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[SERIAL] amba-pl010: allow platforms to specify modem control method

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The amba-pl010 hardware does not provide RTS and DTR control lines; it
is expected that these will be implemented using GPIO.  Allow platforms
to supply a function to implement manipulation of modem control lines.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2006-03-26 23:13:39 +01:00
committed by Russell King
parent 335bd9dff3
commit fbb18a277a
3 changed files with 119 additions and 93 deletions
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6
include/linux/amba/serial.h
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@@ -158,4 +158,10 @@
#define UART01x_RSR_ANY (UART01x_RSR_OE|UART01x_RSR_BE|UART01x_RSR_PE|UART01x_RSR_FE)
#define UART01x_FR_MODEM_ANY (UART01x_FR_DCD|UART01x_FR_DSR|UART01x_FR_CTS)
#ifndef __ASSEMBLY__
struct amba_pl010_data {
void (*set_mctrl)(struct amba_device *dev, void __iomem *base, unsigned int mctrl);
};
#endif
#endif