From nobody Wed Dec 17 21:39:45 2025 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 580841D5CD1 for ; Mon, 16 Dec 2024 22:54:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734389687; cv=none; b=UNi7FOXFMg8O9Wy5jhVWoZBbn/Lhp49FOfmjPjecLecrOUY3BFMnAtldShkjIlNLXA8fnL/dxEOD4uFDCWtc+2gr0gJi3sPKK+6l7/dtvpdoUGakXBObVtaauZDKO2qCjf5BAUM1wkedh9LmatRTwgQwLUt9RGi4kPZz0HsIeM4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734389687; c=relaxed/simple; bh=8KCcfXAcnrbBrAylr/pecwYM1mZvQEg1BZbBmlSGq7U=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=kC5HEWBfyTGcf4U4sM0+oq1XnofOGA8RVQjC7QKwktP+UdkKtmxhHNMDffE+/e3vOrU9pZOsycNMxvn/RtE/5rKoMg039TUVaAv+hul6on6tiP4V3dsMSm/1vx2MOu0hxXZhNNqqbvNfuOwCPoW8TWjAgcLyiJ3hzA58JsMp4/8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=W8Kd9QKZ; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="W8Kd9QKZ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1734389683; bh=8KCcfXAcnrbBrAylr/pecwYM1mZvQEg1BZbBmlSGq7U=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=W8Kd9QKZiVWBcdl6rqQn3oscAs6jehydIya4lzzUuEI3EJD8ojlV7cvC8JBvQea2Y rfeWy/0H9sxpLQDW0RWj2ImgSeEsFTgTp8fxe36rcb+LQaxno5InK1j/uTGB3xa1m3 a9epkpomoIPijzdW2zgeNVC1gOvuiseElfAMSWjmyGc/ZXIPwrwfK0U+8M5YANhCVn m+rsBqtfCxyZ49/aJ1ys5fqAFE/emcVFnJbxJ7cnqLH2OHYr59stRV5x7oyUkgZggX 8F3Ym0oyWZRm9ryIms4v8u7QjKJZB76ryYweaTxVVK6wNFE3eU6W0eNFtMGL09xlcj 7JkVzhTi0M5qg== Received: from localhost (unknown [188.27.48.199]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: cristicc) by bali.collaboradmins.com (Postfix) with ESMTPSA id 6BFD117E3832; Mon, 16 Dec 2024 23:54:43 +0100 (CET) From: Cristian Ciocaltea Date: Tue, 17 Dec 2024 00:54:07 +0200 Subject: [PATCH v3 1/2] drm/bridge-connector: Prioritize supported_formats over ycbcr_420_allowed Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241217-bridge-conn-fmt-prio-v3-1-3ecb3c8fc06f@collabora.com> References: <20241217-bridge-conn-fmt-prio-v3-0-3ecb3c8fc06f@collabora.com> In-Reply-To: <20241217-bridge-conn-fmt-prio-v3-0-3ecb3c8fc06f@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Dmitry Baryshkov Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.2 Bridges having the DRM_BRIDGE_OP_HDMI flag set in drm_bridge->ops are supposed to rely on drm_bridge->supported_formats bitmask to advertise the supported colorspaces, including HDMI_COLORSPACE_YUV420. Therefore, the newly introduced drm_bridge->ycbcr_420_allowed flag becomes redundant in this particular context. Moreover, when drm_bridge_connector gets initialised, only drm_bridge->ycbcr_420_allowed is considered in the process of adjusting the equivalent property of the base drm_connector, which effectively discards the formats advertised by the HDMI bridge. Handle the inconsistency by overwriting drm_bridge->ycbcr_420_allowed for HDMI bridges according to drm_bridge->supported_formats, before adding them to the global bridge list. Additionally, ensure the YUV420 related bit is removed from the bitmask passed to drmm_connector_hdmi_init() when the final ycbcr_420_allowed flag for the connector ends up not being set (i.e. the case of having at least one non-HDMI bridge in the pipeline that didn't enable it). Fixes: 3ced1c687512 ("drm/display: bridge_connector: handle ycbcr_420_allow= ed") Signed-off-by: Cristian Ciocaltea --- drivers/gpu/drm/display/drm_bridge_connector.c | 8 ++++++-- drivers/gpu/drm/drm_bridge.c | 4 ++++ 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/display/drm_bridge_connector.c b/drivers/gpu/d= rm/display/drm_bridge_connector.c index 320c297008aaa8b6ef5b1f4c71928849b202e8ac..3a5a4f92c979accaa2a8f79ca0f= 15396dd579429 100644 --- a/drivers/gpu/drm/display/drm_bridge_connector.c +++ b/drivers/gpu/drm/display/drm_bridge_connector.c @@ -459,7 +459,10 @@ struct drm_connector *drm_bridge_connector_init(struct= drm_device *drm, if (connector_type =3D=3D DRM_MODE_CONNECTOR_Unknown) return ERR_PTR(-EINVAL); =20 - if (bridge_connector->bridge_hdmi) + if (bridge_connector->bridge_hdmi) { + if (!connector->ycbcr_420_allowed) + supported_formats &=3D ~BIT(HDMI_COLORSPACE_YUV420); + ret =3D drmm_connector_hdmi_init(drm, connector, bridge_connector->bridge_hdmi->vendor, bridge_connector->bridge_hdmi->product, @@ -468,10 +471,11 @@ struct drm_connector *drm_bridge_connector_init(struc= t drm_device *drm, connector_type, ddc, supported_formats, max_bpc); - else + } else { ret =3D drmm_connector_init(drm, connector, &drm_bridge_connector_funcs, connector_type, ddc); + } if (ret) return ERR_PTR(ret); =20 diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index c6af46dd02bfa9e15b59e4c460debdd7fd84be44..241a384ebce39b4a3db58c208af= 27960904fc662 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -207,6 +207,10 @@ void drm_bridge_add(struct drm_bridge *bridge) { mutex_init(&bridge->hpd_mutex); =20 + if (bridge->ops & DRM_BRIDGE_OP_HDMI) + bridge->ycbcr_420_allowed =3D !!(bridge->supported_formats & + BIT(HDMI_COLORSPACE_YUV420)); + mutex_lock(&bridge_lock); list_add_tail(&bridge->list, &bridge_list); mutex_unlock(&bridge_lock); --=20 2.47.0 From nobody Wed Dec 17 21:39:45 2025 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 602511D61B7 for ; Mon, 16 Dec 2024 22:54:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734389688; cv=none; b=Ukiddf4T6rJCWm/wshImZpygreJEKr+JEC22tA9q0nodGwSmvOnfI/G8b53cBDchAL2DvvXzqfwyN9fdL7fi2MhM+n7Sm5lDopajE/vVqomoeLO5okWZk1aqj+kRUASdH/wRWlV5RxEikjHyeopcUO5A8ihDsKWT1iV0ida2l88= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734389688; c=relaxed/simple; bh=3Yv9HXZbZ6qFS04G/TTVkzxJkRaupXuzYL93ruy4RrE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ttSXheHkkExBCzmTlk5YY5pu4pJJxf0PLeOn7J0NTNTS3iTT/Ov9rV5k2FKxDCIDCP0CNABB1yH4rOyqE39HDxrRR2JrkiuJjnG4hZs3zfRk23GBdWLAGzuq5uCZPGMphao5s8Cr6R0V7xeBlBVS2bVaux1sbeIp3LBPLAc4ltA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=Cm/rg9ZA; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="Cm/rg9ZA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1734389684; bh=3Yv9HXZbZ6qFS04G/TTVkzxJkRaupXuzYL93ruy4RrE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Cm/rg9ZAzJp+Ba1aPf8zhm6N6tEvrGa7bWdhx82EL9brhfSMaNLqMzq2Gf5m75ZKb KtIDHWGlU0DSStagLTq9FqzCcb91NnXLb6TRVBUXr25MEsvkFa4D4iLRcg5rtaZmRA fn2TQEpDbbptzge0WpqiFDX5njooUt7ZplzdoaYvw+GpvPGVfHTwsa3GOrGqCMNiLK DtpA/ZEe/eplP1iJ0BOn90d3q6AORm+YGfUfL+ojwyO8uzezYlyCmYFqF5Oqzv0aKH /T8iqlWbamMhK9y3YoJlXkdxe81UzalQt1QH7MDw4zh1bC5WDMd9YGAk+jQLJcwVsV dFQxiP23D/sGA== Received: from localhost (unknown [188.27.48.199]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: cristicc) by bali.collaboradmins.com (Postfix) with ESMTPSA id 41D1717E3834; Mon, 16 Dec 2024 23:54:44 +0100 (CET) From: Cristian Ciocaltea Date: Tue, 17 Dec 2024 00:54:08 +0200 Subject: [PATCH v3 2/2] drm/connector: hdmi: Validate supported_formats matches ycbcr_420_allowed Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241217-bridge-conn-fmt-prio-v3-2-3ecb3c8fc06f@collabora.com> References: <20241217-bridge-conn-fmt-prio-v3-0-3ecb3c8fc06f@collabora.com> In-Reply-To: <20241217-bridge-conn-fmt-prio-v3-0-3ecb3c8fc06f@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Dmitry Baryshkov Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.2 Ensure HDMI connector initialization fails when the presence of HDMI_COLORSPACE_YUV420 in the given supported_formats bitmask doesn't match the value of drm_connector->ycbcr_420_allowed. Suggested-by: Dmitry Baryshkov Signed-off-by: Cristian Ciocaltea Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/drm_connector.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connecto= r.c index fc35f47e2849ed6786d6223ac9c69e1c359fc648..ca7f43c8d6f1b31ef9d3a1ee05f= 4df930ecffac4 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -507,6 +507,9 @@ int drmm_connector_hdmi_init(struct drm_device *dev, if (!supported_formats || !(supported_formats & BIT(HDMI_COLORSPACE_RGB))) return -EINVAL; =20 + if (connector->ycbcr_420_allowed !=3D !!(supported_formats & BIT(HDMI_COL= ORSPACE_YUV420))) + return -EINVAL; + if (!(max_bpc =3D=3D 8 || max_bpc =3D=3D 10 || max_bpc =3D=3D 12)) return -EINVAL; =20 --=20 2.47.0