Commit 304e6be6 authored by Philipp Zabel's avatar Philipp Zabel
Browse files

gpu: ipu-v3: Assign of_node of child platform devices to corresponding ports 



The crtc child device driver shouldn't have to modify the of_node of its
platform device in the probe function. Instead, let the IPU core driver
set the of_node when the platform device is created.

Also reorder the client_reg array so the elements are in port id order
(CSIs first, then DIs).

Suggested-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Acked-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 99ae78c3

drivers/gpu/ipu-v3/ipu-common.c

+38 −18
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
#include <linux/irqchip/chained_irq.h>

#include <linux/irqdomain.h>

#include <linux/of_device.h>

#include <linux/of_graph.h>



#include <drm/drm_fourcc.h>
@@ -995,8 +996,23 @@ struct ipu_platform_reg { 
	const char *name;

};



/* These must be in the order of the corresponding device tree port nodes */

static const struct ipu_platform_reg client_reg[] = {

	{

		.pdata = {

			.csi = 0,

			.dma[0] = IPUV3_CHANNEL_CSI0,

			.dma[1] = -EINVAL,

		},

		.name = "imx-ipuv3-camera",

	}, {

		.pdata = {

			.csi = 1,

			.dma[0] = IPUV3_CHANNEL_CSI1,

			.dma[1] = -EINVAL,

		},

		.name = "imx-ipuv3-camera",

	}, {

		.pdata = {

			.di = 0,

			.dc = 5,
@@ -1014,20 +1030,6 @@ static const struct ipu_platform_reg client_reg[] = { 
			.dma[1] = -EINVAL,

		},

		.name = "imx-ipuv3-crtc",

	}, {

		.pdata = {

			.csi = 0,

			.dma[0] = IPUV3_CHANNEL_CSI0,

			.dma[1] = -EINVAL,

		},

		.name = "imx-ipuv3-camera",

	}, {

		.pdata = {

			.csi = 1,

			.dma[0] = IPUV3_CHANNEL_CSI1,

			.dma[1] = -EINVAL,

		},

		.name = "imx-ipuv3-camera",

	},

};
@@ -1049,11 +1051,29 @@ static int ipu_add_client_devices(struct ipu_soc *ipu, unsigned long ipu_base) 
		const struct ipu_platform_reg *reg = &client_reg[i];

		struct platform_device *pdev;



		pdev = platform_device_register_data(dev, reg->name,

			id++, &reg->pdata, sizeof(reg->pdata));

		pdev = platform_device_alloc(reg->name, id++);

		if (!pdev) {

			ret = -ENOMEM;

			goto err_register;

		}



		pdev->dev.parent = dev;



		if (IS_ERR(pdev)) {

			ret = PTR_ERR(pdev);

		/* Associate subdevice with the corresponding port node */

		pdev->dev.of_node = of_graph_get_port_by_id(dev->of_node, i);

		if (!pdev->dev.of_node) {

			dev_err(dev, "missing port@%d node in %s\n", i,

				dev->of_node->full_name);

			ret = -ENODEV;

			goto err_register;

		}



		ret = platform_device_add_data(pdev, &reg->pdata,

					       sizeof(reg->pdata));

		if (!ret)

			ret = platform_device_add(pdev);

		if (ret) {

			platform_device_put(pdev);

			goto err_register;

		}

	}

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