linux-kernel - [PATCH V3 1/2] Documentation: devices.txt: Update ttyUL major number allocation details

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Message-ID: <20231116072915.3338387-2-manikanta.guntupalli@amd.com>
Date:   Thu, 16 Nov 2023 12:59:14 +0530
From:   Manikanta Guntupalli <manikanta.guntupalli@....com>
To:     <git@....com>, <michal.simek@....com>, <jacmet@...site.dk>,
        <gregkh@...uxfoundation.org>, <jirislaby@...nel.org>,
        <linux-serial@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <corbet@....net>, <christophe.leroy@...roup.eu>,
        <rdunlap@...radead.org>, <airlied@...hat.com>,
        <ogabbay@...nel.org>, <linux-doc@...r.kernel.org>
CC:     <radhey.shyam.pandey@....com>, <srinivas.goud@....com>,
        <shubhrajyoti.datta@....com>, <manion05gk@...il.com>,
        Manikanta Guntupalli <manikanta.guntupalli@....com>
Subject: [PATCH V3 1/2] Documentation: devices.txt: Update ttyUL major number allocation details

Describe when uartlite driver uses static/dynamic allocation for major
number based on maximum number of uartlite serial ports.

Signed-off-by: Manikanta Guntupalli <manikanta.guntupalli@....com>
---
Changes for V2:
This patch introduced in V2.
Changes for V3:
Fix typo.
Move description to above of ttyUL.
---
 Documentation/admin-guide/devices.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt
index 839054923530..ae7431e317ad 100644
--- a/Documentation/admin-guide/devices.txt
+++ b/Documentation/admin-guide/devices.txt
@@ -2704,6 +2704,9 @@
 		    ...
 		 185 = /dev/ttyNX15		Hilscher netX serial port 15
 		 186 = /dev/ttyJ0		JTAG1 DCC protocol based serial port emulation
+
+		 If maximum number of uartlite serial ports are more than 4, then driver uses
+		 dynamic allocation instead of static allocation for major number.
 		 187 = /dev/ttyUL0		Xilinx uartlite - port 0
 		    ...
 		 190 = /dev/ttyUL3		Xilinx uartlite - port 3
-- 
2.25.1