[PATCH net-next 2/2] ptp: ptp_clockmatrix: Add alignment of 1 PPS to idtcm_perout_enable.
From: <hidden>
Date: 2021-02-12 05:10:14
Also in:
lkml
Subsystem:
networking drivers, ptp hardware clock support, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Richard Cochran, Linus Torvalds
From: Vincent Cheng <redacted> 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 <redacted> --- 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 1918de5..ebe540e 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