RE: [PATCH] usb: phy: rcar-gen2-usb: Fix USBHS_UGSTS_LOCK value

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Hi Geert-san,

Thank you for your comment!

> Sent: Tuesday, April 28, 2015 6:55 PM
> 
> Hi Shimoda-san,
> 
> On Tue, Apr 28, 2015 at 3:36 AM, Yoshihiro Shimoda
> <yoshihiro.shimoda.uh@xxxxxxxxxxx> wrote:
> >> Sent: Tuesday, April 28, 2015 4:45 AM
> >> On Thu, Apr 02, 2015 at 08:22:34PM +0900, Yoshihiro Shimoda wrote:
> >> > According to the technical update (No. TN-RCS-B011A/E), the UGSTS LOCK
> >> > bit location is bit 8, not bits 9 and 8. So, this patch fixes the
> >> > USBHS_UGSTS_LOCK value.
> >> >
> >> > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
> >>
> >> this doesn't apply to v4.1-rc1, if it's still needed, please rebase.
> >
> > Thank you for the notice. I found that this patch has been already merged in v4.1-rc1 by Greg.
> 
> drivers/usb/phy/phy-rcar-gen2-usb.c (which supports legacy platform data only)
> is unused since commit a483dcbfa21f919c ("ARM: shmobile: lager: Remove
> legacy board support").
> 
> It's my understanding this driver has been replaced by a new driver, which
> supports DT only (drivers/phy/phy-rcar-gen2.c).

Yes. You are correct.

> That driver still has the wrong value:
> #define USBHS_UGSTS_LOCK                0x00000300 /* The manuals have 0x3 */
> 
> So:
>   1) Shouldn't drivers/phy/phy-rcar-gen2.c be fixed?

I already submitted such a patch. However, the patch is not merged yet.
(I should have sent a ping or something about this patch.)
http://thread.gmane.org/gmane.linux.ports.sh.devel/45089

>   2) Shouldn't drivers/usb/phy/phy-rcar-gen2-usb.c et al be removed?

We should remove this code because legacy board codes were already removed.
(In other words, nobody uses this code now.)

Best regards,
Yoshihiro Shimoda

> Thanks!
> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds
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