i2c: octeon: Rename [read|write]_sw to reg_[read|write]

Rename the [read|write]_sw functions to make it clearer they access
the TWSI registers.

Signed-off-by: Jan Glauber <jglauber@cavium.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

diff --git a/drivers/i2c/busses/i2c-octeon.c b/drivers/i2c/busses/i2c-octeon.c
index f647667a3a474447371aec1fc60098eb21cda01d..43498a427d16564bb6115d1fff687d91fa4a92c3 100644 (file)
--- a/drivers/i2c/busses/i2c-octeon.c
+++ b/drivers/i2c/busses/i2c-octeon.c
@@ -80,14 +80,14 @@ struct octeon_i2c {
 };
 
 /**
- * octeon_i2c_write_sw - write an I2C core register
+ * octeon_i2c_reg_write - write an I2C core register
  * @i2c: The struct octeon_i2c
  * @eop_reg: Register selector
  * @data: Value to be written
  *
  * The I2C core registers are accessed indirectly via the SW_TWSI CSR.
  */
-static void octeon_i2c_write_sw(struct octeon_i2c *i2c, u64 eop_reg, u8 data)
+static void octeon_i2c_reg_write(struct octeon_i2c *i2c, u64 eop_reg, u8 data)
 {
        u64 tmp;
 
@@ -98,7 +98,7 @@ static void octeon_i2c_write_sw(struct octeon_i2c *i2c, u64 eop_reg, u8 data)
 }
 
 /**
- * octeon_i2c_read_sw - read lower bits of an I2C core register
+ * octeon_i2c_reg_read - read lower bits of an I2C core register
  * @i2c: The struct octeon_i2c
  * @eop_reg: Register selector
  *
@@ -106,7 +106,7 @@ static void octeon_i2c_write_sw(struct octeon_i2c *i2c, u64 eop_reg, u8 data)
  *
  * The I2C core registers are accessed indirectly via the SW_TWSI CSR.
  */
-static u8 octeon_i2c_read_sw(struct octeon_i2c *i2c, u64 eop_reg)
+static u8 octeon_i2c_reg_read(struct octeon_i2c *i2c, u64 eop_reg)
 {
        u64 tmp;
 
@@ -189,7 +189,7 @@ static irqreturn_t octeon_i2c_isr(int irq, void *dev_id)
 
 static int octeon_i2c_test_iflg(struct octeon_i2c *i2c)
 {
-       return (octeon_i2c_read_sw(i2c, SW_TWSI_EOP_TWSI_CTL) & TWSI_CTL_IFLG) != 0;
+       return (octeon_i2c_reg_read(i2c, SW_TWSI_EOP_TWSI_CTL) & TWSI_CTL_IFLG) != 0;
 }
 
 /**
@@ -252,8 +252,8 @@ static void octeon_i2c_set_clock(struct octeon_i2c *i2c)
                        }
                }
        }
-       octeon_i2c_write_sw(i2c, SW_TWSI_OP_TWSI_CLK, thp);
-       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_CLKCTL, (mdiv << 3) | ndiv);
+       octeon_i2c_reg_write(i2c, SW_TWSI_OP_TWSI_CLK, thp);
+       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_CLKCTL, (mdiv << 3) | ndiv);
 }
 
 static int octeon_i2c_init_lowlevel(struct octeon_i2c *i2c)
@@ -262,14 +262,14 @@ static int octeon_i2c_init_lowlevel(struct octeon_i2c *i2c)
        int tries;
 
        /* disable high level controller, enable bus access */
-       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_CTL, TWSI_CTL_ENAB);
+       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_CTL, TWSI_CTL_ENAB);
 
        /* reset controller */
-       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_RST, 0);
+       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_RST, 0);
 
        for (tries = 10; tries; tries--) {
                udelay(1);
-               status = octeon_i2c_read_sw(i2c, SW_TWSI_EOP_TWSI_STAT);
+               status = octeon_i2c_reg_read(i2c, SW_TWSI_EOP_TWSI_STAT);
                if (status == STAT_IDLE)
                        return 0;
        }
@@ -288,19 +288,19 @@ static int octeon_i2c_start(struct octeon_i2c *i2c)
        int result;
        u8 data;
 
-       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_CTL,
+       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_CTL,
                            TWSI_CTL_ENAB | TWSI_CTL_STA);
 
        result = octeon_i2c_wait(i2c);
        if (result) {
-               if (octeon_i2c_read_sw(i2c, SW_TWSI_EOP_TWSI_STAT) == STAT_IDLE) {
+               if (octeon_i2c_reg_read(i2c, SW_TWSI_EOP_TWSI_STAT) == STAT_IDLE) {
                        /*
                         * Controller refused to send start flag May
                         * be a client is holding SDA low - let's try
                         * to free it.
                         */
                        octeon_i2c_unblock(i2c);
-                       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_CTL,
+                       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_CTL,
                                            TWSI_CTL_ENAB | TWSI_CTL_STA);
                        result = octeon_i2c_wait(i2c);
                }
@@ -308,7 +308,7 @@ static int octeon_i2c_start(struct octeon_i2c *i2c)
                        return result;
        }
 
-       data = octeon_i2c_read_sw(i2c, SW_TWSI_EOP_TWSI_STAT);
+       data = octeon_i2c_reg_read(i2c, SW_TWSI_EOP_TWSI_STAT);
        if ((data != STAT_START) && (data != STAT_RSTART)) {
                dev_err(i2c->dev, "%s: bad status (0x%x)\n", __func__, data);
                return -EIO;
@@ -320,7 +320,7 @@ static int octeon_i2c_start(struct octeon_i2c *i2c)
 /* send STOP to the bus */
 static void octeon_i2c_stop(struct octeon_i2c *i2c)
 {
-       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_CTL,
+       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_CTL,
                            TWSI_CTL_ENAB | TWSI_CTL_STP);
 }
 
@@ -345,15 +345,15 @@ static int octeon_i2c_write(struct octeon_i2c *i2c, int target,
        if (result)
                return result;
 
-       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_DATA, target << 1);
-       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_CTL, TWSI_CTL_ENAB);
+       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_DATA, target << 1);
+       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_CTL, TWSI_CTL_ENAB);
 
        result = octeon_i2c_wait(i2c);
        if (result)
                return result;
 
        for (i = 0; i < length; i++) {
-               tmp = octeon_i2c_read_sw(i2c, SW_TWSI_EOP_TWSI_STAT);
+               tmp = octeon_i2c_reg_read(i2c, SW_TWSI_EOP_TWSI_STAT);
 
                if ((tmp != STAT_TXADDR_ACK) && (tmp != STAT_TXDATA_ACK)) {
                        dev_err(i2c->dev,
@@ -362,8 +362,8 @@ static int octeon_i2c_write(struct octeon_i2c *i2c, int target,
                        return -EIO;
                }
 
-               octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_DATA, data[i]);
-               octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_CTL, TWSI_CTL_ENAB);
+               octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_DATA, data[i]);
+               octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_CTL, TWSI_CTL_ENAB);
 
                result = octeon_i2c_wait(i2c);
                if (result)
@@ -398,15 +398,15 @@ static int octeon_i2c_read(struct octeon_i2c *i2c, int target,
        if (result)
                return result;
 
-       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_DATA, (target << 1) | 1);
-       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_CTL, TWSI_CTL_ENAB);
+       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_DATA, (target << 1) | 1);
+       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_CTL, TWSI_CTL_ENAB);
 
        result = octeon_i2c_wait(i2c);
        if (result)
                return result;
 
        for (i = 0; i < length; i++) {
-               tmp = octeon_i2c_read_sw(i2c, SW_TWSI_EOP_TWSI_STAT);
+               tmp = octeon_i2c_reg_read(i2c, SW_TWSI_EOP_TWSI_STAT);
 
                if ((tmp != STAT_RXDATA_ACK) && (tmp != STAT_RXADDR_ACK)) {
                        dev_err(i2c->dev,
@@ -416,17 +416,17 @@ static int octeon_i2c_read(struct octeon_i2c *i2c, int target,
                }
 
                if (i + 1 < length)
-                       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_CTL,
+                       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_CTL,
                                            TWSI_CTL_ENAB | TWSI_CTL_AAK);
                else
-                       octeon_i2c_write_sw(i2c, SW_TWSI_EOP_TWSI_CTL,
+                       octeon_i2c_reg_write(i2c, SW_TWSI_EOP_TWSI_CTL,
                                            TWSI_CTL_ENAB);
 
                result = octeon_i2c_wait(i2c);
                if (result)
                        return result;
 
-               data[i] = octeon_i2c_read_sw(i2c, SW_TWSI_EOP_TWSI_DATA);
+               data[i] = octeon_i2c_reg_read(i2c, SW_TWSI_EOP_TWSI_DATA);
                if (recv_len && i == 0) {
                        if (data[i] > I2C_SMBUS_BLOCK_MAX + 1) {
                                dev_err(i2c->dev,