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authorFelipe Balbi <balbi@ti.com>2014-04-16 16:16:33 -0500
committerFelipe Balbi <balbi@ti.com>2014-04-21 14:07:25 -0500
commit2f36ff6915c6c00df8b9962d9c6c7992befcf8ce (patch)
tree86659a77a445a849073032e9b74fdfad828d147c
parente741e637a85a802a93125dca1ecf324bc414101b (diff)
downloadlinux-linaro-stable-2f36ff6915c6c00df8b9962d9c6c7992befcf8ce.tar.gz
usb: phy: generic: allow multiples calls to usb_phy_generic_register()
it's now very easy to return a platform_device pointer and have the caller pass it as argument when calling usb_phy_generic_unregister(). Signed-off-by: Felipe Balbi <balbi@ti.com>
-rw-r--r--drivers/usb/musb/am35x.c12
-rw-r--r--drivers/usb/musb/blackfin.c10
-rw-r--r--drivers/usb/musb/da8xx.c14
-rw-r--r--drivers/usb/musb/tusb6010.c3
-rw-r--r--drivers/usb/phy/phy-generic.c19
-rw-r--r--include/linux/usb/usb_phy_generic.h9
6 files changed, 40 insertions, 27 deletions
diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
index 05459b56b2a8..0a34dd859555 100644
--- a/drivers/usb/musb/am35x.c
+++ b/drivers/usb/musb/am35x.c
@@ -85,6 +85,7 @@
struct am35x_glue {
struct device *dev;
struct platform_device *musb;
+ struct platform_device *phy;
struct clk *phy_clk;
struct clk *clk;
};
@@ -503,7 +504,9 @@ static int am35x_probe(struct platform_device *pdev)
pdata->platform_ops = &am35x_ops;
- usb_phy_generic_register();
+ glue->phy = usb_phy_generic_register();
+ if (IS_ERR(glue->phy))
+ goto err7;
platform_set_drvdata(pdev, glue);
pinfo = am35x_dev_info;
@@ -517,11 +520,14 @@ static int am35x_probe(struct platform_device *pdev)
if (IS_ERR(musb)) {
ret = PTR_ERR(musb);
dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
- goto err7;
+ goto err8;
}
return 0;
+err8:
+ usb_phy_generic_unregister(glue->phy);
+
err7:
clk_disable(clk);
@@ -546,7 +552,7 @@ static int am35x_remove(struct platform_device *pdev)
struct am35x_glue *glue = platform_get_drvdata(pdev);
platform_device_unregister(glue->musb);
- usb_phy_generic_unregister();
+ usb_phy_generic_unregister(glue->phy);
clk_disable(glue->clk);
clk_disable(glue->phy_clk);
clk_put(glue->clk);
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 53acffe9a858..d40d5f0b5528 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -29,6 +29,7 @@
struct bfin_glue {
struct device *dev;
struct platform_device *musb;
+ struct platform_device *phy;
};
#define glue_to_musb(g) platform_get_drvdata(g->musb)
@@ -475,7 +476,9 @@ static int bfin_probe(struct platform_device *pdev)
pdata->platform_ops = &bfin_ops;
- usb_phy_generic_register();
+ glue->phy = usb_phy_generic_register();
+ if (IS_ERR(glue->phy))
+ goto err2;
platform_set_drvdata(pdev, glue);
memset(musb_resources, 0x00, sizeof(*musb_resources) *
@@ -513,6 +516,9 @@ static int bfin_probe(struct platform_device *pdev)
return 0;
err3:
+ usb_phy_generic_unregister(glue->phy);
+
+err2:
platform_device_put(musb);
err1:
@@ -527,7 +533,7 @@ static int bfin_remove(struct platform_device *pdev)
struct bfin_glue *glue = platform_get_drvdata(pdev);
platform_device_unregister(glue->musb);
- usb_phy_generic_unregister();
+ usb_phy_generic_unregister(glue->phy);
kfree(glue);
return 0;
diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index 024751f9b31d..058775e647ad 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -85,6 +85,7 @@
struct da8xx_glue {
struct device *dev;
struct platform_device *musb;
+ struct platform_device *phy;
struct clk *clk;
};
@@ -510,7 +511,11 @@ static int da8xx_probe(struct platform_device *pdev)
pdata->platform_ops = &da8xx_ops;
- usb_phy_generic_register();
+ glue->phy = usb_phy_generic_register();
+ if (IS_ERR(glue->phy)) {
+ ret = PTR_ERR(glue->phy);
+ goto err5;
+ }
platform_set_drvdata(pdev, glue);
memset(musb_resources, 0x00, sizeof(*musb_resources) *
@@ -537,11 +542,14 @@ static int da8xx_probe(struct platform_device *pdev)
if (IS_ERR(musb)) {
ret = PTR_ERR(musb);
dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
- goto err5;
+ goto err6;
}
return 0;
+err6:
+ usb_phy_generic_unregister(glue->phy);
+
err5:
clk_disable(clk);
@@ -560,7 +568,7 @@ static int da8xx_remove(struct platform_device *pdev)
struct da8xx_glue *glue = platform_get_drvdata(pdev);
platform_device_unregister(glue->musb);
- usb_phy_generic_unregister();
+ usb_phy_generic_unregister(glue->phy);
clk_disable(glue->clk);
clk_put(glue->clk);
kfree(glue);
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index e1da199c6f21..f38a8dbd6075 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -31,6 +31,7 @@
struct tusb6010_glue {
struct device *dev;
struct platform_device *musb;
+ struct platform_device *phy;
};
static void tusb_musb_set_vbus(struct musb *musb, int is_on);
@@ -1222,7 +1223,7 @@ static int tusb_remove(struct platform_device *pdev)
struct tusb6010_glue *glue = platform_get_drvdata(pdev);
platform_device_unregister(glue->musb);
- usb_phy_generic_unregister();
+ usb_phy_generic_unregister(glue->phy);
kfree(glue);
return 0;
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c
index 2c49cd8f6d25..7594e5069ae5 100644
--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -41,25 +41,16 @@
#include "phy-generic.h"
-static struct platform_device *pd;
-
-void usb_phy_generic_register(void)
+struct platform_device *usb_phy_generic_register(void)
{
- if (pd)
- return;
- pd = platform_device_register_simple("usb_phy_generic", -1, NULL, 0);
- if (IS_ERR(pd)) {
- pr_err("Unable to register generic usb transceiver\n");
- pd = NULL;
- return;
- }
+ return platform_device_register_simple("usb_phy_generic",
+ PLATFORM_DEVID_AUTO, NULL, 0);
}
EXPORT_SYMBOL_GPL(usb_phy_generic_register);
-void usb_phy_generic_unregister(void)
+void usb_phy_generic_unregister(struct platform_device *pdev)
{
- platform_device_unregister(pd);
- pd = NULL;
+ platform_device_unregister(pdev);
}
EXPORT_SYMBOL_GPL(usb_phy_generic_unregister);
diff --git a/include/linux/usb/usb_phy_generic.h b/include/linux/usb/usb_phy_generic.h
index c00176d48625..8346bcc50c2f 100644
--- a/include/linux/usb/usb_phy_generic.h
+++ b/include/linux/usb/usb_phy_generic.h
@@ -15,14 +15,15 @@ struct usb_phy_generic_platform_data {
#if defined(CONFIG_NOP_USB_XCEIV) || (defined(CONFIG_NOP_USB_XCEIV_MODULE) && defined(MODULE))
/* sometimes transceivers are accessed only through e.g. ULPI */
-extern void usb_phy_generic_register(void);
-extern void usb_phy_generic_unregister(void);
+extern struct platform_device *usb_phy_generic_register(void);
+extern void usb_phy_generic_unregister(struct platform_device *);
#else
-static inline void usb_phy_generic_register(void)
+static inline struct platform_device *usb_phy_generic_register(void)
{
+ return NULL;
}
-static inline void usb_phy_generic_unregister(void)
+static inline void usb_phy_generic_unregister(struct platform_device *pdev)
{
}
#endif