6.13-stable review patch. If anyone has any objections, please let me know.
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From: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org
commit a57465766a91c6e173876f9cbb424340e214313f 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@vger.kernel.org # 6.8 Fixes: c58225b7e3d7 ("clk: qcom: add the SM8650 Global Clock Controller driver, part 1") Reported-by: Neil Armstrong neil.armstrong@linaro.org Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org Reviewed-by: Neil Armstrong neil.armstrong@linaro.org Tested-by: Neil Armstrong neil.armstrong@linaro.org # on QRD8650 Link: https://lore.kernel.org/r/20241219170011.70140-2-manivannan.sadhasivam@linar... Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/clk/qcom/gcc-sm8650.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/clk/qcom/gcc-sm8650.c +++ b/drivers/clk/qcom/gcc-sm8650.c @@ -3437,7 +3437,7 @@ static struct gdsc pcie_0_gdsc = { .pd = { .name = "pcie_0_gdsc", }, - .pwrsts = PWRSTS_OFF_ON, + .pwrsts = PWRSTS_RET_ON, .flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, };
@@ -3448,7 +3448,7 @@ static struct gdsc pcie_0_phy_gdsc = { .pd = { .name = "pcie_0_phy_gdsc", }, - .pwrsts = PWRSTS_OFF_ON, + .pwrsts = PWRSTS_RET_ON, .flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, };
@@ -3459,7 +3459,7 @@ static struct gdsc pcie_1_gdsc = { .pd = { .name = "pcie_1_gdsc", }, - .pwrsts = PWRSTS_OFF_ON, + .pwrsts = PWRSTS_RET_ON, .flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, };
@@ -3470,7 +3470,7 @@ static struct gdsc pcie_1_phy_gdsc = { .pd = { .name = "pcie_1_phy_gdsc", }, - .pwrsts = PWRSTS_OFF_ON, + .pwrsts = PWRSTS_RET_ON, .flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, };