| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | NXP PCA9685 16-channel 12-bit PWM LED controller |
| 2 | ================================================ |
| 3 | |
| 4 | Required properties: |
| 5 | - compatible: "nxp,pca9685-pwm" |
| 6 | - #pwm-cells: Should be 2. See pwm.yaml in this directory for a description of |
| 7 | the cells format. |
| 8 | The index 16 is the ALLCALL channel, that sets all PWM channels at the same |
| 9 | time. |
| 10 | |
| 11 | Optional properties: |
| 12 | - invert (bool): boolean to enable inverted logic |
| 13 | - open-drain (bool): boolean to configure outputs with open-drain structure; |
| 14 | if omitted use totem-pole structure |
| 15 | |
| 16 | Example: |
| 17 | |
| 18 | For LEDs that are directly connected to the PCA, the following setting is |
| 19 | applicable: |
| 20 | |
| 21 | pca: pca@41 { |
| 22 | compatible = "nxp,pca9685-pwm"; |
| 23 | #pwm-cells = <2>; |
| 24 | reg = <0x41>; |
| 25 | invert; |
| 26 | open-drain; |
| 27 | }; |