[PATCH v2 04/11] clk: qcom: gcc-sc8180x: Use retention for PCIe power domains

[Val Packett]

As the PCIe host controller driver does not yet support dealing with the
loss of state during suspend, use retention for relevant GDSCs.

This fixes the link not surviving upon resume:

    nvme 0002:01:00.0: Unable to change power state from D3cold to D0, device inaccessible
    nvme nvme0: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS read failed (134)
    nvme 0002:01:00.0: Unable to change power state from D3cold to D0, device inaccessible
    nvme nvme0: Disabling device after reset failure: -19

Fixes: 4433594bbe5d ("clk: qcom: gcc: Add global clock controller driver for SC8180x")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
Signed-off-by: Val Packett <val@xxxxxxxxxxxx>
---
 drivers/clk/qcom/gcc-sc8180x.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/qcom/gcc-sc8180x.c b/drivers/clk/qcom/gcc-sc8180x.c
index b116a9c0b2d9..4095a1f54a09 100644
--- a/drivers/clk/qcom/gcc-sc8180x.c
+++ b/drivers/clk/qcom/gcc-sc8180x.c
@@ -4199,7 +4199,7 @@ static struct gdsc pcie_0_gdsc = {
 	.pd = {
 		.name = "pcie_0_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 	.flags = POLL_CFG_GDSCR,
 };
 
@@ -4226,7 +4226,7 @@ static struct gdsc pcie_1_gdsc = {
 	.pd = {
 		.name = "pcie_1_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 	.flags = POLL_CFG_GDSCR,
 };
 
@@ -4235,7 +4235,7 @@ static struct gdsc pcie_2_gdsc = {
 	.pd = {
 		.name = "pcie_2_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 	.flags = POLL_CFG_GDSCR,
 };
 
@@ -4253,7 +4253,7 @@ static struct gdsc pcie_3_gdsc = {
 	.pd = {
 		.name = "pcie_3_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 	.flags = POLL_CFG_GDSCR,
 };
 
-- 
2.52.0