Re: WIP: UFS on apq8098

[Jeffrey Hugo <jhugo@codeaurora.org>]

On 12/4/2018 10:21 AM, Jeffrey Hugo wrote:
> On 12/4/2018 10:11 AM, Marc Gonzalez wrote:
>> On 04/12/2018 18:05, Jeffrey Hugo wrote:
>>
>>> mount -t debugfs none /sys/kernel/debug
>>
>> Doh!
>>
>> # cat /sys/kernel/debug/clk/clk_summary
>>                                   enable  prepare  
>> protect                                duty
>>     clock                          count    count    count        
>> rate   accuracy phase  cycle
>> --------------------------------------------------------------------------------------------- 
>>
>>   gcc_usb_phy_cfg_ahb2phy_clk          0        0        0           
>> 0          0     0  50000
>>   gcc_usb3_phy_pipe_clk                0        0        0           
>> 0          0     0  50000
>>   gcc_usb30_sleep_clk                  0        0        0           
>> 0          0     0  50000
>>   gcc_ufs_unipro_core_clk              0        0        0           
>> 0          0     0  50000
> 
> Yeah, this clock has no parent, and is one of the ones that is a delta 
> from the downsteam per your logs.

 From what I can tell from the documentation, this is sourced from 
ufs_unipro_core_clk_src, which is inturn sourced from gpll0_out_main. 
I'm guessing gcc-msm8998.c needs to be updated to reflect this.  It 
would also be good to check this against the downstream kernel.

Let me know if you want me to have a look at any other specific clocks.

-- 
Jeffrey Hugo
Qualcomm Datacenter Technologies as an affiliate of Qualcomm 
Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.

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