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 A959FC433F5 for ; Thu, 27 Jan 2022 07:04:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237074AbiA0HD7 (ORCPT ); Thu, 27 Jan 2022 02:03:59 -0500 Received: from ams.source.kernel.org ([145.40.68.75]:34280 "EHLO ams.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229823AbiA0HD5 (ORCPT ); Thu, 27 Jan 2022 02:03:57 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 72031B82187; Thu, 27 Jan 2022 07:03:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6C8A5C340E4; Thu, 27 Jan 2022 07:03:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1643267035; bh=rVD0fNy0bHKOsHsV7IPqLXUyMJvfQuj7ygoyxxP4qC4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=tCmpCcLYDfjiMMy+DuRgqx6vluJdfbhMOZkWMtUHfQ1FPyflbWdzAYwYQWiSxFzep ULw4GEZj5JOHfY/XmsnxZsFakYlEW4ByaZhGtYqvFInM8PMgoNQkV6IO5IxIbKUjDm MGgBYPmJC+SOO9D3af7LVwSR86dkb9Ebxx+9oyE7kczukhUJNJoY0wuKhVG69wQdaW MK9wvVwwxePncyTbhAUz3IdUZ8m0/TpEUgLx4D02EtMjigTeHOxVOdhWjYpolA/CLd T44UAR1q/xJ2osHtf61kWFdC+Ge0SbazJl8Ae9ZRJGSS7nbCKE1myB7NhgWgYpSCBd Ttg7qF9ql7nSA== Date: Thu, 27 Jan 2022 12:33:51 +0530 From: Vinod Koul To: Zong Li Cc: robh+dt@kernel.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, krzysztof.kozlowski@canonical.com, conor.dooley@microchip.com, geert@linux-m68k.org, bin.meng@windriver.com, green.wan@sifive.com, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org Subject: Re: [PATCH v4 1/3] riscv: dts: Add dma-channels property in dma node Message-ID: References: <163a2cf11b2aceee2a1b8dc83251576d2371d4a6.1642383007.git.zong.li@sifive.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <163a2cf11b2aceee2a1b8dc83251576d2371d4a6.1642383007.git.zong.li@sifive.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 17-01-22, 09:35, Zong Li wrote: > Add dma-channels property, then we can determine how many channels there > by device tree. > > Signed-off-by: Zong Li > --- > arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi | 1 + > arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 1 + > 2 files changed, 2 insertions(+) > > diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi > index c9f6d205d2ba..3c48f2d7a4a4 100644 > --- a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi > +++ b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi > @@ -188,6 +188,7 @@ dma@3000000 { Unrelated but the node name should be dma-controller@... > reg = <0x0 0x3000000 0x0 0x8000>; > interrupt-parent = <&plic>; > interrupts = <23 24 25 26 27 28 29 30>; > + dma-channels = <4>; > #dma-cells = <1>; > }; > > diff --git a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi > index 0655b5c4201d..2bdfe7f06e4b 100644 > --- a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi > +++ b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi > @@ -171,6 +171,7 @@ dma: dma@3000000 { > reg = <0x0 0x3000000 0x0 0x8000>; > interrupt-parent = <&plic0>; > interrupts = <23 24 25 26 27 28 29 30>; > + dma-channels = <4>; > #dma-cells = <1>; > }; > uart1: serial@10011000 { > -- > 2.31.1 -- ~Vinod