media: em28xx-i2c: fix most coding style issues
There are a number of coding style issues at em28xx-i2c. Fix most of them, by using checkpatch in strict mode to point for it. Automatic fixes were made with --fix-inplace, but those were complemented by manual work. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>hifive-unleashed-5.1
Mauro Carvalho Chehab
parent
349ac5bba1
commit
8adbc7d68a
|
|
@ -18,7 +18,6 @@
|
|||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
|
||||
|
||||
#include "em28xx.h"
|
||||
|
||||
#include <linux/module.h>
|
||||
|
|
@ -47,7 +46,6 @@ MODULE_PARM_DESC(i2c_debug, "i2c debug message level (1: normal debug, 2: show I
|
|||
"i2c: %s: " fmt, __func__, ## arg); \
|
||||
} while (0)
|
||||
|
||||
|
||||
/*
|
||||
* Time in msecs to wait for i2c xfers to finish.
|
||||
* 35ms is the maximum time a SMBUS device could wait when
|
||||
|
|
@ -91,7 +89,6 @@ static int em2800_i2c_send_bytes(struct em28xx *dev, u8 addr, u8 *buf, u16 len)
|
|||
if (len < 1 || len > 4)
|
||||
return -EOPNOTSUPP;
|
||||
|
||||
BUG_ON(len < 1 || len > 4);
|
||||
b2[5] = 0x80 + len - 1;
|
||||
b2[4] = addr;
|
||||
b2[3] = buf[0];
|
||||
|
|
@ -125,7 +122,7 @@ static int em2800_i2c_send_bytes(struct em28xx *dev, u8 addr, u8 *buf, u16 len)
|
|||
ret);
|
||||
return ret;
|
||||
}
|
||||
msleep(5);
|
||||
usleep_range(5000, 6000);
|
||||
}
|
||||
dprintk(0, "write to i2c device at 0x%x timed out\n", addr);
|
||||
return -ETIMEDOUT;
|
||||
|
|
@ -172,14 +169,13 @@ static int em2800_i2c_recv_bytes(struct em28xx *dev, u8 addr, u8 *buf, u16 len)
|
|||
ret);
|
||||
return ret;
|
||||
}
|
||||
msleep(5);
|
||||
usleep_range(5000, 6000);
|
||||
}
|
||||
if (ret != 0x84 + len - 1) {
|
||||
if (ret != 0x84 + len - 1)
|
||||
dprintk(0, "read from i2c device at 0x%x timed out\n", addr);
|
||||
}
|
||||
|
||||
/* get the received message */
|
||||
ret = dev->em28xx_read_reg_req_len(dev, 0x00, 4-len, buf2, len);
|
||||
ret = dev->em28xx_read_reg_req_len(dev, 0x00, 4 - len, buf2, len);
|
||||
if (ret != len) {
|
||||
dev_warn(&dev->intf->dev,
|
||||
"reading from i2c device at 0x%x failed: couldn't get the received message from the bridge (error=%i)\n",
|
||||
|
|
@ -231,12 +227,11 @@ static int em28xx_i2c_send_bytes(struct em28xx *dev, u16 addr, u8 *buf,
|
|||
"writing to i2c device at 0x%x failed (error=%i)\n",
|
||||
addr, ret);
|
||||
return ret;
|
||||
} else {
|
||||
dev_warn(&dev->intf->dev,
|
||||
"%i bytes write to i2c device at 0x%x requested, but %i bytes written\n",
|
||||
len, addr, ret);
|
||||
return -EIO;
|
||||
}
|
||||
dev_warn(&dev->intf->dev,
|
||||
"%i bytes write to i2c device at 0x%x requested, but %i bytes written\n",
|
||||
len, addr, ret);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/* wait for completion */
|
||||
|
|
@ -255,7 +250,7 @@ static int em28xx_i2c_send_bytes(struct em28xx *dev, u16 addr, u8 *buf,
|
|||
ret);
|
||||
return ret;
|
||||
}
|
||||
msleep(5);
|
||||
usleep_range(5000, 6000);
|
||||
/*
|
||||
* NOTE: do we really have to wait for success ?
|
||||
* Never seen anything else than 0x00 or 0x10
|
||||
|
|
@ -378,12 +373,12 @@ static int em25xx_bus_B_send_bytes(struct em28xx *dev, u16 addr, u8 *buf,
|
|||
"writing to i2c device at 0x%x failed (error=%i)\n",
|
||||
addr, ret);
|
||||
return ret;
|
||||
} else {
|
||||
dev_warn(&dev->intf->dev,
|
||||
"%i bytes write to i2c device at 0x%x requested, but %i bytes written\n",
|
||||
len, addr, ret);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
dev_warn(&dev->intf->dev,
|
||||
"%i bytes write to i2c device at 0x%x requested, but %i bytes written\n",
|
||||
len, addr, ret);
|
||||
return -EIO;
|
||||
}
|
||||
/* Check success */
|
||||
ret = dev->em28xx_read_reg_req(dev, 0x08, 0x0000);
|
||||
|
|
@ -393,7 +388,8 @@ static int em25xx_bus_B_send_bytes(struct em28xx *dev, u16 addr, u8 *buf,
|
|||
*/
|
||||
if (!ret)
|
||||
return len;
|
||||
else if (ret > 0) {
|
||||
|
||||
if (ret > 0) {
|
||||
dprintk(1, "Bus B R08 returned 0x%02x: I2C ACK error\n", ret);
|
||||
return -ENXIO;
|
||||
}
|
||||
|
|
@ -447,7 +443,8 @@ static int em25xx_bus_B_recv_bytes(struct em28xx *dev, u16 addr, u8 *buf,
|
|||
*/
|
||||
if (!ret)
|
||||
return len;
|
||||
else if (ret > 0) {
|
||||
|
||||
if (ret > 0) {
|
||||
dprintk(1, "Bus B R08 returned 0x%02x: I2C ACK error\n", ret);
|
||||
return -ENXIO;
|
||||
}
|
||||
|
|
@ -535,13 +532,15 @@ static int em28xx_i2c_xfer(struct i2c_adapter *i2c_adap,
|
|||
{
|
||||
struct em28xx_i2c_bus *i2c_bus = i2c_adap->algo_data;
|
||||
struct em28xx *dev = i2c_bus->dev;
|
||||
unsigned bus = i2c_bus->bus;
|
||||
unsigned int bus = i2c_bus->bus;
|
||||
int addr, rc, i;
|
||||
u8 reg;
|
||||
|
||||
/* prevent i2c xfer attempts after device is disconnected
|
||||
some fe's try to do i2c writes/reads from their release
|
||||
interfaces when called in disconnect path */
|
||||
/*
|
||||
* prevent i2c xfer attempts after device is disconnected
|
||||
* some fe's try to do i2c writes/reads from their release
|
||||
* interfaces when called in disconnect path
|
||||
*/
|
||||
if (dev->disconnected)
|
||||
return -ENODEV;
|
||||
|
||||
|
|
@ -624,12 +623,13 @@ static inline unsigned long em28xx_hash_mem(char *buf, int length, int bits)
|
|||
if (len == length) {
|
||||
c = (char)len;
|
||||
len = -1;
|
||||
} else
|
||||
} else {
|
||||
c = *buf++;
|
||||
}
|
||||
l = (l << 8) | c;
|
||||
len++;
|
||||
if ((len & (32 / 8 - 1)) == 0)
|
||||
hash = ((hash^l) * 0x9e370001UL);
|
||||
hash = ((hash ^ l) * 0x9e370001UL);
|
||||
} while (len);
|
||||
|
||||
return (hash >> (32 - bits)) & 0xffffffffUL;
|
||||
|
|
@ -639,7 +639,7 @@ static inline unsigned long em28xx_hash_mem(char *buf, int length, int bits)
|
|||
* Helper function to read data blocks from i2c clients with 8 or 16 bit
|
||||
* address width, 8 bit register width and auto incrementation been activated
|
||||
*/
|
||||
static int em28xx_i2c_read_block(struct em28xx *dev, unsigned bus, u16 addr,
|
||||
static int em28xx_i2c_read_block(struct em28xx *dev, unsigned int bus, u16 addr,
|
||||
bool addr_w16, u16 len, u8 *data)
|
||||
{
|
||||
int remain = len, rsize, rsize_max, ret;
|
||||
|
|
@ -651,7 +651,8 @@ static int em28xx_i2c_read_block(struct em28xx *dev, unsigned bus, u16 addr,
|
|||
/* Select address */
|
||||
buf[0] = addr >> 8;
|
||||
buf[1] = addr & 0xff;
|
||||
ret = i2c_master_send(&dev->i2c_client[bus], buf + !addr_w16, 1 + addr_w16);
|
||||
ret = i2c_master_send(&dev->i2c_client[bus],
|
||||
buf + !addr_w16, 1 + addr_w16);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
/* Read data */
|
||||
|
|
@ -676,7 +677,7 @@ static int em28xx_i2c_read_block(struct em28xx *dev, unsigned bus, u16 addr,
|
|||
return len;
|
||||
}
|
||||
|
||||
static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned bus,
|
||||
static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned int bus,
|
||||
u8 **eedata, u16 *eedata_len)
|
||||
{
|
||||
const u16 len = 256;
|
||||
|
|
@ -704,7 +705,7 @@ static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned bus,
|
|||
}
|
||||
|
||||
data = kzalloc(len, GFP_KERNEL);
|
||||
if (data == NULL)
|
||||
if (!data)
|
||||
return -ENOMEM;
|
||||
|
||||
/* Read EEPROM content */
|
||||
|
|
@ -796,7 +797,10 @@ static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned bus,
|
|||
return 0;
|
||||
}
|
||||
|
||||
/* TODO: decrypt eeprom data for camera bridges (em25xx, em276x+) */
|
||||
/*
|
||||
* TODO: decrypt eeprom data for camera bridges
|
||||
* (em25xx, em276x+)
|
||||
*/
|
||||
|
||||
} else if (!dev->eeprom_addrwidth_16bit &&
|
||||
data[0] == 0x1a && data[1] == 0xeb &&
|
||||
|
|
@ -886,8 +890,8 @@ static u32 functionality(struct i2c_adapter *i2c_adap)
|
|||
{
|
||||
struct em28xx_i2c_bus *i2c_bus = i2c_adap->algo_data;
|
||||
|
||||
if ((i2c_bus->algo_type == EM28XX_I2C_ALGO_EM28XX) ||
|
||||
(i2c_bus->algo_type == EM28XX_I2C_ALGO_EM25XX_BUS_B)) {
|
||||
if (i2c_bus->algo_type == EM28XX_I2C_ALGO_EM28XX ||
|
||||
i2c_bus->algo_type == EM28XX_I2C_ALGO_EM25XX_BUS_B) {
|
||||
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
|
||||
} else if (i2c_bus->algo_type == EM28XX_I2C_ALGO_EM2800) {
|
||||
return (I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL) &
|
||||
|
|
@ -920,7 +924,7 @@ static const struct i2c_client em28xx_client_template = {
|
|||
* incomplete list of known devices
|
||||
*/
|
||||
static char *i2c_devs[128] = {
|
||||
[0x1c >> 1] = "lgdt330x",
|
||||
[0x1c >> 1] = "lgdt330x",
|
||||
[0x3e >> 1] = "remote IR sensor",
|
||||
[0x4a >> 1] = "saa7113h",
|
||||
[0x52 >> 1] = "drxk",
|
||||
|
|
@ -943,7 +947,7 @@ static char *i2c_devs[128] = {
|
|||
* do_i2c_scan()
|
||||
* check i2c address range for devices
|
||||
*/
|
||||
void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus)
|
||||
void em28xx_do_i2c_scan(struct em28xx *dev, unsigned int bus)
|
||||
{
|
||||
u8 i2c_devicelist[128];
|
||||
unsigned char buf;
|
||||
|
|
@ -971,13 +975,14 @@ void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus)
|
|||
* em28xx_i2c_register()
|
||||
* register i2c bus
|
||||
*/
|
||||
int em28xx_i2c_register(struct em28xx *dev, unsigned bus,
|
||||
int em28xx_i2c_register(struct em28xx *dev, unsigned int bus,
|
||||
enum em28xx_i2c_algo_type algo_type)
|
||||
{
|
||||
int retval;
|
||||
|
||||
BUG_ON(!dev->em28xx_write_regs || !dev->em28xx_read_reg);
|
||||
BUG_ON(!dev->em28xx_write_regs_req || !dev->em28xx_read_reg_req);
|
||||
if (WARN_ON(!dev->em28xx_write_regs || !dev->em28xx_read_reg ||
|
||||
!dev->em28xx_write_regs_req || !dev->em28xx_read_reg_req))
|
||||
return -ENODEV;
|
||||
|
||||
if (bus >= NUM_I2C_BUSES)
|
||||
return -ENODEV;
|
||||
|
|
@ -1004,8 +1009,9 @@ int em28xx_i2c_register(struct em28xx *dev, unsigned bus,
|
|||
|
||||
/* Up to now, all eeproms are at bus 0 */
|
||||
if (!bus) {
|
||||
retval = em28xx_i2c_eeprom(dev, bus, &dev->eedata, &dev->eedata_len);
|
||||
if ((retval < 0) && (retval != -ENODEV)) {
|
||||
retval = em28xx_i2c_eeprom(dev, bus,
|
||||
&dev->eedata, &dev->eedata_len);
|
||||
if (retval < 0 && retval != -ENODEV) {
|
||||
dev_err(&dev->intf->dev,
|
||||
"%s: em28xx_i2_eeprom failed! retval [%d]\n",
|
||||
__func__, retval);
|
||||
|
|
@ -1022,7 +1028,7 @@ int em28xx_i2c_register(struct em28xx *dev, unsigned bus,
|
|||
* em28xx_i2c_unregister()
|
||||
* unregister i2c_bus
|
||||
*/
|
||||
int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus)
|
||||
int em28xx_i2c_unregister(struct em28xx *dev, unsigned int bus)
|
||||
{
|
||||
if (bus >= NUM_I2C_BUSES)
|
||||
return -ENODEV;
|
||||
|
|
|
|||
Loading…
Reference in New Issue