[PATCH v7 07/14] USB: Chipidea: add unified ci13xxx_{add, remove}_device for platform drivers
Richard Zhao
richard.zhao at freescale.com
Mon Jun 25 02:56:24 EDT 2012
Platform drivers do the similar things to add/remove ci13xxx device, so
create a unified one.
Signed-off-by: Richard Zhao <richard.zhao at freescale.com>
Reviewed-by: Felipe Balbi <balbi at ti.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin at linux.intel.com>
---
drivers/usb/chipidea/ci13xxx_msm.c | 34 ++++++----------------------
drivers/usb/chipidea/ci13xxx_pci.c | 34 +++++-----------------------
drivers/usb/chipidea/core.c | 43 ++++++++++++++++++++++++++++++++++++
include/linux/usb/chipidea.h | 7 ++++++
4 files changed, 63 insertions(+), 55 deletions(-)
diff --git a/drivers/usb/chipidea/ci13xxx_msm.c b/drivers/usb/chipidea/ci13xxx_msm.c
index a7dd9f1..92bfe36 100644
--- a/drivers/usb/chipidea/ci13xxx_msm.c
+++ b/drivers/usb/chipidea/ci13xxx_msm.c
@@ -58,50 +58,30 @@ static struct ci13xxx_platform_data ci13xxx_msm_platdata = {
static int __devinit ci13xxx_msm_probe(struct platform_device *pdev)
{
struct platform_device *plat_ci;
- int ret;
dev_dbg(&pdev->dev, "ci13xxx_msm_probe\n");
- plat_ci = platform_device_alloc("ci_hdrc", -1);
- if (!plat_ci) {
- dev_err(&pdev->dev, "can't allocate ci_hdrc platform device\n");
- return -ENOMEM;
+ plat_ci = ci13xxx_add_device(&pdev->dev,
+ pdev->resource, pdev->num_resources,
+ &ci13xxx_msm_platdata);
+ if (IS_ERR(plat_ci)) {
+ dev_err(&pdev->dev, "ci13xxx_add_device failed!\n");
+ return PTR_ERR(plat_ci);
}
- ret = platform_device_add_resources(plat_ci, pdev->resource,
- pdev->num_resources);
- if (ret) {
- dev_err(&pdev->dev, "can't add resources to platform device\n");
- goto put_platform;
- }
-
- ret = platform_device_add_data(plat_ci, &ci13xxx_msm_platdata,
- sizeof(ci13xxx_msm_platdata));
- if (ret)
- goto put_platform;
-
- ret = platform_device_add(plat_ci);
- if (ret)
- goto put_platform;
-
platform_set_drvdata(pdev, plat_ci);
pm_runtime_no_callbacks(&pdev->dev);
pm_runtime_enable(&pdev->dev);
return 0;
-
-put_platform:
- platform_device_put(plat_ci);
-
- return ret;
}
static int __devexit ci13xxx_msm_remove(struct platform_device *pdev)
{
struct platform_device *plat_ci = platform_get_drvdata(pdev);
- platform_device_unregister(plat_ci);
+ ci13xxx_remove_device(plat_ci);
return 0;
}
diff --git a/drivers/usb/chipidea/ci13xxx_pci.c b/drivers/usb/chipidea/ci13xxx_pci.c
index cdcac3a..918e149 100644
--- a/drivers/usb/chipidea/ci13xxx_pci.c
+++ b/drivers/usb/chipidea/ci13xxx_pci.c
@@ -75,13 +75,6 @@ static int __devinit ci13xxx_pci_probe(struct pci_dev *pdev,
pci_set_master(pdev);
pci_try_set_mwi(pdev);
- plat_ci = platform_device_alloc("ci_hdrc", -1);
- if (!plat_ci) {
- dev_err(&pdev->dev, "can't allocate ci_hdrc platform device\n");
- retval = -ENOMEM;
- goto disable_device;
- }
-
memset(res, 0, sizeof(res));
res[0].start = pci_resource_start(pdev, 0);
res[0].end = pci_resource_end(pdev, 0);
@@ -89,32 +82,17 @@ static int __devinit ci13xxx_pci_probe(struct pci_dev *pdev,
res[1].start = pdev->irq;
res[1].flags = IORESOURCE_IRQ;
- retval = platform_device_add_resources(plat_ci, res, nres);
- if (retval) {
- dev_err(&pdev->dev, "can't add resources to platform device\n");
- goto put_platform;
+ plat_ci = ci13xxx_add_device(&pdev->dev, res, nres, platdata);
+ if (IS_ERR(plat_ci)) {
+ dev_err(&pdev->dev, "ci13xxx_add_device failed!\n");
+ retval = PTR_ERR(plat_ci);
+ goto disable_device;
}
- retval = platform_device_add_data(plat_ci, platdata, sizeof(*platdata));
- if (retval)
- goto put_platform;
-
- dma_set_coherent_mask(&plat_ci->dev, pdev->dev.coherent_dma_mask);
- plat_ci->dev.dma_mask = pdev->dev.dma_mask;
- plat_ci->dev.dma_parms = pdev->dev.dma_parms;
- plat_ci->dev.parent = &pdev->dev;
-
pci_set_drvdata(pdev, plat_ci);
- retval = platform_device_add(plat_ci);
- if (retval)
- goto put_platform;
-
return 0;
- put_platform:
- pci_set_drvdata(pdev, NULL);
- platform_device_put(plat_ci);
disable_device:
pci_disable_device(pdev);
done:
@@ -133,7 +111,7 @@ static void __devexit ci13xxx_pci_remove(struct pci_dev *pdev)
{
struct platform_device *plat_ci = pci_get_drvdata(pdev);
- platform_device_unregister(plat_ci);
+ ci13xxx_remove_device(plat_ci);
pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev);
}
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 9a883bd..8b9d06f 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -332,6 +332,49 @@ static irqreturn_t ci_irq(int irq, void *data)
return ci->role == CI_ROLE_END ? ret : ci_role(ci)->irq(ci);
}
+struct platform_device *ci13xxx_add_device(struct device *dev,
+ struct resource *res, int nres,
+ struct ci13xxx_platform_data *platdata)
+{
+ struct platform_device *pdev;
+ int ret;
+
+ /* FIXME: find a way to choose id */
+ pdev = platform_device_alloc("ci_hdrc", -1);
+ if (!pdev)
+ return ERR_PTR(-ENOMEM);
+
+ pdev->dev.parent = dev;
+ pdev->dev.dma_mask = dev->dma_mask;
+ pdev->dev.dma_parms = dev->dma_parms;
+ dma_set_coherent_mask(&pdev->dev, dev->coherent_dma_mask);
+
+ ret = platform_device_add_resources(pdev, res, nres);
+ if (ret)
+ goto err;
+
+ ret = platform_device_add_data(pdev, platdata, sizeof(*platdata));
+ if (ret)
+ goto err;
+
+ ret = platform_device_add(pdev);
+ if (ret)
+ goto err;
+
+ return pdev;
+
+err:
+ platform_device_put(pdev);
+ return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(ci13xxx_add_device);
+
+void ci13xxx_remove_device(struct platform_device *pdev)
+{
+ platform_device_unregister(pdev);
+}
+EXPORT_SYMBOL_GPL(ci13xxx_remove_device);
+
static int __devinit ci_hdrc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index d2f7e49..be078f0 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -25,4 +25,11 @@ struct ci13xxx_platform_data {
/* Default offset of capability registers */
#define DEF_CAPOFFSET 0x100
+/* Add ci13xxx device */
+struct platform_device *ci13xxx_add_device(struct device *dev,
+ struct resource *res, int nres,
+ struct ci13xxx_platform_data *platdata);
+/* Remove ci13xxx device */
+void ci13xxx_remove_device(struct platform_device *pdev);
+
#endif
--
1.7.9.5
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