From: "Pali Rohár" <pali@kernel.org>
To: "Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Miquel Raynal" <miquel.raynal@bootlin.com>,
"Kishon Vijay Abraham I" <kishon@ti.com>,
"Vinod Koul" <vkoul@kernel.org>,
"Marek Behún" <marek.behun@nic.cz>,
"Tomasz Maciej Nowak" <tmn505@gmail.com>
Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] PCI: aardvark: Fix initialization with old Marvell's Arm Trusted Firmware
Date: Wed, 2 Sep 2020 16:43:44 +0200 [thread overview]
Message-ID: <20200902144344.16684-3-pali@kernel.org> (raw)
In-Reply-To: <20200902144344.16684-1-pali@kernel.org>
Old ATF automatically power on pcie phy and does not provide SMC call for
phy power on functionality which leads to aardvark initialization failure:
[ 0.330134] mvebu-a3700-comphy d0018300.phy: unsupported SMC call, try updating your firmware
[ 0.338846] phy phy-d0018300.phy.1: phy poweron failed --> -95
[ 0.344753] advk-pcie d0070000.pcie: Failed to initialize PHY (-95)
[ 0.351160] advk-pcie: probe of d0070000.pcie failed with error -95
This patch fixes above failure by ignoring 'not supported' error in
aardvark driver. In this case it is expected that phy is already power on.
Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: 366697018c9a ("PCI: aardvark: Add PHY support")
---
drivers/pci/controller/pci-aardvark.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index c5d1bb3d52e4..e1a80c35c73d 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -1108,7 +1108,9 @@ static int advk_pcie_enable_phy(struct advk_pcie *pcie)
}
ret = phy_power_on(pcie->phy);
- if (ret) {
+ if (ret == -EOPNOTSUPP) {
+ dev_warn(&pcie->pdev->dev, "PHY unsupported by firmware\n");
+ } else if (ret) {
phy_exit(pcie->phy);
return ret;
}
--
2.20.1
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next prev parent reply other threads:[~2020-09-02 14:50 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-02 14:43 [PATCH 0/2] PCI: aardvark: Fix comphy with old ATF Pali Rohár
2020-09-02 14:43 ` [PATCH 1/2] phy: marvell: comphy: Convert internal SMCC firmware return codes to errno Pali Rohár
2020-09-02 16:13 ` Andrew Lunn
2020-09-02 16:56 ` Pali Rohár
2020-09-02 17:00 ` Andrew Lunn
2020-09-02 17:05 ` Pali Rohár
2020-09-02 17:20 ` Andrew Lunn
2020-09-02 17:45 ` Pali Rohár
2020-09-30 18:17 ` Rob Herring
2020-09-02 14:43 ` Pali Rohár [this message]
2020-09-30 18:17 ` [PATCH 2/2] PCI: aardvark: Fix initialization with old Marvell's Arm Trusted Firmware Rob Herring
2020-09-16 15:14 ` [PATCH 0/2] PCI: aardvark: Fix comphy with old ATF Tomasz Maciej Nowak
2020-09-21 13:09 ` Pali Rohár
2020-10-02 12:00 ` Pali Rohár
2020-10-02 13:37 ` Lorenzo Pieralisi
2020-10-02 14:26 ` Pali Rohár
2020-10-02 14:38 ` Lorenzo Pieralisi
2020-10-02 14:52 ` Pali Rohár
2020-10-02 15:03 ` Lorenzo Pieralisi
2020-10-02 15:07 ` Pali Rohár
2020-10-02 15:15 ` Lorenzo Pieralisi
2020-10-02 15:20 ` Pali Rohár
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