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=-8.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT 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 EE271C48BD6 for ; Thu, 27 Jun 2019 08:01:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B924120828 for ; Thu, 27 Jun 2019 08:01:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726576AbfF0IBj (ORCPT ); Thu, 27 Jun 2019 04:01:39 -0400 Received: from mailgw02.mediatek.com ([1.203.163.81]:13803 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726455AbfF0IBh (ORCPT ); Thu, 27 Jun 2019 04:01:37 -0400 X-UUID: e832c994c4974a4cabdf1e440b89444e-20190627 X-UUID: e832c994c4974a4cabdf1e440b89444e-20190627 Received: from mtkcas34.mediatek.inc [(172.27.4.253)] by mailgw02.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 393272168; Thu, 27 Jun 2019 16:01:22 +0800 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by MTKMBS33DR.mediatek.inc (172.27.6.106) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 27 Jun 2019 16:01:20 +0800 Received: from mszsdclx1018.gcn.mediatek.inc (172.27.4.253) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Thu, 27 Jun 2019 16:01:19 +0800 From: Jitao Shi To: Rob Herring , Pawel Moll , "Mark Rutland" , Ian Campbell , , David Airlie , "Matthias Brugger" CC: Jitao Shi , Thierry Reding , Ajay Kumar , Inki Dae , "Rahul Sharma" , Sean Paul , "Vincent Palatin" , Andy Yan , "Philipp Zabel" , Russell King , , , , , , , "Sascha Hauer" , , , , , , Subject: [v5 1/7] drm/mediatek: move mipi_dsi_host_register to probe Date: Thu, 27 Jun 2019 16:01:09 +0800 Message-ID: <20190627080116.40264-2-jitao.shi@mediatek.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190627080116.40264-1-jitao.shi@mediatek.com> References: <20190627080116.40264-1-jitao.shi@mediatek.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-TM-AS-Product-Ver: SMEX-12.5.0.1684-8.5.1010-24720.003 X-TM-AS-Result: No-7.110300-8.000000-10 X-TMASE-MatchedRID: usamOvt1jXSiXdgrlKZp5/3HILfxLV/93V4UShoTXad0FoS1aixTNT7s j+R9FMn6NBAJbldcKgW8sMFSGTsyAdpsFVyqUNwXQ4srjeRbxTZLXPA26IG0hN9RlPzeVuQQhqJ xi9IzezJKBVbsqgRiwDEua3P66jtsdpvo/nKASz4XK/dRaOWlvaDzzrtsjCZTTFmQ5D//V2mPKV zaGaT8FsmfTf3tAqfJu1ODjDi7RA9wWpD0snGz80LhYg/sa1gs3YSaHlnZL83mTInKzpSFSUjYb j4tH6TbMOHyrjcZo6KFhnNm59A/TOG1W8jesiDJfzgVmnL/olV9LQinZ4QefPcjNeVeWlqY+gtH j7OwNO0UQCQtpNwWelQr3pKYQmVmvbaUI5qOTyRMrQLzfNR1jflwnnsh3VrI X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--7.110300-8.000000 X-TMASE-Version: SMEX-12.5.0.1684-8.5.1010-24720.003 X-TM-SNTS-SMTP: 09CA99ED57FD0182758A7D3C7F0FFF515B248FC850EDADDFAB1B90369B3BD8722000:8 X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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; } -- 2.21.0