From patchwork Tue Feb 23 03:00:28 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xinliang Liu X-Patchwork-Id: 62661 Delivered-To: patch@linaro.org Received: by 10.112.43.199 with SMTP id y7csp1599345lbl; Mon, 22 Feb 2016 19:03:48 -0800 (PST) X-Received: by 10.66.140.14 with SMTP id rc14mr43066554pab.65.1456196626599; Mon, 22 Feb 2016 19:03:46 -0800 (PST) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 5si43927228pfs.118.2016.02.22.19.03.46; Mon, 22 Feb 2016 19:03:46 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dkim=neutral (body hash did not verify) header.i=@linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932423AbcBWDDp (ORCPT + 6 others); Mon, 22 Feb 2016 22:03:45 -0500 Received: from mail-pa0-f41.google.com ([209.85.220.41]:35751 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932353AbcBWDDo (ORCPT ); Mon, 22 Feb 2016 22:03:44 -0500 Received: by mail-pa0-f41.google.com with SMTP id ho8so104561368pac.2 for ; Mon, 22 Feb 2016 19:03:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=j9WiuHOFlputTv91IcnSmvCNhA7/RZSIM0s+P/2Exz8=; b=KmvchkAh3RCS0f50fAC36HUBxI81BKVCCrEefbjS0c4365nxgHcY4Jz3KgqGhQdW3p 9swFaaZOKekhCCrm6qdLK/OqA5zdcBR+z8tyPzXwUd+ioiVd8uanAryb0Rx9m7fbaZBV jAnJ5DwT/3IHCvFHabsNjE60MfBPS0RZ4bNWU= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=j9WiuHOFlputTv91IcnSmvCNhA7/RZSIM0s+P/2Exz8=; b=HrAJYeO5tR0f7sjkoRWYioGS5WApNjllT1ydsG4WA2/uwwEWZaTikV/7rOe2SjbJUb 9VmhECYB8x1wClke0ziHZitwrorgYfOyjD2fSWddXh3NG/b7jwIJdtgvjH0hrngkNhL7 qDDt2CE+MDqp4TgOjFHGTjDJxXeOdA6XrmvUw0YVq9muj/t0vsB3PsMBbvYW07RO4ovI s6fqnMQKfe7gDoL1FYg5f5luh988kC43In39BBbZA+ytPB9QGUHakuBv3aZBmvpPmsg4 6ewOFoIKGZxVPG9gyC6xa+EQGDaJrNspdZAhdtMPQn1F8hvu7wvy07xsexmbNq6U8FZT v9TA== X-Gm-Message-State: AG10YORgATXEwbclLXagxDWNooBWmtH7kWMdpAI9bT/i99WSb0T6nIwyEnlHJT4wl4F70r6W X-Received: by 10.66.142.226 with SMTP id rz2mr42789372pab.104.1456196624419; Mon, 22 Feb 2016 19:03:44 -0800 (PST) Received: from localhost.localdomain ([116.25.56.39]) by smtp.gmail.com with ESMTPSA id l24sm39800554pfb.73.2016.02.22.19.03.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 22 Feb 2016 19:03:43 -0800 (PST) From: Xinliang Liu To: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, daniel@ffwll.ch, robh@kernel.org, daniel@fooishbar.org, architt@codeaurora.org, airlied@linux.ie, corbet@lwn.net, catalin.marinas@arm.com, will.deacon@arm.com, emil.l.velikov@gmail.com Cc: linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxarm@huawei.com, andy.green@linaro.org, haojian.zhuang@linaro.org, liguozhu@hisilicon.com, xuwei5@hisilicon.com, w.f@huawei.com, puck.chen@hisilicon.com, bintian.wang@huawei.com, benjamin.gaignard@linaro.org, xuyiping@hisilicon.com, kong.kongxinwei@hisilicon.com, zourongrong@huawei.com, lijianhua@huawei.com, sumit.semwal@linaro.org, guodong.xu@linaro.org, Xinliang Liu Subject: [PATCH v5 08/11] drm/hisilicon: Add designware dsi host driver Date: Tue, 23 Feb 2016 11:00:28 +0800 Message-Id: <1456196431-19923-9-git-send-email-xinliang.liu@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1456196431-19923-1-git-send-email-xinliang.liu@linaro.org> References: <1456196431-19923-1-git-send-email-xinliang.liu@linaro.org> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add DesignWare dsi host driver for hi6220 SoC. v5: None. v4: None. v3: None. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu --- drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c | 50 ++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c b/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c index 7c9423537b71..2837af01e935 100644 --- a/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c +++ b/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c @@ -79,6 +79,7 @@ struct dsi_hw_ctx { struct dw_dsi { struct drm_encoder encoder; + struct mipi_dsi_host host; struct drm_display_mode cur_mode; struct dsi_hw_ctx *ctx; struct mipi_phy_params phy; @@ -642,6 +643,51 @@ static int dw_drm_encoder_init(struct device *dev, return 0; } +static int dsi_host_attach(struct mipi_dsi_host *host, + struct mipi_dsi_device *mdsi) +{ + struct dw_dsi *dsi = host_to_dsi(host); + + if (mdsi->lanes < 1 || mdsi->lanes > 4) { + DRM_ERROR("dsi device params invalid\n"); + return -EINVAL; + } + + dsi->lanes = mdsi->lanes; + dsi->format = mdsi->format; + dsi->mode_flags = mdsi->mode_flags; + + return 0; +} + +static int dsi_host_detach(struct mipi_dsi_host *host, + struct mipi_dsi_device *mdsi) +{ + /* do nothing */ + return 0; +} + +static const struct mipi_dsi_host_ops dsi_host_ops = { + .attach = dsi_host_attach, + .detach = dsi_host_detach, +}; + +static int dsi_host_init(struct device *dev, struct dw_dsi *dsi) +{ + struct mipi_dsi_host *host = &dsi->host; + int ret; + + host->dev = dev; + host->ops = &dsi_host_ops; + ret = mipi_dsi_host_register(host); + if (ret) { + DRM_ERROR("failed to register dsi host\n"); + return ret; + } + + return 0; +} + static int dsi_bind(struct device *dev, struct device *master, void *data) { struct dsi_data *ddata = dev_get_drvdata(dev); @@ -653,6 +699,10 @@ static int dsi_bind(struct device *dev, struct device *master, void *data) if (ret) return ret; + ret = dsi_host_init(dev, dsi); + if (ret) + return ret; + return 0; }