Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
[ARM] 3710/1: AT91 Serial: Use GPIO API
Patch from Andrew Victor
The AT91RM9200 errata work-around should be using the GPIO API and not
accessing the PIO registers directly.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
authored by Andrew Victor and committed by Russell King 20e65276 ca78f6ba
+3
-2
drivers/serial/at91_serial.c
+3
-2
drivers/serial/at91_serial.c
···
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#include <asm/mach/serial_at91.h>
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#include <asm/arch/board.h>
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#include <asm/arch/system.h>
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+
#include <asm/arch/gpio.h>
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#if defined(CONFIG_SERIAL_AT91_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
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#define SUPPORT_SYSRQ
···
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*/
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if (port->mapbase == AT91_BASE_US0) {
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if (mctrl & TIOCM_RTS)
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-
at91_sys_write(AT91_PIOA + PIO_CODR, AT91_PA21_RTS0);
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at91_set_gpio_value(AT91_PIN_PA21, 0);
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else
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at91_sys_write(AT91_PIOA + PIO_SODR, AT91_PA21_RTS0);
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at91_set_gpio_value(AT91_PIN_PA21, 1);
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}
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}
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