Update LEDC, PCNT,Timer_Group driver for esp32s2beta.

components/soc/esp32/ledc_periph.c

@@ -0,0 +1,28 @@
+// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "soc/ledc_periph.h"
+#include "soc/gpio_sig_map.h"
+
+/*
+ Bunch of constants for every LEDC peripheral: GPIO signals
+*/
+const ledc_signal_conn_t ledc_periph_signal[2] = {
+    {
+    	.sig_out0_idx = LEDC_HS_SIG_OUT0_IDX,
+    },
+    {
+    	.sig_out0_idx = LEDC_LS_SIG_OUT0_IDX,
+    }
+};

components/soc/esp32/sources.cmake

@@ -11,7 +11,8 @@ set(SOC_SRCS "cpu_util.c"
     "sdio_slave_periph.c"
     "sdmmc_periph.c"
     "soc_memory_layout.c"
-    "spi_periph.c")
+    "spi_periph.c"
+    "ledc_periph.c")
 
 if(NOT CMAKE_BUILD_EARLY_EXPANSION)
     set_source_files_properties("esp32/rtc_clk.c" PROPERTIES