diff options
Diffstat (limited to 'board/cherry/board.c')
| -rw-r--r-- | board/cherry/board.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/board/cherry/board.c b/board/cherry/board.c index 565c68e976..53e31e5640 100644 --- a/board/cherry/board.c +++ b/board/cherry/board.c @@ -159,6 +159,42 @@ static void board_update_motion_sensor_config(void) } } +/* PWM */ + +/* + * PWM channels. Must be in the exactly same order as in enum pwm_channel. + * There total three 16 bits clock prescaler registers for all pwm channels, + * so use the same frequency and prescaler register setting is required if + * number of pwm channel greater than three. + */ +const struct pwm_t pwm_channels[] = { + [PWM_CH_LED1] = { + .channel = 0, + .flags = PWM_CONFIG_DSLEEP | PWM_CONFIG_ACTIVE_LOW, + .freq_hz = 324, /* maximum supported frequency */ + .pcfsr_sel = PWM_PRESCALER_C4, + }, + [PWM_CH_LED2] = { + .channel = 1, + .flags = PWM_CONFIG_DSLEEP | PWM_CONFIG_ACTIVE_LOW, + .freq_hz = 324, /* maximum supported frequency */ + .pcfsr_sel = PWM_PRESCALER_C4, + }, + [PWM_CH_LED3] = { + .channel = 2, + .flags = PWM_CONFIG_DSLEEP | PWM_CONFIG_ACTIVE_LOW, + .freq_hz = 324, /* maximum supported frequency */ + .pcfsr_sel = PWM_PRESCALER_C4, + }, + [PWM_CH_KBLIGHT] = { + .channel = 3, + .flags = PWM_CONFIG_DSLEEP, + .freq_hz = 10000, /* SYV226 supports 10~100kHz */ + .pcfsr_sel = PWM_PRESCALER_C6, + }, +}; +BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT); + /* Initialize board. */ static void board_init(void) { |