[PATCH 05/25] serial: sh-sci: Drop unused frame_len parameter for sci_baud_calc_hscif()

Geert Uytterhoeven
2015-11-19T18:42:12Z

As F is assumed to be zero in the receive margin formula, frame_len is
not used. Remove it, together with the sci_baud_calc_frame_len() helper
function.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
drivers/tty/serial/sh-sci.c | 24 +++---------------------
1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 676f9d1354943a1b..7c7dfbce54ed9c19 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1866,26 +1866,9 @@ static unsigned int sci_scbrr_calc(struct sci_port *s, unsigned int bps,
return DIV_ROUND_CLOSEST(freq, s->sampling_rate * bps) - 1;
}

-/* calculate frame length from SMR */
-static int sci_baud_calc_frame_len(unsigned int smr_val)
-{
- int len = 10;
-
- if (smr_val & SCSMR_CHR)
- len--;
- if (smr_val & SCSMR_PE)
- len++;
- if (smr_val & SCSMR_STOP)
- len++;
-
- return len;
-}
-
-
/* calculate sample rate, BRR, and clock select for HSCIF */
-static void sci_baud_calc_hscif(unsigned int bps, unsigned long freq,
- int *brr, unsigned int *srr,
- unsigned int *cks, int frame_len)
+static void sci_baud_calc_hscif(unsigned int bps, unsigned long freq, int *brr,
+ unsigned int *srr, unsigned int *cks)
{
int sr, c, br, err, recv_margin;
int min_err = 1000; /* 100% */
@@ -1987,9 +1970,8 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
baud = uart_get_baud_rate(port, termios, old, 0, max_baud);
if (likely(baud && port->uartclk)) {
if (s->cfg->type == PORT_HSCIF) {
- int frame_len = sci_baud_calc_frame_len(smr_val);
sci_baud_calc_hscif(baud, port->uartclk, &t, &srr,
- &cks, frame_len);
+ &cks);
} else {
t = sci_scbrr_calc(s, baud, port->uartclk);
for (cks = 0; t >= 256 && cks <= 3; cks++)
--
1.9.1