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clk: qcom: gcc-sc7280: Update the .pwrsts for usb gdscs

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The USB controllers on sc7280 do not retain the state when
the system goes into low power state and the GDSCs are
turned off. This results in the controllers reinitializing and
re-enumerating all the connected devices (resulting in additional
delay while coming out of suspend)
Fix this by updating the .pwrsts for the USB GDSCs so they only
transition to retention state in low power.
Since sc7280 only supports cx (parent of usb gdscs) Retention, there
are no cxcs offsets mentioned in order to support the Retention
state.

Signed-off-by: Rajendra Nayak <quic_rjendra@quicinc.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220920111517.10407-3-quic_rjendra@quicinc.com
This commit is contained in:
Rajendra Nayak 2022-09-20 16:45:17 +05:30 committed by Bjorn Andersson
parent d9fe9f3fef
commit e3ae3e899a
1 changed files with 2 additions and 2 deletions
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4
drivers/clk/qcom/gcc-sc7280.c
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@ -3126,7 +3126,7 @@ static struct gdsc gcc_usb30_prim_gdsc = {
.pd = {
.name = "gcc_usb30_prim_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
.pwrsts = PWRSTS_RET_ON,
.flags = VOTABLE,
};
@ -3135,7 +3135,7 @@ static struct gdsc gcc_usb30_sec_gdsc = {
.pd = {
.name = "gcc_usb30_sec_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
.pwrsts = PWRSTS_RET_ON,
.flags = VOTABLE,
};