From b440b7337352ef3c8265c8a89c0d43091cfd9008 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Thu, 28 Jun 2018 12:20:40 -0400 Subject: [PATCH] media: tvp5150: trigger autodetection on subdev open to reset cropping If cropping isn't set explicitly by userspace, reset it to the maximum possible rectangle in subdevice open if a standard change is detected. Signed-off-by: Philipp Zabel [m.felsch@pengutronix.de: move code from internal_ops.open() to pad_ops.init_cfg()] [m.felsch@pengutronix.de: make use of tvp5150_set_default() helper] Signed-off-by: Marco Felsch Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/tvp5150.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c index 5687ffb9d8eb5..d84dac3b37d49 100644 --- a/drivers/media/i2c/tvp5150.c +++ b/drivers/media/i2c/tvp5150.c @@ -60,6 +60,7 @@ struct tvp5150 { struct regmap *regmap; v4l2_std_id norm; /* Current set standard */ + v4l2_std_id detected_norm; u32 input; u32 output; int enable; @@ -1001,6 +1002,27 @@ static int tvp5150_g_mbus_config(struct v4l2_subdev *sd, /**************************************************************************** V4L2 subdev pad ops ****************************************************************************/ +static int tvp5150_init_cfg(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg) +{ + struct tvp5150 *decoder = to_tvp5150(sd); + v4l2_std_id std; + + /* + * Reset selection to maximum on subdev_open() if autodetection is on + * and a standard change is detected. + */ + if (decoder->norm == V4L2_STD_ALL) { + std = tvp5150_read_std(sd); + if (std != decoder->detected_norm) { + decoder->detected_norm = std; + tvp5150_set_default(std, &decoder->rect); + } + } + + return 0; +} + static int tvp5150_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_mbus_code_enum *code) @@ -1275,6 +1297,7 @@ static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = { }; static const struct v4l2_subdev_pad_ops tvp5150_pad_ops = { + .init_cfg = tvp5150_init_cfg, .enum_mbus_code = tvp5150_enum_mbus_code, .enum_frame_size = tvp5150_enum_frame_size, .set_fmt = tvp5150_fill_fmt, @@ -1608,6 +1631,7 @@ static int tvp5150_probe(struct i2c_client *c, return res; core->norm = V4L2_STD_ALL; /* Default is autodetect */ + core->detected_norm = V4L2_STD_UNKNOWN; core->input = TVP5150_COMPOSITE1; core->enable = true; -- 2.30.2