From: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
commit ade508b545c969c72cd68479f275a5dd640fd8b9 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 # 5.7
Fixes: 3e5770921a88 ("clk: qcom: gcc: Add global clock controller driver for SM8250")
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240719134238.312191-1-manivannan.sadhasivam@xxxxxxxxxx
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/clk/qcom/gcc-sm8250.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/clk/qcom/gcc-sm8250.c
+++ b/drivers/clk/qcom/gcc-sm8250.c
@@ -3226,7 +3226,7 @@ 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 = {
@@ -3234,7 +3234,7 @@ static struct gdsc pcie_1_gdsc = {
.pd = {
.name = "pcie_1_gdsc",
},
- .pwrsts = PWRSTS_OFF_ON,
+ .pwrsts = PWRSTS_RET_ON,
};
static struct gdsc pcie_2_gdsc = {
@@ -3242,7 +3242,7 @@ static struct gdsc pcie_2_gdsc = {
.pd = {
.name = "pcie_2_gdsc",
},
- .pwrsts = PWRSTS_OFF_ON,
+ .pwrsts = PWRSTS_RET_ON,
};
static struct gdsc ufs_card_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
