linux-kernel - [PATCH] Documentation: devices.txt: reconcile serial/ucc

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Message-ID: <20230724063341.28198-1-rdunlap@infradead.org>
Date:   Sun, 23 Jul 2023 23:33:41 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Timur Tabi <timur@...nel.org>,
        Kumar Gala <galak@...nel.crashing.org>,
        linuxppc-dev@...ts.ozlabs.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        linux-serial@...r.kernel.org, Jonathan Corbet <corbet@....net>,
        linux-doc@...r.kernel.org
Subject: [PATCH] Documentation: devices.txt: reconcile serial/ucc_uart minor numers

Reconcile devices.txt with serial/ucc_uart.c regarding device number
assignments. ucc_uart.c supports 4 ports and uses minor devnums
46-49, so update devices.txt with that info.
Then update ucc_uart.c's reference to the location of the devices.txt
list in the kernel source tree.

Fixes: d7584ed2b994 ("[POWERPC] qe-uart: add support for Freescale QUICCEngine UART")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Timur Tabi <timur@...nel.org>
Cc: Kumar Gala <galak@...nel.crashing.org>
Cc: linuxppc-dev@...ts.ozlabs.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jiri Slaby <jirislaby@...nel.org>
Cc: linux-serial@...r.kernel.org
Cc: Jonathan Corbet <corbet@....net>
Cc: linux-doc@...r.kernel.org
---
 Documentation/admin-guide/devices.txt |    2 +-
 drivers/tty/serial/ucc_uart.c         |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff -- a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -59,7 +59,7 @@ static int firmware_loaded;
 /* #define LOOPBACK */
 
 /* The major and minor device numbers are defined in
- * http://www.lanana.org/docs/device-list/devices-2.6+.txt.  For the QE
+ * Documentation/admin-guide/devices.txt.  For the QE
  * UART, we have major number 204 and minor numbers 46 - 49, which are the
  * same as for the CPM2.  This decision was made because no Freescale part
  * has both a CPM and a QE.
diff -- a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt
--- a/Documentation/admin-guide/devices.txt
+++ b/Documentation/admin-guide/devices.txt
@@ -2691,7 +2691,7 @@
 		 45 = /dev/ttyMM1		Marvell MPSC - port 1 (obsolete unused)
 		 46 = /dev/ttyCPM0		PPC CPM (SCC or SMC) - port 0
 		    ...
-		 47 = /dev/ttyCPM5		PPC CPM (SCC or SMC) - port 5
+		 49 = /dev/ttyCPM5		PPC CPM (SCC or SMC) - port 3
 		 50 = /dev/ttyIOC0		Altix serial card
 		    ...
 		 81 = /dev/ttyIOC31		Altix serial card