Commit 6519c3d7 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Mauro Carvalho Chehab
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[media] adv7604: Don't ignore pad number in subdev DV timings pad operations 



The dv_timings_cap() and enum_dv_timings() pad operations take a pad
number as an input argument and return the DV timings capabilities and
list of supported DV timings for that pad.

Commit bd3e275f ("[media] media: i2c: adv7604: Use v4l2-dv-timings
helpers") broke this as it started ignoring the pad number, always
returning the information associated with the currently selected input.
Fix it.

Fixes: bd3e275f ("[media] media: i2c: adv7604: Use v4l2-dv-timings helpers")

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org>      # for v4.6
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 1ca830b1

drivers/media/i2c/adv7604.c

+35 −11
Original line number Diff line number Diff line
@@ -779,11 +779,31 @@ static const struct v4l2_dv_timings_cap adv76xx_timings_cap_digital = { 
			V4L2_DV_BT_CAP_CUSTOM)

};



static inline const struct v4l2_dv_timings_cap *

adv76xx_get_dv_timings_cap(struct v4l2_subdev *sd)

/*

 * Return the DV timings capabilities for the requested sink pad. As a special

 * case, pad value -1 returns the capabilities for the currently selected input.

 */

static const struct v4l2_dv_timings_cap *

adv76xx_get_dv_timings_cap(struct v4l2_subdev *sd, int pad)

{

	return is_digital_input(sd) ? &adv76xx_timings_cap_digital :

				      &adv7604_timings_cap_analog;

	if (pad == -1) {

		struct adv76xx_state *state = to_state(sd);



		pad = state->selected_input;

	}



	switch (pad) {

	case ADV76XX_PAD_HDMI_PORT_A:

	case ADV7604_PAD_HDMI_PORT_B:

	case ADV7604_PAD_HDMI_PORT_C:

	case ADV7604_PAD_HDMI_PORT_D:

		return &adv76xx_timings_cap_digital;



	case ADV7604_PAD_VGA_RGB:

	case ADV7604_PAD_VGA_COMP:

	default:

		return &adv7604_timings_cap_analog;

	}

}
@@ -1329,7 +1349,7 @@ static int stdi2dv_timings(struct v4l2_subdev *sd, 
		const struct v4l2_bt_timings *bt = &v4l2_dv_timings_presets[i].bt;



		if (!v4l2_valid_dv_timings(&v4l2_dv_timings_presets[i],

					   adv76xx_get_dv_timings_cap(sd),

					   adv76xx_get_dv_timings_cap(sd, -1),

					   adv76xx_check_dv_timings, NULL))

			continue;

		if (vtotal(bt) != stdi->lcf + 1)
@@ -1430,18 +1450,22 @@ static int adv76xx_enum_dv_timings(struct v4l2_subdev *sd, 
		return -EINVAL;



	return v4l2_enum_dv_timings_cap(timings,

		adv76xx_get_dv_timings_cap(sd), adv76xx_check_dv_timings, NULL);

		adv76xx_get_dv_timings_cap(sd, timings->pad),

		adv76xx_check_dv_timings, NULL);

}



static int adv76xx_dv_timings_cap(struct v4l2_subdev *sd,

			struct v4l2_dv_timings_cap *cap)

{

	struct adv76xx_state *state = to_state(sd);

	unsigned int pad = cap->pad;



	if (cap->pad >= state->source_pad)

		return -EINVAL;



	*cap = *adv76xx_get_dv_timings_cap(sd);

	*cap = *adv76xx_get_dv_timings_cap(sd, pad);

	cap->pad = pad;



	return 0;

}
@@ -1450,7 +1474,7 @@ static int adv76xx_dv_timings_cap(struct v4l2_subdev *sd, 
static void adv76xx_fill_optional_dv_timings_fields(struct v4l2_subdev *sd,

		struct v4l2_dv_timings *timings)

{

	v4l2_find_dv_timings_cap(timings, adv76xx_get_dv_timings_cap(sd),

	v4l2_find_dv_timings_cap(timings, adv76xx_get_dv_timings_cap(sd, -1),

				 is_digital_input(sd) ? 250000 : 1000000,

				 adv76xx_check_dv_timings, NULL);

}
@@ -1620,7 +1644,7 @@ static int adv76xx_s_dv_timings(struct v4l2_subdev *sd, 


	bt = &timings->bt;



	if (!v4l2_valid_dv_timings(timings, adv76xx_get_dv_timings_cap(sd),

	if (!v4l2_valid_dv_timings(timings, adv76xx_get_dv_timings_cap(sd, -1),

				   adv76xx_check_dv_timings, NULL))

		return -ERANGE;

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