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i2c: i801: Improve disabling runtime pm
Setting the autosuspend delay to a negative value disables runtime pm in a little bit smarter way, because we need no cleanup when removing the driver. Note that this is safe when reloading the driver, because the call to pm_runtime_set_autosuspend_delay() in probe() will reverse the effect. See update_autosuspend() for details. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
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@ -1628,7 +1628,7 @@ i801_acpi_io_handler(u32 function, acpi_physical_address address, u32 bits,
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* BIOS is accessing the host controller so prevent it from
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* suspending automatically from now on.
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*/
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pm_runtime_get_sync(&pdev->dev);
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pm_runtime_set_autosuspend_delay(&pdev->dev, -1);
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}
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if ((function & ACPI_IO_MASK) == ACPI_READ)
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@ -1668,11 +1668,6 @@ static void i801_acpi_remove(struct i801_priv *priv)
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acpi_remove_address_space_handler(adev->handle,
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ACPI_ADR_SPACE_SYSTEM_IO, i801_acpi_io_handler);
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mutex_lock(&priv->acpi_lock);
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if (priv->acpi_reserved)
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pm_runtime_put(&priv->pci_dev->dev);
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mutex_unlock(&priv->acpi_lock);
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}
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#else
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static inline int i801_acpi_probe(struct i801_priv *priv) { return 0; }
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