lkml.org 
[lkml]   [2012]   [May]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    SubjectRe: [PATCH][RESEND] gpio: Emma Mobile GPIO driver V2
    From
    On Thu, May 17, 2012 at 4:24 PM, Paul Mundt <lethal@linux-sh.org> wrote:
    > On Thu, May 17, 2012 at 03:22:23PM +0900, Magnus Damm wrote:
    >> From: Magnus Damm <damm@opensource.se>
    >>
    >> This patch is V2 of the Emma Mobile GPIO driver. This
    >> driver is designed to be reusable between multiple SoCs
    >> that share the same basic building block, but so far it
    >> has only been used on Emma Mobile EV2.
    >>
    >> Each driver instance handles 32 GPIOs with individually
    >> maskable IRQs. The driver operates on two I/O memory
    >> ranges and the 32 GPIOs are hooked up to two interrupts.
    >>
    >> In the case of Emma Mobile EV2 this GPIO building block
    >> is used as main external interrupt controller hooking up
    >> 159 GPIOS as 159 interrupts via 5 driver instances and
    >> 10 interrupts to the GIC and the Cortex-A9 Dual.
    >>
    >> Signed-off-by: Magnus Damm <damm@opensource.se>
    >> Acked-by: Linus Walleij <linus.walleij@linaro.org>
    >> ---
    >>
    >>  Rafael, can you please pick up?
    >>
    >>  Changes since V1:
    >>  - use inline for private data functions using container_of()
    >>  - use BIT(n) instead of 1 << n
    >>  - added legacy irq domain support for static mappings
    >
    > My distaste for arbitrary static mappings aside, it makes no sense to
    > support this as a module if the irq domain can't be cleaned up at
    > present.

    Good idea. I'll send an incremental fix for this. Thanks!

    / magnus
    --
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2012-05-17 10:21    [W:0.026 / U:61.764 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site