1 files changed, 114 insertions, 0 deletions

diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
index 850df0e6bcab..ebf03468fac4 100644
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@ -88,6 +88,9 @@ static const struct debugfs_reg32 dwc3_regs[] = {
 	dump_register(GPRTBIMAP_HS1),
 	dump_register(GPRTBIMAP_FS0),
 	dump_register(GPRTBIMAP_FS1),
+	dump_register(GUCTL2),
+	dump_register(VER_NUMBER),
+	dump_register(VER_TYPE),
 
 	dump_register(GUSB2PHYCFG(0)),
 	dump_register(GUSB2PHYCFG(1)),
@@ -229,6 +232,8 @@ static const struct debugfs_reg32 dwc3_regs[] = {
 	dump_register(GEVNTCOUNT(0)),
 
 	dump_register(GHWPARAMS8),
+	dump_register(GUCTL3),
+	dump_register(GFLADJ),
 	dump_register(DCFG),
 	dump_register(DCTL),
 	dump_register(DEVTEN),
@@ -327,6 +332,11 @@ static int dwc3_lsp_show(struct seq_file *s, void *unused)
 	unsigned int		current_mode;
 	unsigned long		flags;
 	u32			reg;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	reg = dwc3_readl(dwc->regs, DWC3_GSTS);
@@ -345,6 +355,8 @@ static int dwc3_lsp_show(struct seq_file *s, void *unused)
 	}
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -390,6 +402,11 @@ static int dwc3_mode_show(struct seq_file *s, void *unused)
 	struct dwc3		*dwc = s->private;
 	unsigned long		flags;
 	u32			reg;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	reg = dwc3_readl(dwc->regs, DWC3_GCTL);
@@ -409,6 +426,8 @@ static int dwc3_mode_show(struct seq_file *s, void *unused)
 		seq_printf(s, "UNKNOWN %08x\n", DWC3_GCTL_PRTCAP(reg));
 	}
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -458,6 +477,11 @@ static int dwc3_testmode_show(struct seq_file *s, void *unused)
 	struct dwc3		*dwc = s->private;
 	unsigned long		flags;
 	u32			reg;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	reg = dwc3_readl(dwc->regs, DWC3_DCTL);
@@ -488,6 +512,8 @@ static int dwc3_testmode_show(struct seq_file *s, void *unused)
 		seq_printf(s, "UNKNOWN %d\n", reg);
 	}
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -504,6 +530,7 @@ static ssize_t dwc3_testmode_write(struct file *file,
 	unsigned long		flags;
 	u32			testmode = 0;
 	char			buf[32];
+	int			ret;
 
 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
 		return -EFAULT;
@@ -521,10 +548,16 @@ static ssize_t dwc3_testmode_write(struct file *file,
 	else
 		testmode = 0;
 
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
+
 	spin_lock_irqsave(&dwc->lock, flags);
 	dwc3_gadget_set_test_mode(dwc, testmode);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return count;
 }
 
@@ -543,12 +576,18 @@ static int dwc3_link_state_show(struct seq_file *s, void *unused)
 	enum dwc3_link_state	state;
 	u32			reg;
 	u8			speed;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	reg = dwc3_readl(dwc->regs, DWC3_GSTS);
 	if (DWC3_GSTS_CURMOD(reg) != DWC3_GSTS_CURMOD_DEVICE) {
 		seq_puts(s, "Not available\n");
 		spin_unlock_irqrestore(&dwc->lock, flags);
+		pm_runtime_put_sync(dwc->dev);
 		return 0;
 	}
 
@@ -561,6 +600,8 @@ static int dwc3_link_state_show(struct seq_file *s, void *unused)
 		   dwc3_gadget_hs_link_string(state));
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -579,6 +620,7 @@ static ssize_t dwc3_link_state_write(struct file *file,
 	char			buf[32];
 	u32			reg;
 	u8			speed;
+	int			ret;
 
 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
 		return -EFAULT;
@@ -598,10 +640,15 @@ static ssize_t dwc3_link_state_write(struct file *file,
 	else
 		return -EINVAL;
 
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
+
 	spin_lock_irqsave(&dwc->lock, flags);
 	reg = dwc3_readl(dwc->regs, DWC3_GSTS);
 	if (DWC3_GSTS_CURMOD(reg) != DWC3_GSTS_CURMOD_DEVICE) {
 		spin_unlock_irqrestore(&dwc->lock, flags);
+		pm_runtime_put_sync(dwc->dev);
 		return -EINVAL;
 	}
 
@@ -611,12 +658,15 @@ static ssize_t dwc3_link_state_write(struct file *file,
 	if (speed < DWC3_DSTS_SUPERSPEED &&
 	    state != DWC3_LINK_STATE_RECOV) {
 		spin_unlock_irqrestore(&dwc->lock, flags);
+		pm_runtime_put_sync(dwc->dev);
 		return -EINVAL;
 	}
 
 	dwc3_gadget_set_link_state(dwc, state);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return count;
 }
 
@@ -640,6 +690,11 @@ static int dwc3_tx_fifo_size_show(struct seq_file *s, void *unused)
 	unsigned long		flags;
 	u32			mdwidth;
 	u32			val;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	val = dwc3_core_fifo_space(dep, DWC3_TXFIFO);
@@ -652,6 +707,8 @@ static int dwc3_tx_fifo_size_show(struct seq_file *s, void *unused)
 	seq_printf(s, "%u\n", val);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -662,6 +719,11 @@ static int dwc3_rx_fifo_size_show(struct seq_file *s, void *unused)
 	unsigned long		flags;
 	u32			mdwidth;
 	u32			val;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	val = dwc3_core_fifo_space(dep, DWC3_RXFIFO);
@@ -674,6 +736,8 @@ static int dwc3_rx_fifo_size_show(struct seq_file *s, void *unused)
 	seq_printf(s, "%u\n", val);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -683,12 +747,19 @@ static int dwc3_tx_request_queue_show(struct seq_file *s, void *unused)
 	struct dwc3		*dwc = dep->dwc;
 	unsigned long		flags;
 	u32			val;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	val = dwc3_core_fifo_space(dep, DWC3_TXREQQ);
 	seq_printf(s, "%u\n", val);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -698,12 +769,19 @@ static int dwc3_rx_request_queue_show(struct seq_file *s, void *unused)
 	struct dwc3		*dwc = dep->dwc;
 	unsigned long		flags;
 	u32			val;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	val = dwc3_core_fifo_space(dep, DWC3_RXREQQ);
 	seq_printf(s, "%u\n", val);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -713,12 +791,19 @@ static int dwc3_rx_info_queue_show(struct seq_file *s, void *unused)
 	struct dwc3		*dwc = dep->dwc;
 	unsigned long		flags;
 	u32			val;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	val = dwc3_core_fifo_space(dep, DWC3_RXINFOQ);
 	seq_printf(s, "%u\n", val);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -728,12 +813,19 @@ static int dwc3_descriptor_fetch_queue_show(struct seq_file *s, void *unused)
 	struct dwc3		*dwc = dep->dwc;
 	unsigned long		flags;
 	u32			val;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	val = dwc3_core_fifo_space(dep, DWC3_DESCFETCHQ);
 	seq_printf(s, "%u\n", val);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -743,12 +835,19 @@ static int dwc3_event_queue_show(struct seq_file *s, void *unused)
 	struct dwc3		*dwc = dep->dwc;
 	unsigned long		flags;
 	u32			val;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	val = dwc3_core_fifo_space(dep, DWC3_EVENTQ);
 	seq_printf(s, "%u\n", val);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -793,6 +892,11 @@ static int dwc3_trb_ring_show(struct seq_file *s, void *unused)
 	struct dwc3		*dwc = dep->dwc;
 	unsigned long		flags;
 	int			i;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	if (dep->number <= 1) {
@@ -822,6 +926,8 @@ static int dwc3_trb_ring_show(struct seq_file *s, void *unused)
 out:
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -834,6 +940,11 @@ static int dwc3_ep_info_register_show(struct seq_file *s, void *unused)
 	u32			lower_32_bits;
 	u32			upper_32_bits;
 	u32			reg;
+	int			ret;
+
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	reg = DWC3_GDBGLSPMUX_EPSELECT(dep->number);
@@ -846,6 +957,8 @@ static int dwc3_ep_info_register_show(struct seq_file *s, void *unused)
 	seq_printf(s, "0x%016llx\n", ep_info);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
+	pm_runtime_put_sync(dwc->dev);
+
 	return 0;
 }
 
@@ -905,6 +1018,7 @@ void dwc3_debugfs_init(struct dwc3 *dwc)
 	dwc->regset->regs = dwc3_regs;
 	dwc->regset->nregs = ARRAY_SIZE(dwc3_regs);
 	dwc->regset->base = dwc->regs - DWC3_GLOBALS_REGS_START;
+	dwc->regset->dev = dwc->dev;
 
 	root = debugfs_create_dir(dev_name(dwc->dev), usb_debug_root);
 	dwc->debug_root = root;