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feat(mipi_dsi): add pm lock for clock source

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This commit is contained in:
morris 2024-04-23 18:12:35 +08:00
parent 3cb622cbf6
commit ef57e5105d
4 changed files with 33 additions and 0 deletions
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13
components/esp_lcd/dsi/esp_lcd_mipi_dsi_bus.c
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@ -55,6 +55,15 @@ esp_err_t esp_lcd_new_dsi_bus(const esp_lcd_dsi_bus_config_t *bus_config, esp_lc
mipi_dsi_ll_enable_phy_reference_clock(bus_id, true);
}
#if CONFIG_PM_ENABLE
// When MIPI DSI is working, we don't expect the clock source would be turned off
esp_pm_lock_type_t pm_lock_type = ESP_PM_NO_LIGHT_SLEEP;
ret = esp_pm_lock_create(pm_lock_type, 0, "dsi_phy", &dsi_bus->pm_lock);
ESP_GOTO_ON_ERROR(ret, err, TAG, "create PM lock failed");
// before we configure the PLL, we want the clock source to be stable
esp_pm_lock_acquire(dsi_bus->pm_lock);
#endif
// initialize HAL context
mipi_dsi_hal_config_t hal_config = {
.bus_id = bus_id,
@ -125,6 +134,10 @@ esp_err_t esp_lcd_del_dsi_bus(esp_lcd_dsi_bus_handle_t bus)
DSI_RCC_ATOMIC() {
mipi_dsi_ll_enable_bus_clock(bus_id, false);
}
if (bus->pm_lock) {
esp_pm_lock_release(bus->pm_lock);
esp_pm_lock_delete(bus->pm_lock);
}
free(bus);
return ESP_OK;
}

13
components/esp_lcd/dsi/esp_lcd_panel_dpi.c
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@ -42,6 +42,7 @@ struct esp_lcd_dpi_panel_t {
dw_gdma_link_list_handle_t link_lists[DPI_PANEL_MAX_FB_NUM]; // DMA link list
esp_async_fbcpy_handle_t fbcpy_handle; // Use DMA2D to do frame buffer copy
SemaphoreHandle_t draw_sem; // A semaphore used to synchronize the draw operations when DMA2D is used
esp_pm_lock_handle_t pm_lock; // Power management lock
esp_lcd_dpi_panel_color_trans_done_cb_t on_color_trans_done; // Callback invoked when color data transfer has finished
esp_lcd_dpi_panel_refresh_done_cb_t on_refresh_done; // Callback invoked when one refresh operation finished (kinda like a vsync end)
void *user_ctx; // User context for the callback
@ -232,6 +233,14 @@ esp_err_t esp_lcd_new_panel_dpi(esp_lcd_dsi_bus_handle_t bus, const esp_lcd_dpi_
mipi_dsi_ll_enable_dpi_clock(bus_id, true);
}
#if CONFIG_PM_ENABLE
// When MIPI DSI is working, we don't expect the clock source would be turned off
esp_pm_lock_type_t pm_lock_type = ESP_PM_NO_LIGHT_SLEEP;
ret = esp_pm_lock_create(pm_lock_type, 0, "dsi_dpi", &dpi_panel->pm_lock);
ESP_GOTO_ON_ERROR(ret, err, TAG, "create PM lock failed");
esp_pm_lock_acquire(dpi_panel->pm_lock);
#endif
// create DMA resources
ESP_GOTO_ON_ERROR(dpi_panel_create_dma_link(dpi_panel), err, TAG, "initialize DMA link failed");
@ -318,6 +327,10 @@ static esp_err_t dpi_panel_del(esp_lcd_panel_t *panel)
if (dpi_panel->draw_sem) {
vSemaphoreDelete(dpi_panel->draw_sem);
}
if (dpi_panel->pm_lock) {
esp_pm_lock_release(dpi_panel->pm_lock);
esp_pm_lock_delete(dpi_panel->pm_lock);
}
free(dpi_panel);
return ESP_OK;
}

2
components/esp_lcd/dsi/mipi_dsi_priv.h
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@ -9,6 +9,7 @@
#include "hal/mipi_dsi_ll.h"
#include "esp_heap_caps.h"
#include "esp_private/periph_ctrl.h"
#include "esp_pm.h"
#if SOC_PERIPH_CLK_CTRL_SHARED
#define DSI_CLOCK_SRC_ATOMIC() PERIPH_RCC_ATOMIC()
@ -35,6 +36,7 @@ extern "C" {
typedef struct esp_lcd_dsi_bus_t {
int bus_id;
mipi_dsi_hal_context_t hal;
esp_pm_lock_handle_t pm_lock;
} esp_lcd_dsi_bus_t;
#ifdef __cplusplus

5
components/esp_lcd/test_apps/mipi_dsi_lcd/sdkconfig.ci.release Normal file
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@ -0,0 +1,5 @@
CONFIG_PM_ENABLE=y
CONFIG_FREERTOS_USE_TICKLESS_IDLE=y
CONFIG_COMPILER_OPTIMIZATION_SIZE=y
CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_SIZE=y
CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_SILENT=y