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Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0197-dt-bindings-Document-BCM283x-CSI2-CCP2-receiver.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0197-dt-bindings-Document-BCM283x-CSI2-CCP2-receiver.patch | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0197-dt-bindings-Document-BCM283x-CSI2-CCP2-receiver.patch b/target/linux/brcm2708/patches-4.19/950-0197-dt-bindings-Document-BCM283x-CSI2-CCP2-receiver.patch deleted file mode 100644 index 63d3b3dce9..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0197-dt-bindings-Document-BCM283x-CSI2-CCP2-receiver.patch +++ /dev/null @@ -1,103 +0,0 @@ -From 8299df54f2016290eed7a2bece3885aad36d13e2 Mon Sep 17 00:00:00 2001 -From: Dave Stevenson <dave.stevenson@raspberrypi.org> -Date: Wed, 31 Oct 2018 14:59:06 +0000 -Subject: [PATCH 197/806] dt-bindings: Document BCM283x CSI2/CCP2 receiver - -Document the DT bindings for the CSI2/CCP2 receiver peripheral -(known as Unicam) on BCM283x SoCs. - -Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> -Acked-by: Rob Herring <robh@kernel.org> ---- - .../bindings/media/bcm2835-unicam.txt | 85 +++++++++++++++++++ - 1 file changed, 85 insertions(+) - create mode 100644 Documentation/devicetree/bindings/media/bcm2835-unicam.txt - ---- /dev/null -+++ b/Documentation/devicetree/bindings/media/bcm2835-unicam.txt -@@ -0,0 +1,85 @@ -+Broadcom BCM283x Camera Interface (Unicam) -+------------------------------------------ -+ -+The Unicam block on BCM283x SoCs is the receiver for either -+CSI-2 or CCP2 data from image sensors or similar devices. -+ -+The main platform using this SoC is the Raspberry Pi family of boards. -+On the Pi the VideoCore firmware can also control this hardware block, -+and driving it from two different processors will cause issues. -+To avoid this, the firmware checks the device tree configuration -+during boot. If it finds device tree nodes called csi0 or csi1 then -+it will stop the firmware accessing the block, and it can then -+safely be used via the device tree binding. -+ -+Required properties: -+=================== -+- compatible : must be "brcm,bcm2835-unicam". -+- reg : physical base address and length of the register sets for the -+ device. -+- interrupts : should contain the IRQ line for this Unicam instance. -+- clocks : list of clock specifiers, corresponding to entries in -+ clock-names property. -+- clock-names : must contain an "lp" entry, matching entries in the -+ clocks property. -+ -+Unicam supports a single port node. It should contain one 'port' child node -+with child 'endpoint' node. Please refer to the bindings defined in -+Documentation/devicetree/bindings/media/video-interfaces.txt. -+ -+Within the endpoint node the "remote-endpoint" and "data-lanes" properties -+are mandatory. -+Data lane reordering is not supported so the data lanes must be in order, -+starting at 1. The number of data lanes should represent the number of -+usable lanes for the hardware block. That may be limited by either the SoC or -+how the platform presents the interface, and the lower value must be used. -+ -+Lane reordering is not supported on the clock lane either, so the optional -+property "clock-lane" will implicitly be <0>. -+Similarly lane inversion is not supported, therefore "lane-polarities" will -+implicitly be <0 0 0 0 0>. -+Neither of these values will be checked. -+ -+Example: -+ csi1: csi1@7e801000 { -+ compatible = "brcm,bcm2835-unicam"; -+ reg = <0x7e801000 0x800>, -+ <0x7e802004 0x4>; -+ interrupts = <2 7>; -+ clocks = <&clocks BCM2835_CLOCK_CAM1>; -+ clock-names = "lp"; -+ -+ port { -+ csi1_ep: endpoint { -+ remote-endpoint = <&tc358743_0>; -+ data-lanes = <1 2>; -+ }; -+ }; -+ }; -+ -+ i2c0: i2c@7e205000 { -+ tc358743: csi-hdmi-bridge@0f { -+ compatible = "toshiba,tc358743"; -+ reg = <0x0f>; -+ -+ clocks = <&tc358743_clk>; -+ clock-names = "refclk"; -+ -+ tc358743_clk: bridge-clk { -+ compatible = "fixed-clock"; -+ #clock-cells = <0>; -+ clock-frequency = <27000000>; -+ }; -+ -+ port { -+ tc358743_0: endpoint { -+ remote-endpoint = <&csi1_ep>; -+ clock-lanes = <0>; -+ data-lanes = <1 2>; -+ clock-noncontinuous; -+ link-frequencies = -+ /bits/ 64 <297000000>; -+ }; -+ }; -+ }; -+ }; |