[U-Boot] [PATCH V4, 1/6] dm: gpio: add a default gpio xlate routine

[Simon Glass]

On 24 April 2016 at 17:32, Eric Nelson <eric at nelint.com> wrote:
> Many drivers use a common form of offset + flags for device
> tree nodes. e.g.:
>         <&gpio1 2 GPIO_ACTIVE_LOW>
>
> This patch adds a common implementation of this type of parsing
> and calls it when a gpio driver doesn't supply its' own xlate
> routine.
>
> This will allow removal of the driver-specific versions in a
> handful of drivers and simplify the addition of new drivers.
>
> Signed-off-by: Eric Nelson <eric at nelint.com>
> Reviewed-by: Stephen Warren <swarren at nvidia.com>
> ---
>   V2 removes parsing of offset from the gpio_find_and_xlate routine,
>   and only parses the offset and GPIO_ACTIVE_LOW flag when a
>   driver-specific xlate is unavailable.
>
>   V3 re-works tests of the argument count as suggested by Stephen Warren
>   and will allow parsing of nodes with no flags field:
>         <&gpio1 2>
>
>   V4 fixes an indent with spaces instead of tabs
>
>  drivers/gpio/gpio-uclass.c | 30 +++++++++++++++++++++++-------
>  include/asm-generic/gpio.h | 19 ++++++++++++++-----
>  2 files changed, 37 insertions(+), 12 deletions(-)

Acked-by: Simon Glass <sjg at chromium.org>