From 3f49a57b99e7fe5aafa73e70ed146d98b1ae174c Mon Sep 17 00:00:00 2001
From: "Luke T. Shumaker" <lukeshu@lukeshu.com>
Date: Mon, 24 Feb 2025 22:54:30 -0700
Subject: libhw: rp2040_hwspi: Use interrupts instead of busy-polling

---
 libhw/rp2040_include/libhw/rp2040_hwspi.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'libhw/rp2040_include')

diff --git a/libhw/rp2040_include/libhw/rp2040_hwspi.h b/libhw/rp2040_include/libhw/rp2040_hwspi.h
index a76a2c8..eb54cdc 100644
--- a/libhw/rp2040_include/libhw/rp2040_hwspi.h
+++ b/libhw/rp2040_include/libhw/rp2040_hwspi.h
@@ -9,6 +9,7 @@
 
 #include <pico/binary_info.h> /* for bi_* */
 
+#include <libcr_ipc/sema.h>
 #include <libmisc/private.h>
 
 #include <libhw/generic/spi.h>
@@ -32,6 +33,7 @@ struct rp2040_hwspi {
 
 	/* mutable */
 	uint64_t        dead_until_ns;
+	cr_sema_t       sema;
 	END_PRIVATE(LIBHW_RP2040_HWSPI_H)
 };
 LO_IMPLEMENTATION_H(io_duplex_readwriter, struct rp2040_hwspi, rp2040_hwspi)
-- 
cgit v1.2.3-2-g168b