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ARM: OMAP: Fix i2c init for twl4030
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Looks like 2600 kHz rate does not work reliably on 2430,
so just use the 100 kHz rate.

Otherwise the system often fails to boot properly with:

omap_i2c omap_i2c.2: timeout waiting for bus ready
omap_i2c omap_i2c.2: timeout waiting for bus ready
twl: i2c_write failed to transfer all messages
omap_i2c omap_i2c.2: timeout waiting for bus ready
twl: i2c_write failed to transfer all messages
omap_i2c omap_i2c.2: timeout waiting for bus ready
twl: i2c_write failed to transfer all messages
twl: clock init err [-110]
omap_i2c omap_i2c.2: timeout waiting for bus ready
twl: i2c_write failed to transfer all messages
TWL4030 Unable to unlock IDCODE registers --110

Signed-off-by: Tony Lindgren <tony@atomide.com>
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Tony Lindgren committed Sep 30, 2011
1 parent 3696d30 commit bfd46a5
Showing 1 changed file with 2 additions and 1 deletion.
3 changes: 2 additions & 1 deletion arch/arm/mach-omap2/board-2430sdp.c
Original file line number Diff line number Diff line change
Expand Up @@ -193,7 +193,8 @@ static int __init omap2430_i2c_init(void)
{
omap_register_i2c_bus(1, 100, sdp2430_i2c1_boardinfo,
ARRAY_SIZE(sdp2430_i2c1_boardinfo));
omap2_pmic_init("twl4030", &sdp2430_twldata);
omap_pmic_init(2, 100, "twl4030", INT_24XX_SYS_NIRQ,
&sdp2430_twldata);
return 0;
}

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