| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Each HSI port is supposed to have one child node, which |
| 2 | symbols the remote device connected to the HSI port. The |
| 3 | following properties are standardized for HSI clients: |
| 4 | |
| 5 | Required HSI configuration properties: |
| 6 | |
| 7 | - hsi-channel-ids: A list of channel ids |
| 8 | |
| 9 | - hsi-rx-mode: Receiver Bit transmission mode ("stream" or "frame") |
| 10 | - hsi-tx-mode: Transmitter Bit transmission mode ("stream" or "frame") |
| 11 | - hsi-mode: May be used instead hsi-rx-mode and hsi-tx-mode if |
| 12 | the transmission mode is the same for receiver and |
| 13 | transmitter |
| 14 | - hsi-speed-kbps: Max bit transmission speed in kbit/s |
| 15 | - hsi-flow: RX flow type ("synchronized" or "pipeline") |
| 16 | - hsi-arb-mode: Arbitration mode for TX frame ("round-robin", "priority") |
| 17 | |
| 18 | Optional HSI configuration properties: |
| 19 | |
| 20 | - hsi-channel-names: A list with one name per channel specified in the |
| 21 | hsi-channel-ids property |
| 22 | |
| 23 | |
| 24 | Device Tree node example for an HSI client: |
| 25 | |
| 26 | hsi-controller { |
| 27 | hsi-port { |
| 28 | modem: hsi-client { |
| 29 | compatible = "nokia,n900-modem"; |
| 30 | |
| 31 | hsi-channel-ids = <0>, <1>, <2>, <3>; |
| 32 | hsi-channel-names = "mcsaab-control", |
| 33 | "speech-control", |
| 34 | "speech-data", |
| 35 | "mcsaab-data"; |
| 36 | hsi-speed-kbps = <55000>; |
| 37 | hsi-mode = "frame"; |
| 38 | hsi-flow = "synchronized"; |
| 39 | hsi-arb-mode = "round-robin"; |
| 40 | |
| 41 | /* more client specific properties */ |
| 42 | }; |
| 43 | }; |
| 44 | }; |