diff options
| author | Biju Das <biju.das.jz@bp.renesas.com> | 2025-11-29 16:43:10 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-17 15:07:07 +0100 |
| commit | 5632bda5e848c4592eefa4451092beb4ce29ab76 (patch) | |
| tree | 9114f6b9e2b268e2475778f87e62aeeaa319de7c /drivers/tty | |
| parent | 83c405ec3a340a334c46bb59b07e5799f6d205a4 (diff) | |
serial: sh-sci: Make sci_scbrr_calc() public
Make the function sci_scbrr_calc() public for code reuse to support RZ/G3E
RSCI IP.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://patch.msgid.link/20251129164325.209213-15-biju.das.jz@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/sh-sci-common.h | 3 | ||||
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 6 |
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/tty/serial/sh-sci-common.h b/drivers/tty/serial/sh-sci-common.h index 5d30771278b4..976e394ab968 100644 --- a/drivers/tty/serial/sh-sci-common.h +++ b/drivers/tty/serial/sh-sci-common.h @@ -169,6 +169,9 @@ void sci_port_enable(struct sci_port *sci_port); int sci_startup(struct uart_port *port); void sci_shutdown(struct uart_port *port); +int sci_scbrr_calc(struct sci_port *s, unsigned int bps, unsigned int *brr, + unsigned int *srr, unsigned int *cks); + #define min_sr(_port) ffs((_port)->sampling_rate_mask) #define max_sr(_port) fls((_port)->sampling_rate_mask) diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 5d7e78f95c70..e2ba752f9c16 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -2573,9 +2573,8 @@ static int sci_brg_calc(struct sci_port *s, unsigned int bps, } /* calculate sample rate, BRR, and clock select */ -static int sci_scbrr_calc(struct sci_port *s, unsigned int bps, - unsigned int *brr, unsigned int *srr, - unsigned int *cks) +int sci_scbrr_calc(struct sci_port *s, unsigned int bps, unsigned int *brr, + unsigned int *srr, unsigned int *cks) { unsigned long freq = s->clk_rates[SCI_FCK]; unsigned int sr, br, prediv, scrate, c; @@ -2639,6 +2638,7 @@ found: min_err, *brr, *srr + 1, *cks); return min_err; } +EXPORT_SYMBOL_NS_GPL(sci_scbrr_calc, "SH_SCI"); static void sci_reset(struct uart_port *port) { |