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i2c: smbus: Use device_*() functions instead of of_*() 

Change of_*() functions to device_*() for firmware agnostic usage.
This allows to have the smbus_alert interrupt without any changes
in the controller drivers using the ACPI table.

Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Akhil R 2022-01-28 17:14:27 +05:30 committed by Wolfram Sang
parent 20e8ef5c7f
commit a263a84088
4 changed files with 13 additions and 11 deletions
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2
drivers/i2c/i2c-core-base.c
View File

@ -1479,7 +1479,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
goto out_list;
}
res = of_i2c_setup_smbus_alert(adap);
res = i2c_setup_smbus_alert(adap);
if (res)
goto out_reg;

11
drivers/i2c/i2c-core-smbus.c
View File

@ -14,6 +14,7 @@
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/i2c-smbus.h>
#include <linux/property.h>
#include <linux/slab.h>
#include "i2c-core.h"
@ -701,13 +702,13 @@ struct i2c_client *i2c_new_smbus_alert_device(struct i2c_adapter *adapter,
}
EXPORT_SYMBOL_GPL(i2c_new_smbus_alert_device);
#if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED(CONFIG_OF)
int of_i2c_setup_smbus_alert(struct i2c_adapter *adapter)
#if IS_ENABLED(CONFIG_I2C_SMBUS)
int i2c_setup_smbus_alert(struct i2c_adapter *adapter)
{
int irq;
irq = of_property_match_string(adapter->dev.of_node, "interrupt-names",
"smbus_alert");
irq = device_property_match_string(adapter->dev.parent, "interrupt-names",
"smbus_alert");
if (irq == -EINVAL || irq == -ENODATA)
return 0;
else if (irq < 0)
@ -715,5 +716,5 @@ int of_i2c_setup_smbus_alert(struct i2c_adapter *adapter)
return PTR_ERR_OR_ZERO(i2c_new_smbus_alert_device(adapter, NULL));
}
EXPORT_SYMBOL_GPL(of_i2c_setup_smbus_alert);
EXPORT_SYMBOL_GPL(i2c_setup_smbus_alert);
#endif

5
drivers/i2c/i2c-smbus.c
View File

@ -13,7 +13,7 @@
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_irq.h>
#include <linux/property.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
@ -128,7 +128,8 @@ static int smbalert_probe(struct i2c_client *ara,
if (setup) {
irq = setup->irq;
} else {
irq = of_irq_get_byname(adapter->dev.of_node, "smbus_alert");
irq = fwnode_irq_get_byname(dev_fwnode(adapter->dev.parent),
"smbus_alert");
if (irq <= 0)
return irq;
}

6
include/linux/i2c-smbus.h
View File

@ -30,10 +30,10 @@ struct i2c_client *i2c_new_smbus_alert_device(struct i2c_adapter *adapter,
struct i2c_smbus_alert_setup *setup);
int i2c_handle_smbus_alert(struct i2c_client *ara);
#if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED(CONFIG_OF)
int of_i2c_setup_smbus_alert(struct i2c_adapter *adap);
#if IS_ENABLED(CONFIG_I2C_SMBUS)
int i2c_setup_smbus_alert(struct i2c_adapter *adap);
#else
static inline int of_i2c_setup_smbus_alert(struct i2c_adapter *adap)
static inline int i2c_setup_smbus_alert(struct i2c_adapter *adap)
{
return 0;
}