[PATCH] ARM: S3C64XX: Raise the frequency of the second I2C bus on Cragganmore
Mark Brown
broonie at opensource.wolfsonmicro.com
Tue Sep 6 02:49:36 EDT 2011
The S3C I2C driver defaults to a rather low 66kHz, ask for 400kHz for
a bit of a speed boost.
Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
---
arch/arm/mach-s3c64xx/mach-crag6410.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index d484864..8415217 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -651,6 +651,11 @@ static struct i2c_board_info i2c_devs1[] __initdata = {
{ I2C_BOARD_INFO("wm1250-ev1", 0x27) },
};
+static struct s3c2410_platform_i2c i2c1_pdata = {
+ .frequency = 400000,
+ .bus_num = 1,
+};
+
static void __init crag6410_map_io(void)
{
s3c64xx_init_io(NULL, 0);
@@ -709,7 +714,7 @@ static void __init crag6410_machine_init(void)
s3c_sdhci2_set_platdata(&crag6410_hsmmc2_pdata);
s3c_i2c0_set_platdata(&i2c0_pdata);
- s3c_i2c1_set_platdata(NULL);
+ s3c_i2c1_set_platdata(&i2c1_pdata);
s3c_fb_set_platdata(&crag6410_lcd_pdata);
i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
--
1.7.5.4
More information about the linux-arm-kernel
mailing list