linux-kernel - [PATCH 32/41] drivers: tty: serial: 21285: define's for address/size, use mapsize field

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Date:   Sat, 27 Apr 2019 14:52:13 +0200
From:   "Enrico Weigelt, metux IT consult" <info@...ux.net>
To:     linux-kernel@...r.kernel.org
Cc:     gregkh@...uxfoundation.org, andrew@...id.au,
        andriy.shevchenko@...ux.intel.com, macro@...ux-mips.org,
        vz@...ia.com, slemieux.tyco@...il.com, khilman@...libre.com,
        liviu.dudau@....com, sudeep.holla@....com,
        lorenzo.pieralisi@....com, davem@...emloft.net, jacmet@...site.dk,
        linux@...sktech.co.nz, matthias.bgg@...il.com,
        linux-mips@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-ia64@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        linuxppc-dev@...ts.ozlabs.org, sparclinux@...r.kernel.org
Subject: [PATCH 32/41] drivers: tty: serial: 21285: define's for address/size, use mapsize field

Instead of hardcoding raw numbers, add define's for the mmio address/size.
Also fill the mapsize field and use it on mem request/release calls, for
more consistency and allowing generic helpers to be used later.

Signed-off-by: Enrico Weigelt <info@...ux.net>
---
 drivers/tty/serial/21285.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/21285.c b/drivers/tty/serial/21285.c
index 32b3acf..90684cd 100644
--- a/drivers/tty/serial/21285.c
+++ b/drivers/tty/serial/21285.c
@@ -27,6 +27,9 @@
 #define SERIAL_21285_MAJOR	204
 #define SERIAL_21285_MINOR	4
 
+#define SERIAL_21285_ADDRESS	0x42000160
+#define SERIAL_21285_SIZE	32
+
 #define RXSTAT_DUMMY_READ	0x80000000
 #define RXSTAT_FRAME		(1 << 0)
 #define RXSTAT_PARITY		(1 << 1)
@@ -305,12 +308,14 @@ static const char *serial21285_type(struct uart_port *port)
 
 static void serial21285_release_port(struct uart_port *port)
 {
-	release_mem_region(port->mapbase, 32);
+	release_mem_region(port->mapbase, port->mapsize);
 }
 
 static int serial21285_request_port(struct uart_port *port)
 {
-	return request_mem_region(port->mapbase, 32, serial21285_name)
+	return request_mem_region(port->mapbase,
+				  port->mapsize,
+				  serial21285_name)
 			 != NULL ? 0 : -EBUSY;
 }
 
@@ -354,7 +359,8 @@ static int serial21285_verify_port(struct uart_port *port, struct serial_struct
 };
 
 static struct uart_port serial21285_port = {
-	.mapbase	= 0x42000160,
+	.mapbase	= SERIAL_21285_BASE,
+	.mapsize	= SERIAL_21285_SIZE,
 	.iotype		= UPIO_MEM,
 	.irq		= 0,
 	.fifosize	= 16,
-- 
1.9.1