From: Jonathan Lemon <jonathan.lemon@gmail.com>
Date: Mon, 28 Jun 2021 18:25:33 +0000 (-0700)
Subject: ptp: Set lookup cookie when creating a PTP PPS source.
X-Git-Tag: howlett/maple/20220722_2~2864^2~6
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=8602e40fc8132383298f304ae060d80f210be23c;p=users%2Fjedix%2Flinux-maple.git

ptp: Set lookup cookie when creating a PTP PPS source.

When creating a PTP device, the configuration block allows
creation of an associated PPS device.  However, there isn't
any way to associate the two devices after creation.

Set the PPS cookie, so pps_lookup_dev(ptp) performs correctly.

Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c
index 841d8900504d..a23a37a4d5dc 100644
--- a/drivers/ptp/ptp_clock.c
+++ b/drivers/ptp/ptp_clock.c
@@ -218,6 +218,7 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
 			pr_err("failed to create ptp aux_worker %d\n", err);
 			goto kworker_err;
 		}
+		ptp->pps_source->lookup_cookie = ptp;
 	}
 
 	err = ptp_populate_pin_groups(ptp);