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Mon, 25 Mar 2024 02:57:19 +0000 Message-ID: <875xxb6msy.wl-kuninori.morimoto.gx@renesas.com> To: =?iso-8859-1?q?=22Uwe_Kleine-K=F6nig=22?= , Alexey Brodkin , Daniel Vetter , David Airlie , Florian Fainelli , Helge Deller , Maarten Lankhorst , Maxime Ripard , Neil Armstrong , Rob Herring , Thomas Zimmermann , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-fbdev@vger.kernel.org, linux-omap@vger.kernel.org, linux-rpi-kernel@lists.infradead.org In-Reply-To: <877chr6mu5.wl-kuninori.morimoto.gx@renesas.com> References: <877chr6mu5.wl-kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto Subject: [PATCH 1/2] gpu: drm: replace of_graph_get_next_endpoint() Date: Mon, 25 Mar 2024 02:57:18 +0000 X-ClientProxiedBy: TYCP286CA0266.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:455::19) To TYCPR01MB10914.jpnprd01.prod.outlook.com (2603:1096:400:3a9::11) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TYCPR01MB10914:EE_|OSZPR01MB6831:EE_ X-MS-Office365-Filtering-Correlation-Id: 054b0ca4-401d-409c-b896-08dc4c77492e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: renesas.com X-MS-Exchange-CrossTenant-Network-Message-Id: 054b0ca4-401d-409c-b896-08dc4c77492e X-MS-Exchange-CrossTenant-AuthSource: TYCPR01MB10914.jpnprd01.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Mar 2024 02:57:19.3266 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 53d82571-da19-47e4-9cb4-625a166a4a2a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: En9w4O26aq8dW3pPzfMOBVvQdzRhRbEI4wJNW4iN3wCUn1vy04G+ACntNqLvRlFnZhgA3vDTdKWzhgIkfORLSgi/SQat85dK/WfEBIgLxwUadR9eOCXo8MQakIvoi++q X-MS-Exchange-Transport-CrossTenantHeadersStamped: OSZPR01MB6831 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From DT point of view, in general, drivers should be asking for a specific port number because their function is fixed in the binding. of_graph_get_next_endpoint() doesn't match to this concept. Simply replace - of_graph_get_next_endpoint(xxx, NULL); + of_graph_get_endpoint_by_regs(xxx, 0, -1); Link: https://lore.kernel.org/r/20240202174941.GA310089-robh@kernel.org Signed-off-by: Kuninori Morimoto Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/drm_of.c | 4 +++- drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c | 2 +- drivers/gpu/drm/tiny/arcpgu.c | 2 +- 3 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index 177b600895d3..b6b2cade69ae 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -504,6 +504,8 @@ EXPORT_SYMBOL_GPL(drm_of_get_data_lanes_count_ep); * Gets parent DSI bus for a DSI device controlled through a bus other * than MIPI-DCS (SPI, I2C, etc.) using the Device Tree. * + * This function assumes that the device's port@0 is the DSI input. + * * Returns pointer to mipi_dsi_host if successful, -EINVAL if the * request is unsupported, -EPROBE_DEFER if the DSI host is found but * not available, or -ENODEV otherwise. @@ -516,7 +518,7 @@ struct mipi_dsi_host *drm_of_get_dsi_bus(struct device *dev) /* * Get first endpoint child from device. */ - endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); + endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1); if (!endpoint) return ERR_PTR(-ENODEV); diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c index 4618c892cdd6..e10e469aa7a6 100644 --- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c +++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c @@ -400,7 +400,7 @@ static int rpi_touchscreen_probe(struct i2c_client *i2c) rpi_touchscreen_i2c_write(ts, REG_POWERON, 0); /* Look up the DSI host. It needs to probe before we do. */ - endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); + endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1); if (!endpoint) return -ENODEV; diff --git a/drivers/gpu/drm/tiny/arcpgu.c b/drivers/gpu/drm/tiny/arcpgu.c index 4f8f3172379e..8c29b719ea62 100644 --- a/drivers/gpu/drm/tiny/arcpgu.c +++ b/drivers/gpu/drm/tiny/arcpgu.c @@ -288,7 +288,7 @@ static int arcpgu_load(struct arcpgu_drm_private *arcpgu) * There is only one output port inside each device. It is linked with * encoder endpoint. */ - endpoint_node = of_graph_get_next_endpoint(pdev->dev.of_node, NULL); + endpoint_node = of_graph_get_endpoint_by_regs(pdev->dev.of_node, 0, -1); if (endpoint_node) { encoder_node = of_graph_get_remote_port_parent(endpoint_node); of_node_put(endpoint_node); From patchwork Mon Mar 25 02:57:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuninori Morimoto X-Patchwork-Id: 13601092 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9DB3AC47DD9 for ; Mon, 25 Mar 2024 02:57:33 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1876610E1DC; 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Simply replace - of_graph_get_next_endpoint(xxx, NULL); + of_graph_get_endpoint_by_regs(xxx, 0, -1); Link: https://lore.kernel.org/r/20240202174941.GA310089-robh@kernel.org Signed-off-by: Kuninori Morimoto Reviewed-by: Laurent Pinchart --- drivers/video/fbdev/omap2/omapfb/dss/dsi.c | 3 ++- drivers/video/fbdev/omap2/omapfb/dss/dss-of.c | 20 +------------------ drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c | 3 ++- drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c | 3 ++- drivers/video/fbdev/omap2/omapfb/dss/venc.c | 3 ++- drivers/video/fbdev/pxafb.c | 2 +- include/video/omapfb_dss.h | 3 --- 7 files changed, 10 insertions(+), 27 deletions(-) diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c index b7eb17a16ec4..1f13bcf73da5 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include @@ -5079,7 +5080,7 @@ static int dsi_probe_of(struct platform_device *pdev) struct device_node *ep; struct omap_dsi_pin_config pin_cfg; - ep = omapdss_of_get_first_endpoint(node); + ep = of_graph_get_endpoint_by_regs(node, 0, -1); if (!ep) return 0; diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c index 0282d4eef139..14965a3fd05b 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c @@ -130,24 +130,6 @@ static struct device_node *omapdss_of_get_remote_port(const struct device_node * return np; } -struct device_node * -omapdss_of_get_first_endpoint(const struct device_node *parent) -{ - struct device_node *port, *ep; - - port = omapdss_of_get_next_port(parent, NULL); - - if (!port) - return NULL; - - ep = omapdss_of_get_next_endpoint(port, NULL); - - of_node_put(port); - - return ep; -} -EXPORT_SYMBOL_GPL(omapdss_of_get_first_endpoint); - struct omap_dss_device * omapdss_of_find_source_for_first_ep(struct device_node *node) { @@ -155,7 +137,7 @@ omapdss_of_find_source_for_first_ep(struct device_node *node) struct device_node *src_port; struct omap_dss_device *src; - ep = omapdss_of_get_first_endpoint(node); + ep = of_graph_get_endpoint_by_regs(node, 0, -1); if (!ep) return ERR_PTR(-EINVAL); diff --git a/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c b/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c index f05b4e35a842..8f407ec134dc 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include