| Message ID | 20190415124413.18456-8-m.felsch@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | TVP5150 new features | expand |
Hi Marco, On Mon, Apr 15, 2019 at 02:44:07PM +0200, Marco Felsch wrote: > Since commit 10d5509c8d50 ("[media] v4l2: remove g/s_crop from video ops") > the 'which' field for set/get_selection must be FORMAT_ACTIVE. There is > no way to try different selections. The patch adds a helper function to > select the correct selection memory space (sub-device file handle or > driver state) which will be set/returned. > > The TVP5150 AVID will be updated if the 'which' field is FORMAT_ACTIVE > and the requested selection rectangle differs from the already set one. > > Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> > --- > Changelog: > > v5: > - handle stub for v4l2_subdev_get_try_crop() internal since commit > ("media: v4l2-subdev: add stubs for v4l2_subdev_get_try_*") > isn't anymore part of this series. > - add error handling of __tvp5150_get_pad_crop() > v4: > - fix merge conflict due to rebase on top of media-tree/master > - __tvp5150_get_pad_crop(): cosmetic alignment fixes > > drivers/media/i2c/tvp5150.c | 130 ++++++++++++++++++++++++++---------- > 1 file changed, 96 insertions(+), 34 deletions(-) > > diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c > index 4e3228b2ccbc..9331609425bf 100644 > --- a/drivers/media/i2c/tvp5150.c > +++ b/drivers/media/i2c/tvp5150.c > @@ -19,6 +19,7 @@ > #include <media/v4l2-ctrls.h> > #include <media/v4l2-fwnode.h> > #include <media/v4l2-mc.h> > +#include <media/v4l2-rect.h> > > #include "tvp5150_reg.h" > > @@ -997,20 +998,48 @@ static void tvp5150_set_default(v4l2_std_id std, struct v4l2_rect *crop) > crop->height = TVP5150_V_MAX_OTHERS; > } > > +static struct v4l2_rect * > +__tvp5150_get_pad_crop(struct tvp5150 *decoder, > + struct v4l2_subdev_pad_config *cfg, unsigned int pad, > + enum v4l2_subdev_format_whence which) > +{ > + switch (which) { > + case V4L2_SUBDEV_FORMAT_TRY: > +#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) > + return v4l2_subdev_get_try_crop(&decoder->sd, cfg, pad); > +#else > + return ERR_PTR(-ENOTTY); > +#endif > + case V4L2_SUBDEV_FORMAT_ACTIVE: > + return &decoder->rect; > + default: > + return NULL; Do you need this default case? Can you return -EINVAL so that... > + } > +} > + > static int tvp5150_fill_fmt(struct v4l2_subdev *sd, > struct v4l2_subdev_pad_config *cfg, > struct v4l2_subdev_format *format) > { > struct v4l2_mbus_framefmt *f; > + struct v4l2_rect *__crop; > struct tvp5150 *decoder = to_tvp5150(sd); > > if (!format || (format->pad != TVP5150_PAD_VID_OUT)) > return -EINVAL; > > f = &format->format; > + __crop = __tvp5150_get_pad_crop(decoder, cfg, format->pad, > + format->which); > + if (IS_ERR_OR_NULL(__crop)) { ... here you just need to check if (IS_ERR()) and return it? > + if (!__crop) > + return -EINVAL; > + else > + return PTR_ERR(__crop); > + } > > - f->width = decoder->rect.width; > - f->height = decoder->rect.height / 2; > + f->width = __crop->width; > + f->height = __crop->height / 2; > > f->code = TVP5150_MBUS_FMT; > f->field = TVP5150_FIELD; > @@ -1021,17 +1050,51 @@ static int tvp5150_fill_fmt(struct v4l2_subdev *sd, > return 0; > } > > +unsigned int tvp5150_get_hmax(struct v4l2_subdev *sd) > +{ > + struct tvp5150 *decoder = to_tvp5150(sd); > + v4l2_std_id std; > + > + /* Calculate height based on current standard */ > + if (decoder->norm == V4L2_STD_ALL) > + std = tvp5150_read_std(sd); > + else > + std = decoder->norm; > + > + return (std & V4L2_STD_525_60) ? > + TVP5150_V_MAX_525_60 : TVP5150_V_MAX_OTHERS; > +} > + > +static inline void > +__tvp5150_set_selection(struct v4l2_subdev *sd, struct v4l2_rect rect) > +{ > + struct tvp5150 *decoder = to_tvp5150(sd); > + unsigned int hmax = tvp5150_get_hmax(sd); > + > + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); > + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, > + rect.top + rect.height - hmax); > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, > + rect.left >> TVP5150_CROP_SHIFT); > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, > + rect.left | (1 << TVP5150_CROP_SHIFT)); > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, > + (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> > + TVP5150_CROP_SHIFT); > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, > + rect.left + rect.width - TVP5150_MAX_CROP_LEFT); > +} > + > static int tvp5150_set_selection(struct v4l2_subdev *sd, > struct v4l2_subdev_pad_config *cfg, > struct v4l2_subdev_selection *sel) > { > struct tvp5150 *decoder = to_tvp5150(sd); > struct v4l2_rect rect = sel->r; > - v4l2_std_id std; > - int hmax; > + struct v4l2_rect *__crop; > + unsigned int hmax; > > - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || > - sel->target != V4L2_SEL_TGT_CROP) > + if (sel->target != V4L2_SEL_TGT_CROP) > return -EINVAL; > > dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n", > @@ -1040,17 +1103,7 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, > /* tvp5150 has some special limits */ > rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT); > rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP); > - > - /* Calculate height based on current standard */ > - if (decoder->norm == V4L2_STD_ALL) > - std = tvp5150_read_std(sd); > - else > - std = decoder->norm; > - > - if (std & V4L2_STD_525_60) > - hmax = TVP5150_V_MAX_525_60; > - else > - hmax = TVP5150_V_MAX_OTHERS; > + hmax = tvp5150_get_hmax(sd); > > /* > * alignments: > @@ -1063,20 +1116,23 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, > hmax - TVP5150_MAX_CROP_TOP - rect.top, > hmax - rect.top, 0, 0); > > - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); > - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, > - rect.top + rect.height - hmax); > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, > - rect.left >> TVP5150_CROP_SHIFT); > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, > - rect.left | (1 << TVP5150_CROP_SHIFT)); > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, > - (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> > - TVP5150_CROP_SHIFT); > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, > - rect.left + rect.width - TVP5150_MAX_CROP_LEFT); > + __crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, sel->which); > + if (IS_ERR_OR_NULL(__crop)) { > + if (!__crop) > + return -EINVAL; > + else > + return PTR_ERR(__crop); here too > + } > + > + /* > + * Update output image size if the selection (crop) rectangle size or > + * position has been modified. > + */ > + if (!v4l2_rect_equal(&rect, __crop)) > + if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) Can this be a single condition? Or maybe you could check if the rects are equal and this is a TRY and return here. > + __tvp5150_set_selection(sd, rect); > > - decoder->rect = rect; > + *__crop = rect; > > return 0; > } > @@ -1086,11 +1142,9 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, > struct v4l2_subdev_selection *sel) > { > struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd); > + struct v4l2_rect *__crop; > v4l2_std_id std; > > - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) > - return -EINVAL; > - > switch (sel->target) { > case V4L2_SEL_TGT_CROP_BOUNDS: > sel->r.left = 0; > @@ -1108,7 +1162,15 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, > sel->r.height = TVP5150_V_MAX_OTHERS; > return 0; > case V4L2_SEL_TGT_CROP: > - sel->r = decoder->rect; > + __crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, > + sel->which); > + if (IS_ERR_OR_NULL(__crop)) { > + if (!__crop) > + return -EINVAL; > + else > + return PTR_ERR(__crop); > + } > + sel->r = *__crop; > return 0; > default: > return -EINVAL; > -- > 2.20.1 >
Em Mon, 15 Apr 2019 14:44:07 +0200 Marco Felsch <m.felsch@pengutronix.de> escreveu: > Since commit 10d5509c8d50 ("[media] v4l2: remove g/s_crop from video ops") > the 'which' field for set/get_selection must be FORMAT_ACTIVE. There is > no way to try different selections. The patch adds a helper function to > select the correct selection memory space (sub-device file handle or > driver state) which will be set/returned. > > The TVP5150 AVID will be updated if the 'which' field is FORMAT_ACTIVE > and the requested selection rectangle differs from the already set one. > > Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> > --- > Changelog: > > v5: > - handle stub for v4l2_subdev_get_try_crop() internal since commit > ("media: v4l2-subdev: add stubs for v4l2_subdev_get_try_*") > isn't anymore part of this series. > - add error handling of __tvp5150_get_pad_crop() > v4: > - fix merge conflict due to rebase on top of media-tree/master > - __tvp5150_get_pad_crop(): cosmetic alignment fixes > > drivers/media/i2c/tvp5150.c | 130 ++++++++++++++++++++++++++---------- > 1 file changed, 96 insertions(+), 34 deletions(-) > > diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c > index 4e3228b2ccbc..9331609425bf 100644 > --- a/drivers/media/i2c/tvp5150.c > +++ b/drivers/media/i2c/tvp5150.c > @@ -19,6 +19,7 @@ > #include <media/v4l2-ctrls.h> > #include <media/v4l2-fwnode.h> > #include <media/v4l2-mc.h> > +#include <media/v4l2-rect.h> > > #include "tvp5150_reg.h" > > @@ -997,20 +998,48 @@ static void tvp5150_set_default(v4l2_std_id std, struct v4l2_rect *crop) > crop->height = TVP5150_V_MAX_OTHERS; > } > > +static struct v4l2_rect * > +__tvp5150_get_pad_crop(struct tvp5150 *decoder, > + struct v4l2_subdev_pad_config *cfg, unsigned int pad, > + enum v4l2_subdev_format_whence which) > +{ > + switch (which) { > + case V4L2_SUBDEV_FORMAT_TRY: > +#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) > + return v4l2_subdev_get_try_crop(&decoder->sd, cfg, pad); > +#else > + return ERR_PTR(-ENOTTY); > +#endif > + case V4L2_SUBDEV_FORMAT_ACTIVE: > + return &decoder->rect; > + default: > + return NULL; > + } Same comments as Jacopo: use return ERR_PTR(-EINVAL) instead... > +} > + > static int tvp5150_fill_fmt(struct v4l2_subdev *sd, > struct v4l2_subdev_pad_config *cfg, > struct v4l2_subdev_format *format) > { > struct v4l2_mbus_framefmt *f; > + struct v4l2_rect *__crop; > struct tvp5150 *decoder = to_tvp5150(sd); > > if (!format || (format->pad != TVP5150_PAD_VID_OUT)) > return -EINVAL; > > f = &format->format; > + __crop = __tvp5150_get_pad_crop(decoder, cfg, format->pad, > + format->which); > + if (IS_ERR_OR_NULL(__crop)) { > + if (!__crop) > + return -EINVAL; > + else > + return PTR_ERR(__crop); And here, return PTR_ERR directly. Same at the similar case below. > + } > > - f->width = decoder->rect.width; > - f->height = decoder->rect.height / 2; > + f->width = __crop->width; > + f->height = __crop->height / 2; > > f->code = TVP5150_MBUS_FMT; > f->field = TVP5150_FIELD; > @@ -1021,17 +1050,51 @@ static int tvp5150_fill_fmt(struct v4l2_subdev *sd, > return 0; > } > > +unsigned int tvp5150_get_hmax(struct v4l2_subdev *sd) > +{ > + struct tvp5150 *decoder = to_tvp5150(sd); > + v4l2_std_id std; > + > + /* Calculate height based on current standard */ > + if (decoder->norm == V4L2_STD_ALL) > + std = tvp5150_read_std(sd); > + else > + std = decoder->norm; > + > + return (std & V4L2_STD_525_60) ? > + TVP5150_V_MAX_525_60 : TVP5150_V_MAX_OTHERS; > +} > + > +static inline void > +__tvp5150_set_selection(struct v4l2_subdev *sd, struct v4l2_rect rect) > +{ > + struct tvp5150 *decoder = to_tvp5150(sd); > + unsigned int hmax = tvp5150_get_hmax(sd); > + > + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); > + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, > + rect.top + rect.height - hmax); > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, > + rect.left >> TVP5150_CROP_SHIFT); > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, > + rect.left | (1 << TVP5150_CROP_SHIFT)); > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, > + (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> > + TVP5150_CROP_SHIFT); > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, > + rect.left + rect.width - TVP5150_MAX_CROP_LEFT); > +} > + > static int tvp5150_set_selection(struct v4l2_subdev *sd, > struct v4l2_subdev_pad_config *cfg, > struct v4l2_subdev_selection *sel) > { > struct tvp5150 *decoder = to_tvp5150(sd); > struct v4l2_rect rect = sel->r; > - v4l2_std_id std; > - int hmax; > + struct v4l2_rect *__crop; > + unsigned int hmax; > > - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || > - sel->target != V4L2_SEL_TGT_CROP) > + if (sel->target != V4L2_SEL_TGT_CROP) > return -EINVAL; > > dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n", > @@ -1040,17 +1103,7 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, > /* tvp5150 has some special limits */ > rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT); > rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP); > - > - /* Calculate height based on current standard */ > - if (decoder->norm == V4L2_STD_ALL) > - std = tvp5150_read_std(sd); > - else > - std = decoder->norm; > - > - if (std & V4L2_STD_525_60) > - hmax = TVP5150_V_MAX_525_60; > - else > - hmax = TVP5150_V_MAX_OTHERS; > + hmax = tvp5150_get_hmax(sd); > > /* > * alignments: > @@ -1063,20 +1116,23 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, > hmax - TVP5150_MAX_CROP_TOP - rect.top, > hmax - rect.top, 0, 0); > > - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); > - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, > - rect.top + rect.height - hmax); > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, > - rect.left >> TVP5150_CROP_SHIFT); > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, > - rect.left | (1 << TVP5150_CROP_SHIFT)); > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, > - (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> > - TVP5150_CROP_SHIFT); > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, > - rect.left + rect.width - TVP5150_MAX_CROP_LEFT); > + __crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, sel->which); > + if (IS_ERR_OR_NULL(__crop)) { > + if (!__crop) > + return -EINVAL; > + else > + return PTR_ERR(__crop); > + } > + > + /* > + * Update output image size if the selection (crop) rectangle size or > + * position has been modified. > + */ > + if (!v4l2_rect_equal(&rect, __crop)) > + if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) > + __tvp5150_set_selection(sd, rect); > > - decoder->rect = rect; > + *__crop = rect; > > return 0; > } > @@ -1086,11 +1142,9 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, > struct v4l2_subdev_selection *sel) > { > struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd); > + struct v4l2_rect *__crop; > v4l2_std_id std; > > - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) > - return -EINVAL; > - > switch (sel->target) { > case V4L2_SEL_TGT_CROP_BOUNDS: > sel->r.left = 0; > @@ -1108,7 +1162,15 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, > sel->r.height = TVP5150_V_MAX_OTHERS; > return 0; > case V4L2_SEL_TGT_CROP: > - sel->r = decoder->rect; > + __crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, > + sel->which); > + if (IS_ERR_OR_NULL(__crop)) { > + if (!__crop) > + return -EINVAL; > + else > + return PTR_ERR(__crop); > + } > + sel->r = *__crop; > return 0; > default: > return -EINVAL; Thanks, Mauro
Hi Jacopo, On 19-05-06 15:36, Jacopo Mondi wrote: > Hi Marco, Sorry for the long time absence of this topic... > On Mon, Apr 15, 2019 at 02:44:07PM +0200, Marco Felsch wrote: > > Since commit 10d5509c8d50 ("[media] v4l2: remove g/s_crop from video ops") > > the 'which' field for set/get_selection must be FORMAT_ACTIVE. There is > > no way to try different selections. The patch adds a helper function to > > select the correct selection memory space (sub-device file handle or > > driver state) which will be set/returned. > > > > The TVP5150 AVID will be updated if the 'which' field is FORMAT_ACTIVE > > and the requested selection rectangle differs from the already set one. > > > > Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> > > --- > > Changelog: > > > > v5: > > - handle stub for v4l2_subdev_get_try_crop() internal since commit > > ("media: v4l2-subdev: add stubs for v4l2_subdev_get_try_*") > > isn't anymore part of this series. > > - add error handling of __tvp5150_get_pad_crop() > > v4: > > - fix merge conflict due to rebase on top of media-tree/master > > - __tvp5150_get_pad_crop(): cosmetic alignment fixes > > > > drivers/media/i2c/tvp5150.c | 130 ++++++++++++++++++++++++++---------- > > 1 file changed, 96 insertions(+), 34 deletions(-) > > > > diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c > > index 4e3228b2ccbc..9331609425bf 100644 > > --- a/drivers/media/i2c/tvp5150.c > > +++ b/drivers/media/i2c/tvp5150.c > > @@ -19,6 +19,7 @@ > > #include <media/v4l2-ctrls.h> > > #include <media/v4l2-fwnode.h> > > #include <media/v4l2-mc.h> > > +#include <media/v4l2-rect.h> > > > > #include "tvp5150_reg.h" > > > > @@ -997,20 +998,48 @@ static void tvp5150_set_default(v4l2_std_id std, struct v4l2_rect *crop) > > crop->height = TVP5150_V_MAX_OTHERS; > > } > > > > +static struct v4l2_rect * > > +__tvp5150_get_pad_crop(struct tvp5150 *decoder, > > + struct v4l2_subdev_pad_config *cfg, unsigned int pad, > > + enum v4l2_subdev_format_whence which) > > +{ > > + switch (which) { > > + case V4L2_SUBDEV_FORMAT_TRY: > > +#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) > > + return v4l2_subdev_get_try_crop(&decoder->sd, cfg, pad); > > +#else > > + return ERR_PTR(-ENOTTY); > > +#endif > > + case V4L2_SUBDEV_FORMAT_ACTIVE: > > + return &decoder->rect; > > + default: > > + return NULL; > > Do you need this default case? Can you return -EINVAL so that... I will change that, thanks. > > > + } > > +} > > + > > static int tvp5150_fill_fmt(struct v4l2_subdev *sd, > > struct v4l2_subdev_pad_config *cfg, > > struct v4l2_subdev_format *format) > > { > > struct v4l2_mbus_framefmt *f; > > + struct v4l2_rect *__crop; > > struct tvp5150 *decoder = to_tvp5150(sd); > > > > if (!format || (format->pad != TVP5150_PAD_VID_OUT)) > > return -EINVAL; > > > > f = &format->format; > > + __crop = __tvp5150_get_pad_crop(decoder, cfg, format->pad, > > + format->which); > > + if (IS_ERR_OR_NULL(__crop)) { > > ... here you just need to check if (IS_ERR()) and return it? > > > + if (!__crop) > > + return -EINVAL; > > + else > > + return PTR_ERR(__crop); > > + } > > > > - f->width = decoder->rect.width; > > - f->height = decoder->rect.height / 2; > > + f->width = __crop->width; > > + f->height = __crop->height / 2; > > > > f->code = TVP5150_MBUS_FMT; > > f->field = TVP5150_FIELD; > > @@ -1021,17 +1050,51 @@ static int tvp5150_fill_fmt(struct v4l2_subdev *sd, > > return 0; > > } > > > > +unsigned int tvp5150_get_hmax(struct v4l2_subdev *sd) > > +{ > > + struct tvp5150 *decoder = to_tvp5150(sd); > > + v4l2_std_id std; > > + > > + /* Calculate height based on current standard */ > > + if (decoder->norm == V4L2_STD_ALL) > > + std = tvp5150_read_std(sd); > > + else > > + std = decoder->norm; > > + > > + return (std & V4L2_STD_525_60) ? > > + TVP5150_V_MAX_525_60 : TVP5150_V_MAX_OTHERS; > > +} > > + > > +static inline void > > +__tvp5150_set_selection(struct v4l2_subdev *sd, struct v4l2_rect rect) > > +{ > > + struct tvp5150 *decoder = to_tvp5150(sd); > > + unsigned int hmax = tvp5150_get_hmax(sd); > > + > > + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); > > + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, > > + rect.top + rect.height - hmax); > > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, > > + rect.left >> TVP5150_CROP_SHIFT); > > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, > > + rect.left | (1 << TVP5150_CROP_SHIFT)); > > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, > > + (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> > > + TVP5150_CROP_SHIFT); > > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, > > + rect.left + rect.width - TVP5150_MAX_CROP_LEFT); > > +} > > + > > static int tvp5150_set_selection(struct v4l2_subdev *sd, > > struct v4l2_subdev_pad_config *cfg, > > struct v4l2_subdev_selection *sel) > > { > > struct tvp5150 *decoder = to_tvp5150(sd); > > struct v4l2_rect rect = sel->r; > > - v4l2_std_id std; > > - int hmax; > > + struct v4l2_rect *__crop; > > + unsigned int hmax; > > > > - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || > > - sel->target != V4L2_SEL_TGT_CROP) > > + if (sel->target != V4L2_SEL_TGT_CROP) > > return -EINVAL; > > > > dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n", > > @@ -1040,17 +1103,7 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, > > /* tvp5150 has some special limits */ > > rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT); > > rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP); > > - > > - /* Calculate height based on current standard */ > > - if (decoder->norm == V4L2_STD_ALL) > > - std = tvp5150_read_std(sd); > > - else > > - std = decoder->norm; > > - > > - if (std & V4L2_STD_525_60) > > - hmax = TVP5150_V_MAX_525_60; > > - else > > - hmax = TVP5150_V_MAX_OTHERS; > > + hmax = tvp5150_get_hmax(sd); > > > > /* > > * alignments: > > @@ -1063,20 +1116,23 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, > > hmax - TVP5150_MAX_CROP_TOP - rect.top, > > hmax - rect.top, 0, 0); > > > > - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); > > - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, > > - rect.top + rect.height - hmax); > > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, > > - rect.left >> TVP5150_CROP_SHIFT); > > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, > > - rect.left | (1 << TVP5150_CROP_SHIFT)); > > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, > > - (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> > > - TVP5150_CROP_SHIFT); > > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, > > - rect.left + rect.width - TVP5150_MAX_CROP_LEFT); > > + __crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, sel->which); > > + if (IS_ERR_OR_NULL(__crop)) { > > + if (!__crop) > > + return -EINVAL; > > + else > > + return PTR_ERR(__crop); > > here too Simplified both thanks. > > > + } > > + > > + /* > > + * Update output image size if the selection (crop) rectangle size or > > + * position has been modified. > > + */ > > + if (!v4l2_rect_equal(&rect, __crop)) > > + if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) > > Can this be a single condition? > Or maybe you could check if the rects are equal and this is a TRY and > return here. I squashed it into a single condition because your second approach won't cover the case if it is TRY and the rect changed. In that case the rect would be applied to the hw. > > > + __tvp5150_set_selection(sd, rect); > > > > - decoder->rect = rect; > > + *__crop = rect; > > > > return 0; > > } > > @@ -1086,11 +1142,9 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, > > struct v4l2_subdev_selection *sel) > > { > > struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd); > > + struct v4l2_rect *__crop; > > v4l2_std_id std; > > > > - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) > > - return -EINVAL; > > - > > switch (sel->target) { > > case V4L2_SEL_TGT_CROP_BOUNDS: > > sel->r.left = 0; > > @@ -1108,7 +1162,15 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, > > sel->r.height = TVP5150_V_MAX_OTHERS; > > return 0; > > case V4L2_SEL_TGT_CROP: > > - sel->r = decoder->rect; > > + __crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, > > + sel->which); > > + if (IS_ERR_OR_NULL(__crop)) { > > + if (!__crop) > > + return -EINVAL; > > + else > > + return PTR_ERR(__crop); > > + } This one as well. Thanks for the review. Regards, Marco > > + sel->r = *__crop; > > return 0; > > default: > > return -EINVAL; > > -- > > 2.20.1 > >
Hi Mauro, On 19-05-14 15:48, Mauro Carvalho Chehab wrote: > Em Mon, 15 Apr 2019 14:44:07 +0200 > Marco Felsch <m.felsch@pengutronix.de> escreveu: > > > Since commit 10d5509c8d50 ("[media] v4l2: remove g/s_crop from video ops") > > the 'which' field for set/get_selection must be FORMAT_ACTIVE. There is > > no way to try different selections. The patch adds a helper function to > > select the correct selection memory space (sub-device file handle or > > driver state) which will be set/returned. > > > > The TVP5150 AVID will be updated if the 'which' field is FORMAT_ACTIVE > > and the requested selection rectangle differs from the already set one. > > > > Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> > > --- > > Changelog: > > > > v5: > > - handle stub for v4l2_subdev_get_try_crop() internal since commit > > ("media: v4l2-subdev: add stubs for v4l2_subdev_get_try_*") > > isn't anymore part of this series. > > - add error handling of __tvp5150_get_pad_crop() > > v4: > > - fix merge conflict due to rebase on top of media-tree/master > > - __tvp5150_get_pad_crop(): cosmetic alignment fixes > > > > drivers/media/i2c/tvp5150.c | 130 ++++++++++++++++++++++++++---------- > > 1 file changed, 96 insertions(+), 34 deletions(-) > > > > diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c > > index 4e3228b2ccbc..9331609425bf 100644 > > --- a/drivers/media/i2c/tvp5150.c > > +++ b/drivers/media/i2c/tvp5150.c > > @@ -19,6 +19,7 @@ > > #include <media/v4l2-ctrls.h> > > #include <media/v4l2-fwnode.h> > > #include <media/v4l2-mc.h> > > +#include <media/v4l2-rect.h> > > > > #include "tvp5150_reg.h" > > > > @@ -997,20 +998,48 @@ static void tvp5150_set_default(v4l2_std_id std, struct v4l2_rect *crop) > > crop->height = TVP5150_V_MAX_OTHERS; > > } > > > > +static struct v4l2_rect * > > +__tvp5150_get_pad_crop(struct tvp5150 *decoder, > > + struct v4l2_subdev_pad_config *cfg, unsigned int pad, > > + enum v4l2_subdev_format_whence which) > > +{ > > + switch (which) { > > + case V4L2_SUBDEV_FORMAT_TRY: > > +#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) > > + return v4l2_subdev_get_try_crop(&decoder->sd, cfg, pad); > > +#else > > + return ERR_PTR(-ENOTTY); > > +#endif > > + case V4L2_SUBDEV_FORMAT_ACTIVE: > > + return &decoder->rect; > > + default: > > + return NULL; > > + } > > Same comments as Jacopo: use return ERR_PTR(-EINVAL) instead... I applied all comments from Jacopo. Thanks for the review. Regards, Marco > > > +} > > + > > static int tvp5150_fill_fmt(struct v4l2_subdev *sd, > > struct v4l2_subdev_pad_config *cfg, > > struct v4l2_subdev_format *format) > > { > > struct v4l2_mbus_framefmt *f; > > + struct v4l2_rect *__crop; > > struct tvp5150 *decoder = to_tvp5150(sd); > > > > if (!format || (format->pad != TVP5150_PAD_VID_OUT)) > > return -EINVAL; > > > > f = &format->format; > > + __crop = __tvp5150_get_pad_crop(decoder, cfg, format->pad, > > + format->which); > > + if (IS_ERR_OR_NULL(__crop)) { > > + if (!__crop) > > + return -EINVAL; > > + else > > + return PTR_ERR(__crop); > > And here, return PTR_ERR directly. Same at the similar case below. > > > + } > > > > - f->width = decoder->rect.width; > > - f->height = decoder->rect.height / 2; > > + f->width = __crop->width; > > + f->height = __crop->height / 2; > > > > f->code = TVP5150_MBUS_FMT; > > f->field = TVP5150_FIELD; > > @@ -1021,17 +1050,51 @@ static int tvp5150_fill_fmt(struct v4l2_subdev *sd, > > return 0; > > } > > > > +unsigned int tvp5150_get_hmax(struct v4l2_subdev *sd) > > +{ > > + struct tvp5150 *decoder = to_tvp5150(sd); > > + v4l2_std_id std; > > + > > + /* Calculate height based on current standard */ > > + if (decoder->norm == V4L2_STD_ALL) > > + std = tvp5150_read_std(sd); > > + else > > + std = decoder->norm; > > + > > + return (std & V4L2_STD_525_60) ? > > + TVP5150_V_MAX_525_60 : TVP5150_V_MAX_OTHERS; > > +} > > + > > +static inline void > > +__tvp5150_set_selection(struct v4l2_subdev *sd, struct v4l2_rect rect) > > +{ > > + struct tvp5150 *decoder = to_tvp5150(sd); > > + unsigned int hmax = tvp5150_get_hmax(sd); > > + > > + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); > > + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, > > + rect.top + rect.height - hmax); > > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, > > + rect.left >> TVP5150_CROP_SHIFT); > > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, > > + rect.left | (1 << TVP5150_CROP_SHIFT)); > > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, > > + (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> > > + TVP5150_CROP_SHIFT); > > + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, > > + rect.left + rect.width - TVP5150_MAX_CROP_LEFT); > > +} > > + > > static int tvp5150_set_selection(struct v4l2_subdev *sd, > > struct v4l2_subdev_pad_config *cfg, > > struct v4l2_subdev_selection *sel) > > { > > struct tvp5150 *decoder = to_tvp5150(sd); > > struct v4l2_rect rect = sel->r; > > - v4l2_std_id std; > > - int hmax; > > + struct v4l2_rect *__crop; > > + unsigned int hmax; > > > > - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || > > - sel->target != V4L2_SEL_TGT_CROP) > > + if (sel->target != V4L2_SEL_TGT_CROP) > > return -EINVAL; > > > > dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n", > > @@ -1040,17 +1103,7 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, > > /* tvp5150 has some special limits */ > > rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT); > > rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP); > > - > > - /* Calculate height based on current standard */ > > - if (decoder->norm == V4L2_STD_ALL) > > - std = tvp5150_read_std(sd); > > - else > > - std = decoder->norm; > > - > > - if (std & V4L2_STD_525_60) > > - hmax = TVP5150_V_MAX_525_60; > > - else > > - hmax = TVP5150_V_MAX_OTHERS; > > + hmax = tvp5150_get_hmax(sd); > > > > /* > > * alignments: > > @@ -1063,20 +1116,23 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, > > hmax - TVP5150_MAX_CROP_TOP - rect.top, > > hmax - rect.top, 0, 0); > > > > - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); > > - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, > > - rect.top + rect.height - hmax); > > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, > > - rect.left >> TVP5150_CROP_SHIFT); > > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, > > - rect.left | (1 << TVP5150_CROP_SHIFT)); > > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, > > - (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> > > - TVP5150_CROP_SHIFT); > > - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, > > - rect.left + rect.width - TVP5150_MAX_CROP_LEFT); > > + __crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, sel->which); > > + if (IS_ERR_OR_NULL(__crop)) { > > + if (!__crop) > > + return -EINVAL; > > + else > > + return PTR_ERR(__crop); > > + } > > + > > + /* > > + * Update output image size if the selection (crop) rectangle size or > > + * position has been modified. > > + */ > > + if (!v4l2_rect_equal(&rect, __crop)) > > + if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) > > + __tvp5150_set_selection(sd, rect); > > > > - decoder->rect = rect; > > + *__crop = rect; > > > > return 0; > > } > > @@ -1086,11 +1142,9 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, > > struct v4l2_subdev_selection *sel) > > { > > struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd); > > + struct v4l2_rect *__crop; > > v4l2_std_id std; > > > > - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) > > - return -EINVAL; > > - > > switch (sel->target) { > > case V4L2_SEL_TGT_CROP_BOUNDS: > > sel->r.left = 0; > > @@ -1108,7 +1162,15 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, > > sel->r.height = TVP5150_V_MAX_OTHERS; > > return 0; > > case V4L2_SEL_TGT_CROP: > > - sel->r = decoder->rect; > > + __crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, > > + sel->which); > > + if (IS_ERR_OR_NULL(__crop)) { > > + if (!__crop) > > + return -EINVAL; > > + else > > + return PTR_ERR(__crop); > > + } > > + sel->r = *__crop; > > return 0; > > default: > > return -EINVAL; > > > > Thanks, > Mauro >
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c index 4e3228b2ccbc..9331609425bf 100644 --- a/drivers/media/i2c/tvp5150.c +++ b/drivers/media/i2c/tvp5150.c @@ -19,6 +19,7 @@ #include <media/v4l2-ctrls.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-mc.h> +#include <media/v4l2-rect.h> #include "tvp5150_reg.h" @@ -997,20 +998,48 @@ static void tvp5150_set_default(v4l2_std_id std, struct v4l2_rect *crop) crop->height = TVP5150_V_MAX_OTHERS; } +static struct v4l2_rect * +__tvp5150_get_pad_crop(struct tvp5150 *decoder, + struct v4l2_subdev_pad_config *cfg, unsigned int pad, + enum v4l2_subdev_format_whence which) +{ + switch (which) { + case V4L2_SUBDEV_FORMAT_TRY: +#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) + return v4l2_subdev_get_try_crop(&decoder->sd, cfg, pad); +#else + return ERR_PTR(-ENOTTY); +#endif + case V4L2_SUBDEV_FORMAT_ACTIVE: + return &decoder->rect; + default: + return NULL; + } +} + static int tvp5150_fill_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *format) { struct v4l2_mbus_framefmt *f; + struct v4l2_rect *__crop; struct tvp5150 *decoder = to_tvp5150(sd); if (!format || (format->pad != TVP5150_PAD_VID_OUT)) return -EINVAL; f = &format->format; + __crop = __tvp5150_get_pad_crop(decoder, cfg, format->pad, + format->which); + if (IS_ERR_OR_NULL(__crop)) { + if (!__crop) + return -EINVAL; + else + return PTR_ERR(__crop); + } - f->width = decoder->rect.width; - f->height = decoder->rect.height / 2; + f->width = __crop->width; + f->height = __crop->height / 2; f->code = TVP5150_MBUS_FMT; f->field = TVP5150_FIELD; @@ -1021,17 +1050,51 @@ static int tvp5150_fill_fmt(struct v4l2_subdev *sd, return 0; } +unsigned int tvp5150_get_hmax(struct v4l2_subdev *sd) +{ + struct tvp5150 *decoder = to_tvp5150(sd); + v4l2_std_id std; + + /* Calculate height based on current standard */ + if (decoder->norm == V4L2_STD_ALL) + std = tvp5150_read_std(sd); + else + std = decoder->norm; + + return (std & V4L2_STD_525_60) ? + TVP5150_V_MAX_525_60 : TVP5150_V_MAX_OTHERS; +} + +static inline void +__tvp5150_set_selection(struct v4l2_subdev *sd, struct v4l2_rect rect) +{ + struct tvp5150 *decoder = to_tvp5150(sd); + unsigned int hmax = tvp5150_get_hmax(sd); + + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, + rect.top + rect.height - hmax); + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, + rect.left >> TVP5150_CROP_SHIFT); + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, + rect.left | (1 << TVP5150_CROP_SHIFT)); + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, + (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> + TVP5150_CROP_SHIFT); + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, + rect.left + rect.width - TVP5150_MAX_CROP_LEFT); +} + static int tvp5150_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_selection *sel) { struct tvp5150 *decoder = to_tvp5150(sd); struct v4l2_rect rect = sel->r; - v4l2_std_id std; - int hmax; + struct v4l2_rect *__crop; + unsigned int hmax; - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || - sel->target != V4L2_SEL_TGT_CROP) + if (sel->target != V4L2_SEL_TGT_CROP) return -EINVAL; dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n", @@ -1040,17 +1103,7 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, /* tvp5150 has some special limits */ rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT); rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP); - - /* Calculate height based on current standard */ - if (decoder->norm == V4L2_STD_ALL) - std = tvp5150_read_std(sd); - else - std = decoder->norm; - - if (std & V4L2_STD_525_60) - hmax = TVP5150_V_MAX_525_60; - else - hmax = TVP5150_V_MAX_OTHERS; + hmax = tvp5150_get_hmax(sd); /* * alignments: @@ -1063,20 +1116,23 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, hmax - TVP5150_MAX_CROP_TOP - rect.top, hmax - rect.top, 0, 0); - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, - rect.top + rect.height - hmax); - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, - rect.left >> TVP5150_CROP_SHIFT); - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, - rect.left | (1 << TVP5150_CROP_SHIFT)); - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, - (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> - TVP5150_CROP_SHIFT); - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, - rect.left + rect.width - TVP5150_MAX_CROP_LEFT); + __crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, sel->which); + if (IS_ERR_OR_NULL(__crop)) { + if (!__crop) + return -EINVAL; + else + return PTR_ERR(__crop); + } + + /* + * Update output image size if the selection (crop) rectangle size or + * position has been modified. + */ + if (!v4l2_rect_equal(&rect, __crop)) + if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) + __tvp5150_set_selection(sd, rect); - decoder->rect = rect; + *__crop = rect; return 0; } @@ -1086,11 +1142,9 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_selection *sel) { struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd); + struct v4l2_rect *__crop; v4l2_std_id std; - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - switch (sel->target) { case V4L2_SEL_TGT_CROP_BOUNDS: sel->r.left = 0; @@ -1108,7 +1162,15 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, sel->r.height = TVP5150_V_MAX_OTHERS; return 0; case V4L2_SEL_TGT_CROP: - sel->r = decoder->rect; + __crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, + sel->which); + if (IS_ERR_OR_NULL(__crop)) { + if (!__crop) + return -EINVAL; + else + return PTR_ERR(__crop); + } + sel->r = *__crop; return 0; default: return -EINVAL;
Since commit 10d5509c8d50 ("[media] v4l2: remove g/s_crop from video ops") the 'which' field for set/get_selection must be FORMAT_ACTIVE. There is no way to try different selections. The patch adds a helper function to select the correct selection memory space (sub-device file handle or driver state) which will be set/returned. The TVP5150 AVID will be updated if the 'which' field is FORMAT_ACTIVE and the requested selection rectangle differs from the already set one. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> --- Changelog: v5: - handle stub for v4l2_subdev_get_try_crop() internal since commit ("media: v4l2-subdev: add stubs for v4l2_subdev_get_try_*") isn't anymore part of this series. - add error handling of __tvp5150_get_pad_crop() v4: - fix merge conflict due to rebase on top of media-tree/master - __tvp5150_get_pad_crop(): cosmetic alignment fixes drivers/media/i2c/tvp5150.c | 130 ++++++++++++++++++++++++++---------- 1 file changed, 96 insertions(+), 34 deletions(-)