From 4e60d5dd10cd82014b26a40519b94444547ec95c Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Fri, 6 Aug 2021 23:12:18 +0200 Subject: 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 Signed-off-by: Heiner Kallweit Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-i801.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers/i2c') 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; } -- cgit