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feat(ledc): Add sleep retention support for C5/C61

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Song Ruo Jing
2024-10-18 17:32:18 +08:00
parent 4a90deb227
commit 7a516554a6
9 changed files with 309 additions and 3 deletions
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4
components/soc/esp32c6/ledc_periph.c
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@@ -32,9 +32,11 @@ const ledc_signal_conn_t ledc_periph_signal[1] = {
*
* Note 1: Gamma feature is hard to do hardware retention, will consider to use software to do the backup and restore.
* We won't start a fade automatically after wake-up.
* Instead, we will only start a PWM with a constant duty cycle, the same value as before entering the sleep.
* Instead, we will only start a PWM with a fixed duty cycle, the same value as before entering the sleep.
*
* Note 2: For timer/channel registers to get synced, update bits need to be set
*
* Note 3: Retention backup/restore does not rely on LEDC function clock enabled
*/
#define LEDC_COMMON_RETENTION_REGS_CNT 5
#define LEDC_COMMON_RETENTION_REGS_BASE (DR_REG_LEDC_BASE + 0xc8)