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Commit 6f95570e authored by Sonic Zhang's avatar Sonic Zhang Committed by Linus Torvalds
Browse files

Change hardware flow control from poll to interrupt driven 



Only the CTS bit is affected.

Signed-off-by: default avatarSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarAlan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 1dcb884c

arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h

+0 −26
Original line number Diff line number Diff line
@@ -167,29 +167,3 @@ struct bfin_serial_res bfin_serial_resource[] = { 
};



#define DRIVER_NAME "bfin-uart"
 


static void bfin_serial_hw_init(struct bfin_serial_port *uart)

{



#ifdef CONFIG_SERIAL_BFIN_UART0

	peripheral_request(P_UART0_TX, DRIVER_NAME);

	peripheral_request(P_UART0_RX, DRIVER_NAME);

#endif



#ifdef CONFIG_SERIAL_BFIN_UART1

	peripheral_request(P_UART1_TX, DRIVER_NAME);

	peripheral_request(P_UART1_RX, DRIVER_NAME);

#endif



#ifdef CONFIG_SERIAL_BFIN_CTSRTS

	if (uart->cts_pin >= 0) {

		gpio_request(uart->cts_pin, DRIVER_NAME);

		gpio_direction_input(uart->cts_pin);

	}



	if (uart->rts_pin >= 0) {

		gpio_request(uart->rts_pin, DRIVER_NAME);

		gpio_direction_output(uart->rts_pin, 0);

	}

#endif

}

arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h

+0 −20
Original line number Diff line number Diff line
@@ -142,23 +142,3 @@ struct bfin_serial_res bfin_serial_resource[] = { 
};



#define DRIVER_NAME "bfin-uart"
 


static void bfin_serial_hw_init(struct bfin_serial_port *uart)

{



#ifdef CONFIG_SERIAL_BFIN_UART0

	peripheral_request(P_UART0_TX, DRIVER_NAME);

	peripheral_request(P_UART0_RX, DRIVER_NAME);

#endif



#ifdef CONFIG_SERIAL_BFIN_CTSRTS

	if (uart->cts_pin >= 0) {

		gpio_request(uart->cts_pin, DRIVER_NAME);

		gpio_direction_input(uart->cts_pin);

	}

	if (uart->rts_pin >= 0) {

		gpio_request(uart->rts_pin, DRIVER_NAME);

		gpio_direction_output(uart->rts_pin, 0);

	}

#endif

}

arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h

+0 −27
Original line number Diff line number Diff line
@@ -99,7 +99,6 @@ struct bfin_serial_port { 
	struct work_struct	tx_dma_workqueue;

#endif

#ifdef CONFIG_SERIAL_BFIN_CTSRTS

	struct timer_list 	cts_timer;

	int		cts_pin;

	int 		rts_pin;

#endif
@@ -167,29 +166,3 @@ struct bfin_serial_res bfin_serial_resource[] = { 
};



#define DRIVER_NAME "bfin-uart"
 


static void bfin_serial_hw_init(struct bfin_serial_port *uart)

{



#ifdef CONFIG_SERIAL_BFIN_UART0

	peripheral_request(P_UART0_TX, DRIVER_NAME);

	peripheral_request(P_UART0_RX, DRIVER_NAME);

#endif



#ifdef CONFIG_SERIAL_BFIN_UART1

	peripheral_request(P_UART1_TX, DRIVER_NAME);

	peripheral_request(P_UART1_RX, DRIVER_NAME);

#endif



#ifdef CONFIG_SERIAL_BFIN_CTSRTS

	if (uart->cts_pin >= 0) {

		gpio_request(uart->cts_pin, DRIVER_NAME);

		gpio_direction_input(uart->cts_pin);

	}



	if (uart->rts_pin >= 0) {

		gpio_request(uart->rts_pin, DRIVER_NAME);

		gpio_direction_output(uart->rts_pin, 0);

	}

#endif

}

arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h

+0 −45
Original line number Diff line number Diff line
@@ -181,48 +181,3 @@ struct bfin_serial_res bfin_serial_resource[] = { 
};



#define DRIVER_NAME "bfin-uart"
 


static void bfin_serial_hw_init(struct bfin_serial_port *uart)

{

#ifdef CONFIG_SERIAL_BFIN_UART0

	peripheral_request(P_UART0_TX, DRIVER_NAME);

	peripheral_request(P_UART0_RX, DRIVER_NAME);

#endif



#ifdef CONFIG_SERIAL_BFIN_UART1

	peripheral_request(P_UART1_TX, DRIVER_NAME);

	peripheral_request(P_UART1_RX, DRIVER_NAME);



#ifdef CONFIG_BFIN_UART1_CTSRTS

	peripheral_request(P_UART1_RTS, DRIVER_NAME);

	peripheral_request(P_UART1_CTS, DRIVER_NAME);

#endif

#endif



#ifdef CONFIG_SERIAL_BFIN_UART2

	peripheral_request(P_UART2_TX, DRIVER_NAME);

	peripheral_request(P_UART2_RX, DRIVER_NAME);

#endif



#ifdef CONFIG_SERIAL_BFIN_UART3

	peripheral_request(P_UART3_TX, DRIVER_NAME);

	peripheral_request(P_UART3_RX, DRIVER_NAME);



#ifdef CONFIG_BFIN_UART3_CTSRTS

	peripheral_request(P_UART3_RTS, DRIVER_NAME);

	peripheral_request(P_UART3_CTS, DRIVER_NAME);

#endif

#endif

	SSYNC();

#ifdef CONFIG_SERIAL_BFIN_CTSRTS

	if (uart->cts_pin >= 0) {

		gpio_request(uart->cts_pin, DRIVER_NAME);

		gpio_direction_input(uart->cts_pin);

	}



	if (uart->rts_pin >= 0) {

		gpio_request(uart->rts_pin, DRIVER_NAME);

		gpio_direction_output(uart->rts_pin, 0);

	}

#endif

}

arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h

+0 −20
Original line number Diff line number Diff line
@@ -142,23 +142,3 @@ struct bfin_serial_res bfin_serial_resource[] = { 
};



#define DRIVER_NAME "bfin-uart"
 


static void bfin_serial_hw_init(struct bfin_serial_port *uart)

{



#ifdef CONFIG_SERIAL_BFIN_UART0

	peripheral_request(P_UART0_TX, DRIVER_NAME);

	peripheral_request(P_UART0_RX, DRIVER_NAME);

#endif



#ifdef CONFIG_SERIAL_BFIN_CTSRTS

	if (uart->cts_pin >= 0) {

		gpio_request(uart->cts_pin, DRIVER_NAME);

		gpio_direction_input(uart->cts_pin);

	}

	if (uart->rts_pin >= 0) {

		gpio_request(uart->rts_pin, DRIVER_NAME);

		gpio_direction_output(uart->rts_pin, 0);

	}

#endif

}