[U-Boot] [PATCH 05/17] drivers: usb: musb: adopt musb backend driver to driver model

Marek Vasut marex at denx.de
Mon Feb 29 14:34:41 CET 2016


On 02/29/2016 02:26 PM, Mugunthan V N wrote:
> On Monday 29 February 2016 05:34 PM, Marek Vasut wrote:
>> On 02/29/2016 04:44 AM, Mugunthan V N wrote:
>>> Currently all backend driver ops uses hard coded physical
>>> address, so to adopt the driver to DM, add device pointer to ops
>>> call backs so that drivers that drivers can get physical
>>> addresses from the usb driver priv/plat data.
>>>
>>> Signed-off-by: Mugunthan V N <mugunthanvnm at ti.com>
>>> ---
>>
>> [...]
>>
>>> @@ -704,8 +719,13 @@ static int dsps_resume(struct device *dev)
>>>  	struct omap_musb_board_data *data = plat->board_data;
>>>  
>>>  	/* Start the on-chip PHY and its PLL. */
>>> +#ifndef CONFIG_DM_USB
>>>  	if (data->set_phy_power)
>>>  		data->set_phy_power(1);
>>> +#else
>>> +	if (data->set_phy_power)
>>> +		data->set_phy_power(data->dev, 1);
>>
>> Would it be possible to avoid adding this sea of ifdefs into the driver?
>>
> 
> May be introducing a void pointer and pass it back in ops callback can
> avoid ifdefs. For non DM mode, it will be holding NULL pointer and for
> DM mode it will be holding a dev pointer. If its ok, I can fix in v2.

That looks a bit more sensible, yes. I am worried about problems with
dereferencing the data->dev pointer though. But let's see.

-- 
Best regards,
Marek Vasut


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