linux-kernel - Re: [PATCH v11 3/6] x86/intel-ivi: Add Intel In-Vehicle Infotainment (IVI) systems used in cars support

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Date:   Fri, 18 Nov 2016 10:20:39 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Tan Jui Nee <jui.nee.tan@...el.com>
cc:     mika.westerberg@...ux.intel.com, heikki.krogerus@...ux.intel.com,
        andriy.shevchenko@...ux.intel.com, dvhart@...radead.org,
        mingo@...hat.com, hpa@...or.com, x86@...nel.org,
        ptyser@...-inc.com, lee.jones@...aro.org, linus.walleij@...aro.org,
        linux-gpio@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        linux-kernel@...r.kernel.org, jonathan.yong@...el.com,
        ong.hock.yu@...el.com, tony.luck@...el.com,
        wan.ahmad.zainie.wan.mohamad@...el.com, yunying.sun@...el.com
Subject: Re: [PATCH v11 3/6] x86/intel-ivi: Add Intel In-Vehicle Infotainment
 (IVI) systems used in cars support

On Fri, 18 Nov 2016, Tan Jui Nee wrote:
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index bada636..6019755 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -512,6 +512,16 @@ config X86_INTEL_CE
>  	  This option compiles in support for the CE4100 SOC for settop
>  	  boxes and media devices.
>  
> +config X86_INTEL_IVI
> +	bool "Intel In-Vehicle Infotainment (IVI) systems used in cars"
> +	depends on X86 && PCI
> +	select P2SB
> +	---help---
> +	  Select this option to enable MMIO BAR access over the P2SB for
> +	  non-ACPI Intel Apollo Lake SoC platforms. This driver uses the P2SB
> +	  hide/unhide mechanism cooperatively to pass the PCI BAR address to
> +	  the platform driver, currently GPIO.

Errm. INTEL_IVI does not enable MMIO BAR access over P2SB, CONFIG_P2SB does.

Thanks,

	tglx