From patchwork Wed Sep 20 14:35:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 725761 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13FD2CE79DC for ; Wed, 20 Sep 2023 14:36:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236548AbjITOgL (ORCPT ); Wed, 20 Sep 2023 10:36:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53064 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235275AbjITOgF (ORCPT ); Wed, 20 Sep 2023 10:36:05 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3B4A8123; Wed, 20 Sep 2023 07:35:57 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 810F9C433C8; Wed, 20 Sep 2023 14:35:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695220556; bh=E6JGNAX7Dm1dZPTxMfTze5N4hdn9v4Ok+92Pn7dcfMQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=NjA8hzP37bZ9OgQ+qCMy7qQimoGyTkuKlFakxC328wTyCV6qFVUZsK3vxeORn6b+l meRMjgQKeXshySWCPZn4xHR5z7H6Q7Iw+DlbqDdYmtpC0+jH4GtSVvT4bKN8zemDgp WnUcajc3a5G6x/AWXDMZ67xN3YalAEcqpdBNYrBSgKE5WUfmSxIQsa7ezR3b9V3wNV 64DXx8tncZ/Oh4cIcgLJua8rKwJID2FrM0Npqedh4bU/4G+1woHAjts3fH2NLcXtKY ATWe7IpJaX9VjsCFvL9WlS+IHoXAsddh+QzNsoCXCMZ+PBQNymmTTs9Paj/jJtsiet nVgHTjDMmeSpg== From: Maxime Ripard Date: Wed, 20 Sep 2023 16:35:20 +0200 Subject: [PATCH RFC v2 05/37] drm/connector: hdmi: Add output BPC to the connector state MIME-Version: 1.0 Message-Id: <20230920-kms-hdmi-connector-state-v2-5-17932daddd7d@kernel.org> References: <20230920-kms-hdmi-connector-state-v2-0-17932daddd7d@kernel.org> In-Reply-To: <20230920-kms-hdmi-connector-state-v2-0-17932daddd7d@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Emma Anholt , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: Hans Verkuil , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=5181; i=mripard@kernel.org; h=from:subject:message-id; bh=E6JGNAX7Dm1dZPTxMfTze5N4hdn9v4Ok+92Pn7dcfMQ=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDKnczJY5l6PTdbwMrrUtEfiUGxlyZoY3R9vsZZ/Ov0yTm fB2Q+KOjlIWBjEuBlkxRZYYYfMlcadmve5k45sHM4eVCWQIAxenAEzkXA0jw8+ZU/RszD+31fke T/t+h2OCyf/NJhYiBfbnL0foMZzde5uRYdWW8Phr51wu9uknPxYJvia7SupbjlPd6TcpAW8SxDI Z+AA= X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org We'll add automatic selection of the output BPC in a following patch, but let's add it to the HDMI connector state already. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_atomic.c | 4 +++- drivers/gpu/drm/drm_atomic_state_helper.c | 6 +++++- drivers/gpu/drm/drm_connector.c | 13 ++++++++++++- include/drm/drm_connector.h | 13 ++++++++++++- 4 files changed, 32 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index b1b56dcaa76b..8dce0a2f2ac3 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1143,9 +1143,11 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, drm_printf(p, "\tcolorspace=%s\n", drm_get_colorspace_name(state->colorspace)); if (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || - connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) + connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) { drm_printf(p, "\tbroadcast_rgb=%s\n", drm_hdmi_connector_get_broadcast_rgb_name(state->hdmi.broadcast_rgb)); + drm_printf(p, "\toutput_bpc=%u\n", state->hdmi.output_bpc); + } if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) if (state->writeback_job && state->writeback_job->fb) diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index 0f7e5ba555b8..2c9b52ae1b56 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -569,6 +569,9 @@ EXPORT_SYMBOL(drm_atomic_helper_connector_tv_reset); void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, struct drm_connector_state *new_state) { + new_state->max_bpc = 8; + new_state->max_requested_bpc = 8; + new_state->hdmi.output_bpc = 8; new_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_AUTO; } EXPORT_SYMBOL(__drm_atomic_helper_connector_hdmi_reset); @@ -651,7 +654,8 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, struct drm_connector_state *new_state = drm_atomic_get_new_connector_state(state, connector); - if (old_state->hdmi.broadcast_rgb != new_state->hdmi.broadcast_rgb) { + if (old_state->hdmi.broadcast_rgb != new_state->hdmi.broadcast_rgb || + old_state->hdmi.output_bpc != new_state->hdmi.output_bpc) { struct drm_crtc *crtc = new_state->crtc; struct drm_crtc_state *crtc_state; diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index b45471d540ac..f55f5918411c 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -459,6 +459,7 @@ EXPORT_SYMBOL(drmm_connector_init); * @funcs: callbacks for this connector * @connector_type: user visible type of the connector * @ddc: optional pointer to the associated ddc adapter + * @max_bpc: Maximum bits per char the HDMI connector supports * * Initialises a preallocated HDMI connector. Connectors can be * subclassed as part of driver connector objects. @@ -475,7 +476,8 @@ int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, int connector_type, - struct i2c_adapter *ddc) + struct i2c_adapter *ddc, + unsigned int max_bpc) { int ret; @@ -487,6 +489,15 @@ int drmm_connector_hdmi_init(struct drm_device *dev, if (ret) return ret; + if (max_bpc) { + if (!(max_bpc == 8 || max_bpc == 10 || max_bpc == 12)) + return -EINVAL; + + drm_connector_attach_hdr_output_metadata_property(connector); + drm_connector_attach_max_bpc_property(connector, 8, max_bpc); + connector->max_bpc = max_bpc; + } + return 0; } EXPORT_SYMBOL(drmm_connector_hdmi_init); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index fdcf64ab91a9..d0bcb835c857 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1056,6 +1056,11 @@ struct drm_connector_state { * Broadcast RGB selection value. */ enum drm_hdmi_broadcast_rgb broadcast_rgb; + + /** + * @output_bpc: Bits per character to output. + */ + unsigned int output_bpc; } hdmi; }; @@ -1700,6 +1705,11 @@ struct drm_connector { */ struct drm_property_blob *path_blob_ptr; + /** + * @max_bpc: Maximum bits per character the connector supports. + */ + unsigned int max_bpc; + /** * @max_bpc_property: Default connector property for the max bpc to be * driven out of the connector. @@ -1939,7 +1949,8 @@ int drmm_connector_hdmi_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, int connector_type, - struct i2c_adapter *ddc); + struct i2c_adapter *ddc, + unsigned int max_bpc); void drm_connector_attach_edid_property(struct drm_connector *connector); int drm_connector_register(struct drm_connector *connector); void drm_connector_unregister(struct drm_connector *connector);