[PATCH 05/10] ARM: OMAP2+: Fix support for multiple devices on a GPMC chip select
Roger Quadros
rogerq at ti.com
Thu Oct 30 05:26:18 PDT 2014
On 10/30/2014 02:29 AM, Tony Lindgren wrote:
> There are cases where we have multiple device instances
> connected to a single GPMC chip select. For example, there
> are four UARTs on the Zoom debug boards that all share a
> single chip select and a GPIO interrupt.
>
> We do have support for this already in theory, but it's broken
> because we're bailing out if the chip select is already taken.
>
> To be able to provide checks on the chip select usage, let's
> add new struct gpmc_cs_data so we can start using already
> registered device names for checks.
>
> Later on we probably want to start using struct gpmc_cs_data
> as a wrapper for all the GPMC chipselect related data.
>
> Cc: Roger Quadros <rogerq at ti.com>
> Signed-off-by: Tony Lindgren <tony at atomide.com>
Acked-by: Roger Quadros <rogerq at ti.com>
cheers,
-roger
More information about the linux-arm-kernel
mailing list