diff options
| author |   Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2013-12-06 10:59:12 +0100 |
|---|---|---|
| committer |   Simon Horman <horms+renesas@verge.net.au> | 2013-12-24 11:17:33 +0900 |
| commit | 6557b1f69ea0961efde7ab33bfe0cb7e3bfed54e (patch) | |
| tree | 6b80f503c2968778ed6e0d7e20a1a7e34db1de50 /include/linux/serial_sci.h | |
| parent | serial: sh-sci: Remove baud rate calculation algorithm 5 (diff) | |
| download | linux-dev-6557b1f69ea0961efde7ab33bfe0cb7e3bfed54e.tar.xz linux-dev-6557b1f69ea0961efde7ab33bfe0cb7e3bfed54e.zip | |
serial: sh-sci: Simplify baud rate calculation algorithms
Rewrite the baud rate register value calculations in easier to read
forms. The computed value isn't modified.
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>
Diffstat (limited to 'include/linux/serial_sci.h')
| -rw-r--r-- | include/linux/serial_sci.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h index babc5fe070b9..12cf50c1c047 100644 --- a/include/linux/serial_sci.h +++ b/include/linux/serial_sci.h @@ -11,10 +11,10 @@ #define SCIx_NOT_SUPPORTED (-1) enum { - SCBRR_ALGO_1, /* ((clk + 16 * bps) / (16 * bps) - 1) */ - SCBRR_ALGO_2, /* ((clk + 16 * bps) / (32 * bps) - 1) */ - SCBRR_ALGO_3, /* (((clk * 2) + 16 * bps) / (16 * bps) - 1) */ - SCBRR_ALGO_4, /* (((clk * 2) + 16 * bps) / (32 * bps) - 1) */ + 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 */ }; |