SMIA only has per-component digital gain. Add support for it.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
drivers/media/i2c/ccs/ccs-core.c | 33 +++++++++++++++++++++++--
drivers/media/i2c/ccs/smiapp-reg-defs.h | 2 ++
2 files changed, 33 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c
index 1cb46de003e5..37016855df43 100644
--- a/drivers/media/i2c/ccs/ccs-core.c
+++ b/drivers/media/i2c/ccs/ccs-core.c
@@ -672,7 +672,34 @@ static int ccs_set_ctrl(struct v4l2_ctrl *ctrl)
break;
case V4L2_CID_DIGITAL_GAIN:
- rval = ccs_write(sensor, DIGITAL_GAIN_GLOBAL, ctrl->val);
+ if (CCS_LIM(sensor, DIGITAL_GAIN_CAPABILITY) ==
+ CCS_DIGITAL_GAIN_CAPABILITY_GLOBAL) {
+ rval = ccs_write(sensor, DIGITAL_GAIN_GLOBAL,
+ ctrl->val);
+ break;
+ }
+
+ rval = ccs_write_addr(sensor,
+ SMIAPP_REG_U16_DIGITAL_GAIN_GREENR,
+ ctrl->val);
+ if (rval)
+ break;
+
+ rval = ccs_write_addr(sensor,
+ SMIAPP_REG_U16_DIGITAL_GAIN_RED,
+ ctrl->val);
+ if (rval)
+ break;
+
+ rval = ccs_write_addr(sensor,
+ SMIAPP_REG_U16_DIGITAL_GAIN_BLUE,
+ ctrl->val);
+ if (rval)
+ break;
+
+ rval = ccs_write_addr(sensor,
+ SMIAPP_REG_U16_DIGITAL_GAIN_GREENB,
+ ctrl->val);
break;
case V4L2_CID_EXPOSURE:
@@ -758,7 +785,9 @@ static int ccs_init_controls(struct ccs_sensor *sensor)
CCS_LIM(sensor, ANALOG_GAIN_CODE_MIN));
if (CCS_LIM(sensor, DIGITAL_GAIN_CAPABILITY) ==
- CCS_DIGITAL_GAIN_CAPABILITY_GLOBAL)
+ CCS_DIGITAL_GAIN_CAPABILITY_GLOBAL ||
+ CCS_LIM(sensor, DIGITAL_GAIN_CAPABILITY) ==
+ SMIAPP_DIGITAL_GAIN_CAPABILITY_PER_CHANNEL)
v4l2_ctrl_new_std(&sensor->pixel_array->ctrl_handler,
&ccs_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
CCS_LIM(sensor, DIGITAL_GAIN_MIN),
diff --git a/drivers/media/i2c/ccs/smiapp-reg-defs.h b/drivers/media/i2c/ccs/smiapp-reg-defs.h
index e80c110ebf3a..177e3e51207a 100644
--- a/drivers/media/i2c/ccs/smiapp-reg-defs.h
+++ b/drivers/media/i2c/ccs/smiapp-reg-defs.h
@@ -535,6 +535,8 @@
#define SMIAPP_DIGITAL_CROP_CAPABILITY_NONE 0
#define SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP 1
+#define SMIAPP_DIGITAL_GAIN_CAPABILITY_PER_CHANNEL 1
+
#define SMIAPP_BINNING_CAPABILITY_NO 0
#define SMIAPP_BINNING_CAPABILITY_YES 1
--
2.27.0
