[PATCH 1/7 v2] gpiolib: let gpiochip_add_pin_range() specify offset

Stephen Warren swarren at wwwdotorg.org
Tue Nov 20 12:32:44 EST 2012


On 11/20/2012 07:04 AM, Linus Walleij wrote:
> From: Linus Walleij <linus.walleij at linaro.org>
> 
> Like with commit 3c739ad0df5eb41cd7adad879eda6aa09879eb76
> it is not always enough to specify all the pins of a gpio_chip
> from offset zero to be added to a pin map range, since the
> mapping from GPIO to pin controller may not be linear at all,
> but need to be broken into a few consecutive sub-ranges or
> 1-pin entries for complicated cases. The ranges may also be
> sparse.
> 
> This alters the signature of the function to accept offsets
> into both the GPIO-chip local pinspace and the pin controller
> local pinspace.

Aside from the one comment I made, the series,
Reviewed-by: Stephen Warren <swarren at nvidia.com>




More information about the linux-arm-kernel mailing list