spi_slave: fix io re-config issue

components/driver/spi/gpspi/spi_slave.c

@@ -50,6 +50,7 @@ static const char *SPI_TAG = "spi_slave";
 
 typedef struct {
     int id;
+    spi_bus_config_t bus_config;
     spi_slave_interface_config_t cfg;
     intr_handle_t intr;
     spi_slave_hal_context_t hal;
@@ -156,6 +157,7 @@ esp_err_t spi_slave_initialize(spi_host_device_t host, const spi_bus_config_t *b
     }
     memset(spihost[host], 0, sizeof(spi_slave_t));
     memcpy(&spihost[host]->cfg, slave_config, sizeof(spi_slave_interface_config_t));
+    memcpy(&spihost[host]->bus_config, bus_config, sizeof(spi_bus_config_t));
     spihost[host]->id = host;
 
     bool use_dma = (dma_chan != SPI_DMA_DISABLED);
@@ -301,6 +303,7 @@ esp_err_t spi_slave_free(spi_host_device_t host)
     if (spihost[host]->dma_enabled) {
         spicommon_dma_chan_free(host);
     }
+    spicommon_bus_free_io_cfg(&spihost[host]->bus_config);
     free(spihost[host]->hal.dmadesc_tx);
     free(spihost[host]->hal.dmadesc_rx);
     esp_intr_free(spihost[host]->intr);

components/driver/test_apps/spi/slave/main/test_app_main.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -8,7 +8,7 @@
 #include "unity_test_utils.h"
 #include "esp_heap_caps.h"
 
-#define TEST_MEMORY_LEAK_THRESHOLD (100)
+#define TEST_MEMORY_LEAK_THRESHOLD (120)
 
 static size_t before_free_8bit;
 static size_t before_free_32bit;

components/driver/test_apps/spi/slave/main/test_spi_slave.c

@@ -736,14 +736,8 @@ TEST_CASE("test_slave_isr_pin_to_core","[spi]")
     slave_expect = 0;
     for (int i = 0; i < TEST_ISR_CNT; i++) {
         TEST_ESP_OK(spi_slave_initialize(TEST_SPI_HOST, &buscfg, &slvcfg, SPI_DMA_CH_AUTO));
-
         TEST_ESP_OK(spi_slave_queue_trans(TEST_SPI_HOST, &trans_cfg, portMAX_DELAY));
-        // This two delay used for hardware to activate a interrupt after invoke
-        vTaskDelay(1);
-        // to invoke a trans_done intr for spi slave without a master
-        spi_ll_set_int_stat(SPI_LL_GET_HW(TEST_SPI_HOST));
-        vTaskDelay(1);
-
+        vTaskDelay(1);  // Waiting ISR on core 1 to be done.
         TEST_ESP_OK(spi_slave_free(TEST_SPI_HOST));
     }
     printf("Test Slave ISR Assign CPU1: %d : %ld\n", TEST_ISR_CNT, slave_expect);