[PATCH] ARM: ux500: bump i2c bus speed to 400kHz

Linus Walleij linus.walleij at stericsson.com
Sun Jun 17 13:57:17 EDT 2012


From: Linus Walleij <linus.walleij at linaro.org>

Some recent discussion revealed inconsistency in the board file
for the MOP500 family. The board can very well do 400kHz on
the I2C busses, so make it do that.

Cc: Srinidhi Kasagar <srinidhi.kasagar at stericsson.com>
Cc: Lee Jones <lee.jones at linaro.org>
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 9c74ac5..e441bd7 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -354,13 +354,13 @@ static struct nmk_i2c_controller u8500_i2c##id##_data = { \
 /*
  * The board uses 4 i2c controllers, initialize all of
  * them with slave data setup time of 250 ns,
- * Tx & Rx FIFO threshold values as 8 and standard
+ * Tx & Rx FIFO threshold values as 1 resp. 8 and fast
  * mode of operation
  */
-U8500_I2C_CONTROLLER(0, 0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);
-U8500_I2C_CONTROLLER(1, 0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);
-U8500_I2C_CONTROLLER(2,	0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);
-U8500_I2C_CONTROLLER(3,	0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);
+U8500_I2C_CONTROLLER(0, 0xe, 1, 8, 400000, 200, I2C_FREQ_MODE_FAST);
+U8500_I2C_CONTROLLER(1, 0xe, 1, 8, 400000, 200, I2C_FREQ_MODE_FAST);
+U8500_I2C_CONTROLLER(2,	0xe, 1, 8, 400000, 200, I2C_FREQ_MODE_FAST);
+U8500_I2C_CONTROLLER(3,	0xe, 1, 8, 400000, 200, I2C_FREQ_MODE_FAST);
 
 static void __init mop500_i2c_init(struct device *parent)
 {
-- 
1.7.9.2




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