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rmt,gptimer: don't support rc_fast clock source for c6 and h2

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The RC_FAST clock source on ESP32C6 and ESP32H2 can't be calibrated.
Which makes it impossible to work stable for peripherals like timer, RMT
This commit is contained in:
morris
2022-09-13 15:54:05 +08:00
parent 7760053138
commit 5f550b2a13
8 changed files with 2 additions and 38 deletions
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13
components/driver/gptimer.c
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@@ -214,12 +214,6 @@ esp_err_t gptimer_del_timer(gptimer_handle_t timer)
int timer_id = timer->timer_id;
ESP_LOGD(TAG, "del timer (%d,%d)", group_id, timer_id);
timer_hal_deinit(&timer->hal);
// [refactor-todo]: replace the following code with clk_tree_acquire/release, and call them in gptimer_enable/disable
#if SOC_TIMER_GROUP_SUPPORT_RC_FAST
if (timer->clk_src == GPTIMER_CLK_SRC_RC_FAST) {
periph_rtc_dig_clk8m_disable();
}
#endif
// recycle memory resource
ESP_RETURN_ON_ERROR(gptimer_destory(timer), TAG, "destory gptimer failed");
return ESP_OK;
@@ -475,13 +469,6 @@ static esp_err_t gptimer_select_periph_clock(gptimer_t *timer, gptimer_clock_sou
counter_src_hz = esp_clk_xtal_freq();
break;
#endif // SOC_TIMER_GROUP_SUPPORT_XTAL
#if SOC_TIMER_GROUP_SUPPORT_RC_FAST
case GPTIMER_CLK_SRC_RC_FAST:
// periph_rtc_dig_clk8m_enable must be called before periph_rtc_dig_clk8m_get_freq, to ensure a calibration is done
periph_rtc_dig_clk8m_enable();
periph_src_clk_hz = periph_rtc_dig_clk8m_get_freq();
break;
#endif // SOC_TIMER_GROUP_SUPPORT_RC_FAST
default:
ESP_RETURN_ON_FALSE(false, ESP_ERR_NOT_SUPPORTED, TAG, "clock source %d is not support", src_clk);
break;