| Message ID | 1501768223-23654-1-git-send-email-kbingham@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Kieran, On 2017-08-03 14:50:23 +0100, Kieran Bingham wrote: > From: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> > > The current implementation has to search the list of controls for the > pixel rate control, each time it is set. This can be optimised easily > by storing the ctrl pointer in the CSI/TX object, and referencing that > directly. > > While at it, fix up a missing blank line also highlighted in review > comments. > > Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> It won't apply cleanly to the media-tree since there already is a commit there which cleans-up the unused variable in dv748x_csi2_init_controls() Apart from that: Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> > --- > Small enhancement and fixup as suggested by Sakari, after driver acceptance. > > Niklas, with my current 8 Camera set up - I can't fully test this change. > Could you give it a spin if you get chance please? > > drivers/media/i2c/adv748x/adv748x-afe.c | 1 + > drivers/media/i2c/adv748x/adv748x-csi2.c | 15 +++++++-------- > drivers/media/i2c/adv748x/adv748x.h | 1 + > 3 files changed, 9 insertions(+), 8 deletions(-) > > diff --git a/drivers/media/i2c/adv748x/adv748x-afe.c b/drivers/media/i2c/adv748x/adv748x-afe.c > index b33ccfc08708..134d981d69d3 100644 > --- a/drivers/media/i2c/adv748x/adv748x-afe.c > +++ b/drivers/media/i2c/adv748x/adv748x-afe.c > @@ -262,6 +262,7 @@ static int adv748x_afe_g_input_status(struct v4l2_subdev *sd, u32 *status) > ret = adv748x_afe_status(afe, status, NULL); > > mutex_unlock(&state->mutex); > + > return ret; > } > > diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c b/drivers/media/i2c/adv748x/adv748x-csi2.c > index b4fee7f52d6a..609d960c0749 100644 > --- a/drivers/media/i2c/adv748x/adv748x-csi2.c > +++ b/drivers/media/i2c/adv748x/adv748x-csi2.c > @@ -223,13 +223,12 @@ static const struct v4l2_subdev_ops adv748x_csi2_ops = { > > int adv748x_csi2_set_pixelrate(struct v4l2_subdev *sd, s64 rate) > { > - struct v4l2_ctrl *ctrl; > + struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd); > > - ctrl = v4l2_ctrl_find(sd->ctrl_handler, V4L2_CID_PIXEL_RATE); > - if (!ctrl) > + if (!tx->pixel_rate) > return -EINVAL; > > - return v4l2_ctrl_s_ctrl_int64(ctrl, rate); > + return v4l2_ctrl_s_ctrl_int64(tx->pixel_rate, rate); > } > > static int adv748x_csi2_s_ctrl(struct v4l2_ctrl *ctrl) > @@ -248,12 +247,12 @@ static const struct v4l2_ctrl_ops adv748x_csi2_ctrl_ops = { > > static int adv748x_csi2_init_controls(struct adv748x_csi2 *tx) > { > - struct v4l2_ctrl *ctrl; > - > v4l2_ctrl_handler_init(&tx->ctrl_hdl, 1); > > - ctrl = v4l2_ctrl_new_std(&tx->ctrl_hdl, &adv748x_csi2_ctrl_ops, > - V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1); > + tx->pixel_rate = v4l2_ctrl_new_std(&tx->ctrl_hdl, > + &adv748x_csi2_ctrl_ops, > + V4L2_CID_PIXEL_RATE, 1, INT_MAX, > + 1, 1); > > tx->sd.ctrl_handler = &tx->ctrl_hdl; > if (tx->ctrl_hdl.error) { > diff --git a/drivers/media/i2c/adv748x/adv748x.h b/drivers/media/i2c/adv748x/adv748x.h > index cc4151b5b31e..6789e2f3bc8c 100644 > --- a/drivers/media/i2c/adv748x/adv748x.h > +++ b/drivers/media/i2c/adv748x/adv748x.h > @@ -97,6 +97,7 @@ struct adv748x_csi2 { > > struct media_pad pads[ADV748X_CSI2_NR_PADS]; > struct v4l2_ctrl_handler ctrl_hdl; > + struct v4l2_ctrl *pixel_rate; > struct v4l2_subdev sd; > }; > > -- > 2.7.4 >
Kieran Bingham wrote: > From: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> > > The current implementation has to search the list of controls for the > pixel rate control, each time it is set. This can be optimised easily > by storing the ctrl pointer in the CSI/TX object, and referencing that > directly. > > While at it, fix up a missing blank line also highlighted in review > comments. > > Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
diff --git a/drivers/media/i2c/adv748x/adv748x-afe.c b/drivers/media/i2c/adv748x/adv748x-afe.c index b33ccfc08708..134d981d69d3 100644 --- a/drivers/media/i2c/adv748x/adv748x-afe.c +++ b/drivers/media/i2c/adv748x/adv748x-afe.c @@ -262,6 +262,7 @@ static int adv748x_afe_g_input_status(struct v4l2_subdev *sd, u32 *status) ret = adv748x_afe_status(afe, status, NULL); mutex_unlock(&state->mutex); + return ret; } diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c b/drivers/media/i2c/adv748x/adv748x-csi2.c index b4fee7f52d6a..609d960c0749 100644 --- a/drivers/media/i2c/adv748x/adv748x-csi2.c +++ b/drivers/media/i2c/adv748x/adv748x-csi2.c @@ -223,13 +223,12 @@ static const struct v4l2_subdev_ops adv748x_csi2_ops = { int adv748x_csi2_set_pixelrate(struct v4l2_subdev *sd, s64 rate) { - struct v4l2_ctrl *ctrl; + struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd); - ctrl = v4l2_ctrl_find(sd->ctrl_handler, V4L2_CID_PIXEL_RATE); - if (!ctrl) + if (!tx->pixel_rate) return -EINVAL; - return v4l2_ctrl_s_ctrl_int64(ctrl, rate); + return v4l2_ctrl_s_ctrl_int64(tx->pixel_rate, rate); } static int adv748x_csi2_s_ctrl(struct v4l2_ctrl *ctrl) @@ -248,12 +247,12 @@ static const struct v4l2_ctrl_ops adv748x_csi2_ctrl_ops = { static int adv748x_csi2_init_controls(struct adv748x_csi2 *tx) { - struct v4l2_ctrl *ctrl; - v4l2_ctrl_handler_init(&tx->ctrl_hdl, 1); - ctrl = v4l2_ctrl_new_std(&tx->ctrl_hdl, &adv748x_csi2_ctrl_ops, - V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1); + tx->pixel_rate = v4l2_ctrl_new_std(&tx->ctrl_hdl, + &adv748x_csi2_ctrl_ops, + V4L2_CID_PIXEL_RATE, 1, INT_MAX, + 1, 1); tx->sd.ctrl_handler = &tx->ctrl_hdl; if (tx->ctrl_hdl.error) { diff --git a/drivers/media/i2c/adv748x/adv748x.h b/drivers/media/i2c/adv748x/adv748x.h index cc4151b5b31e..6789e2f3bc8c 100644 --- a/drivers/media/i2c/adv748x/adv748x.h +++ b/drivers/media/i2c/adv748x/adv748x.h @@ -97,6 +97,7 @@ struct adv748x_csi2 { struct media_pad pads[ADV748X_CSI2_NR_PADS]; struct v4l2_ctrl_handler ctrl_hdl; + struct v4l2_ctrl *pixel_rate; struct v4l2_subdev sd; };