On Thu, Jul 06, 2023 at 03:38:22PM +0200, Johan Hovold wrote:
> On Thu, Jul 06, 2023 at 06:17:00PM +0530, Manivannan Sadhasivam wrote:
> > This reverts commit 12d2a4769380f0dc9ba6f827839869db2b81ef00.
>
> Please update the commit summary and remove or rephrase the above as
> direct reverts are typically used for patches that were broken or causes
> trouble (e.g rephrase as "allow pcie gdsdc to be disabled" or similar).
>
> The patch in question was correct at the time even if it may no longer
> be required, but see below.
>
Ok!
> > With the minimal system suspend support in place for the PCIe driver that
> > keeps the interconnect path active, the ALWAYS_ON flags can now be dropped.
> >
> > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> > ---
> > drivers/clk/qcom/gcc-sc8280xp.c | 14 +++++---------
> > 1 file changed, 5 insertions(+), 9 deletions(-)
> >
> > diff --git a/drivers/clk/qcom/gcc-sc8280xp.c b/drivers/clk/qcom/gcc-sc8280xp.c
> > index 04a99dbaa57e..07eb6110442c 100644
> > --- a/drivers/clk/qcom/gcc-sc8280xp.c
> > +++ b/drivers/clk/qcom/gcc-sc8280xp.c
> > @@ -6774,10 +6774,6 @@ static struct gdsc pcie_1_tunnel_gdsc = {
> > .flags = VOTABLE,
> > };
> >
> > -/*
> > - * The Qualcomm PCIe driver does not yet implement suspend so to keep the
> > - * PCIe power domains always-on for now.
> > - */
> > static struct gdsc pcie_2a_gdsc = {
> > .gdscr = 0x9d004,
> > .collapse_ctrl = 0x52128,
> > @@ -6786,7 +6782,7 @@ static struct gdsc pcie_2a_gdsc = {
> > .name = "pcie_2a_gdsc",
> > },
> > .pwrsts = PWRSTS_OFF_ON,
> > - .flags = VOTABLE | ALWAYS_ON,
> > + .flags = VOTABLE,
> > };
>
> Are you sure this is correct? Won't the controller state be lost if the
> GDSC is powered off during suspend? Shouldn't this be PWRSTS_RET_ON at
> least?
>
Doh! Yes, I missed that. Will add it in v2.
- Mani
> Johan
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