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[0/4] usb: dwc2: fix host mode external vbus supply management

Message ID 1536147605-26279-1-git-send-email-amelie.delaunay@st.com (mailing list archive)
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Series usb: dwc2: fix host mode external vbus supply management | expand

Message

Amelie Delaunay Sept. 5, 2018, 11:40 a.m. UTC 
This patchset fixes and improves host mode external vbus supply management,
mainly around suspend/resume use cases. It also avoid 'vbus regulator"
to be requested lots of times upon each call to dwc2_vbus_supply_init(),
especially when pm runtime is enabled.

Fabrice Gasnier (4):
  usb: dwc2: get optional vbus-supply regulator once
  usb: dwc2: fix a race with external vbus supply
  usb: dwc2: fix call to vbus supply exit routine, call it unlocked
  usb: dwc2: fix unbalanced use of external vbus-supply

 drivers/usb/dwc2/hcd.c      | 45 ++++++++++++++++++++++++++++++++++-----------
 drivers/usb/dwc2/platform.c |  8 ++++++++
 2 files changed, 42 insertions(+), 11 deletions(-)

Comments

Artur Petrosyan Sept. 10, 2018, 10:18 a.m. UTC | #1 
Hi,

On 9/5/2018 15:41, Amelie Delaunay wrote:
> This patchset fixes and improves host mode external vbus supply management,
> mainly around suspend/resume use cases. It also avoid 'vbus regulator"
> to be requested lots of times upon each call to dwc2_vbus_supply_init(),
> especially when pm runtime is enabled.
> 
> Fabrice Gasnier (4):
>    usb: dwc2: get optional vbus-supply regulator once
>    usb: dwc2: fix a race with external vbus supply
>    usb: dwc2: fix call to vbus supply exit routine, call it unlocked
>    usb: dwc2: fix unbalanced use of external vbus-supply
> 
>   drivers/usb/dwc2/hcd.c      | 45 ++++++++++++++++++++++++++++++++++-----------
>   drivers/usb/dwc2/platform.c |  8 ++++++++
>   2 files changed, 42 insertions(+), 11 deletions(-)
> 
Tested-by: Artur Petrosyan <arturp@synopsys.com>

The patchset has been tested on Synopsys HAPS-DX platform.

Thanks,
Artur
Minas Harutyunyan Sept. 13, 2018, 6:22 a.m. UTC | #2 
On 9/5/2018 3:40 PM, Amelie Delaunay wrote:
> This patchset fixes and improves host mode external vbus supply management,
> mainly around suspend/resume use cases. It also avoid 'vbus regulator"
> to be requested lots of times upon each call to dwc2_vbus_supply_init(),
> especially when pm runtime is enabled.
> 
> Fabrice Gasnier (4):
>    usb: dwc2: get optional vbus-supply regulator once
>    usb: dwc2: fix a race with external vbus supply
>    usb: dwc2: fix call to vbus supply exit routine, call it unlocked
>    usb: dwc2: fix unbalanced use of external vbus-supply
> 
>   drivers/usb/dwc2/hcd.c      | 45 ++++++++++++++++++++++++++++++++++-----------
>   drivers/usb/dwc2/platform.c |  8 ++++++++
>   2 files changed, 42 insertions(+), 11 deletions(-)
> 
Tested-by: Artur Petrosyan <arturp@synopsys.com>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>