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 X-Spam-Level: X-Spam-Status: No, score=-14.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 00B8FC433E0 for ; Thu, 21 Jan 2021 08:19:22 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 921122399A for ; Thu, 21 Jan 2021 08:19:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 921122399A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; 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Thu, 21 Jan 2021 08:19:08 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l2VBH-0002Qd-2G; Thu, 21 Jan 2021 08:19:04 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 65E1723976; Thu, 21 Jan 2021 08:18:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1611217141; bh=hhhptWrujcElAbSl2ou/FOxBVarF2/4ZICpA78koQKY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mOSdaqmeY7neZr1NBdUhHGAUKUpB/zX8/VLMLHq0RUKZrQm5L/GslnlEd/F0MmgDs KmDJSbUyVPrRRYMjLpHTZFacGkiu2MzPBeB3+ZF/hGQ26lmZlKTazZ/o2LlxuL1E39 DA0psnM6msta+GWNePYVYBp/ct2i+jmVrMIK399eteygz67RoZmJC+y4azViV7HWQV vSzPpc1cJT/RDpgUL4SCbxvsQK27k3yNIIoadcN/3PCMYc1QBowK9ToZ3eru3tWvGG oOS/WNXftOI/g647lAalt85eSJoVi4EI92NujfyXHBgXEm3dIzVO55Mbw7q9I2+3rC gwZRcTkLQpEFA== Date: Thu, 21 Jan 2021 09:18:55 +0100 From: Matthias Brugger To: Chun-Kuang Hu Subject: Re: [PATCH v2 3/5] drm/mediatek: Change disp/ddp term to mutex in mtk mutex driver Message-ID: References: <20210106231729.17173-1-chunkuang.hu@kernel.org> <20210106231729.17173-4-chunkuang.hu@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210121_031903_254117_77FA173A X-CRM114-Status: GOOD ( 24.86 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Daniel Vetter , David Airlie , linux-kernel , DRI Development , Matthias Brugger , "moderated list:ARM/Mediatek SoC support" , Philipp Zabel , CK Hu , Linux ARM Content-Type: text/plain; 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h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mOSdaqmeY7neZr1NBdUhHGAUKUpB/zX8/VLMLHq0RUKZrQm5L/GslnlEd/F0MmgDs KmDJSbUyVPrRRYMjLpHTZFacGkiu2MzPBeB3+ZF/hGQ26lmZlKTazZ/o2LlxuL1E39 DA0psnM6msta+GWNePYVYBp/ct2i+jmVrMIK399eteygz67RoZmJC+y4azViV7HWQV vSzPpc1cJT/RDpgUL4SCbxvsQK27k3yNIIoadcN/3PCMYc1QBowK9ToZ3eru3tWvGG oOS/WNXftOI/g647lAalt85eSJoVi4EI92NujfyXHBgXEm3dIzVO55Mbw7q9I2+3rC gwZRcTkLQpEFA== Date: Thu, 21 Jan 2021 09:18:55 +0100 From: Matthias Brugger To: Chun-Kuang Hu Subject: Re: [PATCH v2 3/5] drm/mediatek: Change disp/ddp term to mutex in mtk mutex driver Message-ID: References: <20210106231729.17173-1-chunkuang.hu@kernel.org> <20210106231729.17173-4-chunkuang.hu@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210121_031903_254117_77FA173A X-CRM114-Status: GOOD ( 24.86 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Daniel Vetter , David Airlie , linux-kernel , DRI Development , Matthias Brugger , "moderated list:ARM/Mediatek SoC support" , Philipp Zabel , CK Hu , Linux ARM Content-Type: text/plain; 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a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1611217141; bh=hhhptWrujcElAbSl2ou/FOxBVarF2/4ZICpA78koQKY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mOSdaqmeY7neZr1NBdUhHGAUKUpB/zX8/VLMLHq0RUKZrQm5L/GslnlEd/F0MmgDs KmDJSbUyVPrRRYMjLpHTZFacGkiu2MzPBeB3+ZF/hGQ26lmZlKTazZ/o2LlxuL1E39 DA0psnM6msta+GWNePYVYBp/ct2i+jmVrMIK399eteygz67RoZmJC+y4azViV7HWQV vSzPpc1cJT/RDpgUL4SCbxvsQK27k3yNIIoadcN/3PCMYc1QBowK9ToZ3eru3tWvGG oOS/WNXftOI/g647lAalt85eSJoVi4EI92NujfyXHBgXEm3dIzVO55Mbw7q9I2+3rC gwZRcTkLQpEFA== Date: Thu, 21 Jan 2021 09:18:55 +0100 From: Matthias Brugger To: Chun-Kuang Hu Subject: Re: [PATCH v2 3/5] drm/mediatek: Change disp/ddp term to mutex in mtk mutex driver Message-ID: References: <20210106231729.17173-1-chunkuang.hu@kernel.org> <20210106231729.17173-4-chunkuang.hu@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: 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: , Cc: David Airlie , linux-kernel , DRI Development , Matthias Brugger , "moderated list:ARM/Mediatek SoC support" , Linux ARM Content-Type: text/plain; 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Thu, 21 Jan 2021 08:26:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 37BDD23977 for ; Thu, 21 Jan 2021 08:26:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728021AbhAUI03 (ORCPT ); Thu, 21 Jan 2021 03:26:29 -0500 Received: from mail.kernel.org ([198.145.29.99]:52864 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727001AbhAUITz (ORCPT ); Thu, 21 Jan 2021 03:19:55 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 65E1723976; Thu, 21 Jan 2021 08:18:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1611217141; bh=hhhptWrujcElAbSl2ou/FOxBVarF2/4ZICpA78koQKY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mOSdaqmeY7neZr1NBdUhHGAUKUpB/zX8/VLMLHq0RUKZrQm5L/GslnlEd/F0MmgDs KmDJSbUyVPrRRYMjLpHTZFacGkiu2MzPBeB3+ZF/hGQ26lmZlKTazZ/o2LlxuL1E39 DA0psnM6msta+GWNePYVYBp/ct2i+jmVrMIK399eteygz67RoZmJC+y4azViV7HWQV vSzPpc1cJT/RDpgUL4SCbxvsQK27k3yNIIoadcN/3PCMYc1QBowK9ToZ3eru3tWvGG oOS/WNXftOI/g647lAalt85eSJoVi4EI92NujfyXHBgXEm3dIzVO55Mbw7q9I2+3rC gwZRcTkLQpEFA== Date: Thu, 21 Jan 2021 09:18:55 +0100 From: Matthias Brugger To: Chun-Kuang Hu Cc: Philipp Zabel , David Airlie , linux-kernel , DRI Development , CK Hu , "moderated list:ARM/Mediatek SoC support" , Daniel Vetter , Matthias Brugger , Linux ARM Subject: Re: [PATCH v2 3/5] drm/mediatek: Change disp/ddp term to mutex in mtk mutex driver Message-ID: References: <20210106231729.17173-1-chunkuang.hu@kernel.org> <20210106231729.17173-4-chunkuang.hu@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 21, 2021 at 07:46:44AM +0800, Chun-Kuang Hu wrote: > Hi, Matthias: > > Matthias Brugger 於 2021年1月21日 週四 上午2:27寫道： > > > > On Thu, Jan 07, 2021 at 07:17:27AM +0800, Chun-Kuang Hu wrote: > > > From: CK Hu > > > > > > mtk mutex is used by both drm and mdp driver, so change disp/ddp term to > > > mutex to show that it's a common driver for drm and mdp. > > > > > > Signed-off-by: CK Hu > > > Signed-off-by: Chun-Kuang Hu > > > --- > > > drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 30 +-- > > > drivers/gpu/drm/mediatek/mtk_drm_drv.c | 2 +- > > > drivers/gpu/drm/mediatek/mtk_drm_drv.h | 2 +- > > > drivers/gpu/drm/mediatek/mtk_mutex.c | 305 ++++++++++++------------ > > > drivers/gpu/drm/mediatek/mtk_mutex.h | 26 +- > > > 5 files changed, 182 insertions(+), 183 deletions(-) > > > > > [...] > > > diff --git a/drivers/gpu/drm/mediatek/mtk_mutex.c b/drivers/gpu/drm/mediatek/mtk_mutex.c > > > index 1c8a253f4788..98a060bf225d 100644 > > > --- a/drivers/gpu/drm/mediatek/mtk_mutex.c > > > +++ b/drivers/gpu/drm/mediatek/mtk_mutex.c > > [...] > > > > > > -static const struct of_device_id ddp_driver_dt_match[] = { > > > +static const struct of_device_id mutex_driver_dt_match[] = { > > > { .compatible = "mediatek,mt2701-disp-mutex", > > > - .data = &mt2701_ddp_driver_data}, > > > + .data = &mt2701_mutex_driver_data}, > > > { .compatible = "mediatek,mt2712-disp-mutex", > > > - .data = &mt2712_ddp_driver_data}, > > > + .data = &mt2712_mutex_driver_data}, > > > { .compatible = "mediatek,mt8167-disp-mutex", > > > - .data = &mt8167_ddp_driver_data}, > > > + .data = &mt8167_mutex_driver_data}, > > > { .compatible = "mediatek,mt8173-disp-mutex", > > > - .data = &mt8173_ddp_driver_data}, > > > + .data = &mt8173_mutex_driver_data}, > > > {}, > > > }; > > > -MODULE_DEVICE_TABLE(of, ddp_driver_dt_match); > > > +MODULE_DEVICE_TABLE(of, mutex_driver_dt_match); > > > > I think it would make sense in a follow-up patch to update the binding > > to use "mediatek,mt2701-mutex" to reflect that mutex is used for drm and > > mdp driver. Make sense? > > Yes, it make sense. I would try to update the binding, but I wonder > device tree should be backward compatible? Let's discuss in that > follow-up patches. > >From my understanding, we will need to keep the of_device_id entries for the old binding in the driver (so that old DTs still work) while we should enforce the new binding. I'm not sure if the yaml has a option for out-of-date compatibles. Regards, Matthias