| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | OMAP 3 ISP Device Tree bindings |
| 2 | =============================== |
| 3 | |
| 4 | The DT definitions can be found in include/dt-bindings/media/omap3-isp.h. |
| 5 | |
| 6 | Required properties |
| 7 | =================== |
| 8 | |
| 9 | compatible : must contain "ti,omap3-isp" |
| 10 | |
| 11 | reg : the two registers sets (physical address and length) for the |
| 12 | ISP. The first set contains the core ISP registers up to |
| 13 | the end of the SBL block. The second set contains the |
| 14 | CSI PHYs and receivers registers. |
| 15 | interrupts : the ISP interrupt specifier |
| 16 | iommus : phandle and IOMMU specifier for the IOMMU that serves the ISP |
| 17 | syscon : the phandle and register offset to the Complex I/O or CSI-PHY |
| 18 | register |
| 19 | ti,phy-type : 0 -- OMAP3ISP_PHY_TYPE_COMPLEX_IO (e.g. 3430) |
| 20 | 1 -- OMAP3ISP_PHY_TYPE_CSIPHY (e.g. 3630) |
| 21 | #clock-cells : Must be 1 --- the ISP provides two external clocks, |
| 22 | cam_xclka and cam_xclkb, at indices 0 and 1, |
| 23 | respectively. Please find more information on common |
| 24 | clock bindings in ../clock/clock-bindings.txt. |
| 25 | |
| 26 | Port nodes (optional) |
| 27 | --------------------- |
| 28 | |
| 29 | More documentation on these bindings is available in |
| 30 | video-interfaces.txt in the same directory. |
| 31 | |
| 32 | reg : The interface: |
| 33 | 0 - parallel (CCDC) |
| 34 | 1 - CSIPHY1 -- CSI2C / CCP2B on 3630; |
| 35 | CSI1 -- CSIb on 3430 |
| 36 | 2 - CSIPHY2 -- CSI2A / CCP2B on 3630; |
| 37 | CSI2 -- CSIa on 3430 |
| 38 | |
| 39 | Optional properties |
| 40 | =================== |
| 41 | |
| 42 | vdd-csiphy1-supply : voltage supply of the CSI-2 PHY 1 |
| 43 | vdd-csiphy2-supply : voltage supply of the CSI-2 PHY 2 |
| 44 | |
| 45 | Endpoint nodes |
| 46 | -------------- |
| 47 | |
| 48 | lane-polarities : lane polarity (required on CSI-2) |
| 49 | 0 -- not inverted; 1 -- inverted |
| 50 | data-lanes : an array of data lanes from 1 to 3. The length can |
| 51 | be either 1 or 2. (required on CSI-2) |
| 52 | clock-lanes : the clock lane (from 1 to 3). (required on CSI-2) |
| 53 | |
| 54 | |
| 55 | Example |
| 56 | ======= |
| 57 | |
| 58 | isp@480bc000 { |
| 59 | compatible = "ti,omap3-isp"; |
| 60 | reg = <0x480bc000 0x12fc |
| 61 | 0x480bd800 0x0600>; |
| 62 | interrupts = <24>; |
| 63 | iommus = <&mmu_isp>; |
| 64 | syscon = <&scm_conf 0x2f0>; |
| 65 | ti,phy-type = <OMAP3ISP_PHY_TYPE_CSIPHY>; |
| 66 | #clock-cells = <1>; |
| 67 | ports { |
| 68 | #address-cells = <1>; |
| 69 | #size-cells = <0>; |
| 70 | }; |
| 71 | }; |