diff options
| author | Shimoda, Yoshihiro <yoshihiro.shimoda.uh@renesas.com> | 2012-04-12 12:19:21 +0200 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2012-04-12 12:19:21 +0200 |
| commit | a4e02f6d83d4fcdb13bcaba76878fc5ea0da9911 (patch) | |
| tree | 03fa3cfb50f700049f4389b642cd1e232ea3ab89 /drivers/tty | |
| parent | MAINTAINERS: Update git URL for SH. (diff) | |
| download | linux-a4e02f6d83d4fcdb13bcaba76878fc5ea0da9911.tar.xz linux-a4e02f6d83d4fcdb13bcaba76878fc5ea0da9911.zip | |
serial: sh-sci: Update break_ctl handling for all SCSPTR-capable regtypes.
This updates the earlier break_ctl support regardless of regtype so long
as the requisite SCSPTR exists. This is the same approach used by
sci_init_pins() for providing a generic solution now that we're able to
detect register capabilities on a per-port basis.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 3e471fc12991..be31d85a50e3 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -1565,31 +1565,31 @@ static void sci_enable_ms(struct uart_port *port) static void sci_break_ctl(struct uart_port *port, int break_state) { struct sci_port *s = to_sci_port(port); + struct plat_sci_reg *reg = sci_regmap[s->cfg->regtype] + SCSPTR; unsigned short scscr, scsptr; - switch (s->cfg->regtype) { - case SCIx_SH4_SCIF_REGTYPE: - scsptr = serial_port_in(port, SCSPTR); - scscr = serial_port_in(port, SCSCR); - - if (break_state == -1) { - scsptr = (scsptr | SCSPTR_SPB2IO) & ~SCSPTR_SPB2DT; - scscr &= ~SCSCR_TE; - } else { - scsptr = (scsptr | SCSPTR_SPB2DT) & ~SCSPTR_SPB2IO; - scscr |= SCSCR_TE; - } - - serial_port_out(port, SCSPTR, scsptr); - serial_port_out(port, SCSCR, scscr); - break; - default: + /* check wheter the port has SCSPTR */ + if (!reg->size) { /* * Not supported by hardware. Most parts couple break and rx * interrupts together, with break detection always enabled. */ - break; + return; } + + scsptr = serial_port_in(port, SCSPTR); + scscr = serial_port_in(port, SCSCR); + + if (break_state == -1) { + scsptr = (scsptr | SCSPTR_SPB2IO) & ~SCSPTR_SPB2DT; + scscr &= ~SCSCR_TE; + } else { + scsptr = (scsptr | SCSPTR_SPB2DT) & ~SCSPTR_SPB2IO; + scscr |= SCSCR_TE; + } + + serial_port_out(port, SCSPTR, scsptr); + serial_port_out(port, SCSCR, scscr); } #ifdef CONFIG_SERIAL_SH_SCI_DMA |