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i2c: designware: Use the i2c_mark_adapter_suspended/resumed() helpers 

Use the i2c_mark_adapter_suspended/resumed() i2c-core helpers and rely
on the i2c-core's suspended checking instead of using DIY code.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Hans de Goede 2022-02-23 14:48:39 +01:00 committed by Wolfram Sang
parent c57813b8b2
commit 80704a84a9
4 changed files with 4 additions and 20 deletions
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2
drivers/i2c/busses/i2c-designware-core.h
View File

@ -236,7 +236,6 @@ struct reset_control;
* @set_sda_hold_time: callback to retrieve IP specific SDA hold timing
* @mode: operation mode - DW_IC_MASTER or DW_IC_SLAVE
* @rinfo: I²C GPIO recovery information
* @suspended: set to true if the controller is suspended
*
* HCNT and LCNT parameters can be used if the platform knows more accurate
* values than the one computed based only on the input clock frequency.
@ -295,7 +294,6 @@ struct dw_i2c_dev {
int (*set_sda_hold_time)(struct dw_i2c_dev *dev);
int mode;
struct i2c_bus_recovery_info rinfo;
bool suspended;
};
#define ACCESS_INTR_MASK BIT(0)

5
drivers/i2c/busses/i2c-designware-master.c
View File

@ -567,11 +567,6 @@ i2c_dw_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
goto done_nolock;
}
if (dev_WARN_ONCE(dev->dev, dev->suspended, "Transfer while suspended\n")) {
ret = -ESHUTDOWN;
goto done_nolock;
}
reinit_completion(&dev->cmd_complete);
dev->msgs = msgs;
dev->msgs_num = num;

8
drivers/i2c/busses/i2c-designware-pcidrv.c
View File

@ -206,9 +206,7 @@ static int __maybe_unused i2c_dw_pci_suspend(struct device *dev)
{
struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
i2c_lock_bus(&i_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
i_dev->suspended = true;
i2c_unlock_bus(&i_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
i2c_mark_adapter_suspended(&i_dev->adapter);
return i2c_dw_pci_runtime_suspend(dev);
}
@ -227,9 +225,7 @@ static int __maybe_unused i2c_dw_pci_resume(struct device *dev)
ret = i2c_dw_pci_runtime_resume(dev);
i2c_lock_bus(&i_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
i_dev->suspended = false;
i2c_unlock_bus(&i_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
i2c_mark_adapter_resumed(&i_dev->adapter);
return ret;
}

9
drivers/i2c/busses/i2c-designware-platdrv.c
View File

@ -445,9 +445,7 @@ static int dw_i2c_plat_suspend(struct device *dev)
{
struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
i2c_lock_bus(&i_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
i_dev->suspended = true;
i2c_unlock_bus(&i_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
i2c_mark_adapter_suspended(&i_dev->adapter);
return dw_i2c_plat_runtime_suspend(dev);
}
@ -469,10 +467,7 @@ static int dw_i2c_plat_resume(struct device *dev)
struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
dw_i2c_plat_runtime_resume(dev);
i2c_lock_bus(&i_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
i_dev->suspended = false;
i2c_unlock_bus(&i_dev->adapter, I2C_LOCK_ROOT_ADAPTER);
i2c_mark_adapter_resumed(&i_dev->adapter);
return 0;
}