[CROS rebase]store firmware version info into debugfs for logger usage

sound/soc/sof/intel/bdw.c

@@ -511,6 +511,10 @@ static int bdw_fw_ready(struct snd_sof_dev *sdev, u32 msg_id)
 		 " Firmware info: version %d:%d-%s build %d on %s:%s\n",
 		 v->major, v->minor, v->tag, v->build, v->date, v->time);
 
+	/* only copy the fw_version into debugfs at first boot */
+	if (sdev->first_boot)
+		memcpy(&sdev->fw_version, v, sizeof(*v));
+
 	/* now check for extended data */
 	snd_sof_fw_parse_ext_data(sdev, MBOX_OFFSET +
 				  sizeof(struct sof_ipc_fw_ready));

sound/soc/sof/intel/byt.c

@@ -279,6 +279,10 @@ static int byt_fw_ready(struct snd_sof_dev *sdev, u32 msg_id)
 		 " Firmware info: version %d:%d-%s build %d on %s:%s\n",
 		 v->major, v->minor, v->tag, v->build, v->date, v->time);
 
+	/* only copy the fw_version into debugfs at first boot */
+	if (sdev->first_boot)
+		memcpy(&sdev->fw_version, v, sizeof(*v));
+
 	/* now check for extended data */
 	snd_sof_fw_parse_ext_data(sdev, MBOX_OFFSET +
 				  sizeof(struct sof_ipc_fw_ready));

sound/soc/sof/intel/hda-ipc.c

@@ -379,6 +379,10 @@ int hda_dsp_ipc_fw_ready(struct snd_sof_dev *sdev, u32 msg_id)
 		 " Firmware info: version %d.%d-%s build %d on %s:%s\n",
 		 v->major, v->minor, v->tag, v->build, v->date, v->time);
 
+	/* only copy the fw_version into debugfs at first boot */
+	if (sdev->first_boot)
+		memcpy(&sdev->fw_version, v, sizeof(*v));
+
 	/* now check for extended data */
 	snd_sof_fw_parse_ext_data(sdev, HDA_DSP_MBOX_UPLINK_OFFSET +
 				  sizeof(struct sof_ipc_fw_ready));

sound/soc/sof/intel/hsw.c

@@ -513,6 +513,10 @@ static int hsw_fw_ready(struct snd_sof_dev *sdev, u32 msg_id)
 		 " Firmware info: version %d:%d-%s build %d on %s:%s\n",
 		 v->major, v->minor, v->tag, v->build, v->date, v->time);
 
+	/* only copy the fw_version into debugfs at first boot */
+	if (sdev->first_boot)
+		memcpy(&sdev->fw_version, v, sizeof(*v));
+
 	/* now check for extended data */
 	snd_sof_fw_parse_ext_data(sdev, MBOX_OFFSET +
 				  sizeof(struct sof_ipc_fw_ready));

sound/soc/sof/loader.c

@@ -276,6 +276,18 @@ int snd_sof_run_firmware(struct snd_sof_dev *sdev)
 	init_waitqueue_head(&sdev->boot_wait);
 	sdev->boot_complete = false;
 
+	/* create fw_version debugfs to store boot version info */
+	if (sdev->first_boot) {
+		ret = snd_sof_debugfs_create_item(sdev, &sdev->fw_version,
+						  sizeof(sdev->fw_version),
+						  "fw_version");
+
+		if (ret < 0) {
+			dev_err(sdev->dev, "cannot create debugfs for fw_version\n");
+			return ret;
+		}
+	}
+
 	dev_dbg(sdev->dev, "booting DSP firmware\n");
 
 	/* boot the firmware on the DSP */

sound/soc/sof/sof-priv.h

@@ -336,6 +336,7 @@ struct snd_sof_dev {
 	int cl_bar;
 	struct snd_dma_buffer dmab;
 	struct sof_ipc_fw_ready fw_ready;
+	struct sof_ipc_fw_version fw_version;
 
 	/* topology */
 	struct snd_soc_tplg_ops *tplg_ops;