diff options
| author | Hemant Kumar <hemantk@codeaurora.org> | 2016-08-10 13:41:05 -0700 |
|---|---|---|
| committer | Hemant Kumar <hemantk@codeaurora.org> | 2016-08-10 14:08:12 -0700 |
| commit | 9dfea8de0a3e9154f0d2ef4f08990c02acfb0240 (patch) | |
| tree | c704ae1dca4695e8b93db7e0f1bc5c2b878d4e28 /drivers/usb/dwc3 | |
| parent | e94b446eac88a43e42ecde105275d48b677ea5b3 (diff) | |
usb: dwc3: Use clock API to control the memory power states
GDSC driver is removing control for USB memory power states.
DWC driver need to explicitly call clk_set_flag() API to turn
off both memory core and periphery upon vbus off. When core
clock is turned on both of them will be turn on automatically.
Change-Id: I7e442daf51c6ece39b8fe5cc8a38d3405163c9b5
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/dwc3-msm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/dwc3-msm.c b/drivers/usb/dwc3/dwc3-msm.c index 4d35de1c14c5..da6b177bfcb5 100644 --- a/drivers/usb/dwc3/dwc3-msm.c +++ b/drivers/usb/dwc3/dwc3-msm.c @@ -1927,6 +1927,12 @@ static int dwc3_msm_suspend(struct dwc3_msm *mdwc) clk_disable_unprepare(mdwc->bus_aggr_clk); clk_disable_unprepare(mdwc->utmi_clk); + /* Memory core: OFF, Memory periphery: OFF */ + if (!mdwc->in_host_mode && !mdwc->vbus_active) { + clk_set_flags(mdwc->core_clk, CLKFLAG_NORETAIN_MEM); + clk_set_flags(mdwc->core_clk, CLKFLAG_NORETAIN_PERIPH); + } + clk_set_rate(mdwc->core_clk, 19200000); clk_disable_unprepare(mdwc->core_clk); /* |