[PATCH v2 2/5] phy: qcom: Add Qualcomm PCIe PHY

Kishon Vijay Abraham I kishon at ti.com
Wed May 20 06:08:19 PDT 2015

Hi Bjorn,

On Wednesday 20 May 2015 04:11 AM, Bjorn Helgaas wrote:
> On Mon, May 04, 2015 at 06:24:10PM +0300, Stanimir Varbanov wrote:
>> On 05/04/2015 05:35 PM, Kishon Vijay Abraham I wrote:
>>> Hi,
>>> On Monday 04 May 2015 06:12 PM, Stanimir Varbanov wrote:
>>>> Add a PCIe PHY driver used by PCIe host controller driver
>>>> on Qualcomm SoCs like Snapdragon 805.
>>>> Signed-off-by: Stanimir Varbanov <svarbanov at mm-sol.com>
>>>> ---
>>>>    drivers/phy/Kconfig         |    9 ++
>>>>    drivers/phy/Makefile        |    1 +
>>>>    drivers/phy/phy-qcom-pcie.c |  291
>>>> +++++++++++++++++++++++++++++++++++++++++++
>>> Why do you need a new PHY driver for this? Why not use the existing QCOM
>>> PHY driver. I can see the registers used here in phy-qcom-ufs-qmp-14nm.h?
>> I agree that on first glance there are similarities, but I'm not sure
>> does the PHYs are the same IP blocks. Or at least they are different
>> revisions which have too many differences. So trying to combine them
>> will lead to more code than now.
>> Either way I will try to understand how many the differences are.
> Ping, where are we with this?  Should I wait for something else, or are you
> convinced there's enough difference to warrant a new PHY driver, Kishon?

I'd like to wait to see if Stanimir can use existing driver instead of creating 
a new driver.


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