From: Ladislav Michl <oss-lists@triops.cz>
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Thinh Nguyen <Thinh.Nguyen@synopsys.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Liang He <windhl@126.com>
Cc: linux-mips@vger.kernel.org, linux-usb@vger.kernel.org
Subject: [PATCH v4 5/6] usb: dwc3: dwc3-octeon: Dump control register on clock init failure
Date: Sun, 16 Jul 2023 16:17:03 +0200 [thread overview]
Message-ID: <ZLP73wvnW8Ke+7RB@lenoch> (raw)
In-Reply-To: <ZLP7CSUm095ADtdw@lenoch>
From: Ladislav Michl <ladis@linux-mips.org>
It might be interesting to know control register value in case
clock fails to enable.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
---
CHANGES:
- v4: new patch
drivers/usb/dwc3/dwc3-octeon.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/dwc3/dwc3-octeon.c b/drivers/usb/dwc3/dwc3-octeon.c
index 45726b39adab..9116df7def86 100644
--- a/drivers/usb/dwc3/dwc3-octeon.c
+++ b/drivers/usb/dwc3/dwc3-octeon.c
@@ -299,8 +299,8 @@ static int dwc3_octeon_setup(struct dwc3_octeon *octeon,
val = dwc3_octeon_readq(uctl_ctl_reg);
if ((div != FIELD_GET(USBDRD_UCTL_CTL_H_CLKDIV_SEL, val)) ||
(!(FIELD_GET(USBDRD_UCTL_CTL_H_CLK_EN, val)))) {
- dev_err(dev, "dwc3 controller clock init failure.\n");
- return -EINVAL;
+ dev_err(dev, "clock init failure (UCTL_CTL=%016llx)\n", val);
+ return -EINVAL;
}
/* Step 4c: Deassert the controller clock divider reset. */
--
2.39.2
next prev parent reply other threads:[~2023-07-16 14:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-16 14:13 [PATCH v4 0/6] Cleanup Octeon DWC3 glue code Ladislav Michl
2023-07-16 14:14 ` [PATCH v4 1/6] usb: dwc3: dwc3-octeon: Convert to glue driver Ladislav Michl
2023-07-16 14:15 ` [PATCH v4 2/6] usb: dwc3: dwc3-octeon: Pass dwc3_octeon to setup functions Ladislav Michl
2023-07-17 7:59 ` Philippe Mathieu-Daudé
2023-07-16 14:15 ` [PATCH v4 3/6] usb: dwc3: dwc3-octeon: Avoid half-initialized controller state Ladislav Michl
2023-07-16 14:16 ` [PATCH v4 4/6] usb: dwc3: dwc3-octeon: Move node parsing into driver probe Ladislav Michl
2023-07-16 14:17 ` Ladislav Michl [this message]
2023-07-17 7:59 ` [PATCH v4 5/6] usb: dwc3: dwc3-octeon: Dump control register on clock init failure Philippe Mathieu-Daudé
2023-07-16 14:18 ` [PATCH v4 6/6] usb: dwc3: dwc3-octeon: Add SPDX header and copyright Ladislav Michl
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