linux-kernel - Re: [PATCH v4 1/3] Kconfig : Remove HAS_IOMEM dependency for Graphics support

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Date:   Tue, 27 Feb 2018 12:58:57 +0100
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     Christian Borntraeger <borntraeger@...ibm.com>
Cc:     Farhan Ali <alifm@...ux.vnet.ibm.com>,
        linux-kernel@...r.kernel.org, linux-fbdev@...r.kernel.org,
        linux-s390@...r.kernel.org, thuth@...hat.com, cohuck@...hat.com,
        tomi.valkeinen@...com, geert@...ux-m68k.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v4 1/3] Kconfig : Remove HAS_IOMEM dependency for
 Graphics support

On Tuesday, February 27, 2018 10:23:37 AM Christian Borntraeger wrote:
> This one has been in linux-next for some days. I can carry this via the kvm/s390
> tree, but I would like to get ack from at least Bartlomiej. Please also look at 
> patch 3 which also touches  drivers/video/console/Kconfig.
> 
> Adding Greg, as I would like an ack from him for patch 3.
> 
> On 02/22/2018 05:22 PM, Farhan Ali wrote:
> > The 'commit e25df1205f37 ("[S390] Kconfig: menus with depends on HAS_IOMEM.")'
> > added the HAS_IOMEM dependecy for "Graphics support". This disabled the
> > "Graphics support" menu for S390. But if we enable VT layer for S390,
> > we would also need to enable the dummy console. So let's remove the
> > HAS_IOMEM dependency.
> > 
> > Move this dependency to sub menu items and console drivers that use
> > io memory.
> > 
> > Signed-off-by: Farhan Ali <alifm@...ux.vnet.ibm.com>
> > Reviewed-by: Thomas Huth <thuth@...hat.com>

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>

> > ---
> >  drivers/video/Kconfig         | 5 ++++-
> >  drivers/video/console/Kconfig | 6 +++---
> >  2 files changed, 7 insertions(+), 4 deletions(-)
> > 
> > diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
> > index 3c20af9..4f950c6 100644
> > --- a/drivers/video/Kconfig
> > +++ b/drivers/video/Kconfig
> > @@ -3,7 +3,8 @@
> >  #
> > 
> >  menu "Graphics support"
> > -	depends on HAS_IOMEM
> > +
> > +if HAS_IOMEM
> > 
> >  config HAVE_FB_ATMEL
> >  	bool
> > @@ -36,6 +37,8 @@ config VIDEOMODE_HELPERS
> >  config HDMI
> >  	bool
> > 
> > +endif # HAS_IOMEM
> > +
> >  if VT
> >  	source "drivers/video/console/Kconfig"
> >  endif
> > diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
> > index 7f1f1fb..9485857 100644
> > --- a/drivers/video/console/Kconfig
> > +++ b/drivers/video/console/Kconfig
> > @@ -9,7 +9,7 @@ config VGA_CONSOLE
> >  	depends on !4xx && !PPC_8xx && !SPARC && !M68K && !PARISC && !FRV && \
> >  		!SUPERH && !BLACKFIN && !AVR32 && !MN10300 && !CRIS && \
> >  		(!ARM || ARCH_FOOTBRIDGE || ARCH_INTEGRATOR || ARCH_NETWINDER) && \
> > -		!ARM64 && !ARC && !MICROBLAZE && !OPENRISC
> > +		!ARM64 && !ARC && !MICROBLAZE && !OPENRISC && HAS_IOMEM
> >  	default y
> >  	help
> >  	  Saying Y here will allow you to use Linux in text mode through a
> > @@ -85,7 +85,7 @@ config MDA_CONSOLE
> > 
> >  config SGI_NEWPORT_CONSOLE
> >          tristate "SGI Newport Console support"
> > -        depends on SGI_IP22 
> > +        depends on SGI_IP22 && HAS_IOMEM
> >          select FONT_SUPPORT
> >          help
> >            Say Y here if you want the console on the Newport aka XL graphics
> > @@ -153,7 +153,7 @@ config FRAMEBUFFER_CONSOLE_ROTATION
> > 
> >  config STI_CONSOLE
> >          bool "STI text console"
> > -        depends on PARISC
> > +        depends on PARISC && HAS_IOMEM
> >          select FONT_SUPPORT
> >          default y
> >          help

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics