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Commit 7ef803a9 authored by Isaac Assegai's avatar Isaac Assegai Committed by Greg Kroah-Hartman
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Staging: sm750fb: ddk750_swi2c.c: Replace spaces with tabs 

Replace spaces with tabs in ddk750_swi2c.c to
rectify the following checkpatch warnings:
WARNING: please, no spaces at the start of a line
Signed-off-by: default avatarIsaac Assegai <isaac.a.travers@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f27ece14
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Showing with 229 additions and 229 deletions
drivers/staging/sm750fb/ddk750_swi2c.c
View file @ 7ef803a9
...@@ -98,13 +98,13 @@ static void swI2CWait(void) ...@@ -98,13 +98,13 @@ static void swI2CWait(void)
*/ */
while(peekIO(0x3ce, 0x61) & 0x10); while(peekIO(0x3ce, 0x61) & 0x10);
#else #else
int i, Temp; int i, Temp;
for(i=0; i<600; i++) for(i=0; i<600; i++)
{ {
Temp = i; Temp = i;
Temp += i; Temp += i;
} }
#endif #endif
} }
...@@ -122,27 +122,27 @@ static void swI2CWait(void) ...@@ -122,27 +122,27 @@ static void swI2CWait(void)
*/ */
void swI2CSCL(unsigned char value) void swI2CSCL(unsigned char value)
{ {
unsigned long ulGPIOData; unsigned long ulGPIOData;
unsigned long ulGPIODirection; unsigned long ulGPIODirection;
ulGPIODirection = PEEK32(g_i2cClkGPIODataDirReg); ulGPIODirection = PEEK32(g_i2cClkGPIODataDirReg);
if (value) /* High */ if (value) /* High */
{ {
/* Set direction as input. This will automatically pull the signal up. */ /* Set direction as input. This will automatically pull the signal up. */
ulGPIODirection &= ~(1 << g_i2cClockGPIO); ulGPIODirection &= ~(1 << g_i2cClockGPIO);
POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection); POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
} }
else /* Low */ else /* Low */
{ {
/* Set the signal down */ /* Set the signal down */
ulGPIOData = PEEK32(g_i2cClkGPIODataReg); ulGPIOData = PEEK32(g_i2cClkGPIODataReg);
ulGPIOData &= ~(1 << g_i2cClockGPIO); ulGPIOData &= ~(1 << g_i2cClockGPIO);
POKE32(g_i2cClkGPIODataReg, ulGPIOData); POKE32(g_i2cClkGPIODataReg, ulGPIOData);
/* Set direction as output */ /* Set direction as output */
ulGPIODirection |= (1 << g_i2cClockGPIO); ulGPIODirection |= (1 << g_i2cClockGPIO);
POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection); POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
} }
} }
/* /*
...@@ -159,27 +159,27 @@ void swI2CSCL(unsigned char value) ...@@ -159,27 +159,27 @@ void swI2CSCL(unsigned char value)
*/ */
void swI2CSDA(unsigned char value) void swI2CSDA(unsigned char value)
{ {
unsigned long ulGPIOData; unsigned long ulGPIOData;
unsigned long ulGPIODirection; unsigned long ulGPIODirection;
ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg); ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
if (value) /* High */ if (value) /* High */
{ {
/* Set direction as input. This will automatically pull the signal up. */ /* Set direction as input. This will automatically pull the signal up. */
ulGPIODirection &= ~(1 << g_i2cDataGPIO); ulGPIODirection &= ~(1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection); POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
} }
else /* Low */ else /* Low */
{ {
/* Set the signal down */ /* Set the signal down */
ulGPIOData = PEEK32(g_i2cDataGPIODataReg); ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
ulGPIOData &= ~(1 << g_i2cDataGPIO); ulGPIOData &= ~(1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataReg, ulGPIOData); POKE32(g_i2cDataGPIODataReg, ulGPIOData);
/* Set direction as output */ /* Set direction as output */
ulGPIODirection |= (1 << g_i2cDataGPIO); ulGPIODirection |= (1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection); POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
} }
} }
/* /*
...@@ -190,23 +190,23 @@ void swI2CSDA(unsigned char value) ...@@ -190,23 +190,23 @@ void swI2CSDA(unsigned char value)
*/ */
static unsigned char swI2CReadSDA(void) static unsigned char swI2CReadSDA(void)
{ {
unsigned long ulGPIODirection; unsigned long ulGPIODirection;
unsigned long ulGPIOData; unsigned long ulGPIOData;
/* Make sure that the direction is input (High) */ /* Make sure that the direction is input (High) */
ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg); ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
if ((ulGPIODirection & (1 << g_i2cDataGPIO)) != (~(1 << g_i2cDataGPIO))) if ((ulGPIODirection & (1 << g_i2cDataGPIO)) != (~(1 << g_i2cDataGPIO)))
{ {
ulGPIODirection &= ~(1 << g_i2cDataGPIO); ulGPIODirection &= ~(1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection); POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
} }
/* Now read the SDA line */ /* Now read the SDA line */
ulGPIOData = PEEK32(g_i2cDataGPIODataReg); ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
if (ulGPIOData & (1 << g_i2cDataGPIO)) if (ulGPIOData & (1 << g_i2cDataGPIO))
return 1; return 1;
else else
return 0; return 0;
} }
/* /*
...@@ -214,7 +214,7 @@ static unsigned char swI2CReadSDA(void) ...@@ -214,7 +214,7 @@ static unsigned char swI2CReadSDA(void)
*/ */
static void swI2CAck(void) static void swI2CAck(void)
{ {
return; /* Single byte read is ok without it. */ return; /* Single byte read is ok without it. */
} }
/* /*
...@@ -222,10 +222,10 @@ static void swI2CAck(void) ...@@ -222,10 +222,10 @@ static void swI2CAck(void)
*/ */
static void swI2CStart(void) static void swI2CStart(void)
{ {
/* Start I2C */ /* Start I2C */
swI2CSDA(1); swI2CSDA(1);
swI2CSCL(1); swI2CSCL(1);
swI2CSDA(0); swI2CSDA(0);
} }
/* /*
...@@ -233,10 +233,10 @@ static void swI2CStart(void) ...@@ -233,10 +233,10 @@ static void swI2CStart(void)
*/ */
static void swI2CStop(void) static void swI2CStop(void)
{ {
/* Stop the I2C */ /* Stop the I2C */
swI2CSCL(1); swI2CSCL(1);
swI2CSDA(0); swI2CSDA(0);
swI2CSDA(1); swI2CSDA(1);
} }
/* /*
...@@ -251,60 +251,60 @@ static void swI2CStop(void) ...@@ -251,60 +251,60 @@ static void swI2CStop(void)
*/ */
static long swI2CWriteByte(unsigned char data) static long swI2CWriteByte(unsigned char data)
{ {
unsigned char value = data; unsigned char value = data;
int i; int i;
/* Sending the data bit by bit */ /* Sending the data bit by bit */
for (i=0; i<8; i++) for (i=0; i<8; i++)
{ {
/* Set SCL to low */ /* Set SCL to low */
swI2CSCL(0); swI2CSCL(0);
/* Send data bit */ /* Send data bit */
if ((value & 0x80) != 0) if ((value & 0x80) != 0)
swI2CSDA(1); swI2CSDA(1);
else else
swI2CSDA(0); swI2CSDA(0);
swI2CWait(); swI2CWait();
/* Toggle clk line to one */ /* Toggle clk line to one */
swI2CSCL(1); swI2CSCL(1);
swI2CWait(); swI2CWait();
/* Shift byte to be sent */ /* Shift byte to be sent */
value = value << 1; value = value << 1;
} }
/* Set the SCL Low and SDA High (prepare to get input) */ /* Set the SCL Low and SDA High (prepare to get input) */
swI2CSCL(0); swI2CSCL(0);
swI2CSDA(1); swI2CSDA(1);
/* Set the SCL High for ack */ /* Set the SCL High for ack */
swI2CWait(); swI2CWait();
swI2CSCL(1); swI2CSCL(1);
swI2CWait(); swI2CWait();
/* Read SDA, until SDA==0 */ /* Read SDA, until SDA==0 */
for(i=0; i<0xff; i++) for(i=0; i<0xff; i++)
{ {
if (!swI2CReadSDA()) if (!swI2CReadSDA())
break; break;
swI2CSCL(0); swI2CSCL(0);
swI2CWait(); swI2CWait();
swI2CSCL(1); swI2CSCL(1);
swI2CWait(); swI2CWait();
} }
/* Set the SCL Low and SDA High */ /* Set the SCL Low and SDA High */
swI2CSCL(0); swI2CSCL(0);
swI2CSDA(1); swI2CSDA(1);
if (i<0xff) if (i<0xff)
return 0; return 0;
else else
return -1; return -1;
} }
/* /*
...@@ -319,32 +319,32 @@ static long swI2CWriteByte(unsigned char data) ...@@ -319,32 +319,32 @@ static long swI2CWriteByte(unsigned char data)
*/ */
static unsigned char swI2CReadByte(unsigned char ack) static unsigned char swI2CReadByte(unsigned char ack)
{ {
int i; int i;
unsigned char data = 0; unsigned char data = 0;
for(i=7; i>=0; i--) for(i=7; i>=0; i--)
{ {
/* Set the SCL to Low and SDA to High (Input) */ /* Set the SCL to Low and SDA to High (Input) */
swI2CSCL(0); swI2CSCL(0);
swI2CSDA(1); swI2CSDA(1);
swI2CWait(); swI2CWait();
/* Set the SCL High */ /* Set the SCL High */
swI2CSCL(1); swI2CSCL(1);
swI2CWait(); swI2CWait();
/* Read data bits from SDA */ /* Read data bits from SDA */
data |= (swI2CReadSDA() << i); data |= (swI2CReadSDA() << i);
} }
if (ack) if (ack)
swI2CAck(); swI2CAck();
/* Set the SCL Low and SDA High */ /* Set the SCL Low and SDA High */
swI2CSCL(0); swI2CSCL(0);
swI2CSDA(1); swI2CSDA(1);
return data; return data;
} }
/* /*
...@@ -361,29 +361,29 @@ static unsigned char swI2CReadByte(unsigned char ack) ...@@ -361,29 +361,29 @@ static unsigned char swI2CReadByte(unsigned char ack)
static long swI2CInit_SM750LE(unsigned char i2cClkGPIO, static long swI2CInit_SM750LE(unsigned char i2cClkGPIO,
unsigned char i2cDataGPIO) unsigned char i2cDataGPIO)
{ {
int i; int i;
/* Initialize the GPIO pin for the i2c Clock Register */ /* Initialize the GPIO pin for the i2c Clock Register */
g_i2cClkGPIODataReg = GPIO_DATA_SM750LE; g_i2cClkGPIODataReg = GPIO_DATA_SM750LE;
g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE; g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
/* Initialize the Clock GPIO Offset */ /* Initialize the Clock GPIO Offset */
g_i2cClockGPIO = i2cClkGPIO; g_i2cClockGPIO = i2cClkGPIO;
/* Initialize the GPIO pin for the i2c Data Register */ /* Initialize the GPIO pin for the i2c Data Register */
g_i2cDataGPIODataReg = GPIO_DATA_SM750LE; g_i2cDataGPIODataReg = GPIO_DATA_SM750LE;
g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE; g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
/* Initialize the Data GPIO Offset */ /* Initialize the Data GPIO Offset */
g_i2cDataGPIO = i2cDataGPIO; g_i2cDataGPIO = i2cDataGPIO;
/* Note that SM750LE don't have GPIO MUX and power is always on */ /* Note that SM750LE don't have GPIO MUX and power is always on */
/* Clear the i2c lines. */ /* Clear the i2c lines. */
for(i=0; i<9; i++) for(i=0; i<9; i++)
swI2CStop(); swI2CStop();
return 0; return 0;
} }
/* /*
...@@ -398,49 +398,49 @@ static long swI2CInit_SM750LE(unsigned char i2cClkGPIO, ...@@ -398,49 +398,49 @@ static long swI2CInit_SM750LE(unsigned char i2cClkGPIO,
* 0 - Success * 0 - Success
*/ */
long swI2CInit( long swI2CInit(
unsigned char i2cClkGPIO, unsigned char i2cClkGPIO,
unsigned char i2cDataGPIO unsigned char i2cDataGPIO
) )
{ {
int i; int i;
/* Return 0 if the GPIO pins to be used is out of range. The range is only from [0..63] */ /* Return 0 if the GPIO pins to be used is out of range. The range is only from [0..63] */
if ((i2cClkGPIO > 31) || (i2cDataGPIO > 31)) if ((i2cClkGPIO > 31) || (i2cDataGPIO > 31))
return -1; return -1;
if (getChipType() == SM750LE) if (getChipType() == SM750LE)
return swI2CInit_SM750LE(i2cClkGPIO, i2cDataGPIO); return swI2CInit_SM750LE(i2cClkGPIO, i2cDataGPIO);
/* Initialize the GPIO pin for the i2c Clock Register */ /* Initialize the GPIO pin for the i2c Clock Register */
g_i2cClkGPIOMuxReg = GPIO_MUX; g_i2cClkGPIOMuxReg = GPIO_MUX;
g_i2cClkGPIODataReg = GPIO_DATA; g_i2cClkGPIODataReg = GPIO_DATA;
g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION; g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION;
/* Initialize the Clock GPIO Offset */ /* Initialize the Clock GPIO Offset */
g_i2cClockGPIO = i2cClkGPIO; g_i2cClockGPIO = i2cClkGPIO;
/* Initialize the GPIO pin for the i2c Data Register */ /* Initialize the GPIO pin for the i2c Data Register */
g_i2cDataGPIOMuxReg = GPIO_MUX; g_i2cDataGPIOMuxReg = GPIO_MUX;
g_i2cDataGPIODataReg = GPIO_DATA; g_i2cDataGPIODataReg = GPIO_DATA;
g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION; g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION;
/* Initialize the Data GPIO Offset */ /* Initialize the Data GPIO Offset */
g_i2cDataGPIO = i2cDataGPIO; g_i2cDataGPIO = i2cDataGPIO;
/* Enable the GPIO pins for the i2c Clock and Data (GPIO MUX) */ /* Enable the GPIO pins for the i2c Clock and Data (GPIO MUX) */
POKE32(g_i2cClkGPIOMuxReg, POKE32(g_i2cClkGPIOMuxReg,
PEEK32(g_i2cClkGPIOMuxReg) & ~(1 << g_i2cClockGPIO)); PEEK32(g_i2cClkGPIOMuxReg) & ~(1 << g_i2cClockGPIO));
POKE32(g_i2cDataGPIOMuxReg, POKE32(g_i2cDataGPIOMuxReg,
PEEK32(g_i2cDataGPIOMuxReg) & ~(1 << g_i2cDataGPIO)); PEEK32(g_i2cDataGPIOMuxReg) & ~(1 << g_i2cDataGPIO));
/* Enable GPIO power */ /* Enable GPIO power */
enableGPIO(1); enableGPIO(1);
/* Clear the i2c lines. */ /* Clear the i2c lines. */
for(i=0; i<9; i++) for(i=0; i<9; i++)
swI2CStop(); swI2CStop();
return 0; return 0;
} }
/* /*
...@@ -455,30 +455,30 @@ long swI2CInit( ...@@ -455,30 +455,30 @@ long swI2CInit(
* Register value * Register value
*/ */
unsigned char swI2CReadReg( unsigned char swI2CReadReg(
unsigned char deviceAddress, unsigned char deviceAddress,
unsigned char registerIndex unsigned char registerIndex
) )
{ {
unsigned char data; unsigned char data;
/* Send the Start signal */ /* Send the Start signal */
swI2CStart(); swI2CStart();
/* Send the device address */ /* Send the device address */
swI2CWriteByte(deviceAddress); swI2CWriteByte(deviceAddress);
/* Send the register index */ /* Send the register index */
swI2CWriteByte(registerIndex); swI2CWriteByte(registerIndex);
/* Get the bus again and get the data from the device read address */ /* Get the bus again and get the data from the device read address */
swI2CStart(); swI2CStart();
swI2CWriteByte(deviceAddress + 1); swI2CWriteByte(deviceAddress + 1);
data = swI2CReadByte(1); data = swI2CReadByte(1);
/* Stop swI2C and release the bus */ /* Stop swI2C and release the bus */
swI2CStop(); swI2CStop();
return data; return data;
} }
/* /*
...@@ -495,28 +495,28 @@ unsigned char swI2CReadReg( ...@@ -495,28 +495,28 @@ unsigned char swI2CReadReg(
* -1 - Fail * -1 - Fail
*/ */
long swI2CWriteReg( long swI2CWriteReg(
unsigned char deviceAddress, unsigned char deviceAddress,
unsigned char registerIndex, unsigned char registerIndex,
unsigned char data unsigned char data
) )
{ {
long returnValue = 0; long returnValue = 0;
/* Send the Start signal */ /* Send the Start signal */
swI2CStart(); swI2CStart();
/* Send the device address and read the data. All should return success /* Send the device address and read the data. All should return success
in order for the writing processed to be successful in order for the writing processed to be successful
*/ */
if ((swI2CWriteByte(deviceAddress) != 0) || if ((swI2CWriteByte(deviceAddress) != 0) ||
(swI2CWriteByte(registerIndex) != 0) || (swI2CWriteByte(registerIndex) != 0) ||
(swI2CWriteByte(data) != 0)) (swI2CWriteByte(data) != 0))
{ {
returnValue = -1; returnValue = -1;
} }
/* Stop i2c and release the bus */ /* Stop i2c and release the bus */
swI2CStop(); swI2CStop();
return returnValue; return returnValue;
} }
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