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clk: qcom: gcc-sm8250: Do not turn off PCIe GDSCs during gdsc_disable()

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commit ade508b545 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 # 5.7
Fixes: 3e5770921a ("clk: qcom: gcc: Add global clock controller driver for SM8250")
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20240719134238.312191-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Manivannan Sadhasivam
2024-07-19 19:12:38 +05:30
committed by Greg Kroah-Hartman
parent bf6be32e2d
commit c02e3ab7ec
1 changed files with 3 additions and 3 deletions
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drivers/clk/qcom/gcc-sm8250.c
+3 -3
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@@ -3228,7 +3228,7 @@ 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 = {
@@ -3236,7 +3236,7 @@ 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 = {
@@ -3244,7 +3244,7 @@ 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 = {