Re: [PATCH 1/1] mmc: core: export emmc revision via sysfs

From	Jin Qian <jinqian@android.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 1/1] mmc: core: export emmc revision via sysfs
Date	2017-03-23 01:40 +0100
Message-ID	<tnYXf-2Br-1@gated-at.bofh.it> (permalink)
References	<tnAid-1cd-11@gated-at.bofh.it> <tnA8y-18H-19@gated-at.bofh.it> <tnAid-1cd-9@gated-at.bofh.it>
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Removed redundant signoff.

export rev to collect some statistics on how many devices are running
with which mmc revision.

Other attr name seems follow cid.<name> or ext_csd.<name>.

Thanks,
jin


On Tue, Mar 21, 2017 at 3:17 PM, Jaehoon Chung <jh80.chung@samsung.com> wrote:
> Hi,
>
> On 03/22/2017 07:01 AM, Jin Qian wrote:
>> Extend sysfs to access ext_csd revision information.
>>
>> Signed-off-by: Jin Qian <jinqian@google.com>
>> Signed-off-by: Jin Qian <jinqian@android.com>
>
> I think you can choose one of them for signed-off tag.
>
>> ---
>>  drivers/mmc/core/mmc.c | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
>> index 7fd722868875..08c62c9bec48 100644
>> --- a/drivers/mmc/core/mmc.c
>> +++ b/drivers/mmc/core/mmc.c
>> @@ -779,6 +779,7 @@ MMC_DEV_ATTR(manfid, "0x%06x\n", card->cid.manfid);
>>  MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name);
>>  MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid);
>>  MMC_DEV_ATTR(prv, "0x%x\n", card->cid.prv);
>> +MMC_DEV_ATTR(rev, "0x%x\n", card->ext_csd.rev);
>
> I'm not sure but if someone want to know ext_csd revision information, attribute name might be more clearly.
> e,g) ext_csd_rev?
>
> It's my preference. :)
>
> Best Regards,
> Jaehoon Chung
>
>>  MMC_DEV_ATTR(pre_eol_info, "%02x\n", card->ext_csd.pre_eol_info);
>>  MMC_DEV_ATTR(life_time, "0x%02x 0x%02x\n",
>>       card->ext_csd.device_life_time_est_typ_a,
>> @@ -836,6 +837,7 @@ static struct attribute *mmc_std_attrs[] = {
>>       &dev_attr_name.attr,
>>       &dev_attr_oemid.attr,
>>       &dev_attr_prv.attr,
>> +     &dev_attr_rev.attr,
>>       &dev_attr_pre_eol_info.attr,
>>       &dev_attr_life_time.attr,
>>       &dev_attr_serial.attr,
>>
>

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[PATCH 1/1] mmc: core: export emmc revision via sysfs Jin Qian <jinqian@android.com> - 2017-03-21 23:10 +0100
  Re: [PATCH 1/1] mmc: core: export emmc revision via sysfs Jaehoon Chung <jh80.chung@samsung.com> - 2017-03-21 23:20 +0100
    Re: [PATCH 1/1] mmc: core: export emmc revision via sysfs Jin Qian <jinqian@android.com> - 2017-03-23 01:40 +0100

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