diff options
Diffstat (limited to 'drivers/media/i2c/adv7842.c')
| -rw-r--r-- | drivers/media/i2c/adv7842.c | 44 |
1 files changed, 26 insertions, 18 deletions
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c index 0d554919cdd..75d26dfd093 100644 --- a/drivers/media/i2c/adv7842.c +++ b/drivers/media/i2c/adv7842.c @@ -1435,6 +1435,8 @@ static int adv7842_query_dv_timings(struct v4l2_subdev *sd, v4l2_dbg(1, debug, sd, "%s:\n", __func__); + memset(timings, 0, sizeof(struct v4l2_dv_timings)); + /* SDP block */ if (state->mode == ADV7842_MODE_SDP) return -ENODATA; @@ -1483,7 +1485,7 @@ static int adv7842_query_dv_timings(struct v4l2_subdev *sd, hdmi_read(sd, 0x2d)) / 2; bt->il_vsync = ((hdmi_read(sd, 0x30) & 0x1f) * 256 + hdmi_read(sd, 0x31)) / 2; - bt->vbackporch = ((hdmi_read(sd, 0x34) & 0x1f) * 256 + + bt->il_vbackporch = ((hdmi_read(sd, 0x34) & 0x1f) * 256 + hdmi_read(sd, 0x35)) / 2; } adv7842_fill_optional_dv_timings_fields(sd, timings); @@ -1875,12 +1877,12 @@ static int adv7842_s_routing(struct v4l2_subdev *sd, } static int adv7842_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned int index, - enum v4l2_mbus_pixelcode *code) + u32 *code) { if (index) return -EINVAL; /* Good enough for now */ - *code = V4L2_MBUS_FMT_FIXED; + *code = MEDIA_BUS_FMT_FIXED; return 0; } @@ -1891,7 +1893,7 @@ static int adv7842_g_mbus_fmt(struct v4l2_subdev *sd, fmt->width = state->timings.bt.width; fmt->height = state->timings.bt.height; - fmt->code = V4L2_MBUS_FMT_FIXED; + fmt->code = MEDIA_BUS_FMT_FIXED; fmt->field = V4L2_FIELD_NONE; if (state->mode == ADV7842_MODE_SDP) { @@ -2026,16 +2028,7 @@ static int adv7842_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) struct adv7842_state *state = to_state(sd); u8 *data = NULL; - if (edid->pad > ADV7842_EDID_PORT_VGA) - return -EINVAL; - if (edid->blocks == 0) - return -EINVAL; - if (edid->blocks > 2) - return -EINVAL; - if (edid->start_block > 1) - return -EINVAL; - if (edid->start_block == 1) - edid->blocks = 1; + memset(edid->reserved, 0, sizeof(edid->reserved)); switch (edid->pad) { case ADV7842_EDID_PORT_A: @@ -2050,12 +2043,23 @@ static int adv7842_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) default: return -EINVAL; } + + if (edid->start_block == 0 && edid->blocks == 0) { + edid->blocks = data ? 2 : 0; + return 0; + } + if (!data) return -ENODATA; - memcpy(edid->edid, - data + edid->start_block * 128, - edid->blocks * 128); + if (edid->start_block >= 2) + return -EINVAL; + + if (edid->start_block + edid->blocks > 2) + edid->blocks = 2 - edid->start_block; + + memcpy(edid->edid, data + edid->start_block * 128, edid->blocks * 128); + return 0; } @@ -2064,12 +2068,16 @@ static int adv7842_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *e) struct adv7842_state *state = to_state(sd); int err = 0; + memset(e->reserved, 0, sizeof(e->reserved)); + if (e->pad > ADV7842_EDID_PORT_VGA) return -EINVAL; if (e->start_block != 0) return -EINVAL; - if (e->blocks > 2) + if (e->blocks > 2) { + e->blocks = 2; return -E2BIG; + } /* todo, per edid */ state->aspect_ratio = v4l2_calc_aspect_ratio(e->edid[0x15], |