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usb: dwc3: Refactor dwc3_mode_show 

Use dwc3_mode_string as the single source of truth for mode-to-string
conversion.

Signed-off-by: Kuen-Han Tsai <khtsai@google.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20250822092411.173519-2-khtsai@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kuen-Han Tsai 2025-08-22 17:23:46 +08:00 committed by Greg Kroah-Hartman
parent 55f4ac8f93
commit 4c9860fbe6
1 changed files with 5 additions and 7 deletions
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12
drivers/usb/dwc3/debugfs.c
View File

@ -402,6 +402,7 @@ static int dwc3_mode_show(struct seq_file *s, void *unused)
struct dwc3 *dwc = s->private;
unsigned long flags;
u32 reg;
u32 mode;
int ret;
ret = pm_runtime_resume_and_get(dwc->dev);
@ -412,18 +413,15 @@ static int dwc3_mode_show(struct seq_file *s, void *unused)
reg = dwc3_readl(dwc->regs, DWC3_GCTL);
spin_unlock_irqrestore(&dwc->lock, flags);
switch (DWC3_GCTL_PRTCAP(reg)) {
mode = DWC3_GCTL_PRTCAP(reg);
switch (mode) {
case DWC3_GCTL_PRTCAP_HOST:
seq_puts(s, "host\n");
break;
case DWC3_GCTL_PRTCAP_DEVICE:
seq_puts(s, "device\n");
break;
case DWC3_GCTL_PRTCAP_OTG:
seq_puts(s, "otg\n");
seq_printf(s, "%s\n", dwc3_mode_string(mode));
break;
default:
seq_printf(s, "UNKNOWN %08x\n", DWC3_GCTL_PRTCAP(reg));
seq_printf(s, "UNKNOWN %08x\n", mode);
}
pm_runtime_put_sync(dwc->dev);