| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | PDC Global |
| 2 | ====================================== |
| 3 | |
| 4 | This binding describes a reset-controller found on PDC-Global (Power Domain |
| 5 | Controller) block for Qualcomm Technologies Inc SDM845 SoCs. |
| 6 | |
| 7 | Required properties: |
| 8 | - compatible: |
| 9 | Usage: required |
| 10 | Value type: <string> |
| 11 | Definition: must be: |
| 12 | "qcom,sdm845-pdc-global" |
| 13 | |
| 14 | - reg: |
| 15 | Usage: required |
| 16 | Value type: <prop-encoded-array> |
| 17 | Definition: must specify the base address and size of the register |
| 18 | space. |
| 19 | |
| 20 | - #reset-cells: |
| 21 | Usage: required |
| 22 | Value type: <uint> |
| 23 | Definition: must be 1; cell entry represents the reset index. |
| 24 | |
| 25 | Example: |
| 26 | |
| 27 | pdc_reset: reset-controller@b2e0000 { |
| 28 | compatible = "qcom,sdm845-pdc-global"; |
| 29 | reg = <0xb2e0000 0x20000>; |
| 30 | #reset-cells = <1>; |
| 31 | }; |
| 32 | |
| 33 | PDC reset clients |
| 34 | ====================================== |
| 35 | |
| 36 | Device nodes that need access to reset lines should |
| 37 | specify them as a reset phandle in their corresponding node as |
| 38 | specified in reset.txt. |
| 39 | |
| 40 | For a list of all valid reset indices see |
| 41 | <dt-bindings/reset/qcom,sdm845-pdc.h> |
| 42 | |
| 43 | Example: |
| 44 | |
| 45 | modem-pil@4080000 { |
| 46 | ... |
| 47 | |
| 48 | resets = <&pdc_reset PDC_MODEM_SYNC_RESET>; |
| 49 | reset-names = "pdc_reset"; |
| 50 | |
| 51 | ... |
| 52 | }; |