When MUSB is operating in peripheral mode, probe registering
musb core using musb_register which intern return int value
for validation. so there is no scope to preserve struct musb
pointer but the same can be used in .remove musb_stop.
So fix this by return musb_register with struct musb pointer.
Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
---
board/compulab/cm_t3517/cm_t3517.c | 4 ++--
drivers/usb/musb-new/musb_uboot.c | 10 +++++-----
drivers/usb/musb-new/pic32.c | 6 ++++--
drivers/usb/musb-new/sunxi.c | 8 +++++---
include/linux/usb/musb.h | 4 ++--
5 files changed, 18 insertions(+), 14 deletions(-)
diff --git a/board/compulab/cm_t3517/cm_t3517.c
b/board/compulab/cm_t3517/cm_t3517.c
index 09cb27def0..668bb7631a 100644
--- a/board/compulab/cm_t3517/cm_t3517.c
+++ b/board/compulab/cm_t3517/cm_t3517.c
@@ -74,8 +74,8 @@ static void cm_t3517_musb_init(void)
CONF2_REFFREQ_13MHZ | CONF2_SESENDEN |
CONF2_VBDTCTEN | CONF2_DATPOL);
- if (musb_register(&cm_t3517_musb_pdata, &cm_t3517_musb_board_data,
- (void *)AM35XX_IPSS_USBOTGSS_BASE))
+ if (!musb_register(&cm_t3517_musb_pdata, &cm_t3517_musb_board_data,
+ (void *)AM35XX_IPSS_USBOTGSS_BASE))
printf("Failed initializing AM35x MUSB!\n");
}
#else
diff --git a/drivers/usb/musb-new/musb_uboot.c
b/drivers/usb/musb-new/musb_uboot.c
index 2b04fbd046..3cd89793c9 100644
--- a/drivers/usb/musb-new/musb_uboot.c
+++ b/drivers/usb/musb-new/musb_uboot.c
@@ -419,8 +419,8 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver
*driver)
}
#endif /* CONFIG_USB_MUSB_GADGET */
-int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
- void *ctl_regs)
+struct musb *musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
+ void *ctl_regs)
{
struct musb **musbp;
@@ -436,14 +436,14 @@ int musb_register(struct musb_hdrc_platform_data *plat,
void *bdata,
break;
#endif
default:
- return -EINVAL;
+ return NULL;
}
*musbp = musb_init_controller(plat, (struct device *)bdata, ctl_regs);
if (!*musbp) {
printf("Failed to init the controller\n");
- return -EIO;
+ return NULL;
}
- return 0;
+ return *musbp;
}
diff --git a/drivers/usb/musb-new/pic32.c b/drivers/usb/musb-new/pic32.c
index f04719d7af..3a19900e21 100644
--- a/drivers/usb/musb-new/pic32.c
+++ b/drivers/usb/musb-new/pic32.c
@@ -251,9 +251,11 @@ static int musb_usb_probe(struct udevice *dev)
ret = musb_lowlevel_init(mdata);
#else
pic32_musb_plat.mode = MUSB_PERIPHERAL;
- ret = musb_register(&pic32_musb_plat, &pdata->dev, mregs);
+ mdata->host = musb_register(&pic32_musb_plat, &pdata->dev, mregs);
+ if (!mdata->host)
+ return -EIO;
#endif
- if (ret == 0)
+ if ((ret == 0) && mdata->host)
printf("PIC32 MUSB OTG\n");
return ret;
diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
index 08de9c69c7..b846afb094 100644
--- a/drivers/usb/musb-new/sunxi.c
+++ b/drivers/usb/musb-new/sunxi.c
@@ -444,9 +444,11 @@ static int musb_usb_probe(struct udevice *dev)
printf("Allwinner mUSB OTG (Host)\n");
#else
pdata.mode = MUSB_PERIPHERAL;
- ret = musb_register(&pdata, &glue->dev, base);
- if (!ret)
- printf("Allwinner mUSB OTG (Peripheral)\n");
+ host->host = musb_register(&pdata, &glue->dev, base);
+ if (!host->host)
+ return -EIO;
+
+ printf("Allwinner mUSB OTG (Peripheral)\n");
#endif
return ret;
diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
index 9104414cf0..a31ce67a81 100644
--- a/include/linux/usb/musb.h
+++ b/include/linux/usb/musb.h
@@ -150,7 +150,7 @@ extern int tusb6010_platform_retime(unsigned is_refclk);
/*
* U-Boot specfic stuff
*/
-int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
- void *ctl_regs);
+struct musb *musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
+ void *ctl_regs);
#endif /* __LINUX_USB_MUSB_H */
--
2.17.1
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