staging: sm750fb: ddk750_*i2c: shorten lines to under 80 characters
Fix some checkpatch warnings about long lines Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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987f202a34
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9137f812e9
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@ -63,7 +63,8 @@ static long hw_i2c_wait_tx_done(void)
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/* Wait until the transfer is completed. */
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timeout = HWI2C_WAIT_TIMEOUT;
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while ((FIELD_GET(PEEK32(I2C_STATUS), I2C_STATUS, TX) != I2C_STATUS_TX_COMPLETED) &&
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while ((FIELD_GET(PEEK32(I2C_STATUS),
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I2C_STATUS, TX) != I2C_STATUS_TX_COMPLETED) &&
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(timeout != 0))
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timeout--;
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@ -102,7 +103,10 @@ static unsigned int hw_i2c_write_data(
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* Only 16 byte can be accessed per i2c start instruction.
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*/
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do {
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/* Reset I2C by writing 0 to I2C_RESET register to clear the previous status. */
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/*
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* Reset I2C by writing 0 to I2C_RESET register to
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* clear the previous status.
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*/
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POKE32(I2C_RESET, 0);
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/* Set the number of bytes to be written */
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@ -117,7 +121,8 @@ static unsigned int hw_i2c_write_data(
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POKE32(I2C_DATA0 + i, *buf++);
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/* Start the I2C */
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POKE32(I2C_CTRL, FIELD_SET(PEEK32(I2C_CTRL), I2C_CTRL, CTRL, START));
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POKE32(I2C_CTRL,
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FIELD_SET(PEEK32(I2C_CTRL), I2C_CTRL, CTRL, START));
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/* Wait until the transfer is completed. */
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if (hw_i2c_wait_tx_done() != 0)
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@ -165,7 +170,10 @@ static unsigned int hw_i2c_read_data(
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* Only 16 byte can be accessed per i2c start instruction.
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*/
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do {
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/* Reset I2C by writing 0 to I2C_RESET register to clear all the status. */
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/*
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* Reset I2C by writing 0 to I2C_RESET register to
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* clear all the status.
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*/
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POKE32(I2C_RESET, 0);
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/* Set the number of bytes to be read */
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@ -176,7 +184,8 @@ static unsigned int hw_i2c_read_data(
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POKE32(I2C_BYTE_COUNT, count);
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/* Start the I2C */
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POKE32(I2C_CTRL, FIELD_SET(PEEK32(I2C_CTRL), I2C_CTRL, CTRL, START));
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POKE32(I2C_CTRL,
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FIELD_SET(PEEK32(I2C_CTRL), I2C_CTRL, CTRL, START));
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/* Wait until transaction done. */
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if (hw_i2c_wait_tx_done() != 0)
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@ -6,5 +6,6 @@ int sm750_hw_i2c_init(unsigned char bus_speed_mode);
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void sm750_hw_i2c_close(void);
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unsigned char sm750_hw_i2c_read_reg(unsigned char addr, unsigned char reg);
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int sm750_hw_i2c_write_reg(unsigned char addr, unsigned char reg, unsigned char data);
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int sm750_hw_i2c_write_reg(unsigned char addr, unsigned char reg,
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unsigned char data);
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#endif
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@ -125,7 +125,10 @@ static void sw_i2c_scl(unsigned char value)
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gpio_dir = PEEK32(sw_i2c_clk_gpio_data_dir_reg);
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if (value) { /* High */
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/* Set direction as input. This will automatically pull the signal up. */
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/*
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* Set direction as input. This will automatically
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* pull the signal up.
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*/
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gpio_dir &= ~(1 << sw_i2c_clk_gpio);
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POKE32(sw_i2c_clk_gpio_data_dir_reg, gpio_dir);
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} else { /* Low */
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@ -159,7 +162,10 @@ static void sw_i2c_sda(unsigned char value)
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gpio_dir = PEEK32(sw_i2c_data_gpio_data_dir_reg);
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if (value) { /* High */
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/* Set direction as input. This will automatically pull the signal up. */
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/*
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* Set direction as input. This will automatically
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* pull the signal up.
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*/
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gpio_dir &= ~(1 << sw_i2c_data_gpio);
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POKE32(sw_i2c_data_gpio_data_dir_reg, gpio_dir);
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} else { /* Low */
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@ -184,10 +190,11 @@ static unsigned char sw_i2c_read_sda(void)
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{
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unsigned long gpio_dir;
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unsigned long gpio_data;
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unsigned long dir_mask = 1 << sw_i2c_data_gpio;
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/* Make sure that the direction is input (High) */
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gpio_dir = PEEK32(sw_i2c_data_gpio_data_dir_reg);
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if ((gpio_dir & (1 << sw_i2c_data_gpio)) != (~(1 << sw_i2c_data_gpio))) {
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if ((gpio_dir & dir_mask) != ~dir_mask) {
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gpio_dir &= ~(1 << sw_i2c_data_gpio);
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POKE32(sw_i2c_data_gpio_data_dir_reg, gpio_dir);
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}
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@ -392,7 +399,10 @@ long sm750_sw_i2c_init(
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{
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int i;
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/* Return 0 if the GPIO pins to be used is out of range. The range is only from [0..63] */
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/*
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* Return 0 if the GPIO pins to be used is out of range. The
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* range is only from [0..63]
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*/
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if ((clk_gpio > 31) || (data_gpio > 31))
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return -1;
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@ -417,9 +427,9 @@ long sm750_sw_i2c_init(
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/* Enable the GPIO pins for the i2c Clock and Data (GPIO MUX) */
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POKE32(sw_i2c_clk_gpio_mux_reg,
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PEEK32(sw_i2c_clk_gpio_mux_reg) & ~(1 << sw_i2c_clk_gpio));
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PEEK32(sw_i2c_clk_gpio_mux_reg) & ~(1 << sw_i2c_clk_gpio));
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POKE32(sw_i2c_data_gpio_mux_reg,
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PEEK32(sw_i2c_data_gpio_mux_reg) & ~(1 << sw_i2c_data_gpio));
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PEEK32(sw_i2c_data_gpio_mux_reg) & ~(1 << sw_i2c_data_gpio));
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/* Enable GPIO power */
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enableGPIO(1);
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