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Subject: media: ccs: Add digital gain support Author: Sakari Ailus <[email protected]> Date: Wed Sep 23 16:26:33 2020 +0200 CCS supports global (all-component) digital gain. Add support for it. Signed-off-by: Sakari Ailus <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/i2c/ccs/ccs-core.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) --- diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c index b39ae5f8446b..f1fecc72e247 100644 --- a/drivers/media/i2c/ccs/ccs-core.c +++ b/drivers/media/i2c/ccs/ccs-core.c @@ -670,6 +670,11 @@ static int ccs_set_ctrl(struct v4l2_ctrl *ctrl) case V4L2_CID_ANALOGUE_GAIN: rval = ccs_write(sensor, ANALOG_GAIN_CODE_GLOBAL, ctrl->val); + break; + + case V4L2_CID_DIGITAL_GAIN: + rval = ccs_write(sensor, DIGITAL_GAIN_GLOBAL, ctrl->val); + break; case V4L2_CID_EXPOSURE: rval = ccs_write(sensor, COARSE_INTEGRATION_TIME, ctrl->val); @@ -739,7 +744,7 @@ static int ccs_init_controls(struct ccs_sensor *sensor) struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); int rval; - rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 12); + rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 13); if (rval) return rval; @@ -753,6 +758,16 @@ static int ccs_init_controls(struct ccs_sensor *sensor) max(CCS_LIM(sensor, ANALOG_GAIN_CODE_STEP), 1U), CCS_LIM(sensor, ANALOG_GAIN_CODE_MIN)); + if (CCS_LIM(sensor, DIGITAL_GAIN_CAPABILITY) == + CCS_DIGITAL_GAIN_CAPABILITY_GLOBAL) + v4l2_ctrl_new_std(&sensor->pixel_array->ctrl_handler, + &ccs_ctrl_ops, V4L2_CID_DIGITAL_GAIN, + CCS_LIM(sensor, DIGITAL_GAIN_MIN), + CCS_LIM(sensor, DIGITAL_GAIN_MAX), + max(CCS_LIM(sensor, DIGITAL_GAIN_STEP_SIZE), + 1U), + 0x100); + /* Exposure limits will be updated soon, use just something here. */ sensor->exposure = v4l2_ctrl_new_std( &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops, _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
