fix(ledc): always allocate memory from internal ram

components/driver/test_apps/ledc/main/CMakeLists.txt

@@ -4,5 +4,5 @@ set(srcs "test_app_main.c"
 # In order for the cases defined by `TEST_CASE` to be linked into the final elf,
 # the component can be registered as WHOLE_ARCHIVE
 idf_component_register(SRCS ${srcs}
-                       PRIV_REQUIRES unity driver esp_timer
+                       PRIV_REQUIRES unity driver esp_timer esp_psram
                        WHOLE_ARCHIVE)

components/driver/test_apps/ledc/pytest_ledc.py

@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
 # SPDX-License-Identifier: CC0-1.0
 
 import pytest
@@ -6,6 +6,7 @@ from pytest_embedded_idf import IdfDut
 
 
 @pytest.mark.supported_targets
+@pytest.mark.temp_skip_ci(targets=['esp32s3'], reason='skip due to duplication with test_ledc_psram')
 @pytest.mark.generic
 @pytest.mark.parametrize(
     'config',
@@ -17,3 +18,17 @@ from pytest_embedded_idf import IdfDut
 )
 def test_ledc(dut: IdfDut) -> None:
     dut.run_all_single_board_cases()
+
+
+@pytest.mark.esp32s3
+@pytest.mark.octal_psram
+@pytest.mark.parametrize(
+    'config',
+    [
+        'iram_safe',
+        'release',
+    ],
+    indirect=True,
+)
+def test_ledc_psram(dut: IdfDut) -> None:
+    dut.run_all_single_board_cases()

components/driver/test_apps/ledc/sdkconfig.defaults.esp32s3

@@ -0,0 +1,4 @@
+CONFIG_SPIRAM=y
+CONFIG_SPIRAM_MODE_OCT=y
+CONFIG_SPIRAM_SPEED_80M=y
+CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=0