linux-kernel - Re: [PATCH 2/9] 8250/Kconfig: add config option CONFIG_SERIAL_8250

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Date:	Fri, 4 Dec 2015 12:11:14 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Wang Hongcheng <annie.wang@....com>
Cc:	Vinod Koul <vinod.koul@...el.com>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Joerg Roedel <joro@...tes.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org, dmaengine@...r.kernel.org,
	iommu@...ts.linux-foundation.org, Huang Rui <ray.huang@....com>,
	Wan Zongshun <vincent.wan@....com>, Ken Xue <ken.xue@....com>,
	Tony Li <tony.li@....com>
Subject: Re: [PATCH 2/9] 8250/Kconfig: add config option
 CONFIG_SERIAL_8250_AMD

On Fri, Dec 04, 2015 at 11:24:19AM +0800, Wang Hongcheng wrote:
> Add config option  CONFIG_SERIAL_8250_AMD in use of AMD carrizo.
> Because carrizo's UART DMA device is an amba device, it selects
> ARM_AMBA option. Anything uses amba devices must select ARM_AMBA.
> 
> Signed-off-by: Wang Hongcheng <annie.wang@....com>
> ---
>  drivers/tty/serial/8250/Kconfig | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
> index 6412f14..d9717c1 100644
> --- a/drivers/tty/serial/8250/Kconfig
> +++ b/drivers/tty/serial/8250/Kconfig
> @@ -378,3 +378,11 @@ config SERIAL_8250_MID
>  	  Selecting this option will enable handling of the extra features
>  	  present on the UART found on Intel Medfield SOC and various other
>  	  Intel platforms.
> +
> +config SERIAL_8250_AMD
> +        bool "AMD carrizo serial port support"
> +        depends on SERIAL_8250
> +	select ARM_AMBA
> +        help
> +           If you have a Carrizo  based board and want to use the
> +           serial port, say Y to this option. If unsure, say N.

Please do not use "Carrizo" in any user-visible text because the vendors
and their marketing departments naming are confusing us to hell already.
Use F15h, models 0x60-0x6F (I believe CZ is this range but I'm not sure
myself anymore either) so that people *actually* can know what kind of
CPU it is by looking at /proc/cpuinfo.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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