Hi Dafna,
Thanks for the patch, just a small comment below.
On 3/12/20 12:46 PM, Dafna Hirschfeld wrote:
> 'struct v4l2_mbus_config' is a legacy struct that should not be used
> in new drivers. So replace it with the fields:
>
> enum v4l2_mbus_type mbus_type;
> unsigned int parallel_bus_flags;
>
> The field 'parallel_bus_flags' is used only for buses of types
> V4L2_MBUS_BT656, V4L2_MBUS_PARALLEL which are not yet supported
> so they are set to 0.
>
> Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@xxxxxxxxxxxxx>
> ---
> drivers/staging/media/rkisp1/rkisp1-common.h | 3 +-
> drivers/staging/media/rkisp1/rkisp1-dev.c | 22 ++-------
> drivers/staging/media/rkisp1/rkisp1-isp.c | 52 +++++++-------------
> 3 files changed, 24 insertions(+), 53 deletions(-)
>
> diff --git a/drivers/staging/media/rkisp1/rkisp1-common.h b/drivers/staging/media/rkisp1/rkisp1-common.h
> index b291cc60de8e..f5ee72dc19d3 100644
> --- a/drivers/staging/media/rkisp1/rkisp1-common.h
> +++ b/drivers/staging/media/rkisp1/rkisp1-common.h
> @@ -80,8 +80,9 @@ enum rkisp1_isp_pad {
> */
> struct rkisp1_sensor_async {
> struct v4l2_async_subdev asd;
> - struct v4l2_mbus_config mbus;
> unsigned int lanes;
> + enum v4l2_mbus_type mbus_type;
> + unsigned int parallel_bus_flags;
> struct v4l2_subdev *sd;
> struct v4l2_ctrl *pixel_rate_ctrl;
> struct phy *dphy;
> diff --git a/drivers/staging/media/rkisp1/rkisp1-dev.c b/drivers/staging/media/rkisp1/rkisp1-dev.c
> index b1b3c058e957..d2186856bb24 100644
> --- a/drivers/staging/media/rkisp1/rkisp1-dev.c
> +++ b/drivers/staging/media/rkisp1/rkisp1-dev.c
> @@ -250,26 +250,14 @@ static int rkisp1_fwnode_parse(struct device *dev,
> return -EINVAL;
> }
>
> - s_asd->mbus.type = vep->bus_type;
> - s_asd->mbus.flags = vep->bus.mipi_csi2.flags;
> + s_asd->mbus_type = vep->bus_type;
> s_asd->lanes = vep->bus.mipi_csi2.num_data_lanes;
>
> - switch (vep->bus.mipi_csi2.num_data_lanes) {
> - case 1:
> - s_asd->mbus.flags |= V4L2_MBUS_CSI2_1_LANE;
> - break;
> - case 2:
> - s_asd->mbus.flags |= V4L2_MBUS_CSI2_2_LANE;
> - break;
> - case 3:
> - s_asd->mbus.flags |= V4L2_MBUS_CSI2_3_LANE;
> - break;
> - case 4:
> - s_asd->mbus.flags |= V4L2_MBUS_CSI2_4_LANE;
> - break;
> - default:
> + /* Parallel bus is currently not supported */
> + s_asd->parallel_bus_flags = 0;
Why not just:
s_asd->parallel_bus_flags = vep->bus.mipi_csi2.flags
So when it gets supported, we don't need to change this, and you also don't
change the logic here, since this patch was supposed to just replace
struct v4l2_mbus_config by other variables.
Make sense?
> +
> + if (s_asd->lanes < 1 || s_asd->lanes > 4)
> return -EINVAL;
> - }
>
> return 0;
> }
> diff --git a/drivers/staging/media/rkisp1/rkisp1-isp.c b/drivers/staging/media/rkisp1/rkisp1-isp.c
> index fa53f05e37d8..bd17c3c498af 100644
> --- a/drivers/staging/media/rkisp1/rkisp1-isp.c
> +++ b/drivers/staging/media/rkisp1/rkisp1-isp.c
> @@ -291,7 +291,7 @@ static int rkisp1_config_isp(struct rkisp1_device *rkisp1)
> if (sink_fmt->fmt_type == RKISP1_FMT_BAYER) {
> acq_mult = 1;
> if (src_fmt->fmt_type == RKISP1_FMT_BAYER) {
> - if (sensor->mbus.type == V4L2_MBUS_BT656)
> + if (sensor->mbus_type == V4L2_MBUS_BT656)
> isp_ctrl = RKISP1_CIF_ISP_CTRL_ISP_MODE_RAW_PICT_ITU656;
> else
> isp_ctrl = RKISP1_CIF_ISP_CTRL_ISP_MODE_RAW_PICT;
> @@ -299,17 +299,17 @@ static int rkisp1_config_isp(struct rkisp1_device *rkisp1)
> rkisp1_write(rkisp1, RKISP1_CIF_ISP_DEMOSAIC_TH(0xc),
> RKISP1_CIF_ISP_DEMOSAIC);
>
> - if (sensor->mbus.type == V4L2_MBUS_BT656)
> + if (sensor->mbus_type == V4L2_MBUS_BT656)
> isp_ctrl = RKISP1_CIF_ISP_CTRL_ISP_MODE_BAYER_ITU656;
> else
> isp_ctrl = RKISP1_CIF_ISP_CTRL_ISP_MODE_BAYER_ITU601;
> }
> } else if (sink_fmt->fmt_type == RKISP1_FMT_YUV) {
> acq_mult = 2;
> - if (sensor->mbus.type == V4L2_MBUS_CSI2_DPHY) {
> + if (sensor->mbus_type == V4L2_MBUS_CSI2_DPHY) {
> isp_ctrl = RKISP1_CIF_ISP_CTRL_ISP_MODE_ITU601;
> } else {
> - if (sensor->mbus.type == V4L2_MBUS_BT656)
> + if (sensor->mbus_type == V4L2_MBUS_BT656)
> isp_ctrl = RKISP1_CIF_ISP_CTRL_ISP_MODE_ITU656;
> else
> isp_ctrl = RKISP1_CIF_ISP_CTRL_ISP_MODE_ITU601;
> @@ -319,17 +319,17 @@ static int rkisp1_config_isp(struct rkisp1_device *rkisp1)
> }
>
> /* Set up input acquisition properties */
> - if (sensor->mbus.type == V4L2_MBUS_BT656 ||
> - sensor->mbus.type == V4L2_MBUS_PARALLEL) {
> - if (sensor->mbus.flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
> + if (sensor->mbus_type == V4L2_MBUS_BT656 ||
> + sensor->mbus_type == V4L2_MBUS_PARALLEL) {
> + if (sensor->parallel_bus_flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
> signal = RKISP1_CIF_ISP_ACQ_PROP_POS_EDGE;
You check both bus types, I understand that V4L2_MBUS_BT656 is also a parallel interface,
but I think it would be less confusing to name it just bus_flags, what do you think?
Regards,
Helen
> }
>
> - if (sensor->mbus.type == V4L2_MBUS_PARALLEL) {
> - if (sensor->mbus.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
> + if (sensor->mbus_type == V4L2_MBUS_PARALLEL) {
> + if (sensor->parallel_bus_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
> signal |= RKISP1_CIF_ISP_ACQ_PROP_VSYNC_LOW;
>
> - if (sensor->mbus.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
> + if (sensor->parallel_bus_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
> signal |= RKISP1_CIF_ISP_ACQ_PROP_HSYNC_LOW;
> }
>
> @@ -401,29 +401,11 @@ static int rkisp1_config_dvp(struct rkisp1_device *rkisp1)
> static int rkisp1_config_mipi(struct rkisp1_device *rkisp1)
> {
> const struct rkisp1_isp_mbus_info *sink_fmt = rkisp1->isp.sink_fmt;
> - unsigned int lanes;
> + unsigned int lanes = rkisp1->active_sensor->lanes;
> u32 mipi_ctrl;
>
> - /*
> - * rkisp1->active_sensor->mbus is set in isp or d-phy notifier_bound
> - * function
> - */
> - switch (rkisp1->active_sensor->mbus.flags & V4L2_MBUS_CSI2_LANES) {
> - case V4L2_MBUS_CSI2_4_LANE:
> - lanes = 4;
> - break;
> - case V4L2_MBUS_CSI2_3_LANE:
> - lanes = 3;
> - break;
> - case V4L2_MBUS_CSI2_2_LANE:
> - lanes = 2;
> - break;
> - case V4L2_MBUS_CSI2_1_LANE:
> - lanes = 1;
> - break;
> - default:
> + if (lanes < 1 || lanes > 4)
> return -EINVAL;
> - }
>
> mipi_ctrl = RKISP1_CIF_MIPI_CTRL_NUM_LANES(lanes - 1) |
> RKISP1_CIF_MIPI_CTRL_SHUTDOWNLANES(0xf) |
> @@ -470,11 +452,11 @@ static int rkisp1_config_path(struct rkisp1_device *rkisp1)
> u32 dpcl = rkisp1_read(rkisp1, RKISP1_CIF_VI_DPCL);
> int ret = 0;
>
> - if (sensor->mbus.type == V4L2_MBUS_BT656 ||
> - sensor->mbus.type == V4L2_MBUS_PARALLEL) {
> + if (sensor->mbus_type == V4L2_MBUS_BT656 ||
> + sensor->mbus_type == V4L2_MBUS_PARALLEL) {
> ret = rkisp1_config_dvp(rkisp1);
> dpcl |= RKISP1_CIF_VI_DPCL_IF_SEL_PARALLEL;
> - } else if (sensor->mbus.type == V4L2_MBUS_CSI2_DPHY) {
> + } else if (sensor->mbus_type == V4L2_MBUS_CSI2_DPHY) {
> ret = rkisp1_config_mipi(rkisp1);
> dpcl |= RKISP1_CIF_VI_DPCL_IF_SEL_MIPI;
> }
> @@ -561,7 +543,7 @@ static void rkisp1_isp_start(struct rkisp1_device *rkisp1)
> rkisp1_config_clk(rkisp1);
>
> /* Activate MIPI */
> - if (sensor->mbus.type == V4L2_MBUS_CSI2_DPHY) {
> + if (sensor->mbus_type == V4L2_MBUS_CSI2_DPHY) {
> val = rkisp1_read(rkisp1, RKISP1_CIF_MIPI_CTRL);
> rkisp1_write(rkisp1, val | RKISP1_CIF_MIPI_CTRL_OUTPUT_ENA,
> RKISP1_CIF_MIPI_CTRL);
> @@ -956,7 +938,7 @@ static int rkisp1_isp_s_stream(struct v4l2_subdev *sd, int enable)
> rkisp1->active_sensor = container_of(sensor_sd->asd,
> struct rkisp1_sensor_async, asd);
>
> - if (rkisp1->active_sensor->mbus.type != V4L2_MBUS_CSI2_DPHY)
> + if (rkisp1->active_sensor->mbus_type != V4L2_MBUS_CSI2_DPHY)
> return -EINVAL;
>
> atomic_set(&rkisp1->isp.frame_sequence, -1);
>
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