Re: EHCI_MV confusion was: Re: kirkwood devicetree respin

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On Wed, 21 Mar 2012, Jason Cooper wrote:

> On Tue, Mar 20, 2012 at 11:54:53PM -0400, Nicolas Pitre wrote:
> > On Tue, 20 Mar 2012, Arnd Bergmann wrote:
> > 
> > > ehci-orion only makes sense on PLAT_ORION, and they never have any
> > > other platform ehci driver.
> > > 
> > > ehci-mv only makese sense on PLAT_PXA, and they  also don't have any
> > > other platform ehci driver.
> > 
> > BTW, as someone who once was the active maintainer for PXA, and later 
> > the active maintainer for Orion, I should say that ehci-mv is a terribly 
> > bad name (as demonstrated, not all Marvell SOCs use ehci-mv) and 
> > confusion would be much reduced if it was renamed to ehci-pxa.
> 
> How about like this (to differentiate against pxa168):
> 
> diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
> index 353cdd4..e1bc205 100644
> --- a/drivers/usb/host/Kconfig
> +++ b/drivers/usb/host/Kconfig
> @@ -194,8 +194,8 @@ config USB_EHCI_S5P
>         help
>          Enable support for the S5P SOC's on-chip EHCI controller.
>  
> -config USB_EHCI_MV
> -       bool "EHCI support for Marvell on-chip controller"
> +config USB_EHCI_MV_PXA
> +       bool "EHCI support for Marvell PXA on-chip controller"
>         depends on USB_EHCI_HCD
>         select USB_EHCI_ROOT_HUB_TT
>         ---help---
> diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
> index a007a9f..4e1ec71 100644
> --- a/drivers/usb/host/ehci-hcd.c
> +++ b/drivers/usb/host/ehci-hcd.c
> @@ -1371,8 +1371,8 @@ MODULE_LICENSE ("GPL");
>  #define PLATFORM_DRIVER                ehci_xls_driver
>  #endif
>  
> -#ifdef CONFIG_USB_EHCI_MV
> -#include "ehci-mv.c"
> +#ifdef CONFIG_USB_EHCI_MV_PXA
> +#include "ehci-mvpxa.c"
>  #define        PLATFORM_DRIVER         ehci_mv_driver
>  #endif

You guys have spent an awful lot of time and effort beating a dead 
horse.  See commit a219b666e89bd2f7810b4eaaf4d7382ad0e6ecb1 (usb: host: 
add dependence for USB_EHCI_MV).

Alan Stern

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