mirror of https://gitee.com/openkylin/linux.git
V4L/DVB (6457): msp3400: convert to bus-based I2C API
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
77566dd724
commit
79518dafd5
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@ -53,6 +53,7 @@
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#include <linux/videodev.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-i2c-drv-legacy.h>
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#include <media/tvaudio.h>
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#include <media/msp3400.h>
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#include <linux/kthread.h>
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@ -783,7 +784,6 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
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static int msp_suspend(struct i2c_client *client, pm_message_t state)
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{
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v4l_dbg(1, msp_debug, client, "suspend\n");
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msp_reset(client);
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return 0;
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@ -791,7 +791,6 @@ static int msp_suspend(struct i2c_client *client, pm_message_t state)
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static int msp_resume(struct i2c_client *client)
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{
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v4l_dbg(1, msp_debug, client, "resume\n");
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msp_wake_thread(client);
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return 0;
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@ -799,11 +798,8 @@ static int msp_resume(struct i2c_client *client)
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/* ----------------------------------------------------------------------- */
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static struct i2c_driver i2c_driver;
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static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
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static int msp_probe(struct i2c_client *client)
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{
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struct i2c_client *client;
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struct msp_state *state;
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int (*thread_func)(void *data) = NULL;
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int msp_hard;
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@ -812,24 +808,15 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
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int msp_product, msp_prod_hi, msp_prod_lo;
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int msp_rom;
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client = kzalloc(sizeof(*client), GFP_KERNEL);
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if (!client)
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return -ENOMEM;
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client->addr = address;
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client->adapter = adapter;
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client->driver = &i2c_driver;
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snprintf(client->name, sizeof(client->name) - 1, "msp3400");
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if (msp_reset(client) == -1) {
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v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
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kfree(client);
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return 0;
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}
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state = kzalloc(sizeof(*state), GFP_KERNEL);
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if (!state) {
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kfree(client);
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return -ENOMEM;
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}
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@ -857,7 +844,6 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
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if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
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v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
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kfree(state);
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kfree(client);
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return 0;
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}
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@ -919,7 +905,7 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
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}
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/* hello world :-) */
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v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
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v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, client->addr << 1, client->adapter->name);
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v4l_info(client, "%s ", client->name);
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if (state->has_nicam && state->has_radio)
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printk("supports nicam and radio, ");
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@ -954,24 +940,12 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
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v4l_warn(client, "kernel_thread() failed\n");
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msp_wake_thread(client);
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}
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/* done */
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i2c_attach_client(client);
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return 0;
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}
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static int msp_probe(struct i2c_adapter *adapter)
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{
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if (adapter->class & I2C_CLASS_TV_ANALOG)
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return i2c_probe(adapter, &addr_data, msp_attach);
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return 0;
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}
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static int msp_detach(struct i2c_client *client)
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static int msp_remove(struct i2c_client *client)
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{
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struct msp_state *state = i2c_get_clientdata(client);
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int err;
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/* shutdown control thread */
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if (state->kthread) {
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@ -980,43 +954,22 @@ static int msp_detach(struct i2c_client *client)
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}
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msp_reset(client);
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err = i2c_detach_client(client);
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if (err) {
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return err;
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}
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kfree(state);
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kfree(client);
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return 0;
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}
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/* ----------------------------------------------------------------------- */
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/* i2c implementation */
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static struct i2c_driver i2c_driver = {
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.id = I2C_DRIVERID_MSP3400,
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.attach_adapter = msp_probe,
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.detach_client = msp_detach,
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static struct v4l2_i2c_driver_data v4l2_i2c_data = {
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.name = "msp3400",
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.driverid = I2C_DRIVERID_MSP3400,
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.command = msp_command,
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.probe = msp_probe,
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.remove = msp_remove,
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.suspend = msp_suspend,
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.resume = msp_resume,
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.command = msp_command,
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.driver = {
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.name = "msp3400",
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},
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.resume = msp_resume,
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};
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static int __init msp3400_init_module(void)
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{
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return i2c_add_driver(&i2c_driver);
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}
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static void __exit msp3400_cleanup_module(void)
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{
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i2c_del_driver(&i2c_driver);
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}
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module_init(msp3400_init_module);
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module_exit(msp3400_cleanup_module);
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/*
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* Overrides for Emacs so that we follow Linus's tabbing style.
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