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From:   Charlie Johnston <charlie.johnston@ni.com>
To:     giometti@enneenne.com
Cc:     brenda.streiff@ni.com, linux-kernel@vger.kernel.org,
        Charlie Johnston <charlie.johnston@ni.com>
Subject: [PATCH v1] pps: Increase PPS_MAX_SOURCES value.
Date:   Mon, 12 Jun 2023 14:08:28 -0500
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For consistency with what others use for minors, this
change sets PPS_MAX_SOURCES to MINORMASK.

The PPS_MAX_SOURCES value is currently set to 16. In
some cases this was not sufficient for a system. For
example, a system with multiple (4+) PCIe cards each
with 4 PTP-capable ethernet interfaces could run out
of the available PPS major:minors if each interface
registers a PPS source.

Signed-off-by: Charlie Johnston <charlie.johnston@ni.com>
---
 include/uapi/linux/pps.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/pps.h b/include/uapi/linux/pps.h
index 009ebcd8ced5..0712c2e5a472 100644
--- a/include/uapi/linux/pps.h
+++ b/include/uapi/linux/pps.h
@@ -25,8 +25,8 @@
 
 #include <linux/types.h>
 
-#define PPS_VERSION		"5.3.6"
-#define PPS_MAX_SOURCES		16		/* should be enough... */
+#define PPS_VERSION			"5.3.6"
+#define PPS_MAX_SOURCES		MINORMASK
 
 /* Implementation note: the logical states ``assert'' and ``clear''
  * are implemented in terms of the chip register, i.e. ``assert''
-- 
2.41.0