Re: [PATCH v5 4/6] i2c: npcm: Modify the client address assignment

[Andy Shevchenko]

On Tue, Oct 01, 2024 at 02:28:53PM +0800, Tyrone Ting wrote:
> From: Tyrone Ting <kfting@xxxxxxxxxxx>
> 
> Store the client address earlier since it might get called in
> the i2c_recover_bus() logic flow at the early stage of
> npcm_i2c_master_xfer().

...

> +	/*
> +	 * Previously, the address was stored w/o left-shift by one bit and
> +	 * with that shift in the following call to npcm_i2c_master_start_xmit().
> +	 *
> +	 * Since there are cases that the i2c_recover_bus() gets called at the
> +	 * early stage of npcm_i2c_master_xfer(), the address is stored with
> +	 * the shift and used in the i2c_recover_bus().
> +	 *
> +	 * The address is stored from bit 1 to bit 7 in the register for
> +	 * sending the i2c address later so it's left-shifted by 1 bit.
> +	 */
> +	bus->dest_addr = slave_addr << 1;

I'm wondering if it's better to use i2c_8bit_addr_from_msg() here?

-- 
With Best Regards,
Andy Shevchenko