Re: musb as module broken in 2.6.38

[Alexander Holler]

Am 16.03.2011 10:55, schrieb Felipe Balbi:
> On Wed, Mar 16, 2011 at 10:47:21AM +0100, Alexander Holler wrote:
> > ------------
> > beagle linux # grep -i MUSB .config
> > CONFIG_USB_MUSB_HDRC=m
> > # CONFIG_USB_MUSB_TUSB6010 is not set
> > CONFIG_USB_MUSB_OMAP2PLUS=y
> > # CONFIG_USB_MUSB_AM35X is not set
> > # CONFIG_USB_MUSB_HOST is not set
> > # CONFIG_USB_MUSB_PERIPHERAL is not set
> > CONFIG_USB_MUSB_OTG=y
> > CONFIG_USB_GADGET_MUSB_HDRC=y
> > CONFIG_USB_MUSB_HDRC_HCD=y
> > # CONFIG_MUSB_PIO_ONLY is not set
> > CONFIG_USB_MUSB_DEBUG=y
> > beagle linux # modprobe musb_hdrc
> > FATAL: Error inserting musb_hdrc (/lib/modules/2.6.38-beagleboard-00002-g0017ea0-dirty/kernel/drivers/usb/musb/musb_hdrc.ko):
> > No such device
> > beagle linux # tail -n 1 /var/log/messages
> > Mar 16 10:37:51 beagle kernel: [  177.302825] musb-hdrc: version 6.0,
> > musb-dma, otg (peripheral+host), debug=5
> > beagle linux # ls /sys/devices/platform/ | grep musb
> > musb-omap2430
> > ------------
> >
> > The problem in detail:
> >
> > Through modprobe musb_core.c:musb_init() is called, and this calls
> > platform_driver_probe() with a pointer to a struct of platform_device
> > where the name is musb-hdrc.
> > drivers/base/platform.c:platform_driver_probe() fails with -ENODEV
> > because it doesn't find a platform device with the name musb-hdrc
> > (list_empty()) which is understandable because the platform-device
> > has the name musb-omap2430.
>
> look further, omap2430.c allocates musb-hdrc platform_device. The
> problem is a different one.
>
> static int __init omap2430_probe(struct platform_device *pdev)

Neither omap2430_init() nor omap2430_probe() will be called here.

Regards,

Alexander Holler
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