Re: 10-bit address support in i2c-omap and i2c-davinci

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Adding linux-omap and linux-davinci lists

Jean Delvare <khali@xxxxxxxxxxxx> writes:

> Both bus drivers i2c-omap and i2c-davinci apparently handle 10-bit addresses:
>
> (i2c-omap.c)
> 	if (msg->flags & I2C_M_TEN)
> 		w |= OMAP_I2C_CON_XA;
>
> (i2c-davinci.c)
> 	/* if the slave address is ten bit address, enable XA bit */
> 	if (msg->flags & I2C_M_TEN)
> 		flag |= DAVINCI_I2C_MDR_XA;
>
> However neither driver declares functionality flag I2C_FUNC_10BIT_ADDR,
> so chip drivers would normally refuse to bind to these buses. If 10-bit
> address support is incomplete or broken then it should be removed
> completely. If it works then these drivers should declare so by adding
> I2C_FUNC_10BIT_ADDR to the functionality flags they return.
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