Commit a39bd92e authored by Vadim Pasternak's avatar Vadim Pasternak Committed by Wolfram Sang
Browse files

i2c: mux: mlxcpld: Add callback to notify mux creation completion 



Add notification to inform caller that mux objects array has been
created. It allows to user, invoked platform device registration for
"i2c-mux-mlxcpld" driver, to be notified that mux infrastructure is
available, and thus some devices could be connected to this
infrastructure.

Signed-off-by: default avatarVadim Pasternak <vadimp@nvidia.com>
Acked-by: default avatarPeter Rosin <peda@axentia.se>
Signed-off-by: default avatarWolfram Sang <wsa@kernel.org>
parent 699c0506

drivers/i2c/muxes/i2c-mux-mlxcpld.c

+4 −0
Original line number Diff line number Diff line
@@ -159,6 +159,10 @@ static int mlxcpld_mux_probe(struct platform_device *pdev) 
			goto virt_reg_failed;

	}



	/* Notify caller when all channels' adapters are created. */

	if (pdata->completion_notify)

		pdata->completion_notify(pdata->handle, muxc->parent, muxc->adapter);



	return 0;



virt_reg_failed:

include/linux/platform_data/mlxcpld.h

+5 −0
Original line number Diff line number Diff line
@@ -15,12 +15,17 @@ 
 * @num_adaps - number of adapters

 * @sel_reg_addr - mux select register offset in CPLD space

 * @reg_size: register size in bytes

 * @handle: handle to be passed by callback

 * @completion_notify: callback to notify when all the adapters are created

 */

struct mlxcpld_mux_plat_data {

	int *chan_ids;

	int num_adaps;

	int sel_reg_addr;

	u8 reg_size;

	void *handle;

	int (*completion_notify)(void *handle, struct i2c_adapter *parent,

				 struct i2c_adapter *adapters[]);

};



#endif /* _LINUX_I2C_MLXCPLD_H */