[v3] mmc: Add partial initialization support

[PATCH V3 0/3] mmc: Add partial initialization support

Posted by Sarthak Garg 2 years, 2 months ago

Add the ability to partially initialize the MMC device by
using device sleep/awake sequence (CMD5).
Device will be sent to sleep state during mmc runtime/system suspend
and will be woken up during mmc runtime/system resume.
By using this sequence the device doesn't need full initialization
which gives 25% time reduction in system/runtime resume path.
Also enable this feature along with mmc runtime PM for qualcomm
controllers.

Sarthak Garg (3):
  mmc: core: Add partial initialization support
  mmc: sdhci-msm: Enable MMC_CAP_AGGRESSIVE_PM for Qualcomm controllers
  mmc: sdhci-msm: Enable MMC_CAP2_SLEEP_AWAKE for Qualcomm controllers

 drivers/mmc/core/mmc.c       | 163 +++++++++++++++++++++++++++++++++--
 drivers/mmc/host/sdhci-msm.c |   2 +
 include/linux/mmc/card.h     |   4 +
 include/linux/mmc/host.h     |   2 +
 4 files changed, 162 insertions(+), 9 deletions(-)

-- 
2.17.1

Re: [PATCH V3 0/3] mmc: Add partial initialization support

Posted by Ulf Hansson 2 years, 2 months ago

On Tue, 17 Oct 2023 at 08:13, Sarthak Garg <quic_sartgarg@quicinc.com> wrote:
>
> Add the ability to partially initialize the MMC device by
> using device sleep/awake sequence (CMD5).
> Device will be sent to sleep state during mmc runtime/system suspend
> and will be woken up during mmc runtime/system resume.
> By using this sequence the device doesn't need full initialization
> which gives 25% time reduction in system/runtime resume path.
> Also enable this feature along with mmc runtime PM for qualcomm
> controllers.
>
> Sarthak Garg (3):
>   mmc: core: Add partial initialization support
>   mmc: sdhci-msm: Enable MMC_CAP_AGGRESSIVE_PM for Qualcomm controllers
>   mmc: sdhci-msm: Enable MMC_CAP2_SLEEP_AWAKE for Qualcomm controllers
>
>  drivers/mmc/core/mmc.c       | 163 +++++++++++++++++++++++++++++++++--
>  drivers/mmc/host/sdhci-msm.c |   2 +
>  include/linux/mmc/card.h     |   4 +
>  include/linux/mmc/host.h     |   2 +
>  4 files changed, 162 insertions(+), 9 deletions(-)

Would mind resending this version and while doing that, please add
some version information to each patch in the series. This helps while
reviewing.

Kind regards
Uffe

Re: [PATCH V3 0/3] mmc: Add partial initialization support

Posted by Sarthak Garg 2 years, 1 month ago


On 10/17/2023 5:09 PM, Ulf Hansson wrote:
> On Tue, 17 Oct 2023 at 08:13, Sarthak Garg <quic_sartgarg@quicinc.com> wrote:
>>
>> Add the ability to partially initialize the MMC device by
>> using device sleep/awake sequence (CMD5).
>> Device will be sent to sleep state during mmc runtime/system suspend
>> and will be woken up during mmc runtime/system resume.
>> By using this sequence the device doesn't need full initialization
>> which gives 25% time reduction in system/runtime resume path.
>> Also enable this feature along with mmc runtime PM for qualcomm
>> controllers.
>>
>> Sarthak Garg (3):
>>    mmc: core: Add partial initialization support
>>    mmc: sdhci-msm: Enable MMC_CAP_AGGRESSIVE_PM for Qualcomm controllers
>>    mmc: sdhci-msm: Enable MMC_CAP2_SLEEP_AWAKE for Qualcomm controllers
>>
>>   drivers/mmc/core/mmc.c       | 163 +++++++++++++++++++++++++++++++++--
>>   drivers/mmc/host/sdhci-msm.c |   2 +
>>   include/linux/mmc/card.h     |   4 +
>>   include/linux/mmc/host.h     |   2 +
>>   4 files changed, 162 insertions(+), 9 deletions(-)
> 
> Would mind resending this version and while doing that, please add
> some version information to each patch in the series. This helps while
> reviewing.
> 
> Kind regards
> Uffe

Sure will repost with the version history.

Thanks,
Sarthak