[PATCH 7/7] clk: qcom: gcc-kaanapali: Do not turn off PCIe GDSCs during gdsc_disable()

Krishna Chaitanya Chundru
2026-01-02T09:44:03Z

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.

Fixes: d1919c375f21 ("clk: qcom: Add support for Global clock controller on Kaanapali")
Cc: stable@vger.kernel.org
Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
---
drivers/clk/qcom/gcc-kaanapali.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/gcc-kaanapali.c b/drivers/clk/qcom/gcc-kaanapali.c
index 182b152df14c252035fb28adb2e652bbfa22114a..1bae1c9dbc7764996e7c0228f9fab72d5e630cfa 100644
--- a/drivers/clk/qcom/gcc-kaanapali.c
+++ b/drivers/clk/qcom/gcc-kaanapali.c
@@ -3141,7 +3141,7 @@ static struct gdsc gcc_pcie_0_gdsc = {
.pd = {
.name = "gcc_pcie_0_gdsc",
},
- .pwrsts = PWRSTS_OFF_ON,
+ .pwrsts = PWRSTS_RET_ON,
.flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE,
};

--
2.34.1