Merge tag 'asoc-v6.10' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v6.10

This is a very big update, in large part due to extensive work the Intel
people have been doing in their drivers though it's also been busy
elsewhere.  There's also a big overhaul of the DAPM documentation from
Luca Ceresoli arising from the work he did putting together his recent
ELC talk, and he also contributed a new tool for visualising the DAPM
state.

 - A new tool dapm-graph for visualising the DAPM state.
 - Substantial fixes and clarifications for the DAPM documentation.
 - Very large updates throughout the Intel audio drivers.
 - Cleanups of accessors for driver data, module labelling, and for
   constification.
 - Modernsation and cleanup work in the Mediatek drivers.
 - Several fixes and features for the DaVinci I2S driver.
 - New drivers for several AMD and Intel platforms, Nuvoton NAU8325,
   Rockchip RK3308 and Texas Instruments PCM6240.

1 files changed, 23 insertions, 23 deletions

diff --git a/sound/soc/sof/debug.c b/sound/soc/sof/debug.c
index 7275437ea8d8..d0ffa1d71145 100644
--- a/sound/soc/sof/debug.c
+++ b/sound/soc/sof/debug.c
@@ -3,7 +3,7 @@
 // This file is provided under a dual BSD/GPLv2 license.  When using or
 // redistributing this file, you may do so under either license.
 //
-// Copyright(c) 2018 Intel Corporation. All rights reserved.
+// Copyright(c) 2018 Intel Corporation
 //
 // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
 //
@@ -19,24 +19,6 @@
 #include "sof-priv.h"
 #include "ops.h"
 
-static ssize_t sof_dfsentry_write(struct file *file, const char __user *buffer,
-				  size_t count, loff_t *ppos)
-{
-	size_t size;
-	char *string;
-	int ret;
-
-	string = kzalloc(count+1, GFP_KERNEL);
-	if (!string)
-		return -ENOMEM;
-
-	size = simple_write_to_buffer(string, count, ppos, buffer, count);
-	ret = size;
-
-	kfree(string);
-	return ret;
-}
-
 static ssize_t sof_dfsentry_read(struct file *file, char __user *buffer,
 				 size_t count, loff_t *ppos)
 {
@@ -126,7 +108,6 @@ static const struct file_operations sof_dfs_fops = {
 	.open = simple_open,
 	.read = sof_dfsentry_read,
 	.llseek = default_llseek,
-	.write = sof_dfsentry_write,
 };
 
 /* create FS entry for debug files that can expose DSP memories, registers */
@@ -330,8 +311,8 @@ EXPORT_SYMBOL_GPL(snd_sof_dbg_memory_info_init);
 
 int snd_sof_dbg_init(struct snd_sof_dev *sdev)
 {
+	const struct snd_sof_dsp_ops *ops = sof_ops(sdev);
 	struct snd_sof_pdata *plat_data = sdev->pdata;
-	struct snd_sof_dsp_ops *ops = sof_ops(sdev);
 	const struct snd_sof_debugfs_map *map;
 	struct dentry *fw_profile;
 	int i;
@@ -345,8 +326,27 @@ int snd_sof_dbg_init(struct snd_sof_dev *sdev)
 
 	debugfs_create_str("fw_path", 0444, fw_profile,
 			   (char **)&plat_data->fw_filename_prefix);
-	debugfs_create_str("fw_lib_path", 0444, fw_profile,
-			   (char **)&plat_data->fw_lib_prefix);
+	/* library path is not valid for IPC3 */
+	if (plat_data->ipc_type != SOF_IPC_TYPE_3) {
+		/*
+		 * fw_lib_prefix can be NULL if the vendor/platform does not
+		 * support loadable libraries
+		 */
+		if (plat_data->fw_lib_prefix) {
+			debugfs_create_str("fw_lib_path", 0444, fw_profile,
+					   (char **)&plat_data->fw_lib_prefix);
+		} else {
+			static char *fw_lib_path;
+
+			fw_lib_path = devm_kasprintf(sdev->dev, GFP_KERNEL,
+						     "Not supported");
+			if (!fw_lib_path)
+				return -ENOMEM;
+
+			debugfs_create_str("fw_lib_path", 0444, fw_profile,
+					   (char **)&fw_lib_path);
+		}
+	}
 	debugfs_create_str("tplg_path", 0444, fw_profile,
 			   (char **)&plat_data->tplg_filename_prefix);
 	debugfs_create_str("fw_name", 0444, fw_profile,