net: wwan: iosm: move debugfs knobs into a subdir

The modem traces collection is a device (and so driver) specific option.
Therefore, move the related debugfs files into a driver-specific
subdirectory under the common per WWAN device directory.

Signed-off-by: Sergey Ryazanov <[email protected]>
Reviewed-by: Loic Poulain <[email protected]>
Acked-by: M Chetan Kumar <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>

1 files changed, 29 insertions, 0 deletions

diff --git a/drivers/net/wwan/iosm/iosm_ipc_debugfs.c b/drivers/net/wwan/iosm/iosm_ipc_debugfs.c
new file mode 100644
index 000000000000..f2f57751a7d2
--- /dev/null
+++ b/drivers/net/wwan/iosm/iosm_ipc_debugfs.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2021 Intel Corporation.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/wwan.h>
+
+#include "iosm_ipc_imem.h"
+#include "iosm_ipc_trace.h"
+#include "iosm_ipc_debugfs.h"
+
+void ipc_debugfs_init(struct iosm_imem *ipc_imem)
+{
+	struct dentry *debugfs_pdev = wwan_get_debugfs_dir(ipc_imem->dev);
+
+	ipc_imem->debugfs_dir = debugfs_create_dir(KBUILD_MODNAME,
+						   debugfs_pdev);
+
+	ipc_imem->trace = ipc_trace_init(ipc_imem);
+	if (!ipc_imem->trace)
+		dev_warn(ipc_imem->dev, "trace channel init failed");
+}
+
+void ipc_debugfs_deinit(struct iosm_imem *ipc_imem)
+{
+	ipc_trace_deinit(ipc_imem->trace);
+	debugfs_remove_recursive(ipc_imem->debugfs_dir);
+}