linux-kernel - [PATCH] serial: copy UART properties of UPF_FIXED_TYPE ports provisioned using early_serial

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Date:	Mon, 26 Oct 2009 12:50:07 +0200
From:	Shmulik Ladkani <shmulik@...go.com>
To:	linux-serial@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] serial: copy UART properties of UPF_FIXED_TYPE ports provisioned
 using early_serial_setup

Augment the UPF_FIXED_TYPE logic, which currently applies to UART ports 
provisioned using platform_device_register.

The suggested patch applies same logic into 'serial8250_register_ports', 
making UART ports provisioned using early_serial_setup inherit their 
properties from the uart_config entry.

The patch applies to linux-2.6.32-rc5

Signed-off-by: Shmulik Ladkani <shmulik@...go.com>
---
diff -upr linux-2.6.32-rc5.clean/drivers/serial/8250.c 
linux-2.6.32-rc5/drivers/serial/8250.c
--- linux-2.6.32-rc5.clean/drivers/serial/8250.c	2009-10-16 
02:41:50.000000000 +0200
+++ linux-2.6.32-rc5/drivers/serial/8250.c	2009-10-26 11:36:09.000000000 
+0200
@@ -2704,6 +2704,14 @@ serial8250_register_ports(struct uart_dr
  		struct uart_8250_port *up = &serial8250_ports[i];

  		up->port.dev = dev;
+
+		if (up->port.flags & UPF_FIXED_TYPE) {
+			up->port.fifosize =
+				uart_config[up->port.type].fifo_size;
+			up->capabilities = uart_config[up->port.type].flags;
+			up->tx_loadsz = uart_config[up->port.type].tx_loadsz;
+		}
+
  		uart_add_one_port(drv, &up->port);
  	}
  }
-- 
Shmulik Ladkani        Jungo Ltd.
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