diff options
| author | Kieran Bingham <kieran.bingham@ideasonboard.com> | 2018-08-09 15:29:44 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-09-12 10:41:56 -0400 |
| commit | 0af04934be0046ec056074edfb176f42a21da6f0 (patch) | |
| tree | f0d6a27ddcf6c1436e058edbfa57103cdb498134 /Documentation | |
| parent | e2050f7c6f22d8dd3d81e84c5d39f11b5e68283d (diff) | |
media: dt-bindings: media: adv748x: Document re-mappable addresses
The ADV748x supports configurable slave addresses for its I2C pages.
Document the page names, and provide an example for setting each of the
pages explicitly.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/media/i2c/adv748x.txt | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/media/i2c/adv748x.txt b/Documentation/devicetree/bindings/media/i2c/adv748x.txt index 54d1d3bc1869..5dddc95f9cc4 100644 --- a/Documentation/devicetree/bindings/media/i2c/adv748x.txt +++ b/Documentation/devicetree/bindings/media/i2c/adv748x.txt @@ -10,7 +10,11 @@ Required Properties: - "adi,adv7481" for the ADV7481 - "adi,adv7482" for the ADV7482 - - reg: I2C slave address + - reg: I2C slave addresses + The ADV748x has up to twelve 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 remain at default values if not specified. Optional Properties: @@ -18,6 +22,11 @@ Optional Properties: "intrq3". All interrupts are optional. The "intrq3" interrupt is only available on the adv7481 - interrupts: Specify the interrupt lines for the ADV748x + - reg-names : Names of maps with programmable addresses. + It shall contain all maps needing a non-default address. + Possible map names are: + "main", "dpll", "cp", "hdmi", "edid", "repeater", + "infoframe", "cbus", "cec", "sdp", "txa", "txb" The device node must contain one 'port' child node per device input and output port, in accordance with the video interface bindings defined in @@ -47,7 +56,10 @@ Example: video-receiver@70 { compatible = "adi,adv7482"; - reg = <0x70>; + reg = <0x70 0x71 0x72 0x73 0x74 0x75 + 0x60 0x61 0x62 0x63 0x64 0x65>; + reg-names = "main", "dpll", "cp", "hdmi", "edid", "repeater", + "infoframe", "cbus", "cec", "sdp", "txa", "txb"; #address-cells = <1>; #size-cells = <0>; |