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serial: sh-sci: Move overrun_bit and error_mask fields out of pdata 

None of the fields is ever set by board code, and both of them are set
in the driver at probe time. Move them out of struct plat_sci_port to
struct sci_port.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
wifi-calibration
Laurent Pinchart 2013-12-06 10:59:17 +01:00 committed by Simon Horman
parent 1fcc91a607
commit 3ae988d97b
3 changed files with 24 additions and 31 deletions
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50
drivers/tty/serial/sh-sci.c
View File

@ -64,6 +64,9 @@ struct sci_port {
/* Platform configuration */
struct plat_sci_port *cfg;
int overrun_bit;
unsigned int error_mask;
/* Break timer */
struct timer_list break_timer;
@ -760,19 +763,15 @@ static int sci_handle_errors(struct uart_port *port)
struct tty_port *tport = &port->state->port;
struct sci_port *s = to_sci_port(port);
/*
* Handle overruns, if supported.
*/
if (s->cfg->overrun_bit != SCIx_NOT_SUPPORTED) {
if (status & (1 << s->cfg->overrun_bit)) {
port->icount.overrun++;
/* Handle overruns */
if (status & (1 << s->overrun_bit)) {
port->icount.overrun++;
/* overrun error */
if (tty_insert_flip_char(tport, 0, TTY_OVERRUN))
copied++;
/* overrun error */
if (tty_insert_flip_char(tport, 0, TTY_OVERRUN))
copied++;
dev_notice(port->dev, "overrun error");
}
dev_notice(port->dev, "overrun error");
}
if (status & SCxSR_FER(port)) {
@ -834,7 +833,7 @@ static int sci_handle_fifo_overrun(struct uart_port *port)
if (!reg->size)
return 0;
if ((serial_port_in(port, SCLSR) & (1 << s->cfg->overrun_bit))) {
if ((serial_port_in(port, SCLSR) & (1 << s->overrun_bit))) {
serial_port_out(port, SCLSR, 0);
port->icount.overrun++;
@ -2253,28 +2252,25 @@ static int sci_init_single(struct platform_device *dev,
/*
* Establish some sensible defaults for the error detection.
*/
if (!p->error_mask)
p->error_mask = (p->type == PORT_SCI) ?
sci_port->error_mask = (p->type == PORT_SCI) ?
SCI_DEFAULT_ERROR_MASK : SCIF_DEFAULT_ERROR_MASK;
/*
* Establish sensible defaults for the overrun detection, unless
* the part has explicitly disabled support for it.
*/
if (p->overrun_bit != SCIx_NOT_SUPPORTED) {
if (p->type == PORT_SCI)
p->overrun_bit = 5;
else if (p->scbrr_algo_id == SCBRR_ALGO_4)
p->overrun_bit = 9;
else
p->overrun_bit = 0;
if (p->type == PORT_SCI)
sci_port->overrun_bit = 5;
else if (p->scbrr_algo_id == SCBRR_ALGO_4)
sci_port->overrun_bit = 9;
else
sci_port->overrun_bit = 0;
/*
* Make the error mask inclusive of overrun detection, if
* supported.
*/
p->error_mask |= (1 << p->overrun_bit);
}
/*
* Make the error mask inclusive of overrun detection, if
* supported.
*/
sci_port->error_mask |= 1 << sci_port->overrun_bit;
port->type = p->type;
port->flags = UPF_FIXED_PORT | p->flags;

2
drivers/tty/serial/sh-sci.h
View File

@ -9,7 +9,7 @@
#define SCxSR_PER(port) (((port)->type == PORT_SCI) ? SCI_PER : SCIF_PER)
#define SCxSR_BRK(port) (((port)->type == PORT_SCI) ? 0x00 : SCIF_BRK)
#define SCxSR_ERRORS(port) (to_sci_port(port)->cfg->error_mask)
#define SCxSR_ERRORS(port) (to_sci_port(port)->error_mask)
#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
defined(CONFIG_CPU_SUBTYPE_SH7720) || \

3
include/linux/serial_sci.h
View File

@ -152,9 +152,6 @@ struct plat_sci_port {
/*
* Platform overrides if necessary, defaults otherwise.
*/
int overrun_bit;
unsigned int error_mask;
int port_reg;
unsigned char regshift;
unsigned char regtype;