diff mbox series

[RESEND,v8,9/9] media: v4l: Convert the users of v4l2_get_link_freq to call it on a pad

Message ID 20241219110302.954411-1-sakari.ailus@linux.intel.com (mailing list archive)
State New
Headers show
Series None | expand

Commit Message

Sakari Ailus Dec. 19, 2024, 11:03 a.m. UTC
Call v4l2_get_link_freq() on a pad, instead of a control handler. This way
we can soon convert v4l2_get_link_freq() to be callable only on a pad and
remove the compatibility code.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
Included driver maintainers and reviewers.

The full set is here
<URL:https://lore.kernel.org/linux-media/20241217215445.901459-1-sakari.ailus@linux.intel.com/T/#t>.

 drivers/media/i2c/st-mipid02.c                  |  5 +++--
 drivers/media/i2c/tc358746.c                    |  4 +++-
 drivers/media/pci/intel/ipu3/ipu3-cio2.c        | 11 ++++++++---
 drivers/media/platform/cadence/cdns-csi2rx.c    |  4 +++-
 drivers/media/platform/nxp/imx-mipi-csis.c      |  5 +++--
 drivers/media/platform/nxp/imx8mq-mipi-csi2.c   | 11 +++++++++--
 .../media/platform/qcom/camss/camss-vfe-17x.c   |  8 +++++---
 .../media/platform/qcom/camss/camss-vfe-gen1.c  |  8 +++++---
 drivers/media/platform/qcom/camss/camss.c       | 17 +++++++----------
 drivers/media/platform/qcom/camss/camss.h       |  2 +-
 .../media/platform/raspberrypi/rp1-cfe/cfe.c    |  4 +++-
 drivers/media/platform/st/stm32/stm32-csi.c     |  4 +++-
 drivers/media/platform/ti/cal/cal-camerarx.c    |  3 ++-
 drivers/media/platform/ti/cal/cal.c             |  4 +++-
 drivers/media/platform/ti/cal/cal.h             |  1 +
 15 files changed, 59 insertions(+), 32 deletions(-)

Comments

Naushir Patuck Dec. 19, 2024, 12:44 p.m. UTC | #1
Hi Sakari,

Thank you for your patch.

On Thu, 19 Dec 2024 at 11:03, Sakari Ailus <sakari.ailus@linux.intel.com> wrote:
>
> Call v4l2_get_link_freq() on a pad, instead of a control handler. This way
> we can soon convert v4l2_get_link_freq() to be callable only on a pad and
> remove the compatibility code.
>
> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>

The change to rp1-cfe looks reasonable:

Acked-by: Naushir Patuck <naush@raspberrypi.com>

> ---
> Included driver maintainers and reviewers.
>
> The full set is here
> <URL:https://lore.kernel.org/linux-media/20241217215445.901459-1-sakari.ailus@linux.intel.com/T/#t>.
>
>  drivers/media/i2c/st-mipid02.c                  |  5 +++--
>  drivers/media/i2c/tc358746.c                    |  4 +++-
>  drivers/media/pci/intel/ipu3/ipu3-cio2.c        | 11 ++++++++---
>  drivers/media/platform/cadence/cdns-csi2rx.c    |  4 +++-
>  drivers/media/platform/nxp/imx-mipi-csis.c      |  5 +++--
>  drivers/media/platform/nxp/imx8mq-mipi-csi2.c   | 11 +++++++++--
>  .../media/platform/qcom/camss/camss-vfe-17x.c   |  8 +++++---
>  .../media/platform/qcom/camss/camss-vfe-gen1.c  |  8 +++++---
>  drivers/media/platform/qcom/camss/camss.c       | 17 +++++++----------
>  drivers/media/platform/qcom/camss/camss.h       |  2 +-
>  .../media/platform/raspberrypi/rp1-cfe/cfe.c    |  4 +++-
>  drivers/media/platform/st/stm32/stm32-csi.c     |  4 +++-
>  drivers/media/platform/ti/cal/cal-camerarx.c    |  3 ++-
>  drivers/media/platform/ti/cal/cal.c             |  4 +++-
>  drivers/media/platform/ti/cal/cal.h             |  1 +
>  15 files changed, 59 insertions(+), 32 deletions(-)
>
> diff --git a/drivers/media/i2c/st-mipid02.c b/drivers/media/i2c/st-mipid02.c
> index f08db3cfe076..f4568e87f018 100644
> --- a/drivers/media/i2c/st-mipid02.c
> +++ b/drivers/media/i2c/st-mipid02.c
> @@ -301,8 +301,9 @@ static int mipid02_detect(struct mipid02_dev *bridge)
>  static int mipid02_configure_from_rx_speed(struct mipid02_dev *bridge,
>                                            struct v4l2_mbus_framefmt *fmt)
>  {
> +       struct media_pad *remote =
> +               &bridge->s_subdev->entity.pads[bridge->s_subdev_pad_id];
>         struct i2c_client *client = bridge->i2c_client;
> -       struct v4l2_subdev *subdev = bridge->s_subdev;
>         struct v4l2_fwnode_endpoint *ep = &bridge->rx;
>         u32 bpp = bpp_from_code(fmt->code);
>         /*
> @@ -312,7 +313,7 @@ static int mipid02_configure_from_rx_speed(struct mipid02_dev *bridge,
>         u64 ui_4 = 2000000000;
>         s64 link_freq;
>
> -       link_freq = v4l2_get_link_freq(subdev->ctrl_handler, bpp,
> +       link_freq = v4l2_get_link_freq(remote, bpp,
>                                        2 * ep->bus.mipi_csi2.num_data_lanes);
>         if (link_freq < 0) {
>                 dev_err(&client->dev, "Failed to get link frequency");
> diff --git a/drivers/media/i2c/tc358746.c b/drivers/media/i2c/tc358746.c
> index 389582420ba7..31586f8e4be4 100644
> --- a/drivers/media/i2c/tc358746.c
> +++ b/drivers/media/i2c/tc358746.c
> @@ -896,6 +896,7 @@ tc358746_link_validate(struct v4l2_subdev *sd, struct media_link *link,
>         const struct tc358746_format *fmt;
>         unsigned int fifo_sz, tmp, n;
>         struct v4l2_subdev *source;
> +       struct media_pad *src_pad;
>         s64 source_link_freq;
>         int err;
>
> @@ -910,7 +911,8 @@ tc358746_link_validate(struct v4l2_subdev *sd, struct media_link *link,
>         fmt = tc358746_get_format_by_code(TC358746_SINK, mbusfmt->code);
>
>         source = media_entity_to_v4l2_subdev(link->source->entity);
> -       source_link_freq = v4l2_get_link_freq(source->ctrl_handler, 0, 0);
> +       src_pad = &source->entity.pads[source_fmt->pad];
> +       source_link_freq = v4l2_get_link_freq(src_pad, 0, 0);
>         if (source_link_freq <= 0) {
>                 dev_err(tc358746->sd.dev,
>                         "Failed to query or invalid source link frequency\n");
> diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2.c b/drivers/media/pci/intel/ipu3/ipu3-cio2.c
> index 4e98f432ed55..7731eb70fc8e 100644
> --- a/drivers/media/pci/intel/ipu3/ipu3-cio2.c
> +++ b/drivers/media/pci/intel/ipu3/ipu3-cio2.c
> @@ -309,12 +309,17 @@ static int cio2_csi2_calc_timing(struct cio2_device *cio2, struct cio2_queue *q,
>                                  unsigned int bpp, unsigned int lanes)
>  {
>         struct device *dev = &cio2->pci_dev->dev;
> +       struct media_pad *src_pad;
>         s64 freq;
>
> -       if (!q->sensor)
> -               return -ENODEV;
> +       src_pad = media_entity_remote_source_pad_unique(&q->subdev.entity);
> +       if (IS_ERR(src_pad)) {
> +               dev_err(dev, "can't get source pad of %s (%ld)\n",
> +                       q->subdev.name, PTR_ERR(src_pad));
> +               return PTR_ERR(src_pad);
> +       }
>
> -       freq = v4l2_get_link_freq(q->sensor->ctrl_handler, bpp, lanes * 2);
> +       freq = v4l2_get_link_freq(src_pad, bpp, lanes * 2);
>         if (freq < 0) {
>                 dev_err(dev, "error %lld, invalid link_freq\n", freq);
>                 return freq;
> diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c
> index 4d64df829e75..cebcae196eec 100644
> --- a/drivers/media/platform/cadence/cdns-csi2rx.c
> +++ b/drivers/media/platform/cadence/cdns-csi2rx.c
> @@ -164,6 +164,8 @@ static void csi2rx_reset(struct csi2rx_priv *csi2rx)
>
>  static int csi2rx_configure_ext_dphy(struct csi2rx_priv *csi2rx)
>  {
> +       struct media_pad *src_pad =
> +               &csi2rx->source_subdev->entity.pads[csi2rx->source_pad];
>         union phy_configure_opts opts = { };
>         struct phy_configure_opts_mipi_dphy *cfg = &opts.mipi_dphy;
>         struct v4l2_subdev_format sd_fmt = {
> @@ -181,7 +183,7 @@ static int csi2rx_configure_ext_dphy(struct csi2rx_priv *csi2rx)
>
>         fmt = csi2rx_get_fmt_by_code(sd_fmt.format.code);
>
> -       link_freq = v4l2_get_link_freq(csi2rx->source_subdev->ctrl_handler,
> +       link_freq = v4l2_get_link_freq(src_pad,
>                                        fmt->bpp, 2 * csi2rx->num_lanes);
>         if (link_freq < 0)
>                 return link_freq;
> diff --git a/drivers/media/platform/nxp/imx-mipi-csis.c b/drivers/media/platform/nxp/imx-mipi-csis.c
> index 29523bb84d95..d060eadebc7a 100644
> --- a/drivers/media/platform/nxp/imx-mipi-csis.c
> +++ b/drivers/media/platform/nxp/imx-mipi-csis.c
> @@ -597,12 +597,13 @@ static void __mipi_csis_set_format(struct mipi_csis_device *csis,
>  static int mipi_csis_calculate_params(struct mipi_csis_device *csis,
>                                       const struct csis_pix_format *csis_fmt)
>  {
> +       struct media_pad *src_pad =
> +               &csis->source.sd->entity.pads[csis->source.pad->index];
>         s64 link_freq;
>         u32 lane_rate;
>
>         /* Calculate the line rate from the pixel rate. */
> -       link_freq = v4l2_get_link_freq(csis->source.sd->ctrl_handler,
> -                                      csis_fmt->width,
> +       link_freq = v4l2_get_link_freq(src_pad, csis_fmt->width,
>                                        csis->bus.num_data_lanes * 2);
>         if (link_freq < 0) {
>                 dev_err(csis->dev, "Unable to obtain link frequency: %d\n",
> diff --git a/drivers/media/platform/nxp/imx8mq-mipi-csi2.c b/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
> index 1f2657cf6e82..a8bcf60e2f37 100644
> --- a/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
> +++ b/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
> @@ -287,6 +287,7 @@ static int imx8mq_mipi_csi_calc_hs_settle(struct csi_state *state,
>                                           struct v4l2_subdev_state *sd_state,
>                                           u32 *hs_settle)
>  {
> +       struct media_pad *src_pad;
>         s64 link_freq;
>         u32 lane_rate;
>         unsigned long esc_clk_rate;
> @@ -294,13 +295,19 @@ static int imx8mq_mipi_csi_calc_hs_settle(struct csi_state *state,
>         const struct v4l2_mbus_framefmt *fmt;
>         const struct csi2_pix_format *csi2_fmt;
>
> +       src_pad = media_entity_remote_source_pad_unique(&sd_state->sd->entity);
> +       if (IS_ERR(src_pad)) {
> +               dev_err(state->dev, "can't get source pad of %s (%ld)\n",
> +                       sd_state->sd->name, PTR_ERR(src_pad));
> +               return PTR_ERR(src_pad);
> +       }
> +
>         /* Calculate the line rate from the pixel rate. */
>
>         fmt = v4l2_subdev_state_get_format(sd_state, MIPI_CSI2_PAD_SINK);
>         csi2_fmt = find_csi2_format(fmt->code);
>
> -       link_freq = v4l2_get_link_freq(state->src_sd->ctrl_handler,
> -                                      csi2_fmt->width,
> +       link_freq = v4l2_get_link_freq(src_pad, csi2_fmt->width,
>                                        state->bus.num_data_lanes * 2);
>         if (link_freq < 0) {
>                 dev_err(state->dev, "Unable to obtain link frequency: %d\n",
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe-17x.c b/drivers/media/platform/qcom/camss/camss-vfe-17x.c
> index 380c99321030..cc93f79179dd 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe-17x.c
> +++ b/drivers/media/platform/qcom/camss/camss-vfe-17x.c
> @@ -443,16 +443,18 @@ static int vfe_enable_output(struct vfe_line *line)
>         struct vfe_device *vfe = to_vfe(line);
>         struct vfe_output *output = &line->output;
>         const struct vfe_hw_ops *ops = vfe->res->hw_ops;
> -       struct media_entity *sensor;
> +       struct media_pad *sensor;
>         unsigned long flags;
>         unsigned int frame_skip = 0;
>         unsigned int i;
>
>         sensor = camss_find_sensor(&line->subdev.entity);
>         if (sensor) {
> -               struct v4l2_subdev *subdev = media_entity_to_v4l2_subdev(sensor);
> +               struct v4l2_subdev *subdev =
> +                       media_entity_to_v4l2_subdev(sensor->entity);
>
> -               v4l2_subdev_call(subdev, sensor, g_skip_frames, &frame_skip);
> +               v4l2_subdev_call(subdev, sensor, g_skip_frames,
> +                                &frame_skip);
>                 /* Max frame skip is 29 frames */
>                 if (frame_skip > VFE_FRAME_DROP_VAL - 1)
>                         frame_skip = VFE_FRAME_DROP_VAL - 1;
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe-gen1.c b/drivers/media/platform/qcom/camss/camss-vfe-gen1.c
> index eb33c03df27e..1970f7aa6d4d 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe-gen1.c
> +++ b/drivers/media/platform/qcom/camss/camss-vfe-gen1.c
> @@ -170,7 +170,7 @@ static int vfe_enable_output(struct vfe_line *line)
>         struct vfe_device *vfe = to_vfe(line);
>         struct vfe_output *output = &line->output;
>         const struct vfe_hw_ops *ops = vfe->res->hw_ops;
> -       struct media_entity *sensor;
> +       struct media_pad *sensor;
>         unsigned long flags;
>         unsigned int frame_skip = 0;
>         unsigned int i;
> @@ -182,9 +182,11 @@ static int vfe_enable_output(struct vfe_line *line)
>
>         sensor = camss_find_sensor(&line->subdev.entity);
>         if (sensor) {
> -               struct v4l2_subdev *subdev = media_entity_to_v4l2_subdev(sensor);
> +               struct v4l2_subdev *subdev =
> +                       media_entity_to_v4l2_subdev(sensor->entity);
>
> -               v4l2_subdev_call(subdev, sensor, g_skip_frames, &frame_skip);
> +               v4l2_subdev_call(subdev, sensor, g_skip_frames,
> +                                &frame_skip);
>                 /* Max frame skip is 29 frames */
>                 if (frame_skip > VFE_FRAME_DROP_VAL - 1)
>                         frame_skip = VFE_FRAME_DROP_VAL - 1;
> diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
> index 004a74f6b2f6..e86de4b59723 100644
> --- a/drivers/media/platform/qcom/camss/camss.c
> +++ b/drivers/media/platform/qcom/camss/camss.c
> @@ -1996,12 +1996,12 @@ void camss_disable_clocks(int nclocks, struct camss_clock *clock)
>  }
>
>  /*
> - * camss_find_sensor - Find a linked media entity which represents a sensor
> + * camss_find_sensor - Find the media pad via which the sensor is linked
>   * @entity: Media entity to start searching from
>   *
>   * Return a pointer to sensor media entity or NULL if not found
>   */
> -struct media_entity *camss_find_sensor(struct media_entity *entity)
> +struct media_pad *camss_find_sensor(struct media_entity *entity)
>  {
>         struct media_pad *pad;
>
> @@ -2017,7 +2017,7 @@ struct media_entity *camss_find_sensor(struct media_entity *entity)
>                 entity = pad->entity;
>
>                 if (entity->function == MEDIA_ENT_F_CAM_SENSOR)
> -                       return entity;
> +                       return pad;
>         }
>  }
>
> @@ -2032,16 +2032,13 @@ struct media_entity *camss_find_sensor(struct media_entity *entity)
>  s64 camss_get_link_freq(struct media_entity *entity, unsigned int bpp,
>                         unsigned int lanes)
>  {
> -       struct media_entity *sensor;
> -       struct v4l2_subdev *subdev;
> +       struct media_pad *sensor;
>
>         sensor = camss_find_sensor(entity);
>         if (!sensor)
>                 return -ENODEV;
>
> -       subdev = media_entity_to_v4l2_subdev(sensor);
> -
> -       return v4l2_get_link_freq(subdev->ctrl_handler, bpp, 2 * lanes);
> +       return v4l2_get_link_freq(sensor, bpp, 2 * lanes);
>  }
>
>  /*
> @@ -2053,7 +2050,7 @@ s64 camss_get_link_freq(struct media_entity *entity, unsigned int bpp,
>   */
>  int camss_get_pixel_clock(struct media_entity *entity, u64 *pixel_clock)
>  {
> -       struct media_entity *sensor;
> +       struct media_pad *sensor;
>         struct v4l2_subdev *subdev;
>         struct v4l2_ctrl *ctrl;
>
> @@ -2061,7 +2058,7 @@ int camss_get_pixel_clock(struct media_entity *entity, u64 *pixel_clock)
>         if (!sensor)
>                 return -ENODEV;
>
> -       subdev = media_entity_to_v4l2_subdev(sensor);
> +       subdev = media_entity_to_v4l2_subdev(sensor->entity);
>
>         ctrl = v4l2_ctrl_find(subdev->ctrl_handler, V4L2_CID_PIXEL_RATE);
>
> diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
> index 9a046eea334f..6da7131c0aaa 100644
> --- a/drivers/media/platform/qcom/camss/camss.h
> +++ b/drivers/media/platform/qcom/camss/camss.h
> @@ -153,7 +153,7 @@ void camss_add_clock_margin(u64 *rate);
>  int camss_enable_clocks(int nclocks, struct camss_clock *clock,
>                         struct device *dev);
>  void camss_disable_clocks(int nclocks, struct camss_clock *clock);
> -struct media_entity *camss_find_sensor(struct media_entity *entity);
> +struct media_pad *camss_find_sensor(struct media_entity *entity);
>  s64 camss_get_link_freq(struct media_entity *entity, unsigned int bpp,
>                         unsigned int lanes);
>  int camss_get_pixel_clock(struct media_entity *entity, u64 *pixel_clock);
> diff --git a/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c b/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c
> index 12660087b12f..ed3d18917f2d 100644
> --- a/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c
> +++ b/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c
> @@ -1102,6 +1102,8 @@ static void cfe_buffer_queue(struct vb2_buffer *vb)
>
>  static s64 cfe_get_source_link_freq(struct cfe_device *cfe)
>  {
> +       struct media_pad *src_pad =
> +               &cfe->source_sd->entity.pads[cfe->source_pad];
>         struct v4l2_subdev_state *state;
>         s64 link_freq;
>         u32 bpp;
> @@ -1136,7 +1138,7 @@ static s64 cfe_get_source_link_freq(struct cfe_device *cfe)
>                 bpp = 0;
>         }
>
> -       link_freq = v4l2_get_link_freq(cfe->source_sd->ctrl_handler, bpp,
> +       link_freq = v4l2_get_link_freq(src_pad, bpp,
>                                        2 * cfe->csi2.dphy.active_lanes);
>         if (link_freq < 0)
>                 cfe_err(cfe, "failed to get link freq for subdev '%s'\n",
> diff --git a/drivers/media/platform/st/stm32/stm32-csi.c b/drivers/media/platform/st/stm32/stm32-csi.c
> index 48941aae8c9b..b25afeee4f24 100644
> --- a/drivers/media/platform/st/stm32/stm32-csi.c
> +++ b/drivers/media/platform/st/stm32/stm32-csi.c
> @@ -444,6 +444,8 @@ static void stm32_csi_phy_reg_write(struct stm32_csi_dev *csidev,
>  static int stm32_csi_start(struct stm32_csi_dev *csidev,
>                            struct v4l2_subdev_state *state)
>  {
> +       struct media_pad *src_pad =
> +               &csidev->s_subdev->entity.pads[csidev->s_subdev_pad_nb];
>         const struct stm32_csi_mbps_phy_reg *phy_regs;
>         struct v4l2_mbus_framefmt *sink_fmt;
>         const struct stm32_csi_fmts *fmt;
> @@ -465,7 +467,7 @@ static int stm32_csi_start(struct stm32_csi_dev *csidev,
>         if (!csidev->s_subdev)
>                 return -EIO;
>
> -       link_freq = v4l2_get_link_freq(csidev->s_subdev->ctrl_handler,
> +       link_freq = v4l2_get_link_freq(src_pad,
>                                        fmt->bpp, 2 * csidev->num_lanes);
>         if (link_freq < 0)
>                 return link_freq;
> diff --git a/drivers/media/platform/ti/cal/cal-camerarx.c b/drivers/media/platform/ti/cal/cal-camerarx.c
> index 42dfe08b765f..9cc875665695 100644
> --- a/drivers/media/platform/ti/cal/cal-camerarx.c
> +++ b/drivers/media/platform/ti/cal/cal-camerarx.c
> @@ -65,7 +65,8 @@ static s64 cal_camerarx_get_ext_link_freq(struct cal_camerarx *phy)
>
>         bpp = fmtinfo->bpp;
>
> -       freq = v4l2_get_link_freq(phy->source->ctrl_handler, bpp, 2 * num_lanes);
> +       freq = v4l2_get_link_freq(&phy->source->entity.pads[phy->source_pad],
> +                                 bpp, 2 * num_lanes);
>         if (freq < 0) {
>                 phy_err(phy, "failed to get link freq for subdev '%s'\n",
>                         phy->source->name);
> diff --git a/drivers/media/platform/ti/cal/cal.c b/drivers/media/platform/ti/cal/cal.c
> index 4bd2092e0255..6cb3e5f49686 100644
> --- a/drivers/media/platform/ti/cal/cal.c
> +++ b/drivers/media/platform/ti/cal/cal.c
> @@ -798,7 +798,6 @@ static int cal_async_notifier_bound(struct v4l2_async_notifier *notifier,
>                 return 0;
>         }
>
> -       phy->source = subdev;
>         phy_dbg(1, phy, "Using source %s for capture\n", subdev->name);
>
>         pad = media_entity_get_fwnode_pad(&subdev->entity,
> @@ -820,6 +819,9 @@ static int cal_async_notifier_bound(struct v4l2_async_notifier *notifier,
>                 return ret;
>         }
>
> +       phy->source = subdev;
> +       phy->source_pad = pad;
> +
>         return 0;
>  }
>
> diff --git a/drivers/media/platform/ti/cal/cal.h b/drivers/media/platform/ti/cal/cal.h
> index 0856297adc0b..72a246a64d9e 100644
> --- a/drivers/media/platform/ti/cal/cal.h
> +++ b/drivers/media/platform/ti/cal/cal.h
> @@ -174,6 +174,7 @@ struct cal_camerarx {
>         struct device_node      *source_ep_node;
>         struct device_node      *source_node;
>         struct v4l2_subdev      *source;
> +       unsigned int            source_pad;
>
>         struct v4l2_subdev      subdev;
>         struct media_pad        pads[CAL_CAMERARX_NUM_PADS];
> --
> 2.39.5
>
diff mbox series

Patch

diff --git a/drivers/media/i2c/st-mipid02.c b/drivers/media/i2c/st-mipid02.c
index f08db3cfe076..f4568e87f018 100644
--- a/drivers/media/i2c/st-mipid02.c
+++ b/drivers/media/i2c/st-mipid02.c
@@ -301,8 +301,9 @@  static int mipid02_detect(struct mipid02_dev *bridge)
 static int mipid02_configure_from_rx_speed(struct mipid02_dev *bridge,
 					   struct v4l2_mbus_framefmt *fmt)
 {
+	struct media_pad *remote =
+		&bridge->s_subdev->entity.pads[bridge->s_subdev_pad_id];
 	struct i2c_client *client = bridge->i2c_client;
-	struct v4l2_subdev *subdev = bridge->s_subdev;
 	struct v4l2_fwnode_endpoint *ep = &bridge->rx;
 	u32 bpp = bpp_from_code(fmt->code);
 	/*
@@ -312,7 +313,7 @@  static int mipid02_configure_from_rx_speed(struct mipid02_dev *bridge,
 	u64 ui_4 = 2000000000;
 	s64 link_freq;
 
-	link_freq = v4l2_get_link_freq(subdev->ctrl_handler, bpp,
+	link_freq = v4l2_get_link_freq(remote, bpp,
 				       2 * ep->bus.mipi_csi2.num_data_lanes);
 	if (link_freq < 0) {
 		dev_err(&client->dev, "Failed to get link frequency");
diff --git a/drivers/media/i2c/tc358746.c b/drivers/media/i2c/tc358746.c
index 389582420ba7..31586f8e4be4 100644
--- a/drivers/media/i2c/tc358746.c
+++ b/drivers/media/i2c/tc358746.c
@@ -896,6 +896,7 @@  tc358746_link_validate(struct v4l2_subdev *sd, struct media_link *link,
 	const struct tc358746_format *fmt;
 	unsigned int fifo_sz, tmp, n;
 	struct v4l2_subdev *source;
+	struct media_pad *src_pad;
 	s64 source_link_freq;
 	int err;
 
@@ -910,7 +911,8 @@  tc358746_link_validate(struct v4l2_subdev *sd, struct media_link *link,
 	fmt = tc358746_get_format_by_code(TC358746_SINK, mbusfmt->code);
 
 	source = media_entity_to_v4l2_subdev(link->source->entity);
-	source_link_freq = v4l2_get_link_freq(source->ctrl_handler, 0, 0);
+	src_pad = &source->entity.pads[source_fmt->pad];
+	source_link_freq = v4l2_get_link_freq(src_pad, 0, 0);
 	if (source_link_freq <= 0) {
 		dev_err(tc358746->sd.dev,
 			"Failed to query or invalid source link frequency\n");
diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2.c b/drivers/media/pci/intel/ipu3/ipu3-cio2.c
index 4e98f432ed55..7731eb70fc8e 100644
--- a/drivers/media/pci/intel/ipu3/ipu3-cio2.c
+++ b/drivers/media/pci/intel/ipu3/ipu3-cio2.c
@@ -309,12 +309,17 @@  static int cio2_csi2_calc_timing(struct cio2_device *cio2, struct cio2_queue *q,
 				 unsigned int bpp, unsigned int lanes)
 {
 	struct device *dev = &cio2->pci_dev->dev;
+	struct media_pad *src_pad;
 	s64 freq;
 
-	if (!q->sensor)
-		return -ENODEV;
+	src_pad = media_entity_remote_source_pad_unique(&q->subdev.entity);
+	if (IS_ERR(src_pad)) {
+		dev_err(dev, "can't get source pad of %s (%ld)\n",
+			q->subdev.name, PTR_ERR(src_pad));
+		return PTR_ERR(src_pad);
+	}
 
-	freq = v4l2_get_link_freq(q->sensor->ctrl_handler, bpp, lanes * 2);
+	freq = v4l2_get_link_freq(src_pad, bpp, lanes * 2);
 	if (freq < 0) {
 		dev_err(dev, "error %lld, invalid link_freq\n", freq);
 		return freq;
diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c
index 4d64df829e75..cebcae196eec 100644
--- a/drivers/media/platform/cadence/cdns-csi2rx.c
+++ b/drivers/media/platform/cadence/cdns-csi2rx.c
@@ -164,6 +164,8 @@  static void csi2rx_reset(struct csi2rx_priv *csi2rx)
 
 static int csi2rx_configure_ext_dphy(struct csi2rx_priv *csi2rx)
 {
+	struct media_pad *src_pad =
+		&csi2rx->source_subdev->entity.pads[csi2rx->source_pad];
 	union phy_configure_opts opts = { };
 	struct phy_configure_opts_mipi_dphy *cfg = &opts.mipi_dphy;
 	struct v4l2_subdev_format sd_fmt = {
@@ -181,7 +183,7 @@  static int csi2rx_configure_ext_dphy(struct csi2rx_priv *csi2rx)
 
 	fmt = csi2rx_get_fmt_by_code(sd_fmt.format.code);
 
-	link_freq = v4l2_get_link_freq(csi2rx->source_subdev->ctrl_handler,
+	link_freq = v4l2_get_link_freq(src_pad,
 				       fmt->bpp, 2 * csi2rx->num_lanes);
 	if (link_freq < 0)
 		return link_freq;
diff --git a/drivers/media/platform/nxp/imx-mipi-csis.c b/drivers/media/platform/nxp/imx-mipi-csis.c
index 29523bb84d95..d060eadebc7a 100644
--- a/drivers/media/platform/nxp/imx-mipi-csis.c
+++ b/drivers/media/platform/nxp/imx-mipi-csis.c
@@ -597,12 +597,13 @@  static void __mipi_csis_set_format(struct mipi_csis_device *csis,
 static int mipi_csis_calculate_params(struct mipi_csis_device *csis,
 				      const struct csis_pix_format *csis_fmt)
 {
+	struct media_pad *src_pad =
+		&csis->source.sd->entity.pads[csis->source.pad->index];
 	s64 link_freq;
 	u32 lane_rate;
 
 	/* Calculate the line rate from the pixel rate. */
-	link_freq = v4l2_get_link_freq(csis->source.sd->ctrl_handler,
-				       csis_fmt->width,
+	link_freq = v4l2_get_link_freq(src_pad, csis_fmt->width,
 				       csis->bus.num_data_lanes * 2);
 	if (link_freq < 0) {
 		dev_err(csis->dev, "Unable to obtain link frequency: %d\n",
diff --git a/drivers/media/platform/nxp/imx8mq-mipi-csi2.c b/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
index 1f2657cf6e82..a8bcf60e2f37 100644
--- a/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
+++ b/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
@@ -287,6 +287,7 @@  static int imx8mq_mipi_csi_calc_hs_settle(struct csi_state *state,
 					  struct v4l2_subdev_state *sd_state,
 					  u32 *hs_settle)
 {
+	struct media_pad *src_pad;
 	s64 link_freq;
 	u32 lane_rate;
 	unsigned long esc_clk_rate;
@@ -294,13 +295,19 @@  static int imx8mq_mipi_csi_calc_hs_settle(struct csi_state *state,
 	const struct v4l2_mbus_framefmt *fmt;
 	const struct csi2_pix_format *csi2_fmt;
 
+	src_pad = media_entity_remote_source_pad_unique(&sd_state->sd->entity);
+	if (IS_ERR(src_pad)) {
+		dev_err(state->dev, "can't get source pad of %s (%ld)\n",
+			sd_state->sd->name, PTR_ERR(src_pad));
+		return PTR_ERR(src_pad);
+	}
+
 	/* Calculate the line rate from the pixel rate. */
 
 	fmt = v4l2_subdev_state_get_format(sd_state, MIPI_CSI2_PAD_SINK);
 	csi2_fmt = find_csi2_format(fmt->code);
 
-	link_freq = v4l2_get_link_freq(state->src_sd->ctrl_handler,
-				       csi2_fmt->width,
+	link_freq = v4l2_get_link_freq(src_pad, csi2_fmt->width,
 				       state->bus.num_data_lanes * 2);
 	if (link_freq < 0) {
 		dev_err(state->dev, "Unable to obtain link frequency: %d\n",
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-17x.c b/drivers/media/platform/qcom/camss/camss-vfe-17x.c
index 380c99321030..cc93f79179dd 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-17x.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-17x.c
@@ -443,16 +443,18 @@  static int vfe_enable_output(struct vfe_line *line)
 	struct vfe_device *vfe = to_vfe(line);
 	struct vfe_output *output = &line->output;
 	const struct vfe_hw_ops *ops = vfe->res->hw_ops;
-	struct media_entity *sensor;
+	struct media_pad *sensor;
 	unsigned long flags;
 	unsigned int frame_skip = 0;
 	unsigned int i;
 
 	sensor = camss_find_sensor(&line->subdev.entity);
 	if (sensor) {
-		struct v4l2_subdev *subdev = media_entity_to_v4l2_subdev(sensor);
+		struct v4l2_subdev *subdev =
+			media_entity_to_v4l2_subdev(sensor->entity);
 
-		v4l2_subdev_call(subdev, sensor, g_skip_frames, &frame_skip);
+		v4l2_subdev_call(subdev, sensor, g_skip_frames,
+				 &frame_skip);
 		/* Max frame skip is 29 frames */
 		if (frame_skip > VFE_FRAME_DROP_VAL - 1)
 			frame_skip = VFE_FRAME_DROP_VAL - 1;
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-gen1.c b/drivers/media/platform/qcom/camss/camss-vfe-gen1.c
index eb33c03df27e..1970f7aa6d4d 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-gen1.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-gen1.c
@@ -170,7 +170,7 @@  static int vfe_enable_output(struct vfe_line *line)
 	struct vfe_device *vfe = to_vfe(line);
 	struct vfe_output *output = &line->output;
 	const struct vfe_hw_ops *ops = vfe->res->hw_ops;
-	struct media_entity *sensor;
+	struct media_pad *sensor;
 	unsigned long flags;
 	unsigned int frame_skip = 0;
 	unsigned int i;
@@ -182,9 +182,11 @@  static int vfe_enable_output(struct vfe_line *line)
 
 	sensor = camss_find_sensor(&line->subdev.entity);
 	if (sensor) {
-		struct v4l2_subdev *subdev = media_entity_to_v4l2_subdev(sensor);
+		struct v4l2_subdev *subdev =
+			media_entity_to_v4l2_subdev(sensor->entity);
 
-		v4l2_subdev_call(subdev, sensor, g_skip_frames, &frame_skip);
+		v4l2_subdev_call(subdev, sensor, g_skip_frames,
+				 &frame_skip);
 		/* Max frame skip is 29 frames */
 		if (frame_skip > VFE_FRAME_DROP_VAL - 1)
 			frame_skip = VFE_FRAME_DROP_VAL - 1;
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 004a74f6b2f6..e86de4b59723 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -1996,12 +1996,12 @@  void camss_disable_clocks(int nclocks, struct camss_clock *clock)
 }
 
 /*
- * camss_find_sensor - Find a linked media entity which represents a sensor
+ * camss_find_sensor - Find the media pad via which the sensor is linked
  * @entity: Media entity to start searching from
  *
  * Return a pointer to sensor media entity or NULL if not found
  */
-struct media_entity *camss_find_sensor(struct media_entity *entity)
+struct media_pad *camss_find_sensor(struct media_entity *entity)
 {
 	struct media_pad *pad;
 
@@ -2017,7 +2017,7 @@  struct media_entity *camss_find_sensor(struct media_entity *entity)
 		entity = pad->entity;
 
 		if (entity->function == MEDIA_ENT_F_CAM_SENSOR)
-			return entity;
+			return pad;
 	}
 }
 
@@ -2032,16 +2032,13 @@  struct media_entity *camss_find_sensor(struct media_entity *entity)
 s64 camss_get_link_freq(struct media_entity *entity, unsigned int bpp,
 			unsigned int lanes)
 {
-	struct media_entity *sensor;
-	struct v4l2_subdev *subdev;
+	struct media_pad *sensor;
 
 	sensor = camss_find_sensor(entity);
 	if (!sensor)
 		return -ENODEV;
 
-	subdev = media_entity_to_v4l2_subdev(sensor);
-
-	return v4l2_get_link_freq(subdev->ctrl_handler, bpp, 2 * lanes);
+	return v4l2_get_link_freq(sensor, bpp, 2 * lanes);
 }
 
 /*
@@ -2053,7 +2050,7 @@  s64 camss_get_link_freq(struct media_entity *entity, unsigned int bpp,
  */
 int camss_get_pixel_clock(struct media_entity *entity, u64 *pixel_clock)
 {
-	struct media_entity *sensor;
+	struct media_pad *sensor;
 	struct v4l2_subdev *subdev;
 	struct v4l2_ctrl *ctrl;
 
@@ -2061,7 +2058,7 @@  int camss_get_pixel_clock(struct media_entity *entity, u64 *pixel_clock)
 	if (!sensor)
 		return -ENODEV;
 
-	subdev = media_entity_to_v4l2_subdev(sensor);
+	subdev = media_entity_to_v4l2_subdev(sensor->entity);
 
 	ctrl = v4l2_ctrl_find(subdev->ctrl_handler, V4L2_CID_PIXEL_RATE);
 
diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
index 9a046eea334f..6da7131c0aaa 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -153,7 +153,7 @@  void camss_add_clock_margin(u64 *rate);
 int camss_enable_clocks(int nclocks, struct camss_clock *clock,
 			struct device *dev);
 void camss_disable_clocks(int nclocks, struct camss_clock *clock);
-struct media_entity *camss_find_sensor(struct media_entity *entity);
+struct media_pad *camss_find_sensor(struct media_entity *entity);
 s64 camss_get_link_freq(struct media_entity *entity, unsigned int bpp,
 			unsigned int lanes);
 int camss_get_pixel_clock(struct media_entity *entity, u64 *pixel_clock);
diff --git a/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c b/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c
index 12660087b12f..ed3d18917f2d 100644
--- a/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c
+++ b/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c
@@ -1102,6 +1102,8 @@  static void cfe_buffer_queue(struct vb2_buffer *vb)
 
 static s64 cfe_get_source_link_freq(struct cfe_device *cfe)
 {
+	struct media_pad *src_pad =
+		&cfe->source_sd->entity.pads[cfe->source_pad];
 	struct v4l2_subdev_state *state;
 	s64 link_freq;
 	u32 bpp;
@@ -1136,7 +1138,7 @@  static s64 cfe_get_source_link_freq(struct cfe_device *cfe)
 		bpp = 0;
 	}
 
-	link_freq = v4l2_get_link_freq(cfe->source_sd->ctrl_handler, bpp,
+	link_freq = v4l2_get_link_freq(src_pad, bpp,
 				       2 * cfe->csi2.dphy.active_lanes);
 	if (link_freq < 0)
 		cfe_err(cfe, "failed to get link freq for subdev '%s'\n",
diff --git a/drivers/media/platform/st/stm32/stm32-csi.c b/drivers/media/platform/st/stm32/stm32-csi.c
index 48941aae8c9b..b25afeee4f24 100644
--- a/drivers/media/platform/st/stm32/stm32-csi.c
+++ b/drivers/media/platform/st/stm32/stm32-csi.c
@@ -444,6 +444,8 @@  static void stm32_csi_phy_reg_write(struct stm32_csi_dev *csidev,
 static int stm32_csi_start(struct stm32_csi_dev *csidev,
 			   struct v4l2_subdev_state *state)
 {
+	struct media_pad *src_pad =
+		&csidev->s_subdev->entity.pads[csidev->s_subdev_pad_nb];
 	const struct stm32_csi_mbps_phy_reg *phy_regs;
 	struct v4l2_mbus_framefmt *sink_fmt;
 	const struct stm32_csi_fmts *fmt;
@@ -465,7 +467,7 @@  static int stm32_csi_start(struct stm32_csi_dev *csidev,
 	if (!csidev->s_subdev)
 		return -EIO;
 
-	link_freq = v4l2_get_link_freq(csidev->s_subdev->ctrl_handler,
+	link_freq = v4l2_get_link_freq(src_pad,
 				       fmt->bpp, 2 * csidev->num_lanes);
 	if (link_freq < 0)
 		return link_freq;
diff --git a/drivers/media/platform/ti/cal/cal-camerarx.c b/drivers/media/platform/ti/cal/cal-camerarx.c
index 42dfe08b765f..9cc875665695 100644
--- a/drivers/media/platform/ti/cal/cal-camerarx.c
+++ b/drivers/media/platform/ti/cal/cal-camerarx.c
@@ -65,7 +65,8 @@  static s64 cal_camerarx_get_ext_link_freq(struct cal_camerarx *phy)
 
 	bpp = fmtinfo->bpp;
 
-	freq = v4l2_get_link_freq(phy->source->ctrl_handler, bpp, 2 * num_lanes);
+	freq = v4l2_get_link_freq(&phy->source->entity.pads[phy->source_pad],
+				  bpp, 2 * num_lanes);
 	if (freq < 0) {
 		phy_err(phy, "failed to get link freq for subdev '%s'\n",
 			phy->source->name);
diff --git a/drivers/media/platform/ti/cal/cal.c b/drivers/media/platform/ti/cal/cal.c
index 4bd2092e0255..6cb3e5f49686 100644
--- a/drivers/media/platform/ti/cal/cal.c
+++ b/drivers/media/platform/ti/cal/cal.c
@@ -798,7 +798,6 @@  static int cal_async_notifier_bound(struct v4l2_async_notifier *notifier,
 		return 0;
 	}
 
-	phy->source = subdev;
 	phy_dbg(1, phy, "Using source %s for capture\n", subdev->name);
 
 	pad = media_entity_get_fwnode_pad(&subdev->entity,
@@ -820,6 +819,9 @@  static int cal_async_notifier_bound(struct v4l2_async_notifier *notifier,
 		return ret;
 	}
 
+	phy->source = subdev;
+	phy->source_pad = pad;
+
 	return 0;
 }
 
diff --git a/drivers/media/platform/ti/cal/cal.h b/drivers/media/platform/ti/cal/cal.h
index 0856297adc0b..72a246a64d9e 100644
--- a/drivers/media/platform/ti/cal/cal.h
+++ b/drivers/media/platform/ti/cal/cal.h
@@ -174,6 +174,7 @@  struct cal_camerarx {
 	struct device_node	*source_ep_node;
 	struct device_node	*source_node;
 	struct v4l2_subdev	*source;
+	unsigned int		source_pad;
 
 	struct v4l2_subdev	subdev;
 	struct media_pad	pads[CAL_CAMERARX_NUM_PADS];