----- Original Message -----
From: "Dominic Curran" <dcurran@xxxxxx>
To: <linux-omap@xxxxxxxxxxxxxxx>
Sent: Thursday, November 13, 2008 1:51 AM
Subject: [PATCH 1/3] [OMAPZOOM] Lower i2c speed on bus 1 for LDP.
Resending patch with more descriptive comment.
Lower i2c bus 1 speed to 400KHz for LDP.
At 2600KHz i2c reads from twl4030 keypad driver are returning
incorrect data. Reason unknown. Lowering bus speed as temporary
fix to get LDP keypad working.
Signed-off-by: Dominic Curran <dcurran@xxxxxx>
---
arch/arm/mach-omap2/board-ldp.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index d889ce8..b2e8c9c 100755
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -797,7 +797,7 @@ static struct i2c_board_info __initdata
ldp_i2c_boardinfo_2[] = {
static int __init omap_i2c_init(void)
{
- omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
+ omap_register_i2c_bus(1, 400, ldp_i2c_boardinfo,
ARRAY_SIZE(ldp_i2c_boardinfo));
Last time i checked we were getting few errors (returning incorrect values) even
at 400k , and no error at 100k.
Have you seen any at 400k?
omap_register_i2c_bus(2, 100, ldp_i2c_boardinfo_2,
ARRAY_SIZE(ldp_i2c_boardinfo_2));
--
1.5.4.1
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