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Mon, 17 Jun 2024 00:58:46 +0000 Message-ID: <87tthss7ui.wl-kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto Subject: [PATCH v4 resend 1/9] gpu: drm: replace of_graph_get_next_endpoint() To: "Lad Prabhakar" , Alexander Shishkin , Alexandre Belloni , Claudiu Beznea , Daniel Vetter , David Airlie , Eugen Hristev , Greg Kroah-Hartman , Helge Deller , Laurent Pinchart , Maarten Lankhorst , Mauro Carvalho Chehab , Maxime Ripard , Michal Simek , Nicolas Ferre , Rob Herring , Suzuki K Poulose , Thomas Zimmermann , Tomi Valkeinen , coresight@lists.linaro.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-fbdev@vger.kernel.org, linux-media@vger.kernel.org, linux-omap@vger.kernel.org, linux-staging@lists.linux.dev, Sakari Ailus , Hans Verkuil In-Reply-To: <87v828s7v0.wl-kuninori.morimoto.gx@renesas.com> References: <87v828s7v0.wl-kuninori.morimoto.gx@renesas.com> Date: Mon, 17 Jun 2024 00:58:46 +0000 X-ClientProxiedBy: TY2PR02CA0002.apcprd02.prod.outlook.com (2603:1096:404:56::14) To TYCPR01MB10914.jpnprd01.prod.outlook.com (2603:1096:400:3a9::11) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TYCPR01MB10914:EE_|TYWPR01MB8560:EE_ X-MS-Office365-Filtering-Correlation-Id: 21ac385c-b5c7-4787-60af-08dc8e68a469 X-LD-Processed: 53d82571-da19-47e4-9cb4-625a166a4a2a,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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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/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 177b600895d3c..b6b2cade69aeb 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 4618c892cdd65..e10e469aa7a6c 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 4f8f3172379e3..8c29b719ea626 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);