diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2021-08-06 23:12:18 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2021-08-10 22:36:15 +0200 |
| commit | 4e60d5dd10cd82014b26a40519b94444547ec95c (patch) | |
| tree | bec9fc65ca712817009dc8548921cf98cf3662b6 /drivers/i2c | |
| parent | f16a3bb69aa6baabf8f0aca982c8cf21e2a4f6bc (diff) | |
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>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 92ec291c0648..ef6dbb531a9c 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -1628,7 +1628,7 @@ i801_acpi_io_handler(u32 function, acpi_physical_address address, u32 bits, * BIOS is accessing the host controller so prevent it from * suspending automatically from now on. */ - pm_runtime_get_sync(&pdev->dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, -1); } if ((function & ACPI_IO_MASK) == ACPI_READ) @@ -1668,11 +1668,6 @@ static void i801_acpi_remove(struct i801_priv *priv) acpi_remove_address_space_handler(adev->handle, ACPI_ADR_SPACE_SYSTEM_IO, i801_acpi_io_handler); - - mutex_lock(&priv->acpi_lock); - if (priv->acpi_reserved) - pm_runtime_put(&priv->pci_dev->dev); - mutex_unlock(&priv->acpi_lock); } #else static inline int i801_acpi_probe(struct i801_priv *priv) { return 0; } |