Re: [PATCH 3/5] phy: Add support for S5PV210 to the Exynos USB PHY driver

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On Saturday, October 26, 2013 12:50 AM, Kishon Vijay Abraham I wrote:
> On Friday 25 October 2013 07:45 PM, Kamil Debski wrote:
> > From: Mateusz Krawczuk <m.krawczuk@xxxxxxxxxxxxxxxxxxx>
> >
> > Add support for the Samsung's S5PV210 SoC to the Exynos USB PHY driver.
> >
> > Signed-off-by: Mateusz Krawczuk <m.krawczuk@xxxxxxxxxxxxxxxxxxx>
> > [k.debski@xxxxxxxxxxx: whitespace cleanup and commit description]
> > Signed-off-by: Kamil Debski <k.debski@xxxxxxxxxxx>
> > ---
> >  drivers/phy/Kconfig           |    7 ++
> >  drivers/phy/phy-exynos-usb.c  |   10 ++
> >  drivers/phy/phy-exynos-usb.h  |    1 +
> >  drivers/phy/phy-s5pv210-usb.c |  236 +++++++++++++++++++++++++++++++++++++++++
> >  4 files changed, 254 insertions(+)
> >  create mode 100644 drivers/phy/phy-s5pv210-usb.c

[.....]

> > diff --git a/drivers/phy/phy-s5pv210-usb.c b/drivers/phy/phy-s5pv210-usb.c
> > new file mode 100644
> > index 0000000..575275d
> > --- /dev/null
> > +++ b/drivers/phy/phy-s5pv210-usb.c
> 
> how different is this IP different from the previous ones? Does it deserve a
> separate driver or the previous drivers can be re-used?

[.....]

> > +const struct uphy_config s5pv210_uphy_config = {
> > +	.cpu		= TYPE_S5PV210,
> > +	.num_phys	= S5PV210_NUM_PHYS,
> > +	.phys		= s5pv210_phys,
> > +};
> 
> IMO this looks similar to the other drivers. Please re-use the drivers wherever
> possible.
> 

+cc Praveen Paneri(Author of Samsung PHY driver), Yulgon Kim, Anton Tikhomirov

I agree with Kishon's opinion.

Actually, all Exynos USB PHY controllers are not different IPs.
However, the differences between Exynos USB PHY controllers are
not little.

Best regards,
Jingoo Han

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