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Subject[PATCH v2 net-next 2/3] ptp: ptp_clockmatrix: Add alignment of 1 PPS to idtcm_perout_enable.
Date
From: Vincent Cheng <vincent.cheng.xh@renesas.com>

When enabling output using PTP_CLK_REQ_PEROUT, need to align the output
clock to the internal 1 PPS clock.

Signed-off-by: Vincent Cheng <vincent.cheng.xh@renesas.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
---
drivers/ptp/ptp_clockmatrix.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/ptp/ptp_clockmatrix.c b/drivers/ptp/ptp_clockmatrix.c
index 3de8411..a83ba4b 100644
--- a/drivers/ptp/ptp_clockmatrix.c
+++ b/drivers/ptp/ptp_clockmatrix.c
@@ -1401,13 +1401,23 @@ static int idtcm_perout_enable(struct idtcm_channel *channel,
bool enable,
struct ptp_perout_request *perout)
{
+ struct idtcm *idtcm = channel->idtcm;
unsigned int flags = perout->flags;
+ struct timespec64 ts = {0, 0};
+ int err;

if (flags == PEROUT_ENABLE_OUTPUT_MASK)
- return idtcm_output_mask_enable(channel, enable);
+ err = idtcm_output_mask_enable(channel, enable);
+ else
+ err = idtcm_output_enable(channel, enable, perout->index);
+
+ if (err) {
+ dev_err(&idtcm->client->dev, "Unable to set output enable");
+ return err;
+ }

- /* Enable/disable individual output instead */
- return idtcm_output_enable(channel, enable, perout->index);
+ /* Align output to internal 1 PPS */
+ return _idtcm_settime(channel, &ts, SCSR_TOD_WR_TYPE_SEL_DELTA_PLUS);
}

static int idtcm_get_pll_mode(struct idtcm_channel *channel,
--
2.7.4
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