From 09b55dc297da2b4dc3915f2a4cc0e3b53ea07359 Mon Sep 17 00:00:00 2001
From: robert-hh <robert@hammelrath.com>
Date: Tue, 8 Mar 2022 11:40:26 +0100
Subject: [PATCH] esp32/machine_hw_spi: Use automatic DMA channel selection for
 SPI on C3.

Addresses issue #8204.
---
 ports/esp32/machine_hw_spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ports/esp32/machine_hw_spi.c b/ports/esp32/machine_hw_spi.c
index 1515b0074..3e720adb1 100644
--- a/ports/esp32/machine_hw_spi.c
+++ b/ports/esp32/machine_hw_spi.c
@@ -268,7 +268,7 @@ STATIC void machine_hw_spi_init_internal(
     // Select DMA channel based on the hardware SPI host
     int dma_chan = 0;
     if (self->host == HSPI_HOST) {
-        #if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3
+        #if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3
         dma_chan = 3;
         #else
         dma_chan = 1;