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omap-serial: Use default clock speed (48Mhz) if not specified

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Use a default clock speed of 48Mhz, instead of ending up with 0,
if platforms fail to specify a valid clock speed.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Rajendra Nayak 2011-12-14 17:25:44 +05:30 committed by Tony Lindgren
parent ba77433da6
commit 8fe789dc37
1 changed files with 7 additions and 0 deletions
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7
drivers/tty/serial/omap-serial.c
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@ -43,6 +43,8 @@
#include <plat/dmtimer.h>
#include <plat/omap-serial.h>
#define DEFAULT_CLK_SPEED 48000000 /* 48Mhz*/
static struct uart_omap_port *ui[OMAP_MAX_HSUART_PORTS];
/* Forward declaration of functions */
@ -1387,6 +1389,11 @@ static int serial_omap_probe(struct platform_device *pdev)
up->port.flags = omap_up_info->flags;
up->port.uartclk = omap_up_info->uartclk;
if (!up->port.uartclk) {
up->port.uartclk = DEFAULT_CLK_SPEED;
dev_warn(&pdev->dev, "No clock speed specified: using default:"
"%d\n", DEFAULT_CLK_SPEED);
}
up->uart_dma.uart_base = mem->start;
up->errata = omap_up_info->errata;