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32 lines
1.0 KiB
Diff
32 lines
1.0 KiB
Diff
Index: linux-2.6.21.7/drivers/serial/pxa.c
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===================================================================
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--- linux-2.6.21.7.orig/drivers/serial/pxa.c
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+++ linux-2.6.21.7/drivers/serial/pxa.c
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@@ -41,6 +41,7 @@
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#include <linux/platform_device.h>
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#include <linux/tty.h>
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#include <linux/tty_flip.h>
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+#include <linux/serial.h>
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#include <linux/serial_core.h>
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#include <asm/io.h>
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@@ -577,8 +578,16 @@ static void serial_pxa_config_port(struc
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static int
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serial_pxa_verify_port(struct uart_port *port, struct serial_struct *ser)
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{
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- /* we don't want the core code to modify any port params */
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- return -EINVAL;
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+ struct uart_pxa_port *up = (struct uart_pxa_port *)port;
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+ int ret = 0;
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+
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+ if (up->port.uartclk / 16 != ser->baud_base)
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+ ret = -EINVAL;
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+ else if (((up->port.line & 1) == 0) && ser->baud_base > 230400) /* Max baud rate for STUART and FFUART */
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+ ret = -EINVAL;
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+ else if (((up->port.line & 1) != 0) && ser->baud_base > 921600) /* Max baud rate for HWUART and BTUART */
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+ ret = -EINVAL;
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+ return ret;
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}
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static const char *
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