From patchwork Thu Feb 9 19:05:57 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rob Herring (Arm)" X-Patchwork-Id: 9565827 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id F2E98601E9 for ; Fri, 10 Feb 2017 01:42:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E3FB828112 for ; Fri, 10 Feb 2017 01:42:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D83F4284EF; Fri, 10 Feb 2017 01:42:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.7 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RCVD_IN_SORBS_SPAM autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9066128112 for ; Fri, 10 Feb 2017 01:42:16 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7C4BE6EB6A; Fri, 10 Feb 2017 01:41:23 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-ot0-f195.google.com (mail-ot0-f195.google.com [74.125.82.195]) by gabe.freedesktop.org (Postfix) with ESMTPS id C72F76EB91 for ; Thu, 9 Feb 2017 19:06:12 +0000 (UTC) Received: by mail-ot0-f195.google.com with SMTP id f9so1365692otd.0 for ; Thu, 09 Feb 2017 11:06:12 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=qQltK3L6tYbzPh8N9QiS3jwegQK/kaUvdj7xJUXeXTI=; b=Ap8BQiUwvA4RAsBaOMtndSH2SA7mKcYLTSJxvrmHBBSw2moGYVgzOD09wrCylYfpI5 c4Y7kSN6BU0/3SokC2AvkSAl7L/t/jndNZR8j6T6NE6p6Cwo3P0Tw+PN+mPIdvPrVtXR +weCIFfNhjbk7vcSKE5f9I0mHjxKf8hnxHX5NHFgLZK/tTlN2FIwGOJoeJYs9+So5juA NdLumWdAX9sbRUWyiRphtSRvcx8tPw3eLrGVt3MCM1R5Ycvh4FcHKFyQBQhFT+ss7kiU 9gJSaQfo8HnhX2penfPUdahRwoR4vOp3XX89XIAlAhgAycy+3zfcH4ig88KyvXslPSQi lHEA== X-Gm-Message-State: AMke39nQUz3/Gq1Y2qSvcbNnMEZIwYaxLfbplb+snM7PeTLSGW7Tt9I/9I+o0nnioVHw0A== X-Received: by 10.157.19.117 with SMTP id q50mr2497209otq.54.1486667171774; Thu, 09 Feb 2017 11:06:11 -0800 (PST) Received: from rob-hp-laptop.herring.priv (66-90-148-125.dyn.grandenetworks.net. [66.90.148.125]) by smtp.googlemail.com with ESMTPSA id s11sm6316209oia.15.2017.02.09.11.06.09 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 09 Feb 2017 11:06:11 -0800 (PST) From: Rob Herring To: David Airlie , Daniel Vetter , Sean Paul Subject: [PATCH v2 5/6] drm: convert drivers to use drm_of_find_panel_or_bridge Date: Thu, 9 Feb 2017 13:05:57 -0600 Message-Id: <20170209190558.4784-6-robh@kernel.org> X-Mailer: git-send-email 2.10.1 In-Reply-To: <20170209190558.4784-1-robh@kernel.org> References: <20170209190558.4784-1-robh@kernel.org> X-Mailman-Approved-At: Fri, 10 Feb 2017 01:41:18 +0000 Cc: Neil Armstrong , Liviu Dudau , dri-devel@lists.freedesktop.org, Tomi Valkeinen , Frank Rowand , Marek Vasut , Kevin Hilman , Chen-Yu Tsai , Krzysztof Kozlowski , Xinliang Liu , Javier Martinez Canillas , Xinwei Kong , Kukjin Kim , Mali DP Maintainers , devicetree@vger.kernel.org, Chen Feng , Jyri Sarha , Carlo Caione , Russell King , Matthias Brugger , Alison Wang , Jingoo Han , Seung-Woo Kim , linux-kernel@vger.kernel.org, Kyungmin Park , Rongrong Zou , Maxime Ripard X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Similar to the previous commit, convert drivers open coding OF graph parsing to use drm_of_find_panel_or_bridge instead. This changes some error messages to debug messages (in the graph core). Graph connections are often "no connects" depending on the particular board, so we want to avoid spurious messages. Plus the kernel is not a DT validator. Signed-off-by: Rob Herring Reviewed-by: Archit Taneja --- v2: - fix wrong node ptr in imx-ldb - build fixes in kirin and imx drivers drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c | 64 ++++------------- drivers/gpu/drm/bridge/nxp-ptn3460.c | 16 ++--- drivers/gpu/drm/bridge/parade-ps8622.c | 16 ++--- drivers/gpu/drm/bridge/tc358767.c | 27 +------ drivers/gpu/drm/exynos/exynos_dp.c | 35 ++++----- drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | 49 ++++--------- drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c | 27 ++----- drivers/gpu/drm/imx/imx-ldb.c | 27 ++----- drivers/gpu/drm/imx/parallel-display.c | 36 ++-------- drivers/gpu/drm/mediatek/mtk_dsi.c | 23 ++---- drivers/gpu/drm/mxsfb/mxsfb_out.c | 36 ++-------- drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 26 ++----- drivers/gpu/drm/sun4i/sun4i_rgb.c | 13 ++-- drivers/gpu/drm/sun4i/sun4i_tcon.c | 90 ++---------------------- 14 files changed, 88 insertions(+), 397 deletions(-) -- 2.10.1 diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c index 6119b5085501..4614048a4935 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c @@ -22,7 +22,7 @@ #include #include -#include +#include #include "atmel_hlcdc_dc.h" @@ -152,29 +152,11 @@ static const struct drm_connector_funcs atmel_hlcdc_panel_connector_funcs = { .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, }; -static int atmel_hlcdc_check_endpoint(struct drm_device *dev, - const struct of_endpoint *ep) -{ - struct device_node *np; - void *obj; - - np = of_graph_get_remote_port_parent(ep->local_node); - - obj = of_drm_find_panel(np); - if (!obj) - obj = of_drm_find_bridge(np); - - of_node_put(np); - - return obj ? 0 : -EPROBE_DEFER; -} - static int atmel_hlcdc_attach_endpoint(struct drm_device *dev, - const struct of_endpoint *ep) + const struct device_node *np) { struct atmel_hlcdc_dc *dc = dev->dev_private; struct atmel_hlcdc_rgb_output *output; - struct device_node *np; struct drm_panel *panel; struct drm_bridge *bridge; int ret; @@ -195,13 +177,11 @@ static int atmel_hlcdc_attach_endpoint(struct drm_device *dev, output->encoder.possible_crtcs = 0x1; - np = of_graph_get_remote_port_parent(ep->local_node); - - ret = -EPROBE_DEFER; + ret = drm_of_find_panel_or_bridge(np, 0, 0, &panel, &bridge); + if (ret) + return ret; - panel = of_drm_find_panel(np); if (panel) { - of_node_put(np); output->connector.dpms = DRM_MODE_DPMS_OFF; output->connector.polled = DRM_CONNECTOR_POLL_CONNECT; drm_connector_helper_add(&output->connector, @@ -226,9 +206,6 @@ static int atmel_hlcdc_attach_endpoint(struct drm_device *dev, return 0; } - bridge = of_drm_find_bridge(np); - of_node_put(np); - if (bridge) { output->encoder.bridge = bridge; bridge->encoder = &output->encoder; @@ -245,31 +222,14 @@ static int atmel_hlcdc_attach_endpoint(struct drm_device *dev, int atmel_hlcdc_create_outputs(struct drm_device *dev) { - struct device_node *ep_np = NULL; - struct of_endpoint ep; + struct device_node *remote; int ret; - for_each_endpoint_of_node(dev->dev->of_node, ep_np) { - ret = of_graph_parse_endpoint(ep_np, &ep); - if (!ret) - ret = atmel_hlcdc_check_endpoint(dev, &ep); - - if (ret) { - of_node_put(ep_np); - return ret; - } - } - - for_each_endpoint_of_node(dev->dev->of_node, ep_np) { - ret = of_graph_parse_endpoint(ep_np, &ep); - if (!ret) - ret = atmel_hlcdc_attach_endpoint(dev, &ep); - - if (ret) { - of_node_put(ep_np); - return ret; - } - } + remote = of_graph_get_remote_node(dev->dev->of_node, 0, 0); + if (!remote) + return -ENODEV; - return 0; + ret = atmel_hlcdc_attach_endpoint(dev, remote); + of_node_put(remote); + return ret; } diff --git a/drivers/gpu/drm/bridge/nxp-ptn3460.c b/drivers/gpu/drm/bridge/nxp-ptn3460.c index 27f98c518dde..351704390d02 100644 --- a/drivers/gpu/drm/bridge/nxp-ptn3460.c +++ b/drivers/gpu/drm/bridge/nxp-ptn3460.c @@ -20,8 +20,8 @@ #include #include #include -#include +#include #include #include "drm_crtc.h" @@ -292,7 +292,6 @@ static int ptn3460_probe(struct i2c_client *client, { struct device *dev = &client->dev; struct ptn3460_bridge *ptn_bridge; - struct device_node *endpoint, *panel_node; int ret; ptn_bridge = devm_kzalloc(dev, sizeof(*ptn_bridge), GFP_KERNEL); @@ -300,16 +299,9 @@ static int ptn3460_probe(struct i2c_client *client, return -ENOMEM; } - endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); - if (endpoint) { - panel_node = of_graph_get_remote_port_parent(endpoint); - if (panel_node) { - ptn_bridge->panel = of_drm_find_panel(panel_node); - of_node_put(panel_node); - if (!ptn_bridge->panel) - return -EPROBE_DEFER; - } - } + ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, &ptn_bridge->panel, NULL); + if (ret) + return ret; ptn_bridge->client = client; diff --git a/drivers/gpu/drm/bridge/parade-ps8622.c b/drivers/gpu/drm/bridge/parade-ps8622.c index ac8cc5b50d9f..1dcec3b97e67 100644 --- a/drivers/gpu/drm/bridge/parade-ps8622.c +++ b/drivers/gpu/drm/bridge/parade-ps8622.c @@ -22,10 +22,10 @@ #include #include #include -#include #include #include +#include #include #include "drmP.h" @@ -536,7 +536,6 @@ static int ps8622_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; - struct device_node *endpoint, *panel_node; struct ps8622_bridge *ps8622; int ret; @@ -544,16 +543,9 @@ static int ps8622_probe(struct i2c_client *client, if (!ps8622) return -ENOMEM; - endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); - if (endpoint) { - panel_node = of_graph_get_remote_port_parent(endpoint); - if (panel_node) { - ps8622->panel = of_drm_find_panel(panel_node); - of_node_put(panel_node); - if (!ps8622->panel) - return -EPROBE_DEFER; - } - } + ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, &ps8622->panel, NULL); + if (ret) + return ret; ps8622->client = client; diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index de9ffb49e9f6..5c26488e7a2d 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1244,7 +1244,6 @@ static const struct regmap_config tc_regmap_config = { static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; - struct device_node *ep; struct tc_data *tc; int ret; @@ -1255,29 +1254,9 @@ static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id) tc->dev = dev; /* port@2 is the output port */ - ep = of_graph_get_endpoint_by_regs(dev->of_node, 2, -1); - if (ep) { - struct device_node *remote; - - remote = of_graph_get_remote_port_parent(ep); - if (!remote) { - dev_warn(dev, "endpoint %s not connected\n", - ep->full_name); - of_node_put(ep); - return -ENODEV; - } - of_node_put(ep); - tc->panel = of_drm_find_panel(remote); - if (tc->panel) { - dev_dbg(dev, "found panel %s\n", remote->full_name); - } else { - dev_dbg(dev, "waiting for panel %s\n", - remote->full_name); - of_node_put(remote); - return -EPROBE_DEFER; - } - of_node_put(remote); - } + ret = drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &tc->panel, NULL); + if (ret) + return ret; /* Shut down GPIO is optional */ tc->sd_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH); diff --git a/drivers/gpu/drm/exynos/exynos_dp.c b/drivers/gpu/drm/exynos/exynos_dp.c index 528229faffe4..376c941c5189 100644 --- a/drivers/gpu/drm/exynos/exynos_dp.c +++ b/drivers/gpu/drm/exynos/exynos_dp.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include @@ -215,8 +216,11 @@ static const struct component_ops exynos_dp_ops = { static int exynos_dp_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *np = NULL, *endpoint = NULL; + struct device_node *np; struct exynos_dp_device *dp; + struct drm_panel *panel; + struct drm_bridge *bridge; + int ret; dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device), GFP_KERNEL); @@ -240,28 +244,13 @@ static int exynos_dp_probe(struct platform_device *pdev) goto out; } - endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); - if (endpoint) { - np = of_graph_get_remote_port_parent(endpoint); - if (np) { - /* The remote port can be either a panel or a bridge */ - dp->plat_data.panel = of_drm_find_panel(np); - if (!dp->plat_data.panel) { - dp->ptn_bridge = of_drm_find_bridge(np); - if (!dp->ptn_bridge) { - of_node_put(np); - return -EPROBE_DEFER; - } - } - of_node_put(np); - } else { - DRM_ERROR("no remote endpoint device node found.\n"); - return -EINVAL; - } - } else { - DRM_ERROR("no port endpoint subnode found.\n"); - return -EINVAL; - } + ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, &panel, &bridge); + if (ret) + return ret; + + /* The remote port can be either a panel or a bridge */ + dp->plat_data.panel = panel; + dp->ptn_bridge = bridge; out: return component_add(&pdev->dev, &exynos_dp_ops); diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c index 05a8ee106879..3cae7dd75834 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include "fsl_dcu_drm_drv.h" @@ -141,35 +142,11 @@ static int fsl_dcu_attach_panel(struct fsl_dcu_drm_device *fsl_dev, return ret; } -static int fsl_dcu_attach_endpoint(struct fsl_dcu_drm_device *fsl_dev, - const struct of_endpoint *ep) -{ - struct drm_bridge *bridge; - struct device_node *np; - - np = of_graph_get_remote_port_parent(ep->local_node); - - fsl_dev->connector.panel = of_drm_find_panel(np); - if (fsl_dev->connector.panel) { - of_node_put(np); - return fsl_dcu_attach_panel(fsl_dev, fsl_dev->connector.panel); - } - - bridge = of_drm_find_bridge(np); - of_node_put(np); - if (!bridge) - return -ENODEV; - - fsl_dev->encoder.bridge = bridge; - bridge->encoder = &fsl_dev->encoder; - - return drm_bridge_attach(fsl_dev->drm, bridge); -} - int fsl_dcu_create_outputs(struct fsl_dcu_drm_device *fsl_dev) { - struct of_endpoint ep; - struct device_node *ep_node, *panel_node; + struct device_node *panel_node; + struct drm_bridge *bridge; + struct drm_panel *panel; int ret; /* This is for backward compatibility */ @@ -182,14 +159,16 @@ int fsl_dcu_create_outputs(struct fsl_dcu_drm_device *fsl_dev) return fsl_dcu_attach_panel(fsl_dev, fsl_dev->connector.panel); } - ep_node = of_graph_get_next_endpoint(fsl_dev->np, NULL); - if (!ep_node) - return -ENODEV; - - ret = of_graph_parse_endpoint(ep_node, &ep); - of_node_put(ep_node); + ret = drm_of_find_panel_or_bridge(fsl_dev->np, 0, 0, &panel, &bridge); if (ret) - return -ENODEV; + return ret; - return fsl_dcu_attach_endpoint(fsl_dev, &ep); + if (panel) { + fsl_dev->connector.panel = panel; + return fsl_dcu_attach_panel(fsl_dev, panel); + } + + fsl_dev->encoder.bridge = bridge; + bridge->encoder = &fsl_dev->encoder; + return drm_bridge_attach(fsl_dev->drm, bridge); } diff --git a/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c b/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c index 998452ad0fcb..0f23e2c55862 100644 --- a/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c +++ b/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c @@ -17,7 +17,6 @@ #include #include -#include #include #include @@ -757,34 +756,16 @@ static int dsi_parse_dt(struct platform_device *pdev, struct dw_dsi *dsi) { struct dsi_hw_ctx *ctx = dsi->ctx; struct device_node *np = pdev->dev.of_node; - struct device_node *endpoint, *bridge_node; - struct drm_bridge *bridge; struct resource *res; + int ret; /* * Get the endpoint node. In our case, dsi has one output port1 * to which the external HDMI bridge is connected. */ - endpoint = of_graph_get_endpoint_by_regs(np, 1, -1); - if (!endpoint) { - DRM_ERROR("no valid endpoint node\n"); - return -ENODEV; - } - of_node_put(endpoint); - - bridge_node = of_graph_get_remote_port_parent(endpoint); - if (!bridge_node) { - DRM_ERROR("no valid bridge node\n"); - return -ENODEV; - } - of_node_put(bridge_node); - - bridge = of_drm_find_bridge(bridge_node); - if (!bridge) { - DRM_INFO("wait for external HDMI bridge driver.\n"); - return -EPROBE_DEFER; - } - dsi->bridge = bridge; + ret = drm_of_find_panel_or_bridge(np, 0, 0, NULL, &dsi->bridge); + if (ret) + return ret; ctx->pclk = devm_clk_get(&pdev->dev, "pclk"); if (IS_ERR(ctx->pclk)) { diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c index 516d06490465..506d5c1d1263 100644 --- a/drivers/gpu/drm/imx/imx-ldb.c +++ b/drivers/gpu/drm/imx/imx-ldb.c @@ -649,7 +649,6 @@ static int imx_ldb_bind(struct device *dev, struct device *master, void *data) for_each_child_of_node(np, child) { struct imx_ldb_channel *channel; - struct device_node *ep; int bus_format; ret = of_property_read_u32(child, "reg", &i); @@ -673,27 +672,11 @@ static int imx_ldb_bind(struct device *dev, struct device *master, void *data) * The output port is port@4 with an external 4-port mux or * port@2 with the internal 2-port mux. */ - ep = of_graph_get_endpoint_by_regs(child, - imx_ldb->lvds_mux ? 4 : 2, - -1); - if (ep) { - struct device_node *remote; - - remote = of_graph_get_remote_port_parent(ep); - of_node_put(ep); - if (remote) { - channel->panel = of_drm_find_panel(remote); - channel->bridge = of_drm_find_bridge(remote); - } else - return -EPROBE_DEFER; - of_node_put(remote); - - if (!channel->panel && !channel->bridge) { - dev_err(dev, "panel/bridge not found: %s\n", - remote->full_name); - return -EPROBE_DEFER; - } - } + ret = drm_of_find_panel_or_bridge(child, + imx_ldb->lvds_mux ? 4 : 2, 0, + &channel->panel, &channel->bridge); + if (ret) + return ret; /* panel ddc only if there is no bridge */ if (!channel->bridge) { diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c index 8582a83c0d9b..92336f38c55e 100644 --- a/drivers/gpu/drm/imx/parallel-display.c +++ b/drivers/gpu/drm/imx/parallel-display.c @@ -19,10 +19,10 @@ #include #include #include +#include #include #include #include