[PATCH 2/4] ARM: OMAP: Fix i2c init for twl4030

Tony Lindgren tony at atomide.com
Wed Sep 28 17:48:19 EDT 2011


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 at atomide.com>
---
 arch/arm/mach-omap2/board-2430sdp.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index 2028464..f79b7d2 100644
--- a/arch/arm/mach-omap2/board-2430sdp.c
+++ b/arch/arm/mach-omap2/board-2430sdp.c
@@ -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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