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[23.128.96.18]) by mx.google.com with ESMTP id c12si3541440edy.152.2020.07.17.06.23.00; Fri, 17 Jul 2020 06:23:22 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=xM67Iwmx; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726734AbgGQNUp (ORCPT + 99 others); Fri, 17 Jul 2020 09:20:45 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:59550 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726446AbgGQNUo (ORCPT ); Fri, 17 Jul 2020 09:20:44 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 06HDKe6m112037; Fri, 17 Jul 2020 08:20:40 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1594992040; bh=UCZPBWE5BRuKb4cOnM3DUnsgMsEyp2k2nTodxng89BI=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=xM67IwmxhtqzMuI0xz5i8N0w+u3W9hmZvBMuF3wt8jF5pocR8hRR237mOd6iYUlsh uP+A23+EfWHsoAthg9fDKqGVGdaYgOgs2V0XYGsOGiqgh+D4RClhLSaEyU8T9LWC78 EkPW7JuKc+oFx8d865KpoVa/SUzcycubusaC1hzs= Received: from DFLE114.ent.ti.com (dfle114.ent.ti.com [10.64.6.35]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 06HDKe9u060974 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 17 Jul 2020 08:20:40 -0500 Received: from DFLE105.ent.ti.com (10.64.6.26) by DFLE114.ent.ti.com (10.64.6.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Fri, 17 Jul 2020 08:20:40 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DFLE105.ent.ti.com (10.64.6.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Fri, 17 Jul 2020 08:20:40 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 06HDKdWj107470; Fri, 17 Jul 2020 08:20:40 -0500 From: Grygorii Strashko To: Peter Ujfalusi , Rob Herring , Santosh Shilimkar , Vinod Koul CC: , , Vignesh Raghavendra , , Sekhar Nori , Grygorii Strashko Subject: [PATCH next v2 4/6] soc: ti: k3-ringacc: add request pair of rings api. Date: Fri, 17 Jul 2020 16:20:17 +0300 Message-ID: <20200717132019.20427-5-grygorii.strashko@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200717132019.20427-1-grygorii.strashko@ti.com> References: <20200717132019.20427-1-grygorii.strashko@ti.com> MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add new API k3_ringacc_request_rings_pair() to request pair of rings at once, as in the most cases Rings are used with DMA channels, which need to request pair of rings - one to feed DMA with descriptors (TX/RX FDQ) and one to receive completions (RX/TX CQ). This will allow to simplify Ringacc API users. Signed-off-by: Grygorii Strashko Reviewed-by: Peter Ujfalusi --- drivers/soc/ti/k3-ringacc.c | 24 ++++++++++++++++++++++++ include/linux/soc/ti/k3-ringacc.h | 4 ++++ 2 files changed, 28 insertions(+) diff --git a/drivers/soc/ti/k3-ringacc.c b/drivers/soc/ti/k3-ringacc.c index 8a8f31d59e24..4cf1150de88e 100644 --- a/drivers/soc/ti/k3-ringacc.c +++ b/drivers/soc/ti/k3-ringacc.c @@ -322,6 +322,30 @@ struct k3_ring *k3_ringacc_request_ring(struct k3_ringacc *ringacc, } EXPORT_SYMBOL_GPL(k3_ringacc_request_ring); +int k3_ringacc_request_rings_pair(struct k3_ringacc *ringacc, + int fwd_id, int compl_id, + struct k3_ring **fwd_ring, + struct k3_ring **compl_ring) +{ + int ret = 0; + + if (!fwd_ring || !compl_ring) + return -EINVAL; + + *fwd_ring = k3_ringacc_request_ring(ringacc, fwd_id, 0); + if (!(*fwd_ring)) + return -ENODEV; + + *compl_ring = k3_ringacc_request_ring(ringacc, compl_id, 0); + if (!(*compl_ring)) { + k3_ringacc_ring_free(*fwd_ring); + ret = -ENODEV; + } + + return ret; +} +EXPORT_SYMBOL_GPL(k3_ringacc_request_rings_pair); + static void k3_ringacc_ring_reset_sci(struct k3_ring *ring) { struct k3_ringacc *ringacc = ring->parent; diff --git a/include/linux/soc/ti/k3-ringacc.h b/include/linux/soc/ti/k3-ringacc.h index 26f73df0a524..7ac115432fa1 100644 --- a/include/linux/soc/ti/k3-ringacc.h +++ b/include/linux/soc/ti/k3-ringacc.h @@ -107,6 +107,10 @@ struct k3_ringacc *of_k3_ringacc_get_by_phandle(struct device_node *np, struct k3_ring *k3_ringacc_request_ring(struct k3_ringacc *ringacc, int id, u32 flags); +int k3_ringacc_request_rings_pair(struct k3_ringacc *ringacc, + int fwd_id, int compl_id, + struct k3_ring **fwd_ring, + struct k3_ring **compl_ring); /** * k3_ringacc_ring_reset - ring reset * @ring: pointer on Ring -- 2.17.1