V4L/DVB (6463): upd64031a: convert to bus-based I2C API (2b14e031) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/media/video/upd64031a.c

+12 −57

Original line number	Diff line number	Diff line
		@@ -28,6 +28,7 @@
		#include <linux/videodev2.h>
		#include <media/v4l2-common.h>
		#include <media/v4l2-chip-ident.h>
		#include <media/v4l2-i2c-drv-legacy.h>
		#include <media/upd64031a.h>

		// --------------------- read registers functions define -----------------------
		@@ -193,32 +194,18 @@ static int upd64031a_command(struct i2c_client client, unsigned int cmd, void

		/* i2c implementation */

		static struct i2c_driver i2c_driver;

		static int upd64031a_attach(struct i2c_adapter *adapter, int address, int kind)
		static int upd64031a_probe(struct i2c_client *client)
		{
		struct i2c_client *client;
		struct upd64031a_state *state;
		int i;

		if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		return 0;

		client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
		if (client == NULL) {
		return -ENOMEM;
		}

		client->addr = address;
		client->adapter = adapter;
		client->driver = &i2c_driver;
		snprintf(client->name, sizeof(client->name) - 1, "uPD64031A");

		v4l_info(client, "chip found @ 0x%x (%s)\n", address << 1, adapter->name);
		v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name);

		state = kmalloc(sizeof(struct upd64031a_state), GFP_KERNEL);
		if (state == NULL) {
		kfree(client);
		return -ENOMEM;
		}
		i2c_set_clientdata(client, state);
		@@ -229,54 +216,22 @@ static int upd64031a_attach(struct i2c_adapter *adapter, int address, int kind)
		for (i = 0; i < TOT_REGS; i++) {
		upd64031a_write(client, i, state->regs[i]);
		}

		i2c_attach_client(client);

		return 0;
		}

		static int upd64031a_probe(struct i2c_adapter *adapter)
		static int upd64031a_remove(struct i2c_client *client)
		{
		if (adapter->class & I2C_CLASS_TV_ANALOG)
		return i2c_probe(adapter, &addr_data, upd64031a_attach);
		return 0;
		}

		static int upd64031a_detach(struct i2c_client *client)
		{
		int err;

		err = i2c_detach_client(client);
		if (err)
		return err;

		kfree(client);
		kfree(i2c_get_clientdata(client));
		return 0;
		}

		/* ----------------------------------------------------------------------- */

		/* i2c implementation */
		static struct i2c_driver i2c_driver = {
		.driver = {

		static struct v4l2_i2c_driver_data v4l2_i2c_data = {
		.name = "upd64031a",
		},
		.id = I2C_DRIVERID_UPD64031A,
		.attach_adapter = upd64031a_probe,
		.detach_client = upd64031a_detach,
		.driverid = I2C_DRIVERID_UPD64031A,
		.command = upd64031a_command,
		.probe = upd64031a_probe,
		.remove = upd64031a_remove,
		};


		static int __init upd64031a_init_module(void)
		{
		return i2c_add_driver(&i2c_driver);
		}

		static void __exit upd64031a_exit_module(void)
		{
		i2c_del_driver(&i2c_driver);
		}

		module_init(upd64031a_init_module);
		module_exit(upd64031a_exit_module);