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-rw-r--r--drivers/pci/controller/pci-tegra.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
index 6be4ea72da92..0fd1c1a8c1b9 100644
--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@ -30,6 +30,7 @@
#include <linux/of_platform.h>
#include <linux/pci.h>
#include <linux/phy/phy.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/reset.h>
#include <linux/sizes.h>
@@ -2853,6 +2854,7 @@ static int __maybe_unused tegra_pcie_pm_suspend(struct device *dev)
if (IS_ENABLED(CONFIG_PCI_MSI))
tegra_pcie_disable_msi(pcie);
+ pinctrl_pm_select_idle_state(dev);
tegra_pcie_power_off(pcie);
return 0;
@@ -2868,6 +2870,13 @@ static int __maybe_unused tegra_pcie_pm_resume(struct device *dev)
dev_err(dev, "tegra pcie power on fail: %d\n", err);
return err;
}
+
+ err = pinctrl_pm_select_default_state(dev);
+ if (err < 0) {
+ dev_err(dev, "failed to disable PCIe IO DPD: %d\n", err);
+ goto poweroff;
+ }
+
tegra_pcie_enable_controller(pcie);
tegra_pcie_setup_translations(pcie);
@@ -2877,7 +2886,7 @@ static int __maybe_unused tegra_pcie_pm_resume(struct device *dev)
err = clk_prepare_enable(pcie->pex_clk);
if (err) {
dev_err(dev, "failed to enable PEX clock: %d\n", err);
- goto poweroff;
+ goto pex_dpd_enable;
}
reset_control_deassert(pcie->pex_rst);
@@ -2898,6 +2907,8 @@ static int __maybe_unused tegra_pcie_pm_resume(struct device *dev)
disable_pex_clk:
reset_control_assert(pcie->pex_rst);
clk_disable_unprepare(pcie->pex_clk);
+pex_dpd_enable:
+ pinctrl_pm_select_idle_state(dev);
poweroff:
tegra_pcie_power_off(pcie);