Re: [PATCH v2 01/10] phy: qcom-ufs: remove failure when rx/tx_iface_clk are absent

From: Vivek Gautam
Date: Wed Oct 19 2016 - 13:20:31 EST


Hi,


On Wed, Oct 19, 2016 at 2:48 AM, Stephen Boyd <sboyd@xxxxxxxxxxxxxx> wrote:
> On 10/18/2016 07:28 AM, Vivek Gautam wrote:
>> From: Yaniv Gardi <ygardi@xxxxxxxxxxxxxx>
>>
>> Since in future UFS Phy's the tx_iface_clk and rx_iface_clk
>> are no longer exist, we should not fail when their initialization
>> fail, but rather just report with debug message.
>>
>> Signed-off-by: Yaniv Gardi <ygardi@xxxxxxxxxxxxxx>
>> Signed-off-by: Vivek Gautam <vivek.gautam@xxxxxxxxxxxxxx>
>> ---
>
> Shouldn't we have a different compatible string on future UFS phys so
> that we know which number of clks and what clks are required? That's how
> we typically handle clk configurations changing. Making them optional
> should really only be needed when they're really optional, i.e. things
> will work fine if they're there or not.

Correct. It makes sense to have different compatible strings for different
versions.
I will gather more information about previous versions that required
this clock, and update as suggested.


Regards
Vivek


--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project