lkml.org 
[lkml]   [2010]   [Oct]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH resend] Add sc16is7x2 driver
On 15.10.2010 16:27, Greg KH wrote:
> On Fri, Oct 15, 2010 at 09:24:34AM +0200, Manuel Stahl wrote:
>> On 14.10.2010 21:01, Greg KH wrote:
>>> On Thu, Oct 07, 2010 at 10:15:07AM +0200, Manuel Stahl wrote:
>>>> --- /dev/null
>>>> +++ b/include/linux/spi/sc16is7x2.h
>>>> @@ -0,0 +1,17 @@
>>>> +#ifndef LINUX_SPI_SC16IS752_H
>>>> +#define LINUX_SPI_SC16IS752_H
>>>> +
>>>> +#define SC16IS7X2_NR_GPIOS 8
>>>> +
>>>> +struct sc16is7x2_platform_data {
>>>> + unsigned int uartclk;
>>>> + /* uart line number of the first channel */
>>>> + unsigned uart_base;
>>>> + /* number assigned to the first GPIO */
>>>> + unsigned gpio_base;
>>>> + char *label;
>>>> + /* list of GPIO names (array length = SC16IS7X2_NR_GPIOS) */
>>>> + const char *const *names;
>>>> +};
>>>> +
>>>> +#endif
>>>
>>> Why is this needed in a .h file? What other .c file uses this define
>>> and structure?
>>>
>>> thanks,
>>>
>>> greg k-h
>>
>> The board setup code can pass information about the uart and gpio
>> enumeration.
>
> What "board setup code"? I don't see that here in the patch anywhere.

SPI devices are generally set up for a specific hardware board. I.e. for
some ARM boards there is setup code in
linux/arch/arm/mach-at91/board-<xyz>.c

I use the sc16is7x2 for a board that is not yet in vanilla, so the board
setup code is not included in the patch.

Regards,
--
Manuel Stahl
Fraunhofer-Institut IIS
Leistungsoptimierte Systeme

Nordostpark 93
D90411 Nürnberg
Telefon +49 (0)911/58061-6419
Fax +49 (0)911/58061-6398
E-Mail manuel.stahl@iis.fraunhofer.de

http://www.iis.fraunhofer.de
http://www.smart-power.fraunhofer.de
begin:vcard
fn:Manuel Stahl
n:Stahl;Manuel
email;internet:manuel.stahl@iis.fraunhofer.de
tel;work:+49 911 58061-6419
x-mozilla-html:FALSE
version:2.1
end:vcard

\
 
 \ /
  Last update: 2010-10-15 17:11    [from the cache]
©2003-2011 Jasper Spaans