diff options
| author | Mike Rapoport | 2016-02-10 17:34:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2016-02-12 04:52:37 +0100 |
| commit | 3e155b813406fbb4aed1a54eecd24a90cf13dd96 (patch) | |
| tree | b23f43c758ae3aca64a0767f55493cff68666e93 /drivers/staging/sm750fb | |
| parent | staging: sm750fb: use BIT macro for I2C_CTRL fields (diff) | |
| download | kernel-qcow2-linux-3e155b813406fbb4aed1a54eecd24a90cf13dd96.tar.gz kernel-qcow2-linux-3e155b813406fbb4aed1a54eecd24a90cf13dd96.tar.xz kernel-qcow2-linux-3e155b813406fbb4aed1a54eecd24a90cf13dd96.zip | |
staging: sm750fb: use BIT macro for I2C_STATUS fields
Replace complex definition of I2C_STATUS register fields with BIT() macro
and use open-coded implementation for register manipulation
Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/sm750fb')
| -rw-r--r-- | drivers/staging/sm750fb/ddk750_hwi2c.c | 4 | ||||
| -rw-r--r-- | drivers/staging/sm750fb/ddk750_reg.h | 18 |
2 files changed, 5 insertions, 17 deletions
diff --git a/drivers/staging/sm750fb/ddk750_hwi2c.c b/drivers/staging/sm750fb/ddk750_hwi2c.c index 1811c4bd007f..231c02114ed4 100644 --- a/drivers/staging/sm750fb/ddk750_hwi2c.c +++ b/drivers/staging/sm750fb/ddk750_hwi2c.c @@ -59,9 +59,7 @@ static long hw_i2c_wait_tx_done(void) /* Wait until the transfer is completed. */ timeout = HWI2C_WAIT_TIMEOUT; - while ((FIELD_GET(PEEK32(I2C_STATUS), - I2C_STATUS, TX) != I2C_STATUS_TX_COMPLETED) && - (timeout != 0)) + while (!(PEEK32(I2C_STATUS) & I2C_STATUS_TX) && (timeout != 0)) timeout--; if (timeout == 0) diff --git a/drivers/staging/sm750fb/ddk750_reg.h b/drivers/staging/sm750fb/ddk750_reg.h index 2a8ad57e6311..63995995be14 100644 --- a/drivers/staging/sm750fb/ddk750_reg.h +++ b/drivers/staging/sm750fb/ddk750_reg.h @@ -1612,20 +1612,10 @@ #define I2C_CTRL_EN BIT(0) #define I2C_STATUS 0x010042 -#define I2C_STATUS_TX 3:3 -#define I2C_STATUS_TX_PROGRESS 0 -#define I2C_STATUS_TX_COMPLETED 1 -#define I2C_TX_DONE 0x08 -#define I2C_STATUS_ERR 2:2 -#define I2C_STATUS_ERR_NORMAL 0 -#define I2C_STATUS_ERR_ERROR 1 -#define I2C_STATUS_ERR_CLEAR 0 -#define I2C_STATUS_ACK 1:1 -#define I2C_STATUS_ACK_RECEIVED 0 -#define I2C_STATUS_ACK_NOT 1 -#define I2C_STATUS_BSY 0:0 -#define I2C_STATUS_BSY_IDLE 0 -#define I2C_STATUS_BSY_BUSY 1 +#define I2C_STATUS_TX BIT(3) +#define I2C_STATUS_ERR BIT(2) +#define I2C_STATUS_ACK BIT(1) +#define I2C_STATUS_BSY BIT(0) #define I2C_RESET 0x010042 #define I2C_RESET_BUS_ERROR 2:2 |