From: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
commit 889e1332310656961855c0dcedbb4dbe78e39d22 upstream.
With PWRSTS_OFF_ON, PCIe GDSCs are turned off during gdsc_disable(). This
can happen during scenarios such as system suspend and breaks the resume
of PCIe controllers from suspend.
So use PWRSTS_RET_ON to indicate the GDSC driver to not turn off the GDSCs
during gdsc_disable() and allow the hardware to transition the GDSCs to
retention when the parent domain enters low power state during system
suspend.
Cc: stable@xxxxxxxxxxxxxxx # 5.17
Fixes: db0c944ee92b ("clk: qcom: Add clock driver for SM8450")
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240722105733.13040-1-manivannan.sadhasivam@xxxxxxxxxx
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/clk/qcom/gcc-sm8450.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/clk/qcom/gcc-sm8450.c
+++ b/drivers/clk/qcom/gcc-sm8450.c
@@ -2974,7 +2974,7 @@ static struct gdsc pcie_0_gdsc = {
.pd = {
.name = "pcie_0_gdsc",
},
- .pwrsts = PWRSTS_OFF_ON,
+ .pwrsts = PWRSTS_RET_ON,
};
static struct gdsc pcie_1_gdsc = {
@@ -2982,7 +2982,7 @@ static struct gdsc pcie_1_gdsc = {
.pd = {
.name = "pcie_1_gdsc",
},
- .pwrsts = PWRSTS_OFF_ON,
+ .pwrsts = PWRSTS_RET_ON,
};
static struct gdsc ufs_phy_gdsc = {
Patches currently in stable-queue which might be from manivannan.sadhasivam@xxxxxxxxxx are
queue-6.10/clk-qcom-gcc-sm8450-do-not-turn-off-pcie-gdscs-during-gdsc_disable.patch
queue-6.10/clk-qcom-gcc-sm8250-do-not-turn-off-pcie-gdscs-during-gdsc_disable.patch
