diff options
author | Daniel Silverstone <dsilvers@simtec.co.uk> | 2009-03-13 09:53:46 -0400 |
---|---|---|
committer | Ben Dooks <ben-linux@fluff.org> | 2009-04-07 05:18:33 -0400 |
commit | c564e6ae6c5aa6e3995ff87ed4a32b4788ad5109 (patch) | |
tree | b773106104d9897d945709d3bff8a56ff6586da8 /arch/arm/mach-s3c2412 | |
parent | a192f7153bb33151f83440cd9c0442233a064bf1 (diff) |
i2c-s3c2410: Simplify bus frequency calculation
The platform data for the i2c-s3c2410 driver used to allow a min,
max and desired frequency for the I2C bus. This patch reduces it
to simply a desired frequency ceiling and corrects all the uses
of the platform data appropriately.
This means, for example, that on a system with a 66MHz fclk, a
request for 100KHz will achieve 65KHz which is safe and
acceptable, rather than 378KHz which it would have achieved
without this change.
Signed-off-by: Simtec Linux Team <linux@simtec.co.uk>
Signed-off-by: Daniel Silverstone <dsilvers@simtec.co.uk>
[ben-linux@fluff.org: tidy subject and description]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/mach-s3c2412')
-rw-r--r-- | arch/arm/mach-s3c2412/mach-jive.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm/mach-s3c2412/mach-jive.c b/arch/arm/mach-s3c2412/mach-jive.c index 72c266aee141..332bd3263eaf 100644 --- a/arch/arm/mach-s3c2412/mach-jive.c +++ b/arch/arm/mach-s3c2412/mach-jive.c | |||
@@ -453,8 +453,7 @@ static struct spi_board_info __initdata jive_spi_devs[] = { | |||
453 | /* I2C bus and device configuration. */ | 453 | /* I2C bus and device configuration. */ |
454 | 454 | ||
455 | static struct s3c2410_platform_i2c jive_i2c_cfg __initdata = { | 455 | static struct s3c2410_platform_i2c jive_i2c_cfg __initdata = { |
456 | .max_freq = 80 * 1000, | 456 | .frequency = 80 * 1000, |
457 | .bus_freq = 50 * 1000, | ||
458 | .flags = S3C_IICFLG_FILTER, | 457 | .flags = S3C_IICFLG_FILTER, |
459 | .sda_delay = 2, | 458 | .sda_delay = 2, |
460 | }; | 459 | }; |