From e10e40625ac5bed6d1d5a51a10e9ff840a102172 Mon Sep 17 00:00:00 2001 From: Jigarkumar Zala Date: Fri, 14 Jun 2019 15:21:12 -0700 Subject: dt-bindings: Move camera devicetree bindins from video Move camera devicetree bindings from video to camera project. Change-Id: Iacfbd2a1a248ebae54ae3f42d785a454320a5f49 --- bindings/msm-cam-vfe.txt | 146 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 bindings/msm-cam-vfe.txt (limited to 'bindings/msm-cam-vfe.txt') diff --git a/bindings/msm-cam-vfe.txt b/bindings/msm-cam-vfe.txt new file mode 100644 index 0000000..576cce5 --- /dev/null +++ b/bindings/msm-cam-vfe.txt @@ -0,0 +1,146 @@ +* Qualcomm Technologies, Inc. MSM Camera VFE + +Camera VFE device provides the definitions for enabling +the VFE hardware. It also provides the functions for the client +to control the VFE hardware. + +======================= +Required Node Structure +======================= +The VFE device is described in one level of the device node. + +====================================== +First Level Node - CAM VFE device +====================================== +Required properties: +- compatible + Usage: required + Value type: + Definition: Should specify the compatibility string for matching the + driver. e.g. "qcom,vfe480", "qcom,vfe175", "qcom,vfe170", "qcom,vfe175_130", + "qcom,vfe-lite480", "qcom,vfe-lite175", "qcom,vfe-lite175_130", "qcom,vfe-lite170". + +- cell-index + Usage: required + Value type: + Definition: Should specify the hardware index id. + +- reg-names + Usage: required + Value type: + Definition: Should specify the name of the register block. + +- reg + Usage: required + Value type: + Definition: Register values. + +- interrupt-names + Usage: Required + Value type: + Definition: Name of the interrupt. + +- interrupts + Usage: Required + Value type: + Definition: Interrupt associated with VFE HW. + +- regulator-names + Usage: required + Value type: + Definition: Name of the regulator resources for VFE HW. + +- xxxx-supply + Usage: required + Value type: + Definition: Regulator reference corresponding to the names listed in + "regulator-names". + +- clock-names + Usage: required + Value type: + Definition: List of clock names required for VFE HW. + +- clocks + Usage: required + Value type: + Definition: List of clocks used for VFE HW. + +- clock-rates + Usage: required + Value type: + Definition: List of clocks rates. + +- src-clock-name + Usage: required + Value type: + Definition: Source clock name. + +Optional properties: +- clock-names-option + Usage: optional + Value type: + Definition: Optional clock names. + +- clocks-option + Usage: required if clock-names-option defined + Value type: + Definition: List of optinal clocks used for VFE HW. + +- clock-rates-option + Usage: required if clock-names-option defined + Value type: + Definition: List of clocks rates for optional clocks. + +- clock-control-debugfs + Usage: optional + Value type: + Definition: Enable/Disable clk rate control. + +- qcom,cam-cx-ipeak: + Usage: optional + Value type: + phandle - phandle of CX Ipeak device node + bit - Every bit corresponds to a client of CX Ipeak + Definition: CX Ipeak is a mitigation scheme which throttles camera frequency + if all the clients are running at their respective threshold + frequencies to limit CX peak current. + driver in the relevant register. + +Example: + qcom,vfe0@acaf000 { + cell-index = <0>; + compatible = "qcom,vfe480"; + reg-names = "ife"; + reg = <0xacaf000 0x4000>; + interrupts = <0 465 0>; + interrupt-names = "ife"; + vdd-names = "camss-vdd", "ife0-vdd"; + camss-vdd-supply = <&titan_top_gdsc>; + ife0-vdd-supply = <&ife_0_gdsc>; + clock-names = "soc_ahb_clk", + "cpas_ahb_clk", + "slow_ahb_clk_src", + "ife_clk", + "ife_clk_src", + "ife_csid_clk", + "ife_csid_clk_src", + "camnoc_axi_clk", + "ife_axi_clk", + clocks = <&clock_camcc CAM_CC_SOC_AHB_CLK>, + <&clock_camcc CAM_CC_CPAS_AHB_CLK>, + <&clock_camcc CAM_CC_SLOW_AHB_CLK_SRC>, + <&clock_camcc CAM_CC_IFE_0_CLK>, + <&clock_camcc CAM_CC_IFE_0_CLK_SRC>, + <&clock_camcc CAM_CC_IFE_0_CSID_CLK>, + <&clock_camcc CAM_CC_IFE_0_CSID_CLK_SRC>, + <&clock_camcc CAM_CC_CAMNOC_AXI_CLK>, + <&clock_camcc CAM_CC_IFE_0_AXI_CLK>, + clock-rates = <0 0 80000000 0 320000000 0 384000000 0 0 0>; + src-clock-name = "ife_clk_src"; + clock-names-option = "ife_dsp_clk"; + clocks-option = <&clock_camcc CAM_CC_IFE_0_DSP_CLK>; + clock-rates-option = <600000000>; + qcom,cam-cx-ipeak = <&cx_ipeak_lm 2>; + status = "ok"; + }; -- cgit v1.2.3