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Re: [Xen-devel] [PATCH 2/6] arm: make it possible to enable/disable UART drivers



On Thu, 19 Apr 2018, Julien Grall wrote:
> Hi Stefano,
> 
> Please CC "THE REST" maintainers here.
> 
> On 18/04/18 23:15, Stefano Stabellini wrote:
> > All the UART drivers are silent options. Add one line descriptions so
> > that can be de/selected via menuconfig.
> > 
> > Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> > ---
> >   xen/drivers/char/Kconfig | 16 ++++++++--------
> >   1 file changed, 8 insertions(+), 8 deletions(-)
> > 
> > diff --git a/xen/drivers/char/Kconfig b/xen/drivers/char/Kconfig
> > index cc78ec3..b6fcefd 100644
> > --- a/xen/drivers/char/Kconfig
> > +++ b/xen/drivers/char/Kconfig
> > @@ -1,11 +1,11 @@
> >   config HAS_NS16550
> > -   bool
> > +   bool "NS16550 UART driver"
> 
> It looks like to me that x86 will require this unconditionally. So that's
> going to break randconfig.

Thank you, I'll fix


> >     default y
> >     help
> >       This selects the 16550-series UART support. For most systems, say Y.
> >     config HAS_CADENCE_UART
> > -   bool
> > +   bool "Xilinx Cadence UART driver"
> >     default y
> >     depends on ARM_64
> >     help
> > @@ -13,7 +13,7 @@ config HAS_CADENCE_UART
> >       based board, say Y.
> >     config HAS_MVEBU
> > -   bool am not entirely sure whether x86 require it by default.
> > +   bool "Marvell MVEBU UART driver"
> >     default y
> >     depends on ARM_64
> >     help
> > @@ -21,7 +21,7 @@ config HAS_MVEBU
> >       based board, say Y.
> >     config HAS_PL011
> > -   bool
> > +   bool "ARM PL011 UART driver"
> >     default y
> >     depends on ARM
> >     help
> > @@ -29,7 +29,7 @@ config HAS_PL011
> >       an Integrator/PP2, Integrator/CP or Versatile platform, say Y.
> >     config HAS_EXYNOS4210
> > -   bool
> > +   bool "Samsung Exynos 4210 UART driver"
> >     default y
> >     depends on ARM_32
> >     help
> > @@ -37,7 +37,7 @@ config HAS_EXYNOS4210
> >       Exynos based board, say Y.
> >     config HAS_OMAP
> > -   bool
> > +   bool "Texas Instruments OMAP UART driver"
> >     default y
> >     depends on ARM_32
> >     help
> > @@ -45,7 +45,7 @@ config HAS_OMAP
> >       Instruments based CPU, say Y.
> >     config HAS_SCIF
> > -   bool
> > +   bool "SuperH SCI(F) UART driver"
> >     default y
> >     depends on ARM
> >     help
> > @@ -53,7 +53,7 @@ config HAS_SCIF
> >       or Renesas R-Car Gen 2/3 based board say Y.
> >     config HAS_EHCI
> > -   bool
> > +   bool "EHCI UART driver"
> 
> Well, you are going to break at least Arm because this driver is not meant to
> be working there.
> 
> Furthermore, it looks like to me that x86 will require this unconditionally.

I'll fix this too


> >     help
> >       This selects the USB based EHCI debug port to be used as a UART. If
> >       you have an x86 based system with USB, say Y.
> > 
> 
> Cheers,
> 
> -- 
> Julien Grall
> 

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