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Message-ID: <1350307680-24938-3-git-send-email-kishon@ti.com>
Date: Mon, 15 Oct 2012 18:57:55 +0530
From: Kishon Vijay Abraham I <kishon@...com>
To: <grant.likely@...retlab.ca>, <rob.herring@...xeda.com>,
<rob@...dley.net>, <balbi@...com>, <gregkh@...uxfoundation.org>,
<kishon@...com>, <devicetree-discuss@...ts.ozlabs.org>,
<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-usb@...r.kernel.org>, <linux-omap@...r.kernel.org>
CC: <sshtylyov@...sta.com>
Subject: [PATCH v4 2/7] usb: dwc3-omap: use of_platform API to create dwc3 core pdev
Used of_platform_populate() to populate dwc3 core platform_device
from device tree data. Since now the allocation of unique device id is
handled by of_*, removed the call to dwc3_get_device_id.
Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
---
drivers/usb/dwc3/dwc3-omap.c | 50 +++++++++---------------------------------
1 file changed, 10 insertions(+), 40 deletions(-)
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index d51c69c..4aaeec4 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -47,6 +47,7 @@
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/of.h>
+#include <linux/of_platform.h>
#include <linux/usb/otg.h>
#include <linux/usb/nop-usb-xceiv.h>
@@ -133,7 +134,6 @@ struct dwc3_omap {
/* device lock */
spinlock_t lock;
- struct platform_device *dwc3;
struct platform_device *usb2_phy;
struct platform_device *usb3_phy;
struct device *dev;
@@ -276,12 +276,10 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
struct dwc3_omap_data *pdata = pdev->dev.platform_data;
struct device_node *node = pdev->dev.of_node;
- struct platform_device *dwc3;
struct dwc3_omap *omap;
struct resource *res;
struct device *dev = &pdev->dev;
- int devid;
int size;
int ret = -ENOMEM;
int irq;
@@ -324,34 +322,19 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
return ret;
}
- devid = dwc3_get_device_id();
- if (devid < 0)
- return -ENODEV;
-
- dwc3 = platform_device_alloc("dwc3", devid);
- if (!dwc3) {
- dev_err(dev, "couldn't allocate dwc3 device\n");
- goto err1;
- }
-
context = devm_kzalloc(dev, resource_size(res), GFP_KERNEL);
if (!context) {
dev_err(dev, "couldn't allocate dwc3 context memory\n");
- goto err2;
+ return -ENOMEM;
}
spin_lock_init(&omap->lock);
- dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
- dwc3->dev.parent = dev;
- dwc3->dev.dma_mask = dev->dma_mask;
- dwc3->dev.dma_parms = dev->dma_parms;
omap->resource_size = resource_size(res);
omap->context = context;
omap->dev = dev;
omap->irq = irq;
omap->base = base;
- omap->dwc3 = dwc3;
reg = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS);
@@ -396,7 +379,7 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
if (ret) {
dev_err(dev, "failed to request IRQ #%d --> %d\n",
omap->irq, ret);
- goto err2;
+ return ret;
}
/* enable all IRQs */
@@ -415,28 +398,16 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_1, reg);
- ret = platform_device_add_resources(dwc3, pdev->resource,
- pdev->num_resources);
- if (ret) {
- dev_err(dev, "couldn't add resources to dwc3 device\n");
- goto err2;
- }
-
- ret = platform_device_add(dwc3);
- if (ret) {
- dev_err(dev, "failed to register dwc3 device\n");
- goto err2;
+ if (node) {
+ ret = of_platform_populate(node, NULL, NULL, dev);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "failed to add create dwc3 core\n");
+ return ret;
+ }
}
return 0;
-
-err2:
- platform_device_put(dwc3);
-
-err1:
- dwc3_put_device_id(devid);
-
- return ret;
}
static int __devexit dwc3_omap_remove(struct platform_device *pdev)
@@ -446,7 +417,6 @@ static int __devexit dwc3_omap_remove(struct platform_device *pdev)
platform_device_unregister(omap->usb2_phy);
platform_device_unregister(omap->usb3_phy);
- dwc3_put_device_id(omap->dwc3->id);
device_for_each_child(&pdev->dev, NULL, dwc3_omap_remove_core);
return 0;
--
1.7.9.5
--
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