Re: [PATCH v4] i2c: exynos5: add High Speed I2C controller driver

Wolfram Sang
2013-02-01T19:29:32Z

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On Fri, Feb 01, 2013 at 09:24:44PM +0530, Naveen Krishna Chatradhi wrote:
> Adds support for High Speed I2C driver found in Exynos5 and later
> SoCs from Samsung. This driver currently supports Auto mode.
>
> Driver only supports Device Tree method.
> Note: Added debugfs support for registers view, not tested.
>
> Signed-off-by: Taekgyun Ko <taeggyun.ko@samsung.com>
> Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
> ---
> Help please,
>
> Usual reads and writes are happening. But, when i try doing
> i2cdetect -y 0 0x10 0x59; It throws me continous interrupts at 0x1a
> i2cdetect -y 0 0x50 0x64; It throws me continous interrupts at 0x63
>
> There are eeproms from 0x50 till 0x58
> wm8994 codec at 0x1a
>
> Kindly, can anyone explain this behaviour.

You select I2C_FUNC_SMBUS_EMUL, but make sure your hardware really
supports I2C_FUNC_SMBUS_QUICK. That would be my first guess. Also, which
eeprom do you have? Check its datasheet, some in deed use 8 addresses.

Regards,

Wolfram

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