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SubjectRe: [PATCH 3/3] usb: phy-generic: Add ULPI VBUS support
On Tuesday, December 03, 2013 04:15 PM, Heikki Krogerus wrote:
> On Mon, Dec 02, 2013 at 03:05:19PM +0800, Chris Ruehl wrote:
>> @@ -154,6 +164,27 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop,
>> {
>> int err;
>>
>> + if (nop->ulpi_vbus> 0) {
>> + unsigned int flags = 0;
>> +
>> + if (nop->ulpi_vbus& 0x1)
>> + flags |= ULPI_OTG_DRVVBUS;
>> + if (nop->ulpi_vbus& 0x2)
>> + flags |= ULPI_OTG_DRVVBUS_EXT;
>> + if (nop->ulpi_vbus& 0x4)
>> + flags |= ULPI_OTG_EXTVBUSIND;
>> + if (nop->ulpi_vbus& 0x8)
>> + flags |= ULPI_OTG_CHRGVBUS;
>> +
>> + nop->ulpi = otg_ulpi_create(&ulpi_viewport_access_ops, flags);
>> + if (!nop->ulpi) {
>> + dev_err(dev, "Failed create ULPI Phy\n");
>> + return -ENOMEM;
>> + }
>> + dev_dbg(dev, "Create ULPI Phy\n");
>> + nop->ulpi->io_priv = nop->viewport;
>> + }
>
> This is so wrong. You are registering one kind of usb phy driver from
> an other. Change drivers/usb/phy/ulpi.c to be a platform device. The
> whole flag system in it is pretty horrid. While you are at it, change
> that so it sets the values based on boolean flags from OF properties
> or platform data.
>
> NAK for the whole set.
>
>

Heikki,

Thanks for your comments, even not much positive to me.. any how.
My intention on the "horrid" path was to reduce kernel code where
one of_read32 vs. four of_boolean. And mentioned logic is simple. But that's
history.

On my way to find a solution for my board I'd look around and found using of
phy-ulpi.c functions in phy-tegra-usb.c and don't mind to use them too.

I accept your NAK and will work on a patch to make phy-ulpi.c working as
platform device.

Last question to you. What you don't like on the patch to support chip-select
gpio of my patch-set.. I ask because you NAK the whole set.
I really need the ChipSelect function to make my hardware work!

Chris

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