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Tue, 13 Apr 2021 11:25:53 +0000 From: Biju Das To: Pavel Machek CC: "cip-dev@lists.cip-project.org" , Nobuhiro Iwamatsu , Chris Paterson , Prabhakar Mahadev Lad Subject: Re: [cip-dev] [PATCH 4.19.y-cip] drm: rcar-du: Fix crash when using LVDS1 clock for CRTC Thread-Topic: [PATCH 4.19.y-cip] drm: rcar-du: Fix crash when using LVDS1 clock for CRTC Thread-Index: AQHXLVtz1UDxVgx6CkinWM1fXXtH9qqyQDiAgAAAXbCAABMiAIAAAPFw Date: Tue, 13 Apr 2021 11:25:52 +0000 Message-ID: References: <20210409161436.10953-1-biju.das.jz@bp.renesas.com> <20210413101210.GC26782@amd> <20210413112158.GA13447@duo.ucw.cz> In-Reply-To: <20210413112158.GA13447@duo.ucw.cz> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [86.139.26.210] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: f36f6541-7b3f-4516-ca5f-08d8fe6ee60c x-ms-traffictypediagnostic: OS0PR01MB5409: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:9508; 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contact cip-dev+owner@lists.cip-project.org Reply-To: cip-dev@lists.cip-project.org X-Gm-Message-State: FHpb3SRHEvFYUyNQytiaFcLtx4520388AA= Content-Type: multipart/mixed; boundary="JjFso5xwNPQ1loX7fOyL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lists.cip-project.org; q=dns/txt; s=20140610; t=1618313210; bh=Y+pD+KFflZ2tDrIYZMwcDyd+RH2KLmAYDmVeYRIlXmE=; h=CC:Content-Type:Date:From:Reply-To:Subject:To; b=Lfkg6mIvKMrXeRvLLPdHOIncGf3Wur13j4aX/Xz/4NtsIt4vzkyM/B1rL2KcYdwXXIS DSdHnFIu2rzX6n/nMOytCWq/+lzgJ61X1cf7J+3ky6gMGVUDUNsbJBvA/0hCQ4txRnsJe j507WRsdQxWTZ1TDzH8cbhNT7jfxIjztHvc= --JjFso5xwNPQ1loX7fOyL Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable > Subject: Re: [PATCH 4.19.y-cip] drm: rcar-du: Fix crash when using LVDS1 > clock for CRTC >=20 > Hi! >=20 > > > > On D3 and E3 platforms, the LVDS encoder includes a PLL that can > > > > generate a clock for the corresponding CRTC, used even when the > > > > CRTC output to a non-LVDS port. This mechanism is supported by the > > > > driver, but the implementation is broken in dual-link LVDS mode. > > > > In that case, the LVDS1 drm_encoder is skipped, which causes a > > > > crash when trying to access its bridge later on. > > > > > > > > Fix this by storing bridge pointers internally instead of > > > > retrieving them from the encoder. The rcar_du_device encoders > > > > field isn't used anymore and can be dropped. > > > > > > The patch looks okay to me. I'll test it and can apply it if it > > > works okay. > > > > > > But I don't believe it is in our 5.10, so I'd like it to be > > > submitted for 5.10, too. >=20 > Applied and pushed out. Thanks you. Regards, Biju --JjFso5xwNPQ1loX7fOyL Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Links: You receive all messages sent to this group. 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