From nobody Fri Dec 19 03:10:13 2025 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 496C8C07E8A for ; Mon, 14 Aug 2023 13:57:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231753AbjHNN5C (ORCPT ); Mon, 14 Aug 2023 09:57:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55520 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231494AbjHNN4m (ORCPT ); Mon, 14 Aug 2023 09:56:42 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 51162E6D for ; Mon, 14 Aug 2023 06:56:41 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id E325260EB3 for ; Mon, 14 Aug 2023 13:56:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F0C79C433CA; Mon, 14 Aug 2023 13:56:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1692021400; bh=oWUDOi4NfdQFSp0O5CoIevtT3gTEWUAlM+FIqPYfeaU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=DqSrboWq+iUh8KA2DjsHy6RX2Tg2W7xKKlty5uSJEilpYePLA6Rk8+FGRU4ZDKROj galX+EsAcFXAE8KXpKlq6FOdSg+Jj+MuHPrYThAQDPBg8CI3z3SW7n3BCEVGsUzATj Hhz7yxHaqzhBJmxZ954lN+3BMthy4Mp+fT8sxJdSyPfwh5+La64ktyQEezuxbemCoa 7Ti4q7Fc80yQqZ4VjYHsvjex4q1f3QdU6p0mHmlsm7t2TKMWVUrv3ObQ16y7Mm+/a9 KAfjqnYisC5CSU3sGVTWJh1vd+b3u+S3oWcZAszA+okhWKccXQPteey2sl/y79RCxy g2NN+KFFS35Yg== From: Maxime Ripard Date: Mon, 14 Aug 2023 15:56:17 +0200 Subject: [PATCH RFC 05/13] drm/connector: hdmi: Add output BPC to the connector state MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230814-kms-hdmi-connector-state-v1-5-048054df3654@kernel.org> References: <20230814-kms-hdmi-connector-state-v1-0-048054df3654@kernel.org> In-Reply-To: <20230814-kms-hdmi-connector-state-v1-0-048054df3654@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Emma Anholt Cc: Hans Verkuil , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Maxime Ripard X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=4839; i=mripard@kernel.org; h=from:subject:message-id; bh=oWUDOi4NfdQFSp0O5CoIevtT3gTEWUAlM+FIqPYfeaU=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDCm3jNq+zLuQt/ZF2JTgDS9+Sm8rUHP1EDUJaYyXXinOH qCzIGViRykLgxgXg6yYIkuMsPmSuFOzXney8c2DmcPKBDKEgYtTACYyPYqR4ZZl1Ovi92v+nsiz v3xjRQmD7fSfPbfniHxcF3v1X+K3GyKMDNd9tzHWxQoeuKu6ON/54KJ6J8Hq/TvFw/mSOi3sdzj JMQIA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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_hdmi_connector.c | 21 +++++++++++++++++++-- include/drm/drm_connector.h | 13 ++++++++++++- 2 files changed, 31 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_hdmi_connector.c b/drivers/gpu/drm/drm_hdm= i_connector.c index 1fe3f3ebf719..6d5535e613c6 100644 --- a/drivers/gpu/drm/drm_hdmi_connector.c +++ b/drivers/gpu/drm/drm_hdmi_connector.c @@ -26,6 +26,9 @@ void __drm_atomic_helper_hdmi_connector_reset(struct drm_= hdmi_connector *hdmi_co =20 __drm_atomic_helper_connector_reset(connector, &new_hdmi_state->base); =20 + new_hdmi_state->base.max_bpc =3D 8; + new_hdmi_state->base.max_requested_bpc =3D 8; + new_hdmi_state->output_bpc =3D 8; new_hdmi_state->broadcast_rgb =3D DRM_HDMI_BROADCAST_RGB_AUTO; } EXPORT_SYMBOL(__drm_atomic_helper_hdmi_connector_reset); @@ -78,6 +81,7 @@ __drm_atomic_helper_hdmi_connector_duplicate_state(struct= drm_hdmi_connector *hd struct drm_hdmi_connector_state *old_hdmi_state =3D connector_state_to_hdmi_connector_state(old_state); =20 + new_hdmi_state->output_bpc =3D old_hdmi_state->output_bpc; new_hdmi_state->broadcast_rgb =3D old_hdmi_state->broadcast_rgb; __drm_atomic_helper_connector_duplicate_state(connector, &new_hdmi_state-= >base); } @@ -254,7 +258,8 @@ int drm_atomic_helper_hdmi_connector_atomic_check(struc= t drm_connector *connecto struct drm_hdmi_connector_state *new_hdmi_state =3D connector_state_to_hdmi_connector_state(new_state); =20 - if (old_hdmi_state->broadcast_rgb !=3D new_hdmi_state->broadcast_rgb) { + if (old_hdmi_state->broadcast_rgb !=3D new_hdmi_state->broadcast_rgb || + old_hdmi_state->output_bpc !=3D new_hdmi_state->output_bpc) { struct drm_crtc *crtc =3D new_state->crtc; struct drm_crtc_state *crtc_state; =20 @@ -339,6 +344,7 @@ void drm_atomic_helper_hdmi_connector_print_state(struc= t drm_printer *p, =20 drm_printf(p, "\tbroadcast_rgb=3D%s\n", drm_hdmi_connector_get_broadcast_rgb_name(hdmi_state->broadcast_rgb)); + drm_printf(p, "\toutput_bpc=3D%u\n", hdmi_state->output_bpc); } EXPORT_SYMBOL(drm_atomic_helper_hdmi_connector_print_state); =20 @@ -348,6 +354,7 @@ EXPORT_SYMBOL(drm_atomic_helper_hdmi_connector_print_st= ate); * @hdmi_connector: A pointer to the HDMI connector to init * @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. @@ -364,7 +371,8 @@ int drmm_hdmi_connector_init(struct drm_device *dev, struct drm_hdmi_connector *hdmi_connector, const struct drm_connector_funcs *funcs, int connector_type, - struct i2c_adapter *ddc) + struct i2c_adapter *ddc, + unsigned int max_bpc) { struct drm_connector *connector =3D &hdmi_connector->base; struct drm_property *prop; @@ -393,6 +401,15 @@ int drmm_hdmi_connector_init(struct drm_device *dev, drm_object_attach_property(&connector->base, prop, DRM_HDMI_BROADCAST_RGB_AUTO); =20 + if (max_bpc) { + if (!(max_bpc =3D=3D 8 || max_bpc =3D=3D 10 || max_bpc =3D=3D 12)) + return -EINVAL; + + drm_connector_attach_hdr_output_metadata_property(connector); + drm_connector_attach_max_bpc_property(connector, 8, max_bpc); + hdmi_connector->max_bpc =3D max_bpc; + } + return 0; } EXPORT_SYMBOL(drmm_hdmi_connector_init); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index dff95e6e2b48..353aa8e5a117 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -2075,6 +2075,11 @@ struct drm_hdmi_connector_state { */ struct drm_connector_state base; =20 + /** + * @output_bpc: Bits per character to output. + */ + unsigned int output_bpc; + /** * @broadcast_rgb: Connector property to pass the Broadcast RGB * selection value. @@ -2121,6 +2126,11 @@ struct drm_hdmi_connector { */ struct drm_connector base; =20 + /** + * @max_bpc: Maximum bits per character the connector supports. + */ + unsigned int max_bpc; + /** * @broadcast_rgb_property: Connector property to set the * Broadcast RGB selection to output with. @@ -2135,7 +2145,8 @@ int drmm_hdmi_connector_init(struct drm_device *dev, struct drm_hdmi_connector *hdmi_connector, const struct drm_connector_funcs *funcs, int connector_type, - struct i2c_adapter *ddc); + struct i2c_adapter *ddc, + unsigned int max_bpc); =20 /** * struct drm_tile_group - Tile group metadata --=20 2.41.0