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serial: sh-sci: Remove platform data scbrr_algo_id field

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The field isn't set by any board, remote it.

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>
This commit is contained in:
Laurent Pinchart 2013-12-06 10:59:51 +01:00 committed by Simon Horman
parent 20f4e33427
commit 878fbb9139
2 changed files with 5 additions and 31 deletions
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22
drivers/tty/serial/sh-sci.c
View File

@ -1757,17 +1757,6 @@ static unsigned int sci_scbrr_calc(struct sci_port *s, unsigned int bps,
if (s->sampling_rate)
return DIV_ROUND_CLOSEST(freq, s->sampling_rate * bps) - 1;
switch (s->cfg->scbrr_algo_id) {
case SCBRR_ALGO_1:
return freq / (16 * bps);
case SCBRR_ALGO_2:
return DIV_ROUND_CLOSEST(freq, 32 * bps) - 1;
case SCBRR_ALGO_3:
return freq / (8 * bps);
case SCBRR_ALGO_4:
return DIV_ROUND_CLOSEST(freq, 16 * bps) - 1;
}
/* Warn, but use a safe default */
WARN_ON(1);
@ -2176,17 +2165,12 @@ static int sci_init_single(struct platform_device *dev,
break;
}
/* Set the sampling rate if the baud rate calculation algorithm isn't
* specified.
*/
if (p->scbrr_algo_id == SCBRR_ALGO_NONE) {
/* SCIFA on sh7723 and sh7724 need a custom sampling rate that
* doesn't match the SoC datasheet, this should be investigated.
* Let platform data override the sampling rate for now.
/* SCIFA on sh7723 and sh7724 need a custom sampling rate that doesn't
* match the SoC datasheet, this should be investigated. Let platform
* data override the sampling rate for now.
*/
sci_port->sampling_rate = p->sampling_rate ? p->sampling_rate
: sampling_rate;
}
if (!early) {
sci_port->iclk = clk_get(&dev->dev, "sci_ick");

10
include/linux/serial_sci.h
View File

@ -10,15 +10,6 @@
#define SCIx_NOT_SUPPORTED (-1)
enum {
SCBRR_ALGO_NONE, /* Compute sampling rate in the driver */
SCBRR_ALGO_1, /* clk / (16 * bps) */
SCBRR_ALGO_2, /* DIV_ROUND_CLOSEST(clk, 32 * bps) - 1 */
SCBRR_ALGO_3, /* clk / (8 * bps) */
SCBRR_ALGO_4, /* DIV_ROUND_CLOSEST(clk, 16 * bps) - 1 */
SCBRR_ALGO_6, /* HSCIF variable sample rate algorithm */
};
#define SCSCR_TIE (1 << 7)
#define SCSCR_RIE (1 << 6)
#define SCSCR_TE (1 << 5)
@ -136,7 +127,6 @@ struct plat_sci_port {
unsigned long capabilities; /* Port features/capabilities */
unsigned int sampling_rate;
unsigned int scbrr_algo_id; /* SCBRR calculation algo */
unsigned int scscr; /* SCSCR initialization */
/*