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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 46351C43458 for ; Sat, 11 Jul 2026 06:06:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A3C2210E723; Sat, 11 Jul 2026 06:06:45 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="JcbUf8BK"; dkim-atps=neutral Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1B57910E723 for ; Sat, 11 Jul 2026 06:06:45 +0000 (UTC) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 71E726136C; Sat, 11 Jul 2026 06:06:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0CC41F000E9; Sat, 11 Jul 2026 06:06:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783750004; bh=AScS5Hu9MhskSZVYZ+wkLIepGShss4ol+Q0/xHE6sXw=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=JcbUf8BKqR6V04qGks4ExkRAp7s/TnN02xCc6a/G3D2joCiHHbE3vvaRdAqBX486G ZLbednDl50kSPsdrYn0J9LdNWBMlKS3OruJb9MNfxx1xqMGxB7YdxIqbdsGRI7rqin xZLI3oHGnkLNTOgDgrFo0aJgv4JCpYO5WhuJ7yL7qtW7c6Jh2f1+tdHgl4A69Cki+1 qI5Ki+YZcx76evokg0TcYxtEpNotxYXpe5ex5IxQor3Phokx+vF9QQxFygViRVjcT4 E5hWx+WO7Qjepes3jc2bZwA4mjIJvzk1sT7ISGQXFKzi4aqITml7DGjbl21saLQ5Gy Xb37DGfFDiTWA== From: sashiko-bot@kernel.org Subject: Re: [PATCH 05/16] arm: dts: omap3pandora: Don't use DMA channels for unused SPI masters To: "H. Nikolaus Schaller" Cc: devicetree@vger.kernel.org, conor+dt@kernel.org, mfd@lists.linux.dev, dri-devel@lists.freedesktop.org, robh@kernel.org, lee@kernel.org In-Reply-To: <129b1ff8e73235c74ac66dab9041672190065785.1783749722.git.hns@goldelico.com> References: <129b1ff8e73235c74ac66dab9041672190065785.1783749722.git.hns@goldelico.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Sat, 11 Jul 2026 06:06:42 +0000 Message-Id: <20260711060643.C0CC41F000E9@smtp.kernel.org> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sashiko-reviews@lists.linux.dev Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" > From: Grond >=20 > On the pandora, only McSPI1 (spi0) is actually used. Because the device > tree defaults in arch/arm/boot/dts/omap3.dtsi leave all of the mcspi > interfaces enabled, the DMA channels which the device tree assigns to them > cannot be used for anything else. This is a problem because OMAP3's sDMA > controller can only have 32 DMA channels configured at any one time. >=20 > So when we try to use (for example) the McBSP subsystem (which is required > for sound) it doesn't work because we've already exhausted our available > DMA channels. >=20 > Fix this by disabling mcspi[2-4] on the pandora device tree. >=20 > Signed-off-by: Grond > Signed-off-by: H. Nikolaus Schaller Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/cover.1783749722.gi= t.hns@goldelico.com?part=3D5