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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82011C433EF for ; Thu, 7 Apr 2022 06:27:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241094AbiDGG31 (ORCPT ); Thu, 7 Apr 2022 02:29:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241089AbiDGG3Z (ORCPT ); Thu, 7 Apr 2022 02:29:25 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 62F0C1F6BF6; Wed, 6 Apr 2022 23:27:23 -0700 (PDT) X-UUID: 93121cf8a2c048c1a70853a77a6974a5-20220407 X-UUID: 93121cf8a2c048c1a70853a77a6974a5-20220407 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 801607603; Thu, 07 Apr 2022 14:27:16 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Thu, 7 Apr 2022 14:27:14 +0800 Received: from mtksdccf07 (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 7 Apr 2022 14:27:14 +0800 Message-ID: Subject: Re: [RESEND v17 3/7] soc: mediatek: add mtk-mmsys support for mt8195 vdosys0 From: Jason-JH Lin To: CK Hu , Rob Herring , "Matthias Brugger" , Chun-Kuang Hu , AngeloGioacchino Del Regno CC: David Airlie , , "Alexandre Torgue" , , "Fabien Parent" , John 'Warthog9' Hawley , , , , Philipp Zabel , , Daniel Vetter , , , , , , , Maxime Coquelin Date: Thu, 7 Apr 2022 14:27:14 +0800 In-Reply-To: <67b3e42d6a094108f724ed9b8c73f5cd6b2ce219.camel@mediatek.com> References: <20220407030409.9664-1-jason-jh.lin@mediatek.com> <20220407030409.9664-4-jason-jh.lin@mediatek.com> <67b3e42d6a094108f724ed9b8c73f5cd6b2ce219.camel@mediatek.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.2 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-MTK: N Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi CK, Thanks for the reviews. On Thu, 2022-04-07 at 13:45 +0800, CK Hu wrote: > Hi, Jason: > > On Thu, 2022-04-07 at 11:04 +0800, jason-jh.lin wrote: > > 1. Add mt8195 mmsys compatible for vdosys0. > > 2. Add mt8195 routing table settings and fix build fail. > > 3. Add clock name, clock driver name and routing table into the > > driver data > > of mt8195 vdosys0. > > 4. Add get match data by clock name function and clock platform > > labels > > to identify which mmsys node is corresponding to vdosys0. > > > > Signed-off-by: jason-jh.lin > > --- > > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 +- > > drivers/gpu/drm/mediatek/mtk_drm_drv.c | 6 +- > > drivers/soc/mediatek/mt8167-mmsys.h | 2 +- > > drivers/soc/mediatek/mt8183-mmsys.h | 2 +- > > drivers/soc/mediatek/mt8186-mmsys.h | 4 +- > > drivers/soc/mediatek/mt8192-mmsys.h | 4 +- > > drivers/soc/mediatek/mt8195-mmsys.h | 370 > > ++++++++++++++++++++ > > drivers/soc/mediatek/mt8365-mmsys.h | 4 +- > > drivers/soc/mediatek/mtk-mmsys.c | 62 ++++ > > drivers/soc/mediatek/mtk-mmsys.h | 1 + > > drivers/soc/mediatek/mtk-mutex.c | 8 +- > > include/linux/soc/mediatek/mtk-mmsys.h | 13 +- > > 12 files changed, 461 insertions(+), 17 deletions(-) > > create mode 100644 drivers/soc/mediatek/mt8195-mmsys.h > > > > [snip] > > > diff --git a/drivers/soc/mediatek/mtk-mmsys.c > > b/drivers/soc/mediatek/mtk-mmsys.c > > index 4fc4c2c9ea20..b2fa239c5f5f 100644 > > --- a/drivers/soc/mediatek/mtk-mmsys.c > > +++ b/drivers/soc/mediatek/mtk-mmsys.c > > @@ -4,6 +4,8 @@ > > * Author: James Liao > > */ > > > > +#include > > +#include > > #include > > #include > > #include > > @@ -17,6 +19,7 @@ > > #include "mt8183-mmsys.h" > > #include "mt8186-mmsys.h" > > #include "mt8192-mmsys.h" > > +#include "mt8195-mmsys.h" > > #include "mt8365-mmsys.h" > > > > static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data > > = > > { > > @@ -72,12 +75,24 @@ static const struct mtk_mmsys_driver_data > > mt8192_mmsys_driver_data = { > > .num_routes = ARRAY_SIZE(mmsys_mt8192_routing_table), > > }; > > > > +static const struct mtk_mmsys_driver_data > > mt8195_vdosys0_driver_data > > = { > > + .clk_name = "cfg_vdo0", > > + .clk_driver = "clk-mt8195-vdo0", > > + .routes = mmsys_mt8195_routing_table, > > + .num_routes = ARRAY_SIZE(mmsys_mt8195_routing_table), > > +}; > > + > > static const struct mtk_mmsys_driver_data mt8365_mmsys_driver_data > > = > > { > > .clk_driver = "clk-mt8365-mm", > > .routes = mt8365_mmsys_routing_table, > > .num_routes = ARRAY_SIZE(mt8365_mmsys_routing_table), > > }; > > > > +static const struct of_device_id mtk_clk_platform_labels[] = { > > + { .compatible = "mediatek,mt8195-mmsys", > > + .data = (void *)"clk-mt8195"}, > > +}; > > + > > struct mtk_mmsys { > > void __iomem *regs; > > const struct mtk_mmsys_driver_data *data; > > @@ -85,6 +100,45 @@ struct mtk_mmsys { > > struct reset_controller_dev rcdev; > > }; > > > > +static int mtk_mmsys_get_match_data_by_clk_name(const struct > > mtk_mmsys_driver_data **data, > > + struct device *dev) > > +{ > > + int i; > > + struct clk *clk; > > + const char *clk_name; > > + const struct of_device_id *of_id = > > of_match_node(mtk_clk_platform_labels, > > + dev->of_node); > > + const struct mtk_mmsys_driver_data *drvdata[] = { > > + &mt8195_vdosys0_driver_data, > > + }; > > + > > + if (!of_id || !of_id->data) { > > + dev_err(dev, "Can't find match clk platform labels\n"); > > + return -EINVAL; > > + } > > + > > + clk = devm_clk_get(dev, NULL); > > + if (IS_ERR(clk)) { > > + dev_err(dev, "failed to get mmsys clk\n"); > > + return PTR_ERR(clk); > > + } > > + > > + clk_name = __clk_get_name(clk); > > + if (!clk_name) { > > + dev_err(dev, "invalid mmsys clk name\n"); > > + return -EINVAL; > > + } > > + > > + for (i = 0; i < ARRAY_SIZE(drvdata); i++) > > + if (strncmp(drvdata[i]->clk_name, clk_name, > > strlen(clk_name)) == 0 && > > + strncmp(drvdata[i]->clk_driver, of_id->data, > > strlen(of_id->data)) == 0) { > > I think clk_name is enough to identify the mmsys, why do you need > clk_driver? I think there might be another chip that needs to get driver data by clk_name . So I use "clk-mt8195" in clk_driver to identify the corresponding platform whose clk_name of mmsys is also "cfg_vod0". > > + *data = drvdata[i]; > > + return 0; > > + } > > + > > + return -EINVAL; > > +} > > + > > void mtk_mmsys_ddp_connect(struct device *dev, > > enum mtk_ddp_comp_id cur, > > enum mtk_ddp_comp_id next) > > @@ -206,6 +260,11 @@ static int mtk_mmsys_probe(struct > > platform_device *pdev) > > } > > > > mmsys->data = of_device_get_match_data(&pdev->dev); > > + if (!mmsys->data && > > mtk_mmsys_get_match_data_by_clk_name(&mmsys->data, dev) < 0) { > > + dev_err(dev, "Couldn't get match driver data\n"); > > + return -EINVAL; > > + } > > + > > platform_set_drvdata(pdev, mmsys); > > > > clks = platform_device_register_data(&pdev->dev, mmsys->data- > > > clk_driver, > > > > @@ -260,6 +319,9 @@ static const struct of_device_id > > of_match_mtk_mmsys[] = { > > .compatible = "mediatek,mt8192-mmsys", > > .data = &mt8192_mmsys_driver_data, > > }, > > + { > > + .compatible = "mediatek,mt8195-mmsys", > > + }, > > { > > .compatible = "mediatek,mt8365-mmsys", > > .data = &mt8365_mmsys_driver_data, > > > > [snip] > > > b/include/linux/soc/mediatek/mtk-mmsys.h > > index 4bba275e235a..fb719fd1281c 100644 > > --- a/include/linux/soc/mediatek/mtk-mmsys.h > > +++ b/include/linux/soc/mediatek/mtk-mmsys.h > > @@ -16,14 +16,25 @@ enum mtk_ddp_comp_id { > > DDP_COMPONENT_CCORR, > > DDP_COMPONENT_COLOR0, > > DDP_COMPONENT_COLOR1, > > - DDP_COMPONENT_DITHER, > > + DDP_COMPONENT_DITHER0, > > I would like soc and drm modification to go through different tree, > so > this setting would not modify drm driver in this patch. > > DDP_COMPONENT_DITHER0 = DDP_COMPONENT_DITHER, > > Then modify drm driver after this patch. > > Regards, > CK OK, I will use this modification at the next version. Thanks! Regards, Jason-JH.Lin > > > + DDP_COMPONENT_DITHER1, > > + DDP_COMPONENT_DP_INTF0, > > + DDP_COMPONENT_DP_INTF1, > > DDP_COMPONENT_DPI0, > > DDP_COMPONENT_DPI1, > > + DDP_COMPONENT_DSC0, > > + DDP_COMPONENT_DSC1, > > DDP_COMPONENT_DSI0, > > DDP_COMPONENT_DSI1, > > DDP_COMPONENT_DSI2, > > DDP_COMPONENT_DSI3, > > DDP_COMPONENT_GAMMA, > > + DDP_COMPONENT_MERGE0, > > + DDP_COMPONENT_MERGE1, > > + DDP_COMPONENT_MERGE2, > > + DDP_COMPONENT_MERGE3, > > + DDP_COMPONENT_MERGE4, > > + DDP_COMPONENT_MERGE5, > > DDP_COMPONENT_OD0, > > DDP_COMPONENT_OD1, > > DDP_COMPONENT_OVL0, > > -- Jason-JH Lin