From: William Towle <william.towle@xxxxxxxxxxxxxxx>
Add logic such that the "default-input" property becomes unnecessary
for chips that only have one suitable input (ADV7611 by design, and
ADV7612 due to commit 7111cddd518f ("[media] media: adv7604: reduce
support to first (digital) input").
Additionally, Ian's documentation in commit bf9c82278c34 ("[media]
media: adv7604: ability to read default input port from DT") states
that the "default-input" property should reside directly in the node
for adv7612. Hence, also adjust the parsing to make the implementation
consistent with this.
Signed-off-by: William Towle <william.towle@xxxxxxxxxxxxxxx>
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@xxxxxxxxx>
---
drivers/media/i2c/adv7604.c | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index 41a1bfc..d722c16 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -2788,7 +2788,7 @@ static int adv76xx_parse_dt(struct adv76xx_state *state)
struct device_node *np;
unsigned int flags;
int ret;
- u32 v;
+ u32 v = -1;
np = state->i2c_clients[ADV76XX_PAGE_IO]->dev.of_node;
@@ -2810,6 +2810,22 @@ static int adv76xx_parse_dt(struct adv76xx_state *state)
of_node_put(endpoint);
+ if (of_property_read_u32(np, "default-input", &v)) {
+ /* not specified ... can we choose automatically? */
+ switch (state->info->type) {
+ case ADV7611:
+ v = 0;
+ break;
+ case ADV7612:
+ if (state->info->max_port == ADV76XX_PAD_HDMI_PORT_A)
+ v = 0;
+ /* else is unhobbled, leave unspecified */
+ default:
+ break;
+ }
+ }
+ state->pdata.default_input = v;
+
flags = bus_cfg.bus.parallel.flags;
if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
--
2.7.4
