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fix(drivers): enlarge the default DMA burst size in peripheral drivers

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This commit is contained in:
morris
2025-12-19 12:14:29 +08:00
parent b652c1a5e8
commit 798ec369ce
4 changed files with 4 additions and 4 deletions
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2
components/esp_driver_cam/dvp/src/esp_cam_ctlr_dvp_gdma.c
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@@ -101,7 +101,7 @@ esp_err_t esp_cam_ctlr_dvp_dma_init(esp_cam_ctlr_dvp_dma_t *dma, uint32_t burst_
ESP_GOTO_ON_ERROR(gdma_apply_strategy(dma->dma_chan, &strategy_config), fail1, TAG, "apply strategy failed");
// set DMA transfer ability
gdma_transfer_config_t transfer_config = {
.max_data_burst_size = burst_size,
.max_data_burst_size = burst_size ? burst_size : 32, // Enable DMA burst transfer for better performance
.access_ext_mem = true,
};
ESP_GOTO_ON_ERROR(gdma_config_transfer(dma->dma_chan, &transfer_config), fail1, TAG, "set trans ability failed");

2
components/esp_driver_parlio/src/parlio_tx.c
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@@ -174,7 +174,7 @@ static esp_err_t parlio_tx_unit_init_dma(parlio_tx_unit_t *tx_unit, const parlio
// configure DMA transfer parameters
gdma_transfer_config_t trans_cfg = {
.max_data_burst_size = config->dma_burst_size ? config->dma_burst_size : 16, // Enable DMA burst transfer for better performance,
.max_data_burst_size = config->dma_burst_size ? config->dma_burst_size : 32, // Enable DMA burst transfer for better performance,
.access_ext_mem = true, // support transmit PSRAM buffer
};
ESP_RETURN_ON_ERROR(gdma_config_transfer(tx_unit->dma_chan, &trans_cfg), TAG, "config DMA transfer failed");

2
components/esp_driver_spi/src/gpspi/spi_common.c
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@@ -256,7 +256,7 @@ static esp_err_t alloc_dma_chan(spi_host_device_t host_id, spi_dma_chan_t dma_ch
#endif
// TODO: add support to allow SPI transfer PSRAM buffer
gdma_transfer_config_t trans_cfg = {
.max_data_burst_size = 16,
.max_data_burst_size = 32,
.access_ext_mem = false,
};
ESP_RETURN_ON_ERROR(gdma_config_transfer(dma_ctx->tx_dma_chan, &trans_cfg), SPI_TAG, "config gdma tx transfer failed");

2
components/esp_lcd/i80/esp_lcd_panel_io_i80.c
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@@ -618,7 +618,7 @@ static esp_err_t lcd_i80_init_dma_link(esp_lcd_i80_bus_handle_t bus, const esp_l
gdma_apply_strategy(bus->dma_chan, &strategy_config);
// config DMA transfer parameters
gdma_transfer_config_t trans_cfg = {
.max_data_burst_size = bus_config->dma_burst_size ? bus_config->dma_burst_size : 16, // Enable DMA burst transfer for better performance
.max_data_burst_size = bus_config->dma_burst_size ? bus_config->dma_burst_size : 32, // Enable DMA burst transfer for better performance
.access_ext_mem = true, // the LCD can carry pixel buffer from the external memory
};
ESP_RETURN_ON_ERROR(gdma_config_transfer(bus->dma_chan, &trans_cfg), TAG, "config DMA transfer failed");