[media] media: adv7604: ability to read default input port from DT
Adds support to the adv7604 driver for specifying the default input
port in the Device tree. If no value is provided, the driver will be
unable to select an input without help from userspace.
Tested-by: William Towle <william.towle@codethink.co.uk>
Signed-off-by: Ian Molton <ian.molton@codethink.co.uk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index c8fefea..21b549a 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -2772,6 +2772,7 @@
struct device_node *endpoint;
struct device_node *np;
unsigned int flags;
+ u32 v;
np = state->i2c_clients[ADV76XX_PAGE_IO]->dev.of_node;
@@ -2781,6 +2782,12 @@
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);
flags = bus_cfg.bus.parallel.flags;
@@ -2819,7 +2826,6 @@
/* Hardcode the remaining platform data fields. */
state->pdata.disable_pwrdnb = 0;
state->pdata.disable_cable_det_rst = 0;
- state->pdata.default_input = -1;
state->pdata.blank_data = 1;
state->pdata.alt_data_sat = 1;
state->pdata.op_format_mode_sel = ADV7604_OP_FORMAT_MODE0;