From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3DD0DC433EF for ; Thu, 31 Mar 2022 03:16:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Mime-Version:Message-ID:To:From:CC:In-Reply-To: Subject:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References:List-Owner; bh=r3DVox8vgsFeD9WzxSF9bQTSYq+H3z53MZrUaUzJLgw=; b=Kh2Gt7PosRfJqXp3yKLf0LeKdg /vf8HO5nZ3t3QnF3Qi776bH8DyQmuprgn/wQhqQbNu12UuAg19q453bGpSfzyniUHP2uvP7rM4qHx OE2u9svFdT4kcvPbMMZOeII3UQNa8l0BenhAGduu9xAN+aqSYtCgwI9wOOtL8aqhDO3ISWAiLfS3b 7fKMr4lEt5XpZd0xKsGhuo7pnQrzQDccc4pIQRZTZR/IlbTerYagIZqnq2cpidbFBbUGXhs7vPtRS rAiFXlLD7YYKTRZHq9yBWasc5z5NCNfp0jJyJ1QBz4XlEFpQhx03iLKe6L2gKfRgmi7yUIZuvyT3A +u9a7fWQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nZlHy-000W0d-20; Thu, 31 Mar 2022 03:15:58 +0000 Received: from mail-pf1-x430.google.com ([2607:f8b0:4864:20::430]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nZlHv-000W0F-SM for linux-riscv@lists.infradead.org; Thu, 31 Mar 2022 03:15:57 +0000 Received: by mail-pf1-x430.google.com with SMTP id y10so17376299pfa.7 for ; Wed, 30 Mar 2022 20:15:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dabbelt-com.20210112.gappssmtp.com; s=20210112; h=date:subject:in-reply-to:cc:from:to:message-id:mime-version :content-transfer-encoding; bh=su81uPGLPlEfo3kKBvUrtbr7Q1bO5QHvXSGg8dkL+fQ=; b=GYdBweRk6GWXxrgZswn1g1wP5TqlOb2xYijX08he5T593LHNvihsBdxclepFnR7wPA EFDojWqpJICiiOKuQB//cisuhUNkO2u5FfDMfQ7xraDnZxIEaXhE6D+qkAGFe35j0/rl RO1qQO2LmKibxy7DGGirkpOSCxRw8dZ1qqwkj5cP30AjJuMIpCmQTXt3dxGQDeMiEtGh d5Q45bU3pivpOU71UsQ4SeFHJOX5d+mhVbGaKTWoO3ihezhVAZ1Mq0dvBZ4CY44+2+zJ Rnop+XYoeO70UTzueOxVxj/wtrVhWM9hBdPQqsaCO5lfOkdCgm02VVu0RnVDsDwNYnXW NNcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:subject:in-reply-to:cc:from:to:message-id :mime-version:content-transfer-encoding; bh=su81uPGLPlEfo3kKBvUrtbr7Q1bO5QHvXSGg8dkL+fQ=; b=qU/kxl8IjOvsOFfg1W5I3sjtyoz6/lkIdSQ4y/62cP8J4uirP+k3eiY6o7lvDg9EwL R15gAjg/gH8KQ0cacHd8ikNoLo4MxlsFe4RaGSD3dptIUi+KoLWIB5ef9dYEcRD93iRo aIygfZV3MasQ2GPOoyHc577620fyJaBSvtVmmwFq4699j3mtIVUxdgcOgdJwW5aeDF8S sTCbUOQybz4YlGrDfUHWYLwtBsdO0B9nt5YIPARHQm9g5m70HEPfbWGrGt1CP9oN4QVP 0E9kzib90yTNt95JOQnZjqzg9vt3v0uEfwV8CDlI+XhGlm4CJq6yD6oAi4+LwxUPUD0M S0fw== X-Gm-Message-State: AOAM530kmvbcVFWyLvbM9/5H3040McIyq9j1yfLNCEsaQzaZMbgFmbMf UENUvWeFKOfx+Q9hb+2X4WWoKA== X-Google-Smtp-Source: ABdhPJxn9RkJDNkJxLQzGDRKo5bfKfQwmmRCBZ37Qr3/YIQ4rdiA5g9/oIepoLeX5+Fe6RYyeS5Nqw== X-Received: by 2002:a65:6d87:0:b0:374:2525:dcb0 with SMTP id bc7-20020a656d87000000b003742525dcb0mr8997668pgb.248.1648696554441; Wed, 30 Mar 2022 20:15:54 -0700 (PDT) Received: from localhost ([12.3.194.138]) by smtp.gmail.com with ESMTPSA id w9-20020a056a0014c900b004fb2ca5f6d7sm17801820pfu.136.2022.03.30.20.15.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Mar 2022 20:15:53 -0700 (PDT) Date: Wed, 30 Mar 2022 20:15:53 -0700 (PDT) X-Google-Original-Date: Wed, 30 Mar 2022 20:15:50 PDT (-0700) Subject: Re: [PATCH v8 0/4] Determine the number of DMA channels by 'dma-channels' property In-Reply-To: CC: robh+dt@kernel.org, Paul Walmsley , aou@eecs.berkeley.edu, krzysztof.kozlowski@canonical.com, conor.dooley@microchip.com, geert@linux-m68k.org, bin.meng@windriver.com, green.wan@sifive.com, vkoul@kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, zong.li@sifive.com From: Palmer Dabbelt To: zong.li@sifive.com Message-ID: Mime-Version: 1.0 (MHng) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220330_201555_961313_A83599E9 X-CRM114-Status: GOOD ( 18.62 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Mon, 28 Mar 2022 02:52:21 PDT (-0700), zong.li@sifive.com wrote: > The PDMA driver currently assumes there are four channels by default, it > might cause the error if there is actually less than four channels. > Change that by getting number of channel dynamically from device tree. > For backwards-compatible, it uses the default value (i.e. 4) when there > is no 'dma-channels' information in dts. > > This patch set contains the dts and dt-bindings change. > > Changed in v8: > - Rebase on master > - Remove modification of microchip-mpfs.dtsi > - Rename DMA node name of fu540-c000.dtsi > > Changed in v7: > - Rebase on tag v5.17-rc7 > - Modify the subject of patch > > Changed in v6: > - Rebase on tag v5.17-rc6 > - Change sf_pdma.chans[] to a flexible array member. > > Changed in v5: > - Rebase on tag v5.17-rc3 > - Fix typo in dt-bindings and commit message > - Add PDMA versioning scheme for compatible > > Changed in v4: > - Remove cflags of debug use reported-by: kernel test robot > > Changed in v3: > - Fix allocating wrong size > - Return error if 'dma-channels' is larger than maximum > > Changed in v2: > - Rebase on tag v5.16 > - Use 4 as default value of dma-channels > > Zong Li (4): > dt-bindings: dma-engine: sifive,fu540: Add dma-channels property and > modify compatible > riscv: dts: Add dma-channels property and modify compatible > riscv: dts: rename the node name of dma > dmaengine: sf-pdma: Get number of channel by device tree > > .../bindings/dma/sifive,fu540-c000-pdma.yaml | 19 +++++++++++++-- > arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 5 ++-- > drivers/dma/sf-pdma/sf-pdma.c | 24 ++++++++++++------- > drivers/dma/sf-pdma/sf-pdma.h | 8 ++----- > 4 files changed, 38 insertions(+), 18 deletions(-) Thanks, these are on for-next. _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv From mboxrd@z Thu Jan 1 00:00:00 1970 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 2D509C433F5 for ; Thu, 31 Mar 2022 04:12:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229615AbiCaEN6 (ORCPT ); Thu, 31 Mar 2022 00:13:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50470 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229676AbiCaEM6 (ORCPT ); Thu, 31 Mar 2022 00:12:58 -0400 Received: from mail-il1-x133.google.com (mail-il1-x133.google.com [IPv6:2607:f8b0:4864:20::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 235C357176 for ; Wed, 30 Mar 2022 20:52:04 -0700 (PDT) Received: by mail-il1-x133.google.com with SMTP id j15so15877777ila.13 for ; Wed, 30 Mar 2022 20:52:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dabbelt-com.20210112.gappssmtp.com; s=20210112; h=date:subject:in-reply-to:cc:from:to:message-id:mime-version :content-transfer-encoding; bh=su81uPGLPlEfo3kKBvUrtbr7Q1bO5QHvXSGg8dkL+fQ=; b=GYdBweRk6GWXxrgZswn1g1wP5TqlOb2xYijX08he5T593LHNvihsBdxclepFnR7wPA EFDojWqpJICiiOKuQB//cisuhUNkO2u5FfDMfQ7xraDnZxIEaXhE6D+qkAGFe35j0/rl RO1qQO2LmKibxy7DGGirkpOSCxRw8dZ1qqwkj5cP30AjJuMIpCmQTXt3dxGQDeMiEtGh d5Q45bU3pivpOU71UsQ4SeFHJOX5d+mhVbGaKTWoO3ihezhVAZ1Mq0dvBZ4CY44+2+zJ Rnop+XYoeO70UTzueOxVxj/wtrVhWM9hBdPQqsaCO5lfOkdCgm02VVu0RnVDsDwNYnXW NNcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:subject:in-reply-to:cc:from:to:message-id :mime-version:content-transfer-encoding; bh=su81uPGLPlEfo3kKBvUrtbr7Q1bO5QHvXSGg8dkL+fQ=; b=VFouZGXxQOcysnkSv/jBQKwBq+C0f/sU3kujPNoIdc43o8w4wtNAyni73sSrncZ/dV eKtWb8EQnVgqyxBdFcK0J3d1ej/pyIjgEwt85hlSOvawgBwxBL3cfpIu+vi/wm5e3j7C cueTeZa4l9y9uICrwg0JvtYZDpWppcDuNpvRme/fHRT3+hf7kupFcq96Xy6bNzWWdu+Z nAe71o9ag2OJJ7FS3FvF1Fz6g2dvI+YgLKMm0wuTfS4KK2ND31RTvi9Z/Kr0Fa1h9npD ILgeh7rSahUVLKnZ/LEDAjNQwHIJbN7xvWoNyFWop85OQGIqht0RRnUKnrQv1leP/hvL pcnw== X-Gm-Message-State: AOAM530xMmCSapAKzAr7Ws4G4FQwAsZXZ4jrOvr28kFhvhtR2Ym7ngo7 Gt3SWII5Nwluo314CNDB25bTi0Om+bfpvg== X-Google-Smtp-Source: ABdhPJxn9RkJDNkJxLQzGDRKo5bfKfQwmmRCBZ37Qr3/YIQ4rdiA5g9/oIepoLeX5+Fe6RYyeS5Nqw== X-Received: by 2002:a65:6d87:0:b0:374:2525:dcb0 with SMTP id bc7-20020a656d87000000b003742525dcb0mr8997668pgb.248.1648696554441; Wed, 30 Mar 2022 20:15:54 -0700 (PDT) Received: from localhost ([12.3.194.138]) by smtp.gmail.com with ESMTPSA id w9-20020a056a0014c900b004fb2ca5f6d7sm17801820pfu.136.2022.03.30.20.15.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Mar 2022 20:15:53 -0700 (PDT) Date: Wed, 30 Mar 2022 20:15:53 -0700 (PDT) X-Google-Original-Date: Wed, 30 Mar 2022 20:15:50 PDT (-0700) Subject: Re: [PATCH v8 0/4] Determine the number of DMA channels by 'dma-channels' property In-Reply-To: CC: robh+dt@kernel.org, Paul Walmsley , aou@eecs.berkeley.edu, krzysztof.kozlowski@canonical.com, conor.dooley@microchip.com, geert@linux-m68k.org, bin.meng@windriver.com, green.wan@sifive.com, vkoul@kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, zong.li@sifive.com From: Palmer Dabbelt To: zong.li@sifive.com Message-ID: Mime-Version: 1.0 (MHng) Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org On Mon, 28 Mar 2022 02:52:21 PDT (-0700), zong.li@sifive.com wrote: > The PDMA driver currently assumes there are four channels by default, it > might cause the error if there is actually less than four channels. > Change that by getting number of channel dynamically from device tree. > For backwards-compatible, it uses the default value (i.e. 4) when there > is no 'dma-channels' information in dts. > > This patch set contains the dts and dt-bindings change. > > Changed in v8: > - Rebase on master > - Remove modification of microchip-mpfs.dtsi > - Rename DMA node name of fu540-c000.dtsi > > Changed in v7: > - Rebase on tag v5.17-rc7 > - Modify the subject of patch > > Changed in v6: > - Rebase on tag v5.17-rc6 > - Change sf_pdma.chans[] to a flexible array member. > > Changed in v5: > - Rebase on tag v5.17-rc3 > - Fix typo in dt-bindings and commit message > - Add PDMA versioning scheme for compatible > > Changed in v4: > - Remove cflags of debug use reported-by: kernel test robot > > Changed in v3: > - Fix allocating wrong size > - Return error if 'dma-channels' is larger than maximum > > Changed in v2: > - Rebase on tag v5.16 > - Use 4 as default value of dma-channels > > Zong Li (4): > dt-bindings: dma-engine: sifive,fu540: Add dma-channels property and > modify compatible > riscv: dts: Add dma-channels property and modify compatible > riscv: dts: rename the node name of dma > dmaengine: sf-pdma: Get number of channel by device tree > > .../bindings/dma/sifive,fu540-c000-pdma.yaml | 19 +++++++++++++-- > arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 5 ++-- > drivers/dma/sf-pdma/sf-pdma.c | 24 ++++++++++++------- > drivers/dma/sf-pdma/sf-pdma.h | 8 ++----- > 4 files changed, 38 insertions(+), 18 deletions(-) Thanks, these are on for-next.