From patchwork Fri Dec 13 18:10:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 11291637 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1BE7C109A for ; Fri, 13 Dec 2019 22:23:31 +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 F2A1920706 for ; Fri, 13 Dec 2019 22:23:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ZAdKX+pm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F2A1920706 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.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: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=a3cfvcCA7TT7WxUF3HH2/QRhLN2GuYkvMO3VBgAmWwk=; b=ZAdKX+pmbNeGrT sC84dHjhZAggQvDYVeN8xBKM75hwQ1Axn0Xl3/mg7lhLEirNACAZd1onDKigbq7BEIOi4XYVR1uzZ yBiIbYvR1LnHxBAz3KekQZPsP1wYAH+g9jK9ZF8uXsy/Um5U3y7lXWm//1cYgB/fslX3LB8BauLPW k1noZ6V+r9+C2NuER4GXub1jtTI5FXwV0lZWrVCuTDf8smU7rzDYaPEKl7hpGtjIdkeb7iqOil8r2 IJehYsYP5Y5FnEB8e9bdDDkgD9ifpL52CCz0dlMlDPz13G3cYaBIviFnc7YGDeNdPY6HRcrUlLNog /G5ib2wHU/tyJ8VKbwVQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ifpRi-0002Xj-NU; Fri, 13 Dec 2019 18:13:46 +0000 Received: from relay12.mail.gandi.net ([217.70.178.232]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ifpPB-0008Qm-Sh; Fri, 13 Dec 2019 18:11:11 +0000 Received: from localhost.localdomain (unknown [91.224.148.103]) (Authenticated sender: miquel.raynal@bootlin.com) by relay12.mail.gandi.net (Postfix) with ESMTPSA id 628F8200007; Fri, 13 Dec 2019 18:11:06 +0000 (UTC) From: Miquel Raynal To: Rob Herring , Mark Rutland , , Heiko Stuebner , , Daniel Vetter , David Airlie , Sandy Huang Subject: [PATCH 06/12] drm/rockchip: lvds: Create an RK3288 specific probe function Date: Fri, 13 Dec 2019 19:10:45 +0100 Message-Id: <20191213181051.25983-7-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191213181051.25983-1-miquel.raynal@bootlin.com> References: <20191213181051.25983-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191213_101110_223467_DBA309B2 X-CRM114-Status: GOOD ( 14.28 ) X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [217.70.178.232 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, Maxime Chevallier , Paul Kocialkowski , Thomas Petazzoni , Miquel Raynal , linux-arm-kernel@lists.infradead.org Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org The probe function is highly tighten to the RK3288 specificities, move all specific bits into an "rk3288_probe" function, also part of the platform data. The goal is to ease the addition of new flavors of Rockchip LVDS IPs. Signed-off-by: Miquel Raynal --- drivers/gpu/drm/rockchip/rockchip_lvds.c | 94 ++++++++++++++---------- 1 file changed, 57 insertions(+), 37 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.c b/drivers/gpu/drm/rockchip/rockchip_lvds.c index 262fec61eb78..0d2902b0d990 100644 --- a/drivers/gpu/drm/rockchip/rockchip_lvds.c +++ b/drivers/gpu/drm/rockchip/rockchip_lvds.c @@ -31,6 +31,8 @@ #define DISPLAY_OUTPUT_LVDS 1 #define DISPLAY_OUTPUT_DUAL_LVDS 2 +struct rockchip_lvds; + #define connector_to_lvds(c) \ container_of(c, struct rockchip_lvds, connector) @@ -39,9 +41,11 @@ /** * rockchip_lvds_soc_data - rockchip lvds Soc private data + * @probe: LVDS platform probe function * @helper_funcs: LVDS connector helper functions */ struct rockchip_lvds_soc_data { + int (*probe)(struct platform_device *pdev, struct rockchip_lvds *lvds); const struct drm_encoder_helper_funcs *helper_funcs; }; @@ -303,6 +307,52 @@ static void rk3288_lvds_encoder_disable(struct drm_encoder *encoder) drm_panel_unprepare(lvds->panel); } +static int rk3288_lvds_probe(struct platform_device *pdev, + struct rockchip_lvds *lvds) +{ + struct resource *res; + int ret; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + lvds->regs = devm_ioremap_resource(lvds->dev, res); + if (IS_ERR(lvds->regs)) + return PTR_ERR(lvds->regs); + + lvds->pclk = devm_clk_get(lvds->dev, "pclk_lvds"); + if (IS_ERR(lvds->pclk)) { + DRM_DEV_ERROR(lvds->dev, "could not get pclk_lvds\n"); + return PTR_ERR(lvds->pclk); + } + + lvds->pins = devm_kzalloc(lvds->dev, sizeof(*lvds->pins), + GFP_KERNEL); + if (!lvds->pins) + return -ENOMEM; + + lvds->pins->p = devm_pinctrl_get(lvds->dev); + if (IS_ERR(lvds->pins->p)) { + DRM_DEV_ERROR(lvds->dev, "no pinctrl handle\n"); + devm_kfree(lvds->dev, lvds->pins); + lvds->pins = NULL; + } else { + lvds->pins->default_state = + pinctrl_lookup_state(lvds->pins->p, "lcdc"); + if (IS_ERR(lvds->pins->default_state)) { + DRM_DEV_ERROR(lvds->dev, "no default pinctrl state\n"); + devm_kfree(lvds->dev, lvds->pins); + lvds->pins = NULL; + } + } + + ret = clk_prepare(lvds->pclk); + if (ret < 0) { + DRM_DEV_ERROR(lvds->dev, "failed to prepare pclk_lvds\n"); + return ret; + } + + return 0; +} + static const struct drm_encoder_helper_funcs rk3288_lvds_encoder_helper_funcs = { .enable = rk3288_lvds_encoder_enable, @@ -315,6 +365,7 @@ static const struct drm_encoder_funcs rockchip_lvds_encoder_funcs = { }; static const struct rockchip_lvds_soc_data rk3288_lvds_data = { + .probe = rk3288_lvds_probe, .helper_funcs = &rk3288_lvds_encoder_helper_funcs, }; @@ -488,7 +539,6 @@ static int rockchip_lvds_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct rockchip_lvds *lvds; const struct of_device_id *match; - struct resource *res; int ret; if (!dev->of_node) @@ -504,37 +554,6 @@ static int rockchip_lvds_probe(struct platform_device *pdev) return -ENODEV; lvds->soc_data = match->data; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - lvds->regs = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(lvds->regs)) - return PTR_ERR(lvds->regs); - - lvds->pclk = devm_clk_get(&pdev->dev, "pclk_lvds"); - if (IS_ERR(lvds->pclk)) { - DRM_DEV_ERROR(dev, "could not get pclk_lvds\n"); - return PTR_ERR(lvds->pclk); - } - - lvds->pins = devm_kzalloc(lvds->dev, sizeof(*lvds->pins), - GFP_KERNEL); - if (!lvds->pins) - return -ENOMEM; - - lvds->pins->p = devm_pinctrl_get(lvds->dev); - if (IS_ERR(lvds->pins->p)) { - DRM_DEV_ERROR(dev, "no pinctrl handle\n"); - devm_kfree(lvds->dev, lvds->pins); - lvds->pins = NULL; - } else { - lvds->pins->default_state = - pinctrl_lookup_state(lvds->pins->p, "lcdc"); - if (IS_ERR(lvds->pins->default_state)) { - DRM_DEV_ERROR(dev, "no default pinctrl state\n"); - devm_kfree(lvds->dev, lvds->pins); - lvds->pins = NULL; - } - } - lvds->grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,grf"); if (IS_ERR(lvds->grf)) { @@ -542,13 +561,14 @@ static int rockchip_lvds_probe(struct platform_device *pdev) return PTR_ERR(lvds->grf); } + ret = lvds->soc_data->probe(pdev, lvds); + if (ret) { + DRM_DEV_ERROR(dev, "Platform initialization failed\n"); + return ret; + } + dev_set_drvdata(dev, lvds); - ret = clk_prepare(lvds->pclk); - if (ret < 0) { - DRM_DEV_ERROR(dev, "failed to prepare pclk_lvds\n"); - return ret; - } ret = component_add(&pdev->dev, &rockchip_lvds_component_ops); if (ret < 0) { DRM_DEV_ERROR(dev, "failed to add component\n");