tests: drivers: adc_dma: remove test userspace

These test uses DMA which sometimes require buffers to be placed
in custom specific section. This is not compatible with ztest
userspace, which requires variables to be placed in a specific
partition.

Signed-off-by: Hein Wessels <[email protected]>

Author: heinwessels

tests/drivers/adc/adc_dma/prj.conf

@@ -3,6 +3,4 @@ CONFIG_ZTEST_NEW_API=y
 
 CONFIG_ADC=y
 CONFIG_ADC_LOG_LEVEL_INF=y
-CONFIG_HEAP_MEM_POOL_SIZE=1024
-CONFIG_TEST_USERSPACE=y
 CONFIG_DMA=y

tests/drivers/adc/adc_dma/src/main.c

@@ -8,21 +8,4 @@
 #include <zephyr/kernel.h>
 #include <zephyr/ztest.h>
 
-extern const struct device *get_adc_device(void);
-extern const struct device *get_count_device(void);
-extern struct k_poll_signal async_sig;
-
-void *adc_dma_setup(void)
-{
-	k_object_access_grant(get_adc_device(), k_current_get());
-	k_object_access_grant(get_count_device(), k_current_get());
-#ifdef CONFIG_ADC_ASYNC
-	k_object_access_grant(&async_sig, k_current_get());
-	k_poll_signal_init(&async_sig);
-	k_thread_system_pool_assign(k_current_get());
-#endif
-
-	return NULL;
-}
-
-ZTEST_SUITE(adc_dma, NULL, adc_dma_setup, NULL, NULL, NULL);
+ZTEST_SUITE(adc_dma, NULL, NULL, NULL, NULL, NULL);

tests/drivers/adc/adc_dma/src/test_adc.c

@@ -45,10 +45,14 @@
 #define ALIGNMENT DMA_BUF_ADDR_ALIGNMENT(DT_NODELABEL(test_dma))
 #endif
 
-static ZTEST_BMEM __aligned(ALIGNMENT) int16_t m_sample_buffer[BUFFER_SIZE];
-static ZTEST_BMEM __aligned(ALIGNMENT) int16_t m_sample_buffer2[2][BUFFER_SIZE];
+static __aligned(ALIGNMENT) int16_t m_sample_buffer[BUFFER_SIZE];
+static __aligned(ALIGNMENT) int16_t m_sample_buffer2[2][BUFFER_SIZE];
 static int current_buf_inx;
 
+#if defined(CONFIG_ADC_ASYNC)
+static struct k_poll_signal async_sig;
+#endif
+
 static const struct adc_channel_cfg m_1st_channel_cfg = {
 	.gain = ADC_GAIN,
 	.reference = ADC_REFERENCE,
@@ -70,34 +74,6 @@ static const struct adc_channel_cfg m_2nd_channel_cfg = {
 };
 #endif /* defined(ADC_2ND_CHANNEL_ID) */
 
-const struct device *get_adc_device(void)
-{
-	const struct device *const dev = DEVICE_DT_GET(ADC_DEVICE_NODE);
-
-	if (!device_is_ready(dev)) {
-		printk("ADC device is not ready\n");
-		return NULL;
-	}
-
-	return dev;
-}
-
-const struct device *get_count_device(void)
-{
-#if defined(COUNTER_NODE_NAME)
-	const struct device *const dev = DEVICE_DT_GET(DT_NODELABEL(pit0));
-
-	if (!device_is_ready(dev)) {
-		printk("count device is not ready\n");
-		return NULL;
-	}
-
-	return dev;
-#else
-	return NULL;
-#endif
-}
-
 #if defined(COUNTER_NODE_NAME)
 static void init_counter(void)
 {
@@ -138,6 +114,10 @@ static const struct device *init_adc(void)
 
 	(void)memset(m_sample_buffer, 0, sizeof(m_sample_buffer));
 
+#if defined(CONFIG_ADC_ASYNC)
+	k_poll_signal_init(&async_sig);
+#endif
+
 #if defined(COUNTER_NODE_NAME)
 	init_counter();
 #endif
@@ -251,8 +231,6 @@ ZTEST_USER(adc_dma, test_adc_sample_two_channels)
  * test_adc_asynchronous_call
  */
 #if defined(CONFIG_ADC_ASYNC)
-struct k_poll_signal async_sig;
-
 static int test_task_asynchronous_call(void)
 {
 	int ret;