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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_SANE_1 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 B4BFCC10F00 for ; Sat, 7 Mar 2020 10:15:30 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 96A9D2073C for ; Sat, 7 Mar 2020 10:15:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 96A9D2073C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 548806E185; Sat, 7 Mar 2020 10:15:08 +0000 (UTC) Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1B24A6E49B for ; Fri, 6 Mar 2020 16:30:23 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: eballetbo) with ESMTPSA id 098DD29681D Subject: Re: [PATCH v11 3/5] soc: mediatek: Move mt8173 MMSYS to platform driver To: Stephen Boyd , airlied@linux.ie, ck.hu@mediatek.com, laurent.pinchart@ideasonboard.com, mark.rutland@arm.com, mturquette@baylibre.com, p.zabel@pengutronix.de, robh+dt@kernel.org, ulrich.hecht+renesas@gmail.com References: <20200302110128.2664251-1-enric.balletbo@collabora.com> <20200302110128.2664251-4-enric.balletbo@collabora.com> <158344207340.7173.8369925839829696256@swboyd.mtv.corp.google.com> From: Enric Balletbo i Serra Message-ID: <8bfc4350-6e92-e657-18f2-3624a2558521@collabora.com> Date: Fri, 6 Mar 2020 17:30:16 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <158344207340.7173.8369925839829696256@swboyd.mtv.corp.google.com> Content-Language: en-US X-Mailman-Approved-At: Sat, 07 Mar 2020 10:14:45 +0000 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: Kate Stewart , Andrew-CT Chen , Minghsiu Tsai , dri-devel@lists.freedesktop.org, Richard Fontana , Collabora Kernel ML , linux-clk@vger.kernel.org, Weiyi Lu , wens@csie.org, linux-arm-kernel@lists.infradead.org, mtk01761 , linux-media@vger.kernel.org, devicetree@vger.kernel.org, frank-w@public-files.de, Seiya Wang , sean.wang@mediatek.com, Houlong Wei , linux-mediatek@lists.infradead.org, hsinyi@chromium.org, Matthias Brugger , Thomas Gleixner , Mauro Carvalho Chehab , Allison Randal , Matthias Brugger , Greg Kroah-Hartman , rdunlap@infradead.org, linux-kernel@vger.kernel.org, matthias.bgg@kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi Stephen, On 5/3/20 22:01, Stephen Boyd wrote: > Quoting Enric Balletbo i Serra (2020-03-02 03:01:26) >> From: Matthias Brugger >> >> There is no strong reason for this to use CLK_OF_DECLARE instead of >> being a platform driver. > > Cool. > >> Plus, this driver provides clocks but also >> a shared register space for the mediatek-drm and the mediatek-mdp >> driver. So move to drivers/soc/mediatek as a platform driver. >> >> Signed-off-by: Matthias Brugger >> Signed-off-by: Enric Balletbo i Serra >> Reviewed-by: CK Hu >> --- >> >> Changes in v11: None >> Changes in v10: >> - Renamed to be generic mtk-mmsys >> - Add driver data support to be able to support diferent SoCs >> >> Changes in v9: >> - Move mmsys to drivers/soc/mediatek (CK) >> >> Changes in v8: >> - Be a builtin_platform_driver like other mediatek mmsys drivers. >> >> Changes in v7: >> - Free clk_data->clks as well >> - Get rid of private data structure >> >> drivers/clk/mediatek/clk-mt8173.c | 104 -------------------- >> drivers/soc/mediatek/Kconfig | 7 ++ >> drivers/soc/mediatek/Makefile | 1 + >> drivers/soc/mediatek/mtk-mmsys.c | 154 ++++++++++++++++++++++++++++++ > > Can you generate with -M so that we can see what has actually changed? > Sure, sorry about that. >> 4 files changed, 162 insertions(+), 104 deletions(-) >> create mode 100644 drivers/soc/mediatek/mtk-mmsys.c >> >> diff --git a/drivers/soc/mediatek/Kconfig b/drivers/soc/mediatek/Kconfig >> index 2114b563478c..7a156944d50e 100644 >> --- a/drivers/soc/mediatek/Kconfig >> +++ b/drivers/soc/mediatek/Kconfig >> @@ -44,4 +44,11 @@ config MTK_SCPSYS >> Say yes here to add support for the MediaTek SCPSYS power domain >> driver. >> >> +config MTK_MMSYS >> + bool "MediaTek MMSYS Support" >> + depends on COMMON_CLK_MT8173 > > Does it need some default so that defconfig updates don't break things? > Right. >> + help >> + Say yes here to add support for the MediaTek Multimedia >> + Subsystem (MMSYS). >> + >> endmenu >> diff --git a/drivers/soc/mediatek/Makefile b/drivers/soc/mediatek/Makefile >> index b01733074ad6..01f9f873634a 100644 >> --- a/drivers/soc/mediatek/Makefile >> +++ b/drivers/soc/mediatek/Makefile >> @@ -3,3 +3,4 @@ obj-$(CONFIG_MTK_CMDQ) += mtk-cmdq-helper.o >> obj-$(CONFIG_MTK_INFRACFG) += mtk-infracfg.o >> obj-$(CONFIG_MTK_PMIC_WRAP) += mtk-pmic-wrap.o >> obj-$(CONFIG_MTK_SCPSYS) += mtk-scpsys.o >> +obj-$(CONFIG_MTK_MMSYS) += mtk-mmsys.o >> diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c >> new file mode 100644 >> index 000000000000..473cdf732fb5 >> --- /dev/null >> +++ b/drivers/soc/mediatek/mtk-mmsys.c >> @@ -0,0 +1,154 @@ >> +// SPDX-License-Identifier: GPL-2.0-only >> +/* >> + * Copyright (c) 2014 MediaTek Inc. >> + * Author: James Liao >> + */ >> + >> +#include >> +#include >> +#include >> + >> +#include "../../clk/mediatek/clk-gate.h" >> +#include "../../clk/mediatek/clk-mtk.h" > > Why not use include/linux/clk/? > I can move these files to include, this will impact a lot more of drivers but, yes, I think is the right way. > But I also don't understand why the clk driver is moved outside of > drivers/clk/ into drivers/soc/. Commit text saying that it has shared > registers doesn't mean it can't still keep the clk driver part in the > drivers/clk/ area. > Actually moving this to the soc directory has been requested by CK (mediatek) as a change in v8. You can see the discussion in [1] Thanks, Enric [1] https://patchwork.kernel.org/cover/11394709/ >> + >> +#include >> + >> +static const struct mtk_gate_regs mm0_cg_regs = { >> + .set_ofs = 0x0104, >> + .clr_ofs = 0x0108, >> + .sta_ofs = 0x0100, >> +}; >> + >> +static const struct mtk_gate_regs mm1_cg_regs = { >> + .set_ofs = 0x0114, >> + .clr_ofs = 0x0118, >> + .sta_ofs = 0x0110, >> +}; _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel