From: "Pali Rohár" <pali@kernel.org>
To: "Jason Cooper" <jason@lakedaemon.net>,
"Andrew Lunn" <andrew@lunn.ch>,
"Gregory Clement" <gregory.clement@bootlin.com>,
"Sebastian Hesselbarth" <sebastian.hesselbarth@gmail.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
"Andrew Murray" <amurray@thegoodpenguin.co.uk>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Remi Pommarel" <repk@triplefau.lt>,
"Marek Behún" <marek.behun@nic.cz>,
"Tomasz Maciej Nowak" <tmn505@gmail.com>,
Xogium <contact@xogium.me>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pci@vger.kernel.org
Subject: [PATCH v4 03/12] PCI: of: Zero max-link-speed value is invalid
Date: Thu, 30 Apr 2020 10:06:16 +0200 [thread overview]
Message-ID: <20200430080625.26070-4-pali@kernel.org> (raw)
In-Reply-To: <20200430080625.26070-1-pali@kernel.org>
Interpret zero value of max-link-speed property as invalid,
as the device tree bindings documentation specifies.
Signed-off-by: Pali Rohár <pali@kernel.org>
---
drivers/pci/of.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index 81ceeaa6f1d5..27839cd2459f 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -592,7 +592,7 @@ int of_pci_get_max_link_speed(struct device_node *node)
u32 max_link_speed;
if (of_property_read_u32(node, "max-link-speed", &max_link_speed) ||
- max_link_speed > 4)
+ max_link_speed == 0 || max_link_speed > 4)
return -EINVAL;
return max_link_speed;
--
2.20.1
next prev parent reply other threads:[~2020-04-30 8:06 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-30 8:06 [PATCH v4 00/12] PCI: aardvark: Fix support for Turris MOX and Compex wifi cards Pali Rohár
2020-04-30 8:06 ` [PATCH v4 01/12] PCI: aardvark: Train link immediately after enabling training Pali Rohár
2020-05-04 15:50 ` Bjorn Helgaas
2020-05-07 21:05 ` Rob Herring
2020-04-30 8:06 ` [PATCH v4 02/12] PCI: aardvark: Don't blindly enable ASPM L0s and don't write to read-only register Pali Rohár
2020-05-07 21:07 ` Rob Herring
2020-04-30 8:06 ` Pali Rohár [this message]
2020-05-07 21:07 ` [PATCH v4 03/12] PCI: of: Zero max-link-speed value is invalid Rob Herring
2020-04-30 8:06 ` [PATCH v4 04/12] PCI: aardvark: Improve link training Pali Rohár
2020-05-07 21:10 ` Rob Herring
2020-04-30 8:06 ` [PATCH v4 05/12] PCI: aardvark: Issue PERST via GPIO Pali Rohár
2020-04-30 8:22 ` Pali Rohár
2020-05-07 21:20 ` Rob Herring
2020-04-30 8:06 ` [PATCH v4 06/12] PCI: aardvark: Add FIXME comment for PCIE_CORE_CMD_STATUS_REG access Pali Rohár
2020-05-07 21:20 ` Rob Herring
2020-04-30 8:06 ` [PATCH v4 07/12] PCI: aardvark: Add PHY support Pali Rohár
2020-05-07 21:23 ` Rob Herring
2020-04-30 8:06 ` [PATCH v4 08/12] PCI: aardvark: Replace custom macros by standard linux/pci_regs.h macros Pali Rohár
2020-05-04 15:52 ` Bjorn Helgaas
2020-05-07 21:24 ` Rob Herring
2020-04-30 8:06 ` [PATCH v4 09/12] dt-bindings: PCI: aardvark: Describe new properties Pali Rohár
2020-05-07 21:25 ` Rob Herring
2020-04-30 8:06 ` [PATCH v4 10/12] arm64: dts: marvell: armada-37xx: Set pcie_reset_pin to gpio function Pali Rohár
2020-04-30 8:06 ` [PATCH v4 11/12] arm64: dts: marvell: armada-37xx: Move PCIe comphy handle property Pali Rohár
2020-04-30 8:06 ` [PATCH v4 12/12] arm64: dts: marvell: armada-37xx: Move PCIe max-link-speed property Pali Rohár
2020-05-04 15:50 ` Bjorn Helgaas
2020-05-08 13:11 ` [PATCH v4 00/12] PCI: aardvark: Fix support for Turris MOX and Compex wifi cards Tomasz Maciej Nowak
2020-05-13 11:16 ` Pali Rohár
2020-05-13 11:33 ` Lorenzo Pieralisi
2020-05-13 11:59 ` Pali Rohár
2020-05-13 11:56 ` Thomas Petazzoni
2020-05-17 15:57 ` Gregory CLEMENT
2020-05-18 10:30 ` Pali Rohár
2020-05-18 13:46 ` Lorenzo Pieralisi
2020-05-18 13:50 ` Marek Behun
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