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

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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: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Philipp Zabel 2015-11-09 16:35:12 +01:00
parent 99ae78c373
commit 304e6be652
1 changed files with 38 additions and 18 deletions
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56
drivers/gpu/ipu-v3/ipu-common.c
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@ -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;
}
if (IS_ERR(pdev)) {
ret = PTR_ERR(pdev);
pdev->dev.parent = dev;
/* 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;
}
}