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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_SANE_2 autolearn=ham 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 9D716C4321A for ; Fri, 28 Jun 2019 06:11:19 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 71AC12070D for ; Fri, 28 Jun 2019 06:11:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="eqsCsFdW" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 71AC12070D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Date:To:From:Subject:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=v3HcHyz9uUalPV/4Li3tCXvbbpkAvYfm/9UqDylwlaI=; b=eqsCsFdWErRWjK 0YMwnLr8XjFANvzWf4v3gbH4l0QFuHzpU3S4WubH8DQYoqtEIdKuR6PzzBCf2d2joo1huA/KFJ8hs NO+sVuz+6AY9QhkLrWoIzULwJmnuN7QVlUHJQuNAutu1YRQNG2o6fjjW1WzXDfIVThz6IFnEXZFYi gBk82GY+aeIHTlRjV7IEkwEjp5lq8vdB5u2OLZ7UYEHdpMBrlJz3RSiBCDNna96iEIbNXh0+cnUva OHaiYQsKmF39nDyuy+ynG9C6iUsnHPWia/RWX/SdsnZUlC/v5Jfk/9LTTTbiLRg4A/olvySSyjaUg 4u7tBGtTRAw3QkD++y1Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hgk6P-00048M-2h; Fri, 28 Jun 2019 06:11:17 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hgk6L-00045e-2y; Fri, 28 Jun 2019 06:11:14 +0000 X-UUID: 16f4788237fa412ca1831de41356011e-20190627 X-UUID: 16f4788237fa412ca1831de41356011e-20190627 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 2059652609; Thu, 27 Jun 2019 22:11:08 -0800 Received: from MTKMBS33DR.mediatek.inc (172.27.6.106) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 27 Jun 2019 23:11:06 -0700 Received: from mtkcas09.mediatek.inc (172.21.101.178) by MTKMBS33DR.mediatek.inc (172.27.6.106) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 28 Jun 2019 14:11:00 +0800 Received: from [172.21.77.4] (172.21.77.4) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 28 Jun 2019 14:10:59 +0800 Message-ID: <1561702259.18399.7.camel@mtksdaap41> Subject: Re: [v5 1/7] drm/mediatek: move mipi_dsi_host_register to probe From: CK Hu To: Jitao Shi Date: Fri, 28 Jun 2019 14:10:59 +0800 In-Reply-To: <20190627080116.40264-2-jitao.shi@mediatek.com> References: <20190627080116.40264-1-jitao.shi@mediatek.com> <20190627080116.40264-2-jitao.shi@mediatek.com> X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-12.5.0.1684-8.5.1010-24724.003 X-TM-AS-Result: No-14.037400-8.000000-10 X-TMASE-MatchedRID: xcONGPdDH5qi6/VcDv9f0PZvT2zYoYOwC/ExpXrHizxUvqB5o/Lqc/OP Ra/sN+oGYBSAIERqajwv+9DfuTEff7Ui+RdXr/ZOtbv6jY5MxFxp4xorO9dSmaB7/OvuB9jpd28 7y76rWl0+Qs+JOuQ+IlY7maOxI4yfSiFYFnhBX7pj2Mi9Aq5L042QIlTs17Vzp0b7LIq4ACtfTm YPGZ1ZXQQiZjW65EMBQ9LDjgaivlliWV0DQ85LUho8wYJxWb0Oa01mhnn7t6RXiLrvhpKLfJgM2 5fIhnOfCHezjIJ0pLdIj6eJVvD1DFpf1fzvophNR4PPMO+JjQ78k99z1mnW8f/rgj9ncWz9xF/T +1U99xstA6/Mm2plyirq6U1+7Bo3Zq5LaqHIPFRxoP7A9oFi1mfTym7IX+XOQW6eCaGxKwK8qAh 8pZVO7cW9Hv1VMZJ6kZOl7WKIImrvXOvQVlExsFZ0V5tYhzdWxEHRux+uk8h+ICquNi0WJE/4MB J0dRDUt3l2bABoIbpXxQxn/ClNvtIxpUgjBEIFftwZ3X11IV0= X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--14.037400-8.000000 X-TMASE-Version: SMEX-12.5.0.1684-8.5.1010-24724.003 X-TM-SNTS-SMTP: 4958778A01CFEBB7262B1AF145B46BFD43D375275B178C9456AA22C035062F192000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190627_231113_150266_F26C82EB X-CRM114-Status: GOOD ( 17.93 ) 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: Mark Rutland , devicetree@vger.kernel.org, David Airlie , stonea168@163.com, dri-devel@lists.freedesktop.org, yingjoe.chen@mediatek.com, Ajay Kumar , Vincent Palatin , cawa.cheng@mediatek.com, bibby.hsieh@mediatek.com, Russell King , Thierry Reding , linux-pwm@vger.kernel.org, Sascha Hauer , Pawel Moll , Ian Campbell , Inki Dae , Rob Herring , linux-mediatek@lists.infradead.org, Andy Yan , Matthias Brugger , eddie.huang@mediatek.com, linux-arm-kernel@lists.infradead.org, Rahul Sharma , srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org, Philipp Zabel , Sean Paul Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, Jitao: On Thu, 2019-06-27 at 16:01 +0800, Jitao Shi wrote: > DSI panel driver need attach function which is inculde in > mipi_dsi_host_ops. > > If mipi_dsi_host_register is not in probe, dsi panel will > probe more delay. > > So move the mipi_dsi_host_register to probe from bind. > > Signed-off-by: Jitao Shi > Reviewed-by: CK Hu This version is different than v4, so please remove reviewed-by tag when this patch change. When I see a reviewed-by tag of mine, I would just skip review it again because I assume this patch is the same as previous version. For this version, I give still give it a Reviewed-by: CK Hu > --- > drivers/gpu/drm/mediatek/mtk_dsi.c | 53 +++++++++++++++++------------- > 1 file changed, 31 insertions(+), 22 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c > index b00eb2d2e086..595b3b047c7b 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dsi.c > +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c > @@ -528,7 +528,7 @@ static s32 mtk_dsi_switch_to_cmd_mode(struct mtk_dsi *dsi, u8 irq_flag, u32 t) > > static int mtk_dsi_poweron(struct mtk_dsi *dsi) > { > - struct device *dev = dsi->dev; > + struct device *dev = dsi->->host.dev; > int ret; > u64 pixel_clock, total_bits; > u32 htotal, htotal_bits, bit_per_pixel, overhead_cycles, overhead_bits; > @@ -1045,12 +1045,6 @@ static int mtk_dsi_bind(struct device *dev, struct device *master, void *data) > return ret; > } > > - ret = mipi_dsi_host_register(&dsi->host); > - if (ret < 0) { > - dev_err(dev, "failed to register DSI host: %d\n", ret); > - goto err_ddp_comp_unregister; > - } > - > ret = mtk_dsi_create_conn_enc(drm, dsi); > if (ret) { > DRM_ERROR("Encoder create failed with %d\n", ret); > @@ -1060,8 +1054,6 @@ static int mtk_dsi_bind(struct device *dev, struct device *master, void *data) > return 0; > > err_unregister: > - mipi_dsi_host_unregister(&dsi->host); > -err_ddp_comp_unregister: > mtk_ddp_comp_unregister(drm, &dsi->ddp_comp); > return ret; > } > @@ -1073,7 +1065,6 @@ static void mtk_dsi_unbind(struct device *dev, struct device *master, > struct mtk_dsi *dsi = dev_get_drvdata(dev); > > mtk_dsi_destroy_conn_enc(dsi); > - mipi_dsi_host_unregister(&dsi->host); > mtk_ddp_comp_unregister(drm, &dsi->ddp_comp); > } > > @@ -1097,31 +1088,36 @@ static int mtk_dsi_probe(struct platform_device *pdev) > > dsi->host.ops = &mtk_dsi_ops; > dsi->host.dev = dev; > + ret = mipi_dsi_host_register(&dsi->host); > + if (ret < 0) { > + dev_err(dev, "failed to register DSI host: %d\n", ret); > + return ret; > + } > > ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, > &dsi->panel, &dsi->bridge); > if (ret) > - return ret; > + goto err_unregister_host; > > dsi->engine_clk = devm_clk_get(dev, "engine"); > if (IS_ERR(dsi->engine_clk)) { > ret = PTR_ERR(dsi->engine_clk); > dev_err(dev, "Failed to get engine clock: %d\n", ret); > - return ret; > + goto err_unregister_host; > } > > dsi->digital_clk = devm_clk_get(dev, "digital"); > if (IS_ERR(dsi->digital_clk)) { > ret = PTR_ERR(dsi->digital_clk); > dev_err(dev, "Failed to get digital clock: %d\n", ret); > - return ret; > + goto err_unregister_host; > } > > dsi->hs_clk = devm_clk_get(dev, "hs"); > if (IS_ERR(dsi->hs_clk)) { > ret = PTR_ERR(dsi->hs_clk); > dev_err(dev, "Failed to get hs clock: %d\n", ret); > - return ret; > + goto err_unregister_host; > } > > regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); > @@ -1129,33 +1125,35 @@ static int mtk_dsi_probe(struct platform_device *pdev) > if (IS_ERR(dsi->regs)) { > ret = PTR_ERR(dsi->regs); > dev_err(dev, "Failed to ioremap memory: %d\n", ret); > - return ret; > + goto err_unregister_host; > } > > dsi->phy = devm_phy_get(dev, "dphy"); > if (IS_ERR(dsi->phy)) { > ret = PTR_ERR(dsi->phy); > dev_err(dev, "Failed to get MIPI-DPHY: %d\n", ret); > - return ret; > + goto err_unregister_host; > } > > comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DSI); > if (comp_id < 0) { > dev_err(dev, "Failed to identify by alias: %d\n", comp_id); > - return comp_id; > + ret = comp_id; > + goto err_unregister_host; > } > > ret = mtk_ddp_comp_init(dev, dev->of_node, &dsi->ddp_comp, comp_id, > &mtk_dsi_funcs); > if (ret) { > dev_err(dev, "Failed to initialize component: %d\n", ret); > - return ret; > + goto err_unregister_host; > } > > irq_num = platform_get_irq(pdev, 0); > if (irq_num < 0) { > - dev_err(&pdev->dev, "failed to request dsi irq resource\n"); > - return -EPROBE_DEFER; > + dev_err(&pdev->dev, "failed to get dsi irq_num: %d\n", irq_num); > + ret = irq_num; > + goto err_unregister_host; > } > > irq_set_status_flags(irq_num, IRQ_TYPE_LEVEL_LOW); > @@ -1163,14 +1161,24 @@ static int mtk_dsi_probe(struct platform_device *pdev) > IRQF_TRIGGER_LOW, dev_name(&pdev->dev), dsi); > if (ret) { > dev_err(&pdev->dev, "failed to request mediatek dsi irq\n"); > - return -EPROBE_DEFER; > + goto err_unregister_host; > } > > init_waitqueue_head(&dsi->irq_wait_queue); > > platform_set_drvdata(pdev, dsi); > > - return component_add(&pdev->dev, &mtk_dsi_component_ops); > + ret = component_add(&pdev->dev, &mtk_dsi_component_ops); > + if (ret) { > + dev_err(&pdev->dev, "failed to add component: %d\n", ret); > + goto err_unregister_host; > + } > + > + return 0; > + > +err_unregister_host: > + mipi_dsi_host_unregister(&dsi->host); > + return ret; > } > > static int mtk_dsi_remove(struct platform_device *pdev) > @@ -1179,6 +1187,7 @@ static int mtk_dsi_remove(struct platform_device *pdev) > > mtk_output_dsi_disable(dsi); > component_del(&pdev->dev, &mtk_dsi_component_ops); > + mipi_dsi_host_unregister(&dsi->host); > > return 0; > } _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel