdmi-reset-v2-0-8590d44912ce@linaro.org> In-Reply-To: <20240623-drm-bridge-connector-fix-hdmi-reset-v2-0-8590d44912ce@linaro.org> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Dave Stevenson Cc: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=6433; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=3yTmp3Sv/j769E4v8X1gSQqZKrDdcZgB/xdp5LC/6x4=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBmd7VBENNTf284nWcQLh19OCMqf5IH1l5DhmmVZ yDrtAtWhEiJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZne1QQAKCRCLPIo+Aiko 1U8hB/9SdkyyQg2swP/hpd6sqcRQmN44V1uzQeeeLir0Z86HYX6cpVuiZZKhFO2c2rLP45ryy/i A5Xl2EAGhcZ3l1uEjXG7Jflm09qnZQwT0zDkgtgjIAaVd+8IeqKyPhtKCY52+Qta66/wCZitg5y Gtz+GGfdKbUtakJIgpe77KynIp8mIS0/lL28/oNnnCidrAF9/PWCxnYcv4TPkDXJftSF6c9pder hzJPbmXZfku9q60/SPFe4SZ9AIucQuYC7UiFXcvvCEDszVItrKJfcgUpvH0xcHuEdhHxu28LQRd op8kCK69QUiDJfHyliwKoF9Q9TY/SexvsU6snm1xFS5RBrg2 X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On HDMI connectors which use drm_bridge_connector and DRM_BRIDGE_OP_HDMI IGT chokes on the max_bpc property in several kms_properties tests due to the the drm_bridge_connector failing to reset HDMI-related properties. Call __drm_atomic_helper_connector_hdmi_reset() if there is a the drm_bridge_connector has bridge_hdmi. Note, the __drm_atomic_helper_connector_hdmi_reset() is moved to drm_atomic_state_helper.c because drm_bridge_connector.c can not depend on DRM_DISPLAY_HDMI_STATE_HELPER. At the same time it is impossible to call this function from HDMI bridges, there is is no function that corresponds to the drm_connector_funcs::reset(). Fixes: 6b4468b0c6ba ("drm/bridge-connector: implement glue code for HDMI connector") Signed-off-by: Dmitry Baryshkov Reviewed-by: Abhinav Kumar --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 21 --------------------- drivers/gpu/drm/drm_atomic_state_helper.c | 21 +++++++++++++++++++++ drivers/gpu/drm/drm_bridge_connector.c | 13 ++++++++++++- include/drm/display/drm_hdmi_state_helper.h | 3 --- include/drm/drm_atomic_state_helper.h | 2 ++ 5 files changed, 35 insertions(+), 25 deletions(-) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index 2dab3ad8ce64..67f39857b0b4 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -8,27 +8,6 @@ #include #include -/** - * __drm_atomic_helper_connector_hdmi_reset() - Initializes all HDMI @drm_connector_state resources - * @connector: DRM connector - * @new_conn_state: connector state to reset - * - * Initializes all HDMI resources from a @drm_connector_state without - * actually allocating it. This is useful for HDMI drivers, in - * combination with __drm_atomic_helper_connector_reset() or - * drm_atomic_helper_connector_reset(). - */ -void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, - struct drm_connector_state *new_conn_state) -{ - unsigned int max_bpc = connector->max_bpc; - - new_conn_state->max_bpc = max_bpc; - new_conn_state->max_requested_bpc = max_bpc; - new_conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_AUTO; -} -EXPORT_SYMBOL(__drm_atomic_helper_connector_hdmi_reset); - static const struct drm_display_mode * connector_state_get_mode(const struct drm_connector_state *conn_state) { diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index 519228eb1095..1518ada81b45 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -478,6 +478,27 @@ void drm_atomic_helper_connector_reset(struct drm_connector *connector) } EXPORT_SYMBOL(drm_atomic_helper_connector_reset); +/** + * __drm_atomic_helper_connector_hdmi_reset() - Initializes all HDMI @drm_connector_state resources + * @connector: DRM connector + * @new_conn_state: connector state to reset + * + * Initializes all HDMI resources from a @drm_connector_state without + * actually allocating it. This is useful for HDMI drivers, in + * combination with __drm_atomic_helper_connector_reset() or + * drm_atomic_helper_connector_reset(). + */ +void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, + struct drm_connector_state *new_conn_state) +{ + unsigned int max_bpc = connector->max_bpc; + + new_conn_state->max_bpc = max_bpc; + new_conn_state->max_requested_bpc = max_bpc; + new_conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_AUTO; +} +EXPORT_SYMBOL(__drm_atomic_helper_connector_hdmi_reset); + /** * drm_atomic_helper_connector_tv_margins_reset - Resets TV connector properties * @connector: DRM connector diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c index 0869b663f17e..7ebb35438459 100644 --- a/drivers/gpu/drm/drm_bridge_connector.c +++ b/drivers/gpu/drm/drm_bridge_connector.c @@ -216,8 +216,19 @@ static void drm_bridge_connector_debugfs_init(struct drm_connector *connector, } } +static void drm_bridge_connector_reset(struct drm_connector *connector) +{ + struct drm_bridge_connector *bridge_connector = + to_drm_bridge_connector(connector); + + drm_atomic_helper_connector_reset(connector); + if (bridge_connector->bridge_hdmi) + __drm_atomic_helper_connector_hdmi_reset(connector, + connector->state); +} + static const struct drm_connector_funcs drm_bridge_connector_funcs = { - .reset = drm_atomic_helper_connector_reset, + .reset = drm_bridge_connector_reset, .detect = drm_bridge_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, diff --git a/include/drm/display/drm_hdmi_state_helper.h b/include/drm/display/drm_hdmi_state_helper.h index 285f366cf716..454319b40f17 100644 --- a/include/drm/display/drm_hdmi_state_helper.h +++ b/include/drm/display/drm_hdmi_state_helper.h @@ -8,9 +8,6 @@ struct drm_connector; struct drm_connector_state; struct hdmi_audio_infoframe; -void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, - struct drm_connector_state *new_conn_state); - int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, struct drm_atomic_state *state); diff --git a/include/drm/drm_atomic_state_helper.h b/include/drm/drm_atomic_state_helper.h index b9740edb2658..adf300e6b4eb 100644 --- a/include/drm/drm_atomic_state_helper.h +++ b/include/drm/drm_atomic_state_helper.h @@ -71,6 +71,8 @@ void __drm_atomic_helper_connector_state_reset(struct drm_connector_state *conn_ 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_hdmi_reset(struct drm_connector *connector, + struct drm_connector_state *new_conn_state); 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); From patchwork Sun Jun 23 05:40:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 13708499 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0FE76C27C4F for ; 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a=openpgp-sha256; l=1164; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=Ogj1qgSBFy5LiaMGrph8HSRVcootU6FeEO747BTFj9E=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBmd7VC9k3OnQtTnxxxl8WBd8EP07ZwSvEfxe83x 9mlVUBtvXWJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZne1QgAKCRCLPIo+Aiko 1ZulB/9VGOjTN5uHSczSZCl5LY1tDsEZ8ElrPoAzIIMyxJpYuHzDj1DEP2L3SeTXmv3wCOuwzTc 6bNUkw9AdXzeLJ/IGR/Xk+V/XA9lDA5rBPuJkdSCdWaHur06DeHT8KOxFv7G0NLTl6T5MU7yptb wQGBL+gk8cC92DjyVWJdKinJm5xjogNa/2cR8nHAa2PjDuQVFDRfgLs9rWbq4srehFPnwVIxIUa oxspq1UPaQ+j1MCtZHSzIdBfaVt8ZCP+d7c8ygH59JccJ/3jw1oACd1hGJMXkpneuj7uqb5DblK 9wKM9mnJISq4t243XjfYVTg4SbCN4fWKN4q+6IxUytONLpQj X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" With the introduction of the HDMI Connector framework the driver might end up creating the max_bpc property with min = max = 8. IGT insists that such properties carry the 'immutable' flag. Automatically set the flag if the driver asks for the max_bpc property with min == max. Fixes: aadb3e16b8f3 ("drm/connector: hdmi: Add output BPC to the connector state") Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/drm_connector.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index ab6ab7ff7ea8..33847fd63628 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -2610,7 +2610,12 @@ int drm_connector_attach_max_bpc_property(struct drm_connector *connector, prop = connector->max_bpc_property; if (!prop) { - prop = drm_property_create_range(dev, 0, "max bpc", min, max); + u32 flags = 0; + + if (min == max) + flags |= DRM_MODE_PROP_IMMUTABLE; + + prop = drm_property_create_range(dev, flags, "max bpc", min, max); if (!prop) return -ENOMEM;