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raspberry-pi/4: support 4lane csi #1530

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raspberry-pi/4: support 4lane csi #1530

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63 changes: 50 additions & 13 deletions raspberry-pi/4/tc358743.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,16 @@ in
running ustreamer (which starts webservice providing a camera stream):
''${pkgs.ustreamer}/bin/ustreamer --persistent --dv-timings
'';
lanes = lib.mkOption {
type = lib.types.enum [
2
4
];
default = 2;
description = ''
Number of CSI lanes available
'';
};
};
};

Expand Down Expand Up @@ -74,17 +84,31 @@ in
fragment@2 {
target = <0x03>;

__overlay__ {
data-lanes = <0x01 0x02>;
};
${
if cfg.lanes == 2 then
''
__overlay__ {
data-lanes = <0x01 0x02>;
};
''
else
""
}
};

fragment@3 {
target = <0x03>;

__dormant__ {
data-lanes = <0x01 0x02 0x03 0x04>;
};
${
if cfg.lanes == 4 then
''
__overlay__ {
data-lanes = <0x01 0x02 0x03 0x04>;
};
''
else
""
}
};

fragment@4 {
Expand Down Expand Up @@ -120,21 +144,34 @@ in
fragment@7 {
target = <0x02>;

__overlay__ {
data-lanes = <0x01 0x02>;
};
${
if cfg.lanes == 2 then
''
__overlay__ {
data-lanes = <0x01 0x02>;
};
''
else
""
}
};

fragment@8 {
target = <0x02>;

__dormant__ {
data-lanes = <0x01 0x02 0x03 0x04>;
};
${
if cfg.lanes == 4 then
''
__overlay__ {
data-lanes = <0x01 0x02 0x03 0x04>;
};
''
else
""
}
};

__overrides__ {
4lane = "\0\0\0\0-2+3-7+8";
link-frequency = [00 00 00 03 6c 69 6e 6b 2d 66 72 65 71 75 65 6e 63 69 65 73 23 30 00];
};

Expand Down