media: ov5640: fix wrong binning value in exposure calculation

ov5640_set_mode_exposure_calc() is checking binning value but
binning value read is buggy, fix this.
Rename ov5640_binning_on() to ov5640_get_binning() as per other
similar functions.

Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index 7562f43..4118256 100644 (file)
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -1383,7 +1383,7 @@ static int ov5640_set_ae_target(struct ov5640_dev *sensor, int target)
        return ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL1F, fast_low);
 }
 
-static int ov5640_binning_on(struct ov5640_dev *sensor)
+static int ov5640_get_binning(struct ov5640_dev *sensor)
 {
        u8 temp;
        int ret;
@@ -1391,8 +1391,8 @@ static int ov5640_binning_on(struct ov5640_dev *sensor)
        ret = ov5640_read_reg(sensor, OV5640_REG_TIMING_TC_REG21, &temp);
        if (ret)
                return ret;
-       temp &= 0xfe;
-       return temp ? 1 : 0;
+
+       return temp & BIT(0);
 }
 
 static int ov5640_set_binning(struct ov5640_dev *sensor, bool enable)
@@ -1478,7 +1478,7 @@ static int ov5640_set_mode_exposure_calc(struct ov5640_dev *sensor,
        if (ret < 0)
                return ret;
        prev_shutter = ret;
-       ret = ov5640_binning_on(sensor);
+       ret = ov5640_get_binning(sensor);
        if (ret < 0)
                return ret;
        if (ret && mode->id != OV5640_MODE_720P_1280_720 &&