| Simon Glass | cce3aed | 2015-06-23 15:38:45 -0600 | [diff] [blame] | 1 | config LED |
| 2 | bool "Enable LED support" |
| 3 | depends on DM |
| 4 | help |
| 5 | Many boards have LEDs which can be used to signal status or alerts. |
| 6 | U-Boot provides a uclass API to implement this feature. LED drivers |
| 7 | can provide access to board-specific LEDs. Use of the device tree |
| 8 | for configuration is encouraged. |
| 9 | |
| 10 | config SPL_LED_SUPPORT |
| 11 | bool "Enable LED support in SPL" |
| 12 | depends on LED |
| 13 | help |
| 14 | The LED subsystem adds a small amount of overhead to the image. |
| 15 | If this is acceptable and you have a need to use LEDs in SPL, |
| 16 | enable this option. You will need to enable device tree in SPL |
| 17 | for this to work. |
| Simon Glass | 5a9390b | 2015-06-23 15:38:46 -0600 | [diff] [blame^] | 18 | |
| 19 | config LED_GPIO |
| 20 | bool "LED support for GPIO-connected LEDs" |
| 21 | depends on LED && DM_GPIO |
| 22 | help |
| 23 | Enable support for LEDs which are connected to GPIO lines. These |
| 24 | GPIOs may be on the SoC or some other device which provides GPIOs. |
| 25 | The GPIO driver must used driver model. LEDs are configured using |
| 26 | the device tree. |