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V4L/DVB (6737): wm8775: codingstyle cleanup

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Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil 2007-11-01 07:35:41 -03:00 • committed by Mauro Carvalho Chehab
parent 8c85454a59
commit 842441d42d
1 changed files with 38 additions and 28 deletions
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66
drivers/media/video/wm8775.c
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@ -68,17 +68,15 @@ static int wm8775_write(struct i2c_client *client, int reg, u16 val)
return -1; return -1;
} }
for (i = 0; i < 3; i++) { for (i = 0; i < 3; i++)
if (i2c_smbus_write_byte_data(client, (reg << 1) | if (i2c_smbus_write_byte_data(client,
(val >> 8), val & 0xff) == 0) { (reg << 1) | (val >> 8), val & 0xff) == 0)
return 0; return 0;
}
}
v4l_err(client, "I2C: cannot write %03x to register R%d\n", val, reg); v4l_err(client, "I2C: cannot write %03x to register R%d\n", val, reg);
return -1; return -1;
} }
static int wm8775_command(struct i2c_client *client, unsigned int cmd, void *arg) static int wm8775_command(struct i2c_client *client, unsigned cmd, void *arg)
{ {
struct wm8775_state *state = i2c_get_clientdata(client); struct wm8775_state *state = i2c_get_clientdata(client);
struct v4l2_routing *route = arg; struct v4l2_routing *route = arg;
@ -127,7 +125,8 @@ static int wm8775_command(struct i2c_client *client, unsigned int cmd, void *arg
break; break;
case VIDIOC_G_CHIP_IDENT: case VIDIOC_G_CHIP_IDENT:
return v4l2_chip_ident_i2c_client(client, arg, V4L2_IDENT_WM8775, 0); return v4l2_chip_ident_i2c_client(client,
arg, V4L2_IDENT_WM8775, 0);
case VIDIOC_LOG_STATUS: case VIDIOC_LOG_STATUS:
v4l_info(client, "Input: %d%s\n", state->input, v4l_info(client, "Input: %d%s\n", state->input,
@ -168,34 +167,45 @@ static int wm8775_probe(struct i2c_client *client)
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EIO; return -EIO;
v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); v4l_info(client, "chip found @ 0x%x (%s)\n",
client->addr << 1, client->adapter->name);
state = kmalloc(sizeof(struct wm8775_state), GFP_KERNEL); state = kmalloc(sizeof(struct wm8775_state), GFP_KERNEL);
if (state == NULL) { if (state == NULL)
return -ENOMEM; return -ENOMEM;
}
state->input = 2; state->input = 2;
state->muted = 0; state->muted = 0;
i2c_set_clientdata(client, state); i2c_set_clientdata(client, state);
/* initialize wm8775 */ /* Initialize wm8775 */
wm8775_write(client, R23, 0x000); /* RESET */
wm8775_write(client, R7, 0x000); /* Disable zero cross detect timeout */ /* RESET */
wm8775_write(client, R11, 0x021); /* Left justified, 24-bit mode */ wm8775_write(client, R23, 0x000);
wm8775_write(client, R12, 0x102); /* Master mode, clock ratio 256fs */ /* Disable zero cross detect timeout */
wm8775_write(client, R13, 0x000); /* Powered up */ wm8775_write(client, R7, 0x000);
wm8775_write(client, R14, 0x1d4); /* ADC gain +2.5dB, enable zero cross */ /* Left justified, 24-bit mode */
wm8775_write(client, R15, 0x1d4); /* ADC gain +2.5dB, enable zero cross */ wm8775_write(client, R11, 0x021);
wm8775_write(client, R16, 0x1bf); /* ALC Stereo, ALC target level -1dB FS */ /* Master mode, clock ratio 256fs */
/* max gain +8dB */ wm8775_write(client, R12, 0x102);
wm8775_write(client, R17, 0x185); /* Enable gain control, use zero cross */ /* Powered up */
/* detection, ALC hold time 42.6 ms */ wm8775_write(client, R13, 0x000);
wm8775_write(client, R18, 0x0a2); /* ALC gain ramp up delay 34 s, */ /* ADC gain +2.5dB, enable zero cross */
/* ALC gain ramp down delay 33 ms */ wm8775_write(client, R14, 0x1d4);
wm8775_write(client, R19, 0x005); /* Enable noise gate, threshold -72dBfs */ /* ADC gain +2.5dB, enable zero cross */
wm8775_write(client, R20, 0x07a); /* Transient window 4ms, lower PGA gain */ wm8775_write(client, R15, 0x1d4);
/* limit -1dB */ /* ALC Stereo, ALC target level -1dB FS max gain +8dB */
wm8775_write(client, R21, 0x102); /* LRBOTH = 1, use input 2. */ wm8775_write(client, R16, 0x1bf);
/* Enable gain control, use zero cross detection,
ALC hold time 42.6 ms */
wm8775_write(client, R17, 0x185);
/* ALC gain ramp up delay 34 s, ALC gain ramp down delay 33 ms */
wm8775_write(client, R18, 0x0a2);
/* Enable noise gate, threshold -72dBfs */
wm8775_write(client, R19, 0x005);
/* Transient window 4ms, lower PGA gain limit -1dB */
wm8775_write(client, R20, 0x07a);
/* LRBOTH = 1, use input 2. */
wm8775_write(client, R21, 0x102);
return 0; return 0;
} }