Revert "i2c: tegra: Fix suspending in active runtime PM state"

[ Upstream commit 78ad73421831247e46c31899a7bead02740e4bef ]

This reverts commit 9f42de8d4ec2304f10bbc51dc0484f3503d61196.

It's not safe to use pm_runtime_force_{suspend,resume}(), especially
during the noirq phase of suspend. See also the guidance provided in
commit 1e2ef05bb8cf ("PM: Limit race conditions between runtime PM
and system sleep (v2)").

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index dbc43cf..331f7cc 100644 (file)
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -1719,14 +1719,9 @@ static int tegra_i2c_remove(struct platform_device *pdev)
 static int __maybe_unused tegra_i2c_suspend(struct device *dev)
 {
        struct tegra_i2c_dev *i2c_dev = dev_get_drvdata(dev);
-       int err;
 
        i2c_mark_adapter_suspended(&i2c_dev->adapter);
 
-       err = pm_runtime_force_suspend(dev);
-       if (err < 0)
-               return err;
-
        return 0;
 }
 
@@ -1747,10 +1742,6 @@ static int __maybe_unused tegra_i2c_resume(struct device *dev)
        if (err)
                return err;
 
-       err = pm_runtime_force_resume(dev);
-       if (err < 0)
-               return err;
-
        i2c_mark_adapter_resumed(&i2c_dev->adapter);
 
        return 0;