From 07050f2e6fbefd06d2e53e7c93a28baf7be8ab96 Mon Sep 17 00:00:00 2001
From: Dimitrios Kouzis-Loukas <lookfwd@gmail.com>
Date: Sat, 11 Nov 2023 05:47:21 -0500
Subject: [PATCH] Consistency improvement on I2S mclk support for Espressif
 port #8570

---
 ports/espressif/common-hal/audiobusio/I2SOut.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ports/espressif/common-hal/audiobusio/I2SOut.c b/ports/espressif/common-hal/audiobusio/I2SOut.c
index 02474d2fb2..59e8604fb7 100644
--- a/ports/espressif/common-hal/audiobusio/I2SOut.c
+++ b/ports/espressif/common-hal/audiobusio/I2SOut.c
@@ -69,6 +69,9 @@ void common_hal_audiobusio_i2sout_construct(audiobusio_i2sout_obj_t *self,
     self->data = data;
     claim_pin(bit_clock);
     claim_pin(word_select);
+    if (main_clock) {
+        claim_pin(main_clock);
+    }
     claim_pin(data);
 }