lkml.org 
[lkml]   [2013]   [Jul]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH 3/4] rtc: omap: add rtc wakeup support to alarm events
Date
Hebbar Gururaja <gururaja.hebbar@ti.com> writes:

> On some platforms (like AM33xx), a special register (RTC_IRQWAKEEN)
> is available to enable Alarm Wakeup feature. This register needs to be
> properly handled for the rtcwake to work properly.
>
> Platforms using such IP should set "ti,am3352-rtc" in rtc device dt
> compatibility node.
>
> Signed-off-by: Hebbar Gururaja <gururaja.hebbar@ti.com>
> Cc: Grant Likely <grant.likely@linaro.org>
> Cc: Rob Herring <rob.herring@calxeda.com>
> Cc: Rob Landley <rob@landley.net>
> Cc: Sekhar Nori <nsekhar@ti.com>
> Cc: Kevin Hilman <khilman@linaro.org>
> Cc: Alessandro Zummo <a.zummo@towertech.it>
> Cc: rtc-linux@googlegroups.com
> Cc: devicetree-discuss@lists.ozlabs.org
> Cc: linux-doc@vger.kernel.org

Acked-by: Kevin Hilman <khilman@linaro.org>

...with a minor nit below...

> ---
> :100644 100644 b47aa41... 5a0f02d... M Documentation/devicetree/bindings/rtc/rtc-omap.txt
> :100644 100644 761919d... 666b0c2... M drivers/rtc/rtc-omap.c
> Documentation/devicetree/bindings/rtc/rtc-omap.txt | 6 ++-
> drivers/rtc/rtc-omap.c | 56 +++++++++++++++++---
> 2 files changed, 54 insertions(+), 8 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/rtc/rtc-omap.txt b/Documentation/devicetree/bindings/rtc/rtc-omap.txt
> index b47aa41..5a0f02d 100644
> --- a/Documentation/devicetree/bindings/rtc/rtc-omap.txt
> +++ b/Documentation/devicetree/bindings/rtc/rtc-omap.txt
> @@ -1,7 +1,11 @@
> TI Real Time Clock
>
> Required properties:
> -- compatible: "ti,da830-rtc"
> +- compatible:
> + - "ti,da830-rtc" - for RTC IP used similar to that on DA8xx SoC family.
> + - "ti,am3352-rtc" - for RTC IP used similar to that on AM335x SoC family.
> + This RTC IP has special WAKE-EN Register to enable
> + Wakeup generation for event Alarm.
> - reg: Address range of rtc register set
> - interrupts: rtc timer, alarm interrupts in order
> - interrupt-parent: phandle for the interrupt controller
> diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
> index 761919d..666b0c2 100644
> --- a/drivers/rtc/rtc-omap.c
> +++ b/drivers/rtc/rtc-omap.c
> @@ -72,6 +72,8 @@
> #define OMAP_RTC_KICK0_REG 0x6c
> #define OMAP_RTC_KICK1_REG 0x70
>
> +#define OMAP_RTC_IRQWAKEEN 0x7C
> +

nit: letters in hex numbers are usually lower-case.


Kevin


\
 
 \ /
  Last update: 2013-07-02 03:02    [W:0.116 / U:0.272 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site