linux-kernel - Re: [PATCH 4/4] phy: miphy365x: Provide support for the MiPHY356x Generic PHY

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Message-ID: <537A1354.6010408@ti.com>
Date:	Mon, 19 May 2014 19:51:08 +0530
From:	Kishon Vijay Abraham I <kishon@...com>
To:	Mark Rutland <mark.rutland@....com>,
	Lee Jones <lee.jones@...aro.org>
CC:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"alexandre.torgue@...com" <alexandre.torgue@...com>
Subject: Re: [PATCH 4/4] phy: miphy365x: Provide support for the MiPHY356x
 Generic PHY

Hi,

On Wednesday 05 March 2014 01:25 PM, Mark Rutland wrote:
> On Fri, Feb 14, 2014 at 11:23:56AM +0000, Lee Jones wrote:
>> The MiPHY365x is a Generic PHY which can serve various SATA or PCIe
>> devices. It has 2 ports which it can use for either; both SATA, both
>> PCIe or one of each in any configuration.
>>
>> Cc: Kishon Vijay Abraham I <kishon@...com>
>> Signed-off-by: Lee Jones <lee.jones@...aro.org>
>> ---
>>  drivers/phy/Kconfig         |  10 +
>>  drivers/phy/Makefile        |   1 +
>>  drivers/phy/phy-miphy365x.c | 614 ++++++++++++++++++++++++++++++++++++++++++++
>>  3 files changed, 625 insertions(+)
>>  create mode 100644 drivers/phy/phy-miphy365x.c
> 
> [...]
> 
>> +enum miphy_sata_gen {
>> +       SATA_GEN1 = 1,
>> +       SATA_GEN2,
>> +       SATA_GEN3
>> +};
> 
> It would be nice to have a comment here that these values are ABI and
> cannot change.
> 
> [...]
> 
>> +static struct phy *miphy365x_phy_xlate(struct device *dev,
>> +                                      struct of_phandle_args *args)
>> +{
>> +       struct miphy365x_dev *state = dev_get_drvdata(dev);
>> +       u8 port = args->args[0];
>> +       u8 type = args->args[1];
> 
> In case of a bad dt, it would be nice to check args->arg_count == 2.
> 
> ALso, we throw away the top 24 bits, which may have been set
> erroneously. If we want to make use of those in future we should test
> they are clear here to force people to do the right thing.

I don't seem to have the update patch series? Can you resend please?

Thanks
Kishon
> 
> Otherwise, this looks fine to me.
> 
> With those additions:
> 
> Acked-by: Mark Rutland <mark.rutland@....com>
> 
> Cheers,
> Mark.
> 
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