Make use of the BIT macro for setting individual bits. This improves readability and safety with respect to shifts. When on it also remove two zero value disable defines. Signed-off-by: Stefan Riedmueller <s.riedmueller@xxxxxxxxx> --- drivers/media/i2c/mt9p031.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-) diff --git a/drivers/media/i2c/mt9p031.c b/drivers/media/i2c/mt9p031.c index ee2777059682..cbce8b88dbcf 100644 --- a/drivers/media/i2c/mt9p031.c +++ b/drivers/media/i2c/mt9p031.c @@ -76,40 +76,38 @@ #define MT9P031_PLL_CONFIG_1 0x11 #define MT9P031_PLL_CONFIG_2 0x12 #define MT9P031_PIXEL_CLOCK_CONTROL 0x0a -#define MT9P031_PIXEL_CLOCK_INVERT (1 << 15) +#define MT9P031_PIXEL_CLOCK_INVERT BIT(15) #define MT9P031_PIXEL_CLOCK_SHIFT(n) ((n) << 8) #define MT9P031_PIXEL_CLOCK_DIVIDE(n) ((n) << 0) #define MT9P031_RESTART 0x0b -#define MT9P031_FRAME_PAUSE_RESTART (1 << 1) -#define MT9P031_FRAME_RESTART (1 << 0) +#define MT9P031_FRAME_PAUSE_RESTART BIT(1) +#define MT9P031_FRAME_RESTART BIT(0) #define MT9P031_SHUTTER_DELAY 0x0c #define MT9P031_RST 0x0d -#define MT9P031_RST_ENABLE 1 -#define MT9P031_RST_DISABLE 0 +#define MT9P031_RST_ENABLE BIT(0) #define MT9P031_READ_MODE_1 0x1e #define MT9P031_READ_MODE_2 0x20 -#define MT9P031_READ_MODE_2_ROW_MIR (1 << 15) -#define MT9P031_READ_MODE_2_COL_MIR (1 << 14) -#define MT9P031_READ_MODE_2_ROW_BLC (1 << 6) +#define MT9P031_READ_MODE_2_ROW_MIR BIT(15) +#define MT9P031_READ_MODE_2_COL_MIR BIT(14) +#define MT9P031_READ_MODE_2_ROW_BLC BIT(6) #define MT9P031_ROW_ADDRESS_MODE 0x22 #define MT9P031_COLUMN_ADDRESS_MODE 0x23 #define MT9P031_GLOBAL_GAIN 0x35 #define MT9P031_GLOBAL_GAIN_MIN 8 #define MT9P031_GLOBAL_GAIN_MAX 1024 #define MT9P031_GLOBAL_GAIN_DEF 8 -#define MT9P031_GLOBAL_GAIN_MULT (1 << 6) +#define MT9P031_GLOBAL_GAIN_MULT BIT(6) #define MT9P031_ROW_BLACK_TARGET 0x49 #define MT9P031_ROW_BLACK_DEF_OFFSET 0x4b #define MT9P031_GREEN1_OFFSET 0x60 #define MT9P031_GREEN2_OFFSET 0x61 #define MT9P031_BLACK_LEVEL_CALIBRATION 0x62 -#define MT9P031_BLC_MANUAL_BLC (1 << 0) +#define MT9P031_BLC_MANUAL_BLC BIT(0) #define MT9P031_RED_OFFSET 0x63 #define MT9P031_BLUE_OFFSET 0x64 #define MT9P031_TEST_PATTERN 0xa0 #define MT9P031_TEST_PATTERN_SHIFT 3 -#define MT9P031_TEST_PATTERN_ENABLE (1 << 0) -#define MT9P031_TEST_PATTERN_DISABLE (0 << 0) +#define MT9P031_TEST_PATTERN_ENABLE BIT(0) #define MT9P031_TEST_PATTERN_GREEN 0xa1 #define MT9P031_TEST_PATTERN_RED 0xa2 #define MT9P031_TEST_PATTERN_BLUE 0xa3 @@ -199,7 +197,7 @@ static int mt9p031_reset(struct mt9p031 *mt9p031) ret = mt9p031_write(client, MT9P031_RST, MT9P031_RST_ENABLE); if (ret < 0) return ret; - ret = mt9p031_write(client, MT9P031_RST, MT9P031_RST_DISABLE); + ret = mt9p031_write(client, MT9P031_RST, 0); if (ret < 0) return ret; @@ -794,8 +792,7 @@ static int mt9p031_s_ctrl(struct v4l2_ctrl *ctrl) if (ret < 0) return ret; - return mt9p031_write(client, MT9P031_TEST_PATTERN, - MT9P031_TEST_PATTERN_DISABLE); + return mt9p031_write(client, MT9P031_TEST_PATTERN, 0); } ret = mt9p031_write(client, MT9P031_TEST_PATTERN_GREEN, 0x05a0); -- 2.25.1
