From nobody Thu Apr 2 20:28:28 2026 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 0DE4D427A14; Thu, 26 Mar 2026 17:31:40 +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=1774546307; cv=none; b=of2mimjTuwJ6zcTcALCch135lzB7MQDBMnaSwZseFyGpG7Ohhbc1bSzsLbuWdN12UhJjQGHY6wii/vTS7iqvZJtryHKoBgab/80M7qsZabu6bcT/Tlgsg6rXXViKXYYX+xillwlCZLswa9y0FkeZFvET4ynwXC3S+xYteikfdME= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774546307; c=relaxed/simple; bh=ib7f4PTuwY8kPJVoSf2e6nZJwrE7r5uosxSm8TrvvSk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=RKJKOKzprptEe1P/vIlD8MiLthoUXFRwm74jeFZ3xsSAPXbbhsv/wRKxyMJOlffFVaMfe8NRFZS2jnSp4+EY8xTUJVXst+Mi+VeKwBGdE5QPZ0eGxLaQfzPbwnG78fPA87KOTZ2OjBsN993uBSalkMi1vUb0A/SE6Wi6XV4aL48= 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=e9NHhoOC; 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="e9NHhoOC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1774546298; bh=ib7f4PTuwY8kPJVoSf2e6nZJwrE7r5uosxSm8TrvvSk=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=e9NHhoOC/tS4QF6dvsQmLl/fSCjHJ7Ar/sftRfUqtINjfevSvGHNvyOkhufYEUJPx 15l9oJJnMO57BtvoF49ywI4Q9WVfGey8nxPKvSx1USG7qqcwF1eZsCt0caMUP1tYIN yOsESEDcNlt32DxHu0ouyrO/gUMYZd/v9gzznhCzf5qk5FDbGdvAb3TGbyAtkcf9FT YPZOEiTn4ZP5b/ko8nwmDG2N1AKVwl61S01O3qs18cdZkx/6rzIphWR12OFUwcGg9Z yiBZAxnLR8OiuYXb7rM1rI4Tyb3vg6F3uWceiRKvDR+Z7dgnGNxVuGoXyHCsavrO/B TK2dgbaXtfeEQ== Received: from jupiter.universe (dyndsl-091-248-208-149.ewe-ip-backbone.de [91.248.208.149]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: sre) by bali.collaboradmins.com (Postfix) with ESMTPSA id 9B20817E6190; Thu, 26 Mar 2026 18:31:38 +0100 (CET) Received: by jupiter.universe (Postfix, from userid 1000) id 4057948002B; Thu, 26 Mar 2026 18:31:38 +0100 (CET) From: Sebastian Reichel Date: Thu, 26 Mar 2026 18:31:26 +0100 Subject: [PATCH 02/10] drm/bridge: synopsys: dw-dp: Support MEDIA_BUS_FMT_FIXED 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: <20260326-synopsys-dw-dp-improvements-v1-2-501849162290@collabora.com> References: <20260326-synopsys-dw-dp-improvements-v1-0-501849162290@collabora.com> In-Reply-To: <20260326-synopsys-dw-dp-improvements-v1-0-501849162290@collabora.com> To: Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Damon Ding , Dmitry Baryshkov , Alexey Charkov , dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, kernel@collabora.com, Sebastian Reichel X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1544; i=sebastian.reichel@collabora.com; h=from:subject:message-id; bh=ib7f4PTuwY8kPJVoSf2e6nZJwrE7r5uosxSm8TrvvSk=; b=owJ4nAFtApL9kA0DAAoB2O7X88g7+poByyZiAGnFbXmnC95nPls+Yyqj1s1uG/t8PoHbkbItM bGyvgrYUxUvbIkCMwQAAQoAHRYhBO9mDQdGP4tyanlUE9ju1/PIO/qaBQJpxW15AAoJENju1/PI O/qaRRkP/3sVxjoSl1PgF87qI641Ov3TtoVcKAbmcIJqgaXsblfVJwnpBmlL1Mgx9Dz4tO0KuDX lQhaFyKh4KSBnlGtoRK19Tv9/4PRi1XjU7LVwp+GARCJTJeyf8fNmFpZaqyp98NRX9NFNIZpQ6G P0QG2//my/aVFJBYymneWVSOt3h1Q9xX8btrbvFRtR34LGceSD5EkKk7lX5w1phjAnorkGTV08N PXzbqDe+sMKiscKDzVfG8IgoOD1m+bw05XBm2LbbHgyp8VEWAuwDnDz1EHcMV2OI+Ak745UBzzP NCxZ1xCu62N9D3JkQ49MmT+Z+GG1JYbc/ihnlfS3vYBOef0MVGblknVFti/r+icjl48/h3lC+Kx btHavU8mKc1HAUVIbFmG91rmmyw2gK9AnRaGJosbeGc3Y9sZMQUbiRVFKn1srsYclHBXoQHlK8/ 2fyuNN1Sn7IQws3bj7QLVW1+Ia5U95O2wrB8DtpArUEM5fB1D7+//FGL33XuRvCECCVF5mK/Wck /QU7KshHx/QzBvGj/upYW1RusnHu8apSh2tthsoEOybCQ86yR3Z2Sss35FI6yfp18Zxjsecmb4u T7r/1u+qQY5LiHtbZ/qajIPhwAxEhrhMWYZjEWsxNB3J40IEo8GaYhn97zQyjjXDRxne32fGiT/ 12nDsKJrEgnQuNV3/nPk15Q== X-Developer-Key: i=sebastian.reichel@collabora.com; a=openpgp; fpr=EF660D07463F8B726A795413D8EED7F3C83BFA9A Add support for MEDIA_BUS_FMT_FIXED, which is e.g. requested for USB-C DP chains as the last bridge in the chain (aux-hpd-bridge) does not implement atomic_get_output_bus_fmts(), which results in the generic drm_atomic_bridge_chain_select_bus_fmts() code using MEDIA_BUS_FMT_FIXED instead. Signed-off-by: Sebastian Reichel --- drivers/gpu/drm/bridge/synopsys/dw-dp.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/synopsys/dw-dp.c b/drivers/gpu/drm/brid= ge/synopsys/dw-dp.c index 8f2739fa189e..222862d962d9 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-dp.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-dp.c @@ -1528,6 +1528,7 @@ static int dw_dp_bridge_atomic_check(struct drm_bridg= e *bridge, struct drm_connector_state *conn_state) { struct drm_display_mode *adjusted_mode =3D &crtc_state->adjusted_mode; + unsigned int out_bus_format =3D bridge_state->output_bus_cfg.format; struct dw_dp *dp =3D bridge_to_dp(bridge); struct dw_dp_bridge_state *state; const struct dw_dp_output_format *fmt; @@ -1538,7 +1539,10 @@ static int dw_dp_bridge_atomic_check(struct drm_brid= ge *bridge, state =3D to_dw_dp_bridge_state(bridge_state); mode =3D &state->mode; =20 - fmt =3D dw_dp_get_output_format(bridge_state->output_bus_cfg.format); + if (out_bus_format =3D=3D MEDIA_BUS_FMT_FIXED) + out_bus_format =3D MEDIA_BUS_FMT_RGB888_1X24; + + fmt =3D dw_dp_get_output_format(out_bus_format); if (!fmt) return -EINVAL; =20 --=20 2.53.0