SDIO power on/off time impacts system suspend/resume time! – SFO17-402
Session ID: SFO17-402
Session Name: SDIO power on/off time impacts system suspend/resume time! – SFO17-402
Speaker: Ulf Hansson
Track: Power Management
★ Session Summary ★
Often an embedded WLAN chip is connected via an SDIO bus. During a system suspend/resume the SDIO card (WLAN chip) gets re-initialized unconditionally, even when it’s not needed.
The re-initialization of an SDIO card often consumes several hundreds of milliseconds, as also shown by real measurements. Unfortunate this time adds up to the total suspend/resume time for the system.
In this session the problem is being described and a solution being explored.
★ Resources ★
Event Page: http://connect.linaro.org/resource/sfo17/sfo17-402/
★ Event Details ★
Linaro Connect San Francisco 2017 (SFO17)
25-29 September 2017
Hyatt Regency San Francisco Airport
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Event Date: 28 Sept 2017
Speakers: Ulf Hansson
Position: Senior Kernel Engineer at Linaro