Re: [PATCH v1 08/17] scsi: ufs: split broken LCC quirk

[ygardi@codeaurora.org]

> 2015-09-13 23:52 GMT+09:00 Yaniv Gardi <ygardi@codeaurora.org>:
>> Currently when UFSHCD_BROKEN_LCC quirk is defined, LCC is getting
>> disabled on both host and device side but there could be a need
>> where we don't want to disable the LCC on both side hence this change
>> splits the quirk in 2 parts one for host and one for device.
>>
>> Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
>> Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
>>
>> ---
>>  drivers/scsi/ufs/ufshcd.c | 11 +++++++++++
>>  1 file changed, 11 insertions(+)
>>
>> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
>> index 0803a89..411ec17 100644
>> --- a/drivers/scsi/ufs/ufshcd.c
>> +++ b/drivers/scsi/ufs/ufshcd.c
>> @@ -3048,6 +3048,11 @@ static int ufshcd_disable_tx_lcc(struct ufs_hba
>> *hba, bool peer)
>>         return err;
>>  }
>>
>> +static inline int ufshcd_disable_host_tx_lcc(struct ufs_hba *hba)
>> +{
>> +       return ufshcd_disable_tx_lcc(hba, false);
>> +}
>> +
>>  static inline int ufshcd_disable_device_tx_lcc(struct ufs_hba *hba)
>>  {
>>         return ufshcd_disable_tx_lcc(hba, true);
>> @@ -3095,6 +3100,12 @@ static int ufshcd_link_startup(struct ufs_hba
>> *hba)
>>                         goto out;
>>         }
>>
>> +       if (hba->dev_quirks & UFS_DEVICE_QUIRK_BROKEN_LCC) {
>> +               ret = ufshcd_disable_host_tx_lcc(hba);
>> +               if (ret)
>> +                       goto out;
>> +       }
>> +
>
> This dev_quirks is checked just after link startup.  But dev_quirk is
> determined after ufshcd_complete_dev_init().  Is this quirk correctly
> be applied?

good comment :)
since there is no need in this quirk anymore (it is never set),
luckily we can totally remove the quirk.
i will remove this patch totally in v2



>
>>         /* Include any host controller configuration via UIC commands */
>>         ret = ufshcd_vops_link_startup_notify(hba, POST_CHANGE);
>>         if (ret)
>> --
>> 1.8.5.2
>>
>> --
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>