Hi Tero, Govindraj,
On Thu, Sep 8, 2011 at 5:22 PM, Tero Kristo <t-kristo@xxxxxx> wrote:
> From: R, Govindraj <govindraj.raja@xxxxxx>
>
> Add API to determine IO-PAD wakeup event status for a given
> hwmod dynamic_mux pad.
>
> Signed-off-by: Govindraj.R <govindraj.raja@xxxxxx>
> ---
> arch/arm/mach-omap2/mux.c | 30 ++++++++++++++++++++++++++
> arch/arm/mach-omap2/mux.h | 13 +++++++++++
> arch/arm/mach-omap2/omap_hwmod.c | 7 ++++++
> arch/arm/plat-omap/include/plat/omap_hwmod.h | 1 +
> 4 files changed, 51 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
> index c7fb22a..50ee806 100644
> --- a/arch/arm/mach-omap2/mux.c
> +++ b/arch/arm/mach-omap2/mux.c
> @@ -351,6 +351,36 @@ err1:
> return NULL;
> }
>
> +/**
> + * omap_hwmod_mux_get_wake_status - omap hwmod check pad wakeup
> + * @hmux: Pads for a hwmod
> + *
> + * Gets the wakeup status of given pad from omap-hwmod.
> + * Returns true if wakeup event is set for pad else false
> + * if wakeup is not occured or pads are not avialable.
> + */
This comment is unclear wrt the code below.
IMO the code says:
Returns true if the wake-up capability is enabled and a wake-up event
occured on the pad; returns false otherwise.
> +bool omap_hwmod_mux_get_wake_status(struct omap_hwmod_mux_info *hmux)
> +{
> + int i;
> + unsigned int val;
> + u8 ret = false;
> +
> + for (i = 0; i < hmux->nr_pads; i++) {
> + struct omap_device_pad *pad = &hmux->pads[i];
> +
> + if (pad->flags & OMAP_DEVICE_PAD_WAKEUP) {
> + val = omap_mux_read(pad->partition,
> + pad->mux->reg_offset);
> + if (val & OMAP_WAKEUP_EVENT) {
> + ret = true;
> + break;
> + }
> + }
> + }
> +
> + return ret;
> +}
> +
Regards,
Jean
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