From: William Towle <william.to...@codethink.co.uk>
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 7111cddd "[media] media: adv7604: reduce support
to first (digital) input").
Additionally, Ian's documentation in commit bf9c8227 ("[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.to...@codethink.co.uk>
Signed-off-by: Ulrich Hecht <ulrich.hecht+rene...@gmail.com>
---
drivers/media/i2c/adv7604.c | 24 +++++++++++++++++-------
1 file changed, 17 insertions(+), 7 deletions(-)
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index f8dd750..2097c48 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -2799,7 +2799,7 @@ static int adv76xx_parse_dt(struct adv76xx_state *state)
struct device_node *endpoint;
struct device_node *np;
unsigned int flags;
- u32 v;
+ u32 v = -1;
np = state->i2c_clients[ADV76XX_PAGE_IO]->dev.of_node;
@@ -2809,14 +2809,24 @@ static int adv76xx_parse_dt(struct adv76xx_state *state)
return -EINVAL;
v4l2_of_parse_endpoint(endpoint, &bus_cfg);
-
- if (!of_property_read_u32(endpoint, "default-input", &v))
- state->pdata.default_input = v;
- else
- state->pdata.default_input = -1;
-
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)
--
2.6.4
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