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media: dt-bindings: media: Binding document for Qualcomm Camera subsystem driver

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Add DT binding document for Qualcomm Camera subsystem driver.

CC: Rob Herring <robh+dt@kernel.org>
CC: devicetree@vger.kernel.org
Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Todor Tomov 2017-08-08 09:29:59 -04:00 committed by Mauro Carvalho Chehab
parent d1b3437ed7
commit a379e3f61b
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Documentation/devicetree/bindings/media/qcom,camss.txt Normal file
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Qualcomm Camera Subsystem
* Properties
- compatible:
Usage: required
Value type: <stringlist>
Definition: Should contain:
- "qcom,msm8916-camss"
- reg:
Usage: required
Value type: <prop-encoded-array>
Definition: Register ranges as listed in the reg-names property.
- reg-names:
Usage: required
Value type: <stringlist>
Definition: Should contain the following entries:
- "csiphy0"
- "csiphy0_clk_mux"
- "csiphy1"
- "csiphy1_clk_mux"
- "csid0"
- "csid1"
- "ispif"
- "csi_clk_mux"
- "vfe0"
- interrupts:
Usage: required
Value type: <prop-encoded-array>
Definition: Interrupts as listed in the interrupt-names property.
- interrupt-names:
Usage: required
Value type: <stringlist>
Definition: Should contain the following entries:
- "csiphy0"
- "csiphy1"
- "csid0"
- "csid1"
- "ispif"
- "vfe0"
- power-domains:
Usage: required
Value type: <prop-encoded-array>
Definition: A phandle and power domain specifier pairs to the
power domain which is responsible for collapsing
and restoring power to the peripheral.
- clocks:
Usage: required
Value type: <prop-encoded-array>
Definition: A list of phandle and clock specifier pairs as listed
in clock-names property.
- clock-names:
Usage: required
Value type: <stringlist>
Definition: Should contain the following entries:
- "camss_top_ahb"
- "ispif_ahb"
- "csiphy0_timer"
- "csiphy1_timer"
- "csi0_ahb"
- "csi0"
- "csi0_phy"
- "csi0_pix"
- "csi0_rdi"
- "csi1_ahb"
- "csi1"
- "csi1_phy"
- "csi1_pix"
- "csi1_rdi"
- "camss_ahb"
- "camss_vfe_vfe"
- "camss_csi_vfe"
- "iface"
- "bus"
- vdda-supply:
Usage: required
Value type: <phandle>
Definition: A phandle to voltage supply for CSI2.
- iommus:
Usage: required
Value type: <prop-encoded-array>
Definition: A list of phandle and IOMMU specifier pairs.
* Nodes
- ports:
Usage: required
Definition: As described in video-interfaces.txt in same directory.
Properties:
- reg:
Usage: required
Value type: <u32>
Definition: Selects CSI2 PHY interface - PHY0 or PHY1.
Endpoint node properties:
- clock-lanes:
Usage: required
Value type: <u32>
Definition: The physical clock lane index. The value
must always be <1> as the physical clock
lane is lane 1.
- data-lanes:
Usage: required
Value type: <prop-encoded-array>
Definition: An array of physical data lanes indexes.
Position of an entry determines the logical
lane number, while the value of an entry
indicates physical lane index. Lane swapping
is supported.
* An Example
camss: camss@1b00000 {
compatible = "qcom,msm8916-camss";
reg = <0x1b0ac00 0x200>,
<0x1b00030 0x4>,
<0x1b0b000 0x200>,
<0x1b00038 0x4>,
<0x1b08000 0x100>,
<0x1b08400 0x100>,
<0x1b0a000 0x500>,
<0x1b00020 0x10>,
<0x1b10000 0x1000>;
reg-names = "csiphy0",
"csiphy0_clk_mux",
"csiphy1",
"csiphy1_clk_mux",
"csid0",
"csid1",
"ispif",
"csi_clk_mux",
"vfe0";
interrupts = <GIC_SPI 78 0>,
<GIC_SPI 79 0>,
<GIC_SPI 51 0>,
<GIC_SPI 52 0>,
<GIC_SPI 55 0>,
<GIC_SPI 57 0>;
interrupt-names = "csiphy0",
"csiphy1",
"csid0",
"csid1",
"ispif",
"vfe0";
power-domains = <&gcc VFE_GDSC>;
clocks = <&gcc GCC_CAMSS_TOP_AHB_CLK>,
<&gcc GCC_CAMSS_ISPIF_AHB_CLK>,
<&gcc GCC_CAMSS_CSI0PHYTIMER_CLK>,
<&gcc GCC_CAMSS_CSI1PHYTIMER_CLK>,
<&gcc GCC_CAMSS_CSI0_AHB_CLK>,
<&gcc GCC_CAMSS_CSI0_CLK>,
<&gcc GCC_CAMSS_CSI0PHY_CLK>,
<&gcc GCC_CAMSS_CSI0PIX_CLK>,
<&gcc GCC_CAMSS_CSI0RDI_CLK>,
<&gcc GCC_CAMSS_CSI1_AHB_CLK>,
<&gcc GCC_CAMSS_CSI1_CLK>,
<&gcc GCC_CAMSS_CSI1PHY_CLK>,
<&gcc GCC_CAMSS_CSI1PIX_CLK>,
<&gcc GCC_CAMSS_CSI1RDI_CLK>,
<&gcc GCC_CAMSS_AHB_CLK>,
<&gcc GCC_CAMSS_VFE0_CLK>,
<&gcc GCC_CAMSS_CSI_VFE0_CLK>,
<&gcc GCC_CAMSS_VFE_AHB_CLK>,
<&gcc GCC_CAMSS_VFE_AXI_CLK>;
clock-names = "camss_top_ahb",
"ispif_ahb",
"csiphy0_timer",
"csiphy1_timer",
"csi0_ahb",
"csi0",
"csi0_phy",
"csi0_pix",
"csi0_rdi",
"csi1_ahb",
"csi1",
"csi1_phy",
"csi1_pix",
"csi1_rdi",
"camss_ahb",
"camss_vfe_vfe",
"camss_csi_vfe",
"iface",
"bus";
vdda-supply = <&pm8916_l2>;
iommus = <&apps_iommu 3>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
csiphy0_ep: endpoint {
clock-lanes = <1>;
data-lanes = <0 2>;
remote-endpoint = <&ov5645_ep>;
};
};
};
};