[PATCH] ASoC: SOF: imx: add header file for ops

[Peter Ujfalusi <peter.ujfalusi@linux.intel.com>]

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

Sparse (make C=2) complains about undeclared variables. Fix by adding
a real prototype instead of 'extern' in sof-of-dev.c

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@gmail.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
---
 sound/soc/sof/imx/imx-ops.h | 10 ++++++++++
 sound/soc/sof/imx/imx8.c    |  1 +
 sound/soc/sof/imx/imx8m.c   |  1 +
 sound/soc/sof/sof-of-dev.c  |  5 +----
 4 files changed, 13 insertions(+), 4 deletions(-)
 create mode 100644 sound/soc/sof/imx/imx-ops.h

diff --git a/sound/soc/sof/imx/imx-ops.h b/sound/soc/sof/imx/imx-ops.h
new file mode 100644
index 000000000000..24235ef8c8fa
--- /dev/null
+++ b/sound/soc/sof/imx/imx-ops.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+
+#ifndef __IMX_OPS_H__
+#define __IMX_OPS_H__
+
+extern struct snd_sof_dsp_ops sof_imx8_ops;
+extern struct snd_sof_dsp_ops sof_imx8x_ops;
+extern struct snd_sof_dsp_ops sof_imx8m_ops;
+
+#endif
diff --git a/sound/soc/sof/imx/imx8.c b/sound/soc/sof/imx/imx8.c
index 82ca920a69ab..cf27ee66b577 100644
--- a/sound/soc/sof/imx/imx8.c
+++ b/sound/soc/sof/imx/imx8.c
@@ -22,6 +22,7 @@
 #include <dt-bindings/firmware/imx/rsrc.h>
 #include "../ops.h"
 #include "imx-common.h"
+#include "imx-ops.h"
 
 /* DSP memories */
 #define IRAM_OFFSET		0x10000
diff --git a/sound/soc/sof/imx/imx8m.c b/sound/soc/sof/imx/imx8m.c
index 76f4ffd9d540..932c0e73a8b0 100644
--- a/sound/soc/sof/imx/imx8m.c
+++ b/sound/soc/sof/imx/imx8m.c
@@ -18,6 +18,7 @@
 
 #include "../ops.h"
 #include "imx-common.h"
+#include "imx-ops.h"
 
 #define MBOX_OFFSET	0x800000
 #define MBOX_SIZE	0x1000
diff --git a/sound/soc/sof/sof-of-dev.c b/sound/soc/sof/sof-of-dev.c
index d1a21edfa05d..f0f819a46456 100644
--- a/sound/soc/sof/sof-of-dev.c
+++ b/sound/soc/sof/sof-of-dev.c
@@ -11,10 +11,7 @@
 #include <sound/sof.h>
 
 #include "ops.h"
-
-extern struct snd_sof_dsp_ops sof_imx8_ops;
-extern struct snd_sof_dsp_ops sof_imx8x_ops;
-extern struct snd_sof_dsp_ops sof_imx8m_ops;
+#include "imx/imx-ops.h"
 
 /* platform specific devices */
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
-- 
2.33.0