From: Jean-Michel Hautbois <jean-michel.hautb...@vodalys.com>

This patch adds support for DT parsing of register maps adresses.
This allows multiple adv76xx devices on the same bus.

Signed-off-by: Jean-Michel Hautbois <jean-michel.hautb...@vodalys.com>
---
 .../devicetree/bindings/media/i2c/adv7604.txt      | 12 ++++
 drivers/media/i2c/adv7604.c                        | 71 ++++++++++++++++++----
 2 files changed, 71 insertions(+), 12 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/i2c/adv7604.txt 
b/Documentation/devicetree/bindings/media/i2c/adv7604.txt
index c27cede..33881fb 100644
--- a/Documentation/devicetree/bindings/media/i2c/adv7604.txt
+++ b/Documentation/devicetree/bindings/media/i2c/adv7604.txt
@@ -32,6 +32,18 @@ The digital output port node must contain at least one 
endpoint.
 Optional Properties:
 
   - reset-gpios: Reference to the GPIO connected to the device's reset pin.
+  - adv7604-page-avlink: Programmed address for avlink register map
+  - adv7604-page-cec: Programmed address for cec register map
+  - adv7604-page-infoframe: Programmed address for infoframe register map
+  - adv7604-page-esdp: Programmed address for esdp register map
+  - adv7604-page-dpp: Programmed address for dpp register map
+  - adv7604-page-afe: Programmed address for afe register map
+  - adv7604-page-rep: Programmed address for rep register map
+  - adv7604-page-edid: Programmed address for edid register map
+  - adv7604-page-hdmi: Programmed address for hdmi register map
+  - adv7604-page-test: Programmed address for test register map
+  - adv7604-page-cp: Programmed address for cp register map
+  - adv7604-page-vdp: Programmed address for vdp register map
 
 Optional Endpoint Properties:
 
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index d4fa213..89a7034 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -2718,18 +2718,65 @@ static int adv7604_parse_dt(struct adv7604_state *state)
        state->pdata.int1_config = ADV7604_INT1_CONFIG_DISABLED;
 
        /* Use the default I2C addresses. */
-       state->pdata.i2c_addresses[ADV7604_PAGE_AVLINK] = 0x42;
-       state->pdata.i2c_addresses[ADV7604_PAGE_CEC] = 0x40;
-       state->pdata.i2c_addresses[ADV7604_PAGE_INFOFRAME] = 0x3e;
-       state->pdata.i2c_addresses[ADV7604_PAGE_ESDP] = 0x38;
-       state->pdata.i2c_addresses[ADV7604_PAGE_DPP] = 0x3c;
-       state->pdata.i2c_addresses[ADV7604_PAGE_AFE] = 0x26;
-       state->pdata.i2c_addresses[ADV7604_PAGE_REP] = 0x32;
-       state->pdata.i2c_addresses[ADV7604_PAGE_EDID] = 0x36;
-       state->pdata.i2c_addresses[ADV7604_PAGE_HDMI] = 0x34;
-       state->pdata.i2c_addresses[ADV7604_PAGE_TEST] = 0x30;
-       state->pdata.i2c_addresses[ADV7604_PAGE_CP] = 0x22;
-       state->pdata.i2c_addresses[ADV7604_PAGE_VDP] = 0x24;
+       of_property_read_u32(np, "adv7604-page-avlink",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_AVLINK]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_AVLINK])
+               state->pdata.i2c_addresses[ADV7604_PAGE_AVLINK] = 0x42;
+
+       of_property_read_u32(np, "adv7604-page-cec",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_CEC]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_CEC])
+               state->pdata.i2c_addresses[ADV7604_PAGE_CEC] = 0x40;
+
+       of_property_read_u32(np, "adv7604-page-infoframe",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_INFOFRAME]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_INFOFRAME])
+               state->pdata.i2c_addresses[ADV7604_PAGE_INFOFRAME] = 0x3e;
+
+       of_property_read_u32(np, "adv7604-page-esdp",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_ESDP]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_ESDP])
+               state->pdata.i2c_addresses[ADV7604_PAGE_ESDP] = 0x38;
+
+       of_property_read_u32(np, "adv7604-page-dpp",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_DPP]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_DPP])
+               state->pdata.i2c_addresses[ADV7604_PAGE_DPP] = 0x3c;
+
+       of_property_read_u32(np, "adv7604-page-afe",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_AFE]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_AFE])
+               state->pdata.i2c_addresses[ADV7604_PAGE_AFE] = 0x26;
+
+       of_property_read_u32(np, "adv7604-page-rep",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_REP]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_REP])
+               state->pdata.i2c_addresses[ADV7604_PAGE_REP] = 0x32;
+
+       of_property_read_u32(np, "adv7604-page-edid",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_EDID]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_EDID])
+               state->pdata.i2c_addresses[ADV7604_PAGE_EDID] = 0x36;
+
+       of_property_read_u32(np, "adv7604-page-hdmi",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_HDMI]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_HDMI])
+               state->pdata.i2c_addresses[ADV7604_PAGE_HDMI] = 0x34;
+
+       of_property_read_u32(np, "adv7604-page-test",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_TEST]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_TEST])
+               state->pdata.i2c_addresses[ADV7604_PAGE_TEST] = 0x30;
+
+       of_property_read_u32(np, "adv7604-page-cp",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_CP]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_CP])
+               state->pdata.i2c_addresses[ADV7604_PAGE_CP] = 0x22;
+
+       of_property_read_u32(np, "adv7604-page-vdp",
+                       &state->pdata.i2c_addresses[ADV7604_PAGE_VDP]);
+       if (!state->pdata.i2c_addresses[ADV7604_PAGE_VDP])
+               state->pdata.i2c_addresses[ADV7604_PAGE_VDP] = 0x24;
 
        /* Hardcode the remaining platform data fields. */
        state->pdata.disable_pwrdnb = 0;
-- 
2.0.4

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