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 640CFD1D478 for ; Thu, 8 Jan 2026 19:04:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=0xTYPYEZSyUOR4owbPfE3fSToiJ/CPOSgdHTNpnvRAc=; b=E3bmjDd7FCmgnzB4Vuf4+jdGaO duCq2vm7df3Oe/0xLNPrXbhtRPMViKxTNS03p1imNLJs9rIEfxR8Wc1ux+G5ttcAuVN5QqWd2Y7my ALw06nisCXq+lDbtTRx1rgKfnP5nU86vb6JbV95UF6R+VwhqMaBGc1qSm/6bepbTRWgpuEnM93Ch2 PRV+ql6VTBBSuujNAX1JzPCqatoNzGP84uxoYDW7UbaVRoq87JhE7DrcLBR28YGeCd7no493McnDx oJgWFXNuM72xP/SxRzJacmmmB989ZxX3nKyaYtQd5Kt0N5vBnFmUsNbECbLrAzc4pqBk/n6fntaHo mkVQ3hRg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vdvIn-00000000hSf-1MrU; Thu, 08 Jan 2026 19:04:09 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vdvIk-00000000hRp-26d9; Thu, 08 Jan 2026 19:04:07 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Type:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Reply-To; bh=0xTYPYEZSyUOR4owbPfE3fSToiJ/CPOSgdHTNpnvRAc=; b=OZcb6i7Kq0PC81CDhI9KMTImkq NobBuzSsnV6t0TfjHzeNm+x67CZVPP5uBcyHc0kSLopeR1utT7FGxlTDD8uG8NbSSAS7gWhAPWpKx FuJVPHFhrQQl/VUhczvxZkbK50oKF2E3eRdOwLyuyO/CxV8LEDjMGguYoFPbqVXKoPMdr2nMvf4U1 JpJ2XUYL9staaJyK8EbqDYTfCkJereVgwZHMq7DZxumaGSv6K544FBd7EvrA9HrT+EVPOsWgK+1Hu lyOIpQI6HjfPQxhhqDk21aqx70ZH3dYd8SBa+K4F/fNkXDpCi5Dd3lQwE4IJ8xQZzxQZP5/furfah GZD4Zn4A==; Received: from [192.76.154.230] (helo=phil.localnet) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1vdvIU-001XS9-BV; Thu, 08 Jan 2026 20:03:50 +0100 From: Heiko Stuebner To: Neil Armstrong , Jessica Zhang , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sandy Huang , Andy Yan , Vinod Koul , Kishon Vijay Abraham I , Chaoyi Chen Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-phy@lists.infradead.org, Chaoyi Chen Subject: Re: [PATCH 8/9] drm/rockchip: Drop ROCKCHIP_IOMMU depend for DRM_ROCKCHIP Date: Thu, 08 Jan 2026 20:03:50 +0100 Message-ID: <4072834.X9hSmTKtgW@phil> In-Reply-To: <20251106020632.92-9-kernel@airkyi.com> References: <20251106020632.92-1-kernel@airkyi.com> <20251106020632.92-9-kernel@airkyi.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260108_110406_586602_E764CFD8 X-CRM114-Status: GOOD ( 17.63 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Am Donnerstag, 6. November 2025, 03:06:31 Mitteleurop=C3=A4ische Normalzeit= schrieb Chaoyi Chen: > From: Chaoyi Chen >=20 > On the RK3506 platform, there is no iommu hardware. And even on > platform that have iommu hardware, it should be possible to use > VOP without enabling iommu. In this case, a contiguous memory > space like CMA should be used. >=20 > So this patch removes the dependency on ROCKCHIP_IOMMU. >=20 > Signed-off-by: Chaoyi Chen > --- > drivers/gpu/drm/rockchip/Kconfig | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) >=20 > diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/= Kconfig > index b7b025814e72..a056d419190c 100644 > --- a/drivers/gpu/drm/rockchip/Kconfig > +++ b/drivers/gpu/drm/rockchip/Kconfig > @@ -1,7 +1,8 @@ > # SPDX-License-Identifier: GPL-2.0-only > config DRM_ROCKCHIP > tristate "DRM Support for Rockchip" > - depends on DRM && ROCKCHIP_IOMMU > + depends on DRM > + depends on ROCKCHIP_IOMMU || !ROCKCHIP_IOMMU I don't really understand this yes+no line :-) Can't you just =2D drop the dependency altogether or =2D do a depends on ROCKCHIP_IOMMU if ARM64 Heiko > depends on OF > select DRM_CLIENT_SELECTION > select DRM_GEM_DMA_HELPER >=20