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media: dt-bindings: media: adv7604: Extend bindings to allow specifying slave map addresses 

The ADV7604 has thirteen 256-byte maps that can be accessed via the main
I2C ports. Each map has it own I2C address and acts as a standard slave
device on the I2C bus.

Extend the device tree node bindings to be able to override the default
addresses so that address conflicts with other devices on the same bus
may be resolved at the board description level.

[Kieran: Re-adapted for mainline]

Signed-off-by: Jean-Michel Hautbois <jean-michel.hautbois@vodalys.com>
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Jean-Michel Hautbois 2018-02-13 12:48:53 -05:00 committed by Mauro Carvalho Chehab
parent 67537fe960
commit 9feb786876
1 changed files with 16 additions and 2 deletions
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18
Documentation/devicetree/bindings/media/i2c/adv7604.txt
View File

@ -13,7 +13,11 @@ Required Properties:
- "adi,adv7611" for the ADV7611
- "adi,adv7612" for the ADV7612
- reg: I2C slave address
- reg: I2C slave addresses
The ADV76xx has up to thirteen 256-byte maps that can be accessed via the
main I2C ports. Each map has it own I2C address and acts as a standard
slave device on the I2C bus. The main address is mandatory, others are
optional and revert to defaults if not specified.
- hpd-gpios: References to the GPIOs that control the HDMI hot-plug
detection pins, one per HDMI input. The active flag indicates the GPIO
@ -35,6 +39,11 @@ Optional Properties:
- reset-gpios: Reference to the GPIO connected to the device's reset pin.
- default-input: Select which input is selected after reset.
- reg-names : Names of maps with programmable addresses.
It can contain any map needing a non-default address.
Possible maps names are :
"main", "avlink", "cec", "infoframe", "esdp", "dpp", "afe",
"rep", "edid", "hdmi", "test", "cp", "vdp"
Optional Endpoint Properties:
@ -52,7 +61,12 @@ Example:
hdmi_receiver@4c {
compatible = "adi,adv7611";
reg = <0x4c>;
/*
* The edid page will be accessible @ 0x66 on the I2C bus. All
* other maps will retain their default addresses.
*/
reg = <0x4c>, <0x66>;
reg-names "main", "edid";
reset-gpios = <&ioexp 0 GPIO_ACTIVE_LOW>;
hpd-gpios = <&ioexp 2 GPIO_ACTIVE_HIGH>;