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Commit 2124f9e6 authored by John Youn's avatar John Youn Committed by Felipe Balbi
Browse files

usb: dwc2: Show dr_mode via debugfs 



Show the value of dr_mode via a debufs file.

Signed-off-by: default avatarJohn Youn <johnyoun@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 5dc64225

drivers/usb/dwc2/debugfs.c

+29 −0
Original line number Diff line number Diff line
@@ -839,6 +839,29 @@ static const struct file_operations hw_params_fops = { 
	.release	= single_release,

};



static int dr_mode_show(struct seq_file *seq, void *v)

{

	struct dwc2_hsotg *hsotg = seq->private;

	const char *dr_mode = "";



	device_property_read_string(hsotg->dev, "dr_mode", &dr_mode);

	seq_printf(seq, "%s\n", dr_mode);

	return 0;

}



static int dr_mode_open(struct inode *inode, struct file *file)

{

	return single_open(file, dr_mode_show, inode->i_private);

}



static const struct file_operations dr_mode_fops = {

	.owner		= THIS_MODULE,

	.open		= dr_mode_open,

	.read		= seq_read,

	.llseek		= seq_lseek,

	.release	= single_release,

};



int dwc2_debugfs_init(struct dwc2_hsotg *hsotg)

{

	int			ret;
@@ -863,6 +886,12 @@ int dwc2_debugfs_init(struct dwc2_hsotg *hsotg) 
		dev_err(hsotg->dev, "%s: failed to create hw_params\n",

			__func__);



	file = debugfs_create_file("dr_mode", 0444,

				   hsotg->debug_root,

				   hsotg, &dr_mode_fops);

	if (IS_ERR(file))

		dev_err(hsotg->dev, "%s: failed to create dr_mode\n", __func__);



	/* Add gadget debugfs nodes */

	dwc2_hsotg_create_debug(hsotg);