[PATCH v1 5/5] i2c: designware: Remove ->disable() callback

Andy Shevchenko
2024-08-22T18:04:31Z

Commit 90312351fd1e ("i2c: designware: MASTER mode as separated driver")
introduced ->disable() callback but there is no real use for it. Both
i2c-designware-master.c and i2c-designware-slave.c set it to the same
i2c_dw_disable() and scope is inside the same kernel module.

That said, replace the callback by explicitly calling the i2c_dw_disable().

Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/i2c/busses/i2c-designware-common.c | 1 +
drivers/i2c/busses/i2c-designware-core.h | 4 +---
drivers/i2c/busses/i2c-designware-master.c | 1 -
drivers/i2c/busses/i2c-designware-pcidrv.c | 5 +++--
drivers/i2c/busses/i2c-designware-platdrv.c | 4 ++--
drivers/i2c/busses/i2c-designware-slave.c | 3 +--
6 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c
index 2601876f76ad..b60c55587e48 100644
--- a/drivers/i2c/busses/i2c-designware-common.c
+++ b/drivers/i2c/busses/i2c-designware-common.c
@@ -734,6 +734,7 @@ void i2c_dw_disable(struct dw_i2c_dev *dev)

i2c_dw_release_lock(dev);
}
+EXPORT_SYMBOL_GPL(i2c_dw_disable);

MODULE_DESCRIPTION("Synopsys DesignWare I2C bus adapter core");
MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h
index b9f97f4eedf5..723d599cca93 100644
--- a/drivers/i2c/busses/i2c-designware-core.h
+++ b/drivers/i2c/busses/i2c-designware-core.h
@@ -237,7 +237,6 @@ struct reset_control;
* @semaphore_idx: Index of table with semaphore type attached to the bus. It's
* -1 if there is no semaphore.
* @shared_with_punit: true if this bus is shared with the SoCs PUNIT
- * @disable: function to disable the controller
* @init: function to initialize the I2C hardware
* @set_sda_hold_time: callback to retrieve IP specific SDA hold timing
* @mode: operation mode - DW_IC_MASTER or DW_IC_SLAVE
@@ -295,7 +294,6 @@ struct dw_i2c_dev {
void (*release_lock)(void);
int semaphore_idx;
bool shared_with_punit;
- void (*disable)(struct dw_i2c_dev *dev);
int (*init)(struct dw_i2c_dev *dev);
int (*set_sda_hold_time)(struct dw_i2c_dev *dev);
int mode;
@@ -342,7 +340,6 @@ int i2c_dw_wait_bus_not_busy(struct dw_i2c_dev *dev);
int i2c_dw_handle_tx_abort(struct dw_i2c_dev *dev);
int i2c_dw_set_fifo_size(struct dw_i2c_dev *dev);
u32 i2c_dw_func(struct i2c_adapter *adap);
-void i2c_dw_disable(struct dw_i2c_dev *dev);

static inline void __i2c_dw_enable(struct dw_i2c_dev *dev)
{
@@ -375,6 +372,7 @@ static inline void __i2c_dw_read_intr_mask(struct dw_i2c_dev *dev,
}

void __i2c_dw_disable(struct dw_i2c_dev *dev);
+void i2c_dw_disable(struct dw_i2c_dev *dev);

extern void i2c_dw_configure_master(struct dw_i2c_dev *dev);
extern int i2c_dw_probe_master(struct dw_i2c_dev *dev);
diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c
index a890a73e197e..e46f1b22c360 100644
--- a/drivers/i2c/busses/i2c-designware-master.c
+++ b/drivers/i2c/busses/i2c-designware-master.c
@@ -949,7 +949,6 @@ int i2c_dw_probe_master(struct dw_i2c_dev *dev)
init_completion(&dev->cmd_complete);

dev->init = i2c_dw_init_master;
- dev->disable = i2c_dw_disable;

ret = i2c_dw_init_regmap(dev);
if (ret)
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index 2f2085700594..dd188ccd961e 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -198,7 +198,7 @@ static int __maybe_unused i2c_dw_pci_runtime_suspend(struct device *dev)
{
struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);

- i_dev->disable(i_dev);
+ i2c_dw_disable(i_dev);
return 0;
}

@@ -339,7 +339,8 @@ static void i2c_dw_pci_remove(struct pci_dev *pdev)
{
struct dw_i2c_dev *dev = pci_get_drvdata(pdev);

- dev->disable(dev);
+ i2c_dw_disable(dev);
+
pm_runtime_forbid(&pdev->dev);
pm_runtime_get_noresume(&pdev->dev);

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 7a3f4e96d59e..e49c68c6e142 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -328,7 +328,7 @@ static void dw_i2c_plat_remove(struct platform_device *pdev)

i2c_del_adapter(&dev->adapter);

- dev->disable(dev);
+ i2c_dw_disable(dev);

pm_runtime_dont_use_autosuspend(&pdev->dev);
pm_runtime_put_sync(&pdev->dev);
@@ -357,7 +357,7 @@ static int dw_i2c_plat_runtime_suspend(struct device *dev)
if (i_dev->shared_with_punit)
return 0;

- i_dev->disable(i_dev);
+ i2c_dw_disable(i_dev);
i2c_dw_prepare_clk(i_dev, false);

return 0;
diff --git a/drivers/i2c/busses/i2c-designware-slave.c b/drivers/i2c/busses/i2c-designware-slave.c
index 5995361b5615..7035296aa24c 100644
--- a/drivers/i2c/busses/i2c-designware-slave.c
+++ b/drivers/i2c/busses/i2c-designware-slave.c
@@ -90,7 +90,7 @@ static int i2c_dw_unreg_slave(struct i2c_client *slave)
struct dw_i2c_dev *dev = i2c_get_adapdata(slave->adapter);

regmap_write(dev->map, DW_IC_INTR_MASK, 0);
- dev->disable(dev);
+ i2c_dw_disable(dev);
synchronize_irq(dev->irq);
dev->slave = NULL;
pm_runtime_put(dev->dev);
@@ -237,7 +237,6 @@ int i2c_dw_probe_slave(struct dw_i2c_dev *dev)
int ret;

dev->init = i2c_dw_init_slave;
- dev->disable = i2c_dw_disable;

ret = i2c_dw_init_regmap(dev);
if (ret)
--
2.43.0.rc1.1336.g36b5255a03ac