Acc to MLX90640 datasheet: - 0x0400 represents the start of RAM address - 0x2400 represents the start of EEPROM address Reference: https://www.melexis.com/-/media/files/documents\ /datasheets/mlx90640-datasheet-melexis.pdf Signed-off-by: Moses Christopher Bollavarapu <mosescb.dev@xxxxxxxxx> --- drivers/media/i2c/video-i2c.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/video-i2c.c b/drivers/media/i2c/video-i2c.c index b3fe9a507f7f..1d5f48329cb2 100644 --- a/drivers/media/i2c/video-i2c.c +++ b/drivers/media/i2c/video-i2c.c @@ -54,6 +54,12 @@ /* Temperature register */ #define AMG88XX_REG_T01L 0x80 +/* RAM */ +#define MLX90640_RAM_START_ADDR 0x0400 + +/* EEPROM */ +#define MLX90640_EEPROM_START_ADDR 0x2400 + /* Control register */ #define MLX90640_REG_CTL1 0x800d #define MLX90640_REG_CTL1_MASK 0x0380 @@ -149,7 +155,7 @@ static int mlx90640_nvram_read(void *priv, unsigned int offset, void *val, { struct video_i2c_data *data = priv; - return regmap_bulk_read(data->regmap, 0x2400 + offset, val, bytes); + return regmap_bulk_read(data->regmap, MLX90640_EEPROM_START_ADDR + offset, val, bytes); } static struct nvmem_config mlx90640_nvram_config = { @@ -168,7 +174,7 @@ static int amg88xx_xfer(struct video_i2c_data *data, char *buf) static int mlx90640_xfer(struct video_i2c_data *data, char *buf) { - return regmap_bulk_read(data->regmap, 0x400, buf, + return regmap_bulk_read(data->regmap, MLX90640_RAM_START_ADDR, buf, data->chip->buffer_size); } -- 2.30.2
