Keypad Driver: The scenario is interfacing OMAP 3530 with PMIC TPS65930 which has keypad controller which can only be accessed by I2C1 of OMAP.

ketan kowticwar

Other Parts Discussed in Thread: TPS65930

Driver gets loaded properly and in software scanning mode it is able to scan properly the row and column value of the key pressed. The issue is just after loading the driver when a keypad key is pressed it throws an error.

The error message:

[ 148.992095] i2c_omap i2c_omap.1: controller timed out
[ 149.007690] twl4030: I2C error -110 reading PIH ISR

Gets displayed continuously this error message

This happens only for the first time and when I unload and load the driver again the error vanishes. It just happens for the first time. I tried masking M_IRQ_56 I2C1_IRQ I2C module 1 which even didn't help.

PIH ISR is geeting generated from PMIC TPS65930

over 10 years ago

0 Titusrathinaraj Stalin over 10 years ago

TI__Guru** 116100 points

Have you build and used the keypad driver as inbuilt with kernel image ?

0 ketan kowticwar over 10 years ago in reply to Titusrathinaraj Stalin

Prodigy 20 points

I have build it as a loadable module.

PMIC TPS65930 is where the issue is.

so here is the issue I load the driver nothing happens and when a key is pressed an interrupt is generated INT1 which goes to the PIH block in PMIC keypad controller and it is where we are not able to mask the interrupt as it passes on to the OMAP processor.

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Keypad Driver: The scenario is interfacing OMAP 3530 with PMIC TPS65930 which has keypad controller which can only be accessed by I2C1 of OMAP.

PMIC TPS65930 is where the issue is.