From nobody Thu Feb 12 05:12:10 2026 Received: from lelv0143.ext.ti.com (lelv0143.ext.ti.com [198.47.23.248]) (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 BAF5B1940B2 for ; Mon, 17 Jun 2024 10:53:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.23.248 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718621631; cv=none; b=NX6BOHrkAX6a/bXGq6LHPV29gvBFxShzwi+3yMUtXslbGUa7P10g3ORucT48DH4sv03dd+2zD8fQaNAmPDrzIxkYVWOR08VWX+XXI1dUNQVVHNSCzzMcgKV1RRPCiKSPc8jfjPtXL23lIUc09062t/XIqnmMjd54o90dlw/kLrg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718621631; c=relaxed/simple; bh=B4HSoHZe4mXH6yXAGGx4efTr9LA86e8f3NrDzqbgN3s=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=kdgxoOrELta3/Tx6r92PACNYW0K/6a23GehIbFwHn9DT72+a1A9nMfxOA8xlrbBP4jsKC1JfsB5NMYSwK6ZeRbpGWSOrCWj9WZfEBo6034uosuxDxof54c5J7MFdWGzDJJgoE1utoaAEtFwX2QVaNd2BaK+yRDEPWMyMGwRE9U4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=Bqz8t8hp; arc=none smtp.client-ip=198.47.23.248 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="Bqz8t8hp" Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 45HArP7Q116910; Mon, 17 Jun 2024 05:53:25 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1718621605; bh=Kex6HF3rK0mh9vKd+0B9OMPGJPo2pSwVSBIzl82Eewg=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Bqz8t8hpdgqw9ED1ul3OG6ukN7vPvZDaGNQJuMWgpehJcmuv65yE4Rkkt51M3363t ZzgeQJYt9EUxSPSsaFDSGxwkz1LR/Du50iDFFLzfax/vMIPxJotoMyAiH9waB+2aFi CxEsbXvT7Ry4vJ/rlOXEDLuHA2RswMoqGpq0Gzrc= Received: from DFLE101.ent.ti.com (dfle101.ent.ti.com [10.64.6.22]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 45HArPjB065328 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 17 Jun 2024 05:53:25 -0500 Received: from DFLE110.ent.ti.com (10.64.6.31) by DFLE101.ent.ti.com (10.64.6.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Mon, 17 Jun 2024 05:53:24 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DFLE110.ent.ti.com (10.64.6.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Mon, 17 Jun 2024 05:53:24 -0500 Received: from localhost (uda0496377.dhcp.ti.com [172.24.227.31]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 45HArOPh106178; Mon, 17 Jun 2024 05:53:24 -0500 From: Aradhya Bhatia To: Dmitry Baryshkov , Tomi Valkeinen , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Jyri Sarha , Thomas Zimmermann , David Airlie , Daniel Vetter CC: DRI Development List , Linux Kernel List , Dominik Haller , Sam Ravnborg , Thierry Reding , Kieran Bingham , Nishanth Menon , Vignesh Raghavendra , Praneeth Bajjuri , Udit Kumar , Devarsh Thakkar , Jayesh Choudhary , Jai Luthra , Aradhya Bhatia Subject: [PATCH v3 08/10] drm/bridge: cdns-dsi: Support atomic bridge APIs Date: Mon, 17 Jun 2024 16:23:09 +0530 Message-ID: <20240617105311.1587489-9-a-bhatia1@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240617105311.1587489-1-a-bhatia1@ti.com> References: <20240617105311.1587489-1-a-bhatia1@ti.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Content-Type: text/plain; charset="utf-8" Change the existing (and deprecated) bridge hooks, to the bridge atomic APIs. Add drm helpers for duplicate_state, destroy_state, and bridge_reset bridge hooks. Further add support for the input format negotiation hook. Reviewed-by: Dmitry Baryshkov Signed-off-by: Aradhya Bhatia --- .../gpu/drm/bridge/cadence/cdns-dsi-core.c | 51 ++++++++++++++++--- 1 file changed, 43 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c b/drivers/gpu/d= rm/bridge/cadence/cdns-dsi-core.c index 87fdd07ca0bc..acbd4007b38c 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c @@ -655,7 +655,8 @@ cdns_dsi_bridge_mode_valid(struct drm_bridge *bridge, return MODE_OK; } =20 -static void cdns_dsi_bridge_disable(struct drm_bridge *bridge) +static void cdns_dsi_bridge_atomic_disable(struct drm_bridge *bridge, + struct drm_bridge_state *old_bridge_state) { struct cdns_dsi_input *input =3D bridge_to_cdns_dsi_input(bridge); struct cdns_dsi *dsi =3D input_to_dsi(input); @@ -675,7 +676,8 @@ static void cdns_dsi_bridge_disable(struct drm_bridge *= bridge) pm_runtime_put(dsi->base.dev); } =20 -static void cdns_dsi_bridge_post_disable(struct drm_bridge *bridge) +static void cdns_dsi_bridge_atomic_post_disable(struct drm_bridge *bridge, + struct drm_bridge_state *old_bridge_state) { struct cdns_dsi_input *input =3D bridge_to_cdns_dsi_input(bridge); struct cdns_dsi *dsi =3D input_to_dsi(input); @@ -752,7 +754,8 @@ static void cdns_dsi_init_link(struct cdns_dsi *dsi) dsi->link_initialized =3D true; } =20 -static void cdns_dsi_bridge_enable(struct drm_bridge *bridge) +static void cdns_dsi_bridge_atomic_enable(struct drm_bridge *bridge, + struct drm_bridge_state *old_bridge_state) { struct cdns_dsi_input *input =3D bridge_to_cdns_dsi_input(bridge); struct cdns_dsi *dsi =3D input_to_dsi(input); @@ -903,7 +906,8 @@ static void cdns_dsi_bridge_enable(struct drm_bridge *b= ridge) writel(tmp, dsi->regs + MCTL_MAIN_EN); } =20 -static void cdns_dsi_bridge_pre_enable(struct drm_bridge *bridge) +static void cdns_dsi_bridge_atomic_pre_enable(struct drm_bridge *bridge, + struct drm_bridge_state *old_bridge_state) { struct cdns_dsi_input *input =3D bridge_to_cdns_dsi_input(bridge); struct cdns_dsi *dsi =3D input_to_dsi(input); @@ -915,13 +919,44 @@ static void cdns_dsi_bridge_pre_enable(struct drm_bri= dge *bridge) cdns_dsi_hs_init(dsi); } =20 +static u32 *cdns_dsi_bridge_get_input_bus_fmts(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state, + u32 output_fmt, + unsigned int *num_input_fmts) +{ + struct cdns_dsi_input *input =3D bridge_to_cdns_dsi_input(bridge); + struct cdns_dsi *dsi =3D input_to_dsi(input); + struct cdns_dsi_output *output =3D &dsi->output; + u32 *input_fmts; + + *num_input_fmts =3D 0; + + input_fmts =3D kzalloc(sizeof(*input_fmts), GFP_KERNEL); + if (!input_fmts) + return NULL; + + input_fmts[0] =3D drm_mipi_dsi_get_input_bus_fmt(output->dev->format); + if (!input_fmts[0]) + return NULL; + + *num_input_fmts =3D 1; + + return input_fmts; +} + static const struct drm_bridge_funcs cdns_dsi_bridge_funcs =3D { .attach =3D cdns_dsi_bridge_attach, .mode_valid =3D cdns_dsi_bridge_mode_valid, - .disable =3D cdns_dsi_bridge_disable, - .pre_enable =3D cdns_dsi_bridge_pre_enable, - .enable =3D cdns_dsi_bridge_enable, - .post_disable =3D cdns_dsi_bridge_post_disable, + .atomic_disable =3D cdns_dsi_bridge_atomic_disable, + .atomic_pre_enable =3D cdns_dsi_bridge_atomic_pre_enable, + .atomic_enable =3D cdns_dsi_bridge_atomic_enable, + .atomic_post_disable =3D cdns_dsi_bridge_atomic_post_disable, + .atomic_duplicate_state =3D drm_atomic_helper_bridge_duplicate_state, + .atomic_destroy_state =3D drm_atomic_helper_bridge_destroy_state, + .atomic_reset =3D drm_atomic_helper_bridge_reset, + .atomic_get_input_bus_fmts =3D cdns_dsi_bridge_get_input_bus_fmts, }; =20 static int cdns_dsi_attach(struct mipi_dsi_host *host, --=20 2.34.1