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Date: Sun, 28 Sep 2014 12:20:10 +0800 From: Luwei Zhou <b45643@...escale.com> To: <davem@...emloft.net>, <richardcochran@...il.com> CC: <netdev@...r.kernel.org>, <shawn.guo@...aro.org>, <bhutchings@...arflare.com>, <R49496@...escale.com>, <b38611@...escale.com>, <b20596@...escale.com>, <stephen@...workplumber.org> Subject: [PATCH v2 3/4] ptp: Add PTP_PF_PPS enumeration to ptp_pin_function. PTP_PIN_SET/GETFUNC interface can be used to specify the channel index when multi-channel timer is used to ouput PPS. Need to add PPS corresponding pin function enumeration in the ptp. Signed-off-by: Luwei Zhou <b45643@...escale.com> --- drivers/ptp/ptp_chardev.c | 8 ++++++++ include/linux/ptp_clock_kernel.h | 2 ++ include/uapi/linux/ptp_clock.h | 1 + 3 files changed, 11 insertions(+) diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c index f8a7609..a746e5a 100644 --- a/drivers/ptp/ptp_chardev.c +++ b/drivers/ptp/ptp_chardev.c @@ -48,6 +48,10 @@ static int ptp_disable_pinfunc(struct ptp_clock_info *ops, break; case PTP_PF_PHYSYNC: break; + case PTP_PF_PPS: + rq.type = PTP_CLK_REQ_PPS; + err = ops->enable(ops, &rq, 0); + break; default: return -EINVAL; } @@ -85,6 +89,10 @@ int ptp_set_pinfunc(struct ptp_clock *ptp, unsigned int pin, if (chan >= info->n_per_out) return -EINVAL; break; + case PTP_PF_PPS: + if (chan >= info->n_pps_chan) + return -EINVAL; + break; case PTP_PF_PHYSYNC: if (chan != 0) return -EINVAL; diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h index 0d8ff3f..2a5ad1c 100644 --- a/include/linux/ptp_clock_kernel.h +++ b/include/linux/ptp_clock_kernel.h @@ -49,6 +49,7 @@ struct ptp_clock_request { * @n_alarm: The number of programmable alarms. * @n_ext_ts: The number of external time stamp channels. * @n_per_out: The number of programmable periodic signals. + * @n_pps_chan: The number of programmable channles for pps output. * @n_pins: The number of programmable pins. * @pps: Indicates whether the clock supports a PPS callback. * @pin_config: Array of length 'n_pins'. If the number of @@ -99,6 +100,7 @@ struct ptp_clock_info { int n_alarm; int n_ext_ts; int n_per_out; + int n_pps_chan; int n_pins; int pps; struct ptp_pin_desc *pin_config; diff --git a/include/uapi/linux/ptp_clock.h b/include/uapi/linux/ptp_clock.h index f0b7bfe..57ba7e7 100644 --- a/include/uapi/linux/ptp_clock.h +++ b/include/uapi/linux/ptp_clock.h @@ -86,6 +86,7 @@ enum ptp_pin_function { PTP_PF_EXTTS, PTP_PF_PEROUT, PTP_PF_PHYSYNC, + PTP_PF_PPS, }; struct ptp_pin_desc { -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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