From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Gregory Clement <gregory.clement@bootlin.com>,
Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Kishon Vijay Abraham I <kishon@ti.com>
Cc: devicetree@vger.kernel.org,
Antoine Tenart <antoine.tenart@bootlin.com>,
Russell King <linux@armlinux.org.uk>,
Maxime Chevallier <maxime.chevallier@bootlin.com>,
Nadav Haklai <nadavh@marvell.com>,
Rob Herring <robh+dt@kernel.org>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 11/15] phy: mvebu-cp110-comphy: Update comment about powering off all lanes at boot
Date: Mon, 1 Apr 2019 18:51:27 +0200 [thread overview]
Message-ID: <20190401165131.23370-12-miquel.raynal@bootlin.com> (raw)
In-Reply-To: <20190401165131.23370-1-miquel.raynal@bootlin.com>
Now that all COMPHY modes are supported by the driver, update the
comment stating that mvebu_comphy_power_off() should be called for
each lane. This is still wrong because for compatibility reasons, it
might break users running an old firmware (the driver only uses SMC
calls for SATA, USB and PCIe configuration, there is no code in Linux
to fallback on in these cases.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
drivers/phy/marvell/phy-mvebu-cp110-comphy.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/phy/marvell/phy-mvebu-cp110-comphy.c b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c
index d66412b38ff7..6f6c26c1c622 100644
--- a/drivers/phy/marvell/phy-mvebu-cp110-comphy.c
+++ b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c
@@ -841,9 +841,11 @@ static int mvebu_comphy_probe(struct platform_device *pdev)
phy_set_drvdata(phy, lane);
/*
- * Once all modes are supported in this driver we should call
+ * All modes are supported in this driver so we could call
* mvebu_comphy_power_off(phy) here to avoid relying on the
- * bootloader/firmware configuration.
+ * bootloader/firmware configuration, but for compatibility
+ * reasons we cannot de-configure the COMPHY without being sure
+ * that the firmware is up-to-date and fully-featured.
*/
}
--
2.19.1
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next prev parent reply other threads:[~2019-04-01 16:53 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-01 16:51 [PATCH 00/15] Enhance CP110 COMPHY support Miquel Raynal
2019-04-01 16:51 ` [PATCH 01/15] phy: mvebu-cp110-comphy: Explicitly initialize the lane submode Miquel Raynal
2019-04-01 16:51 ` [PATCH 02/15] phy: mvebu-cp110-comphy: Add SMC call support Miquel Raynal
2019-04-03 9:02 ` Grzegorz Jaszczyk
2019-04-03 9:24 ` Miquel Raynal
2019-04-03 9:48 ` Russell King - ARM Linux admin
2019-04-01 16:51 ` [PATCH 03/15] phy: mvebu-cp110-comphy: List already supported Ethernet modes Miquel Raynal
2019-04-01 16:51 ` [PATCH 04/15] phy: mvebu-cp110-comphy: Add RXAUI support Miquel Raynal
2019-04-02 8:43 ` Maxime Chevallier
2019-04-02 12:24 ` Miquel Raynal
2019-04-01 16:51 ` [PATCH 05/15] phy: mvebu-cp110-comphy: Rename the macro handling only Ethernet modes Miquel Raynal
2019-04-01 16:51 ` [PATCH 06/15] phy: mvebu-cp110-comphy: Allow non-Ethernet modes to be configured Miquel Raynal
2019-04-01 16:51 ` [PATCH 07/15] phy: mvebu-cp110-comphy: Add USB3 host/device support Miquel Raynal
2019-04-01 16:51 ` [PATCH 08/15] phy: mvebu-cp110-comphy: Add SATA support Miquel Raynal
2019-04-01 16:51 ` [PATCH 09/15] phy: mvebu-cp110-comphy: Cosmetic change in a helper Miquel Raynal
2019-04-01 16:51 ` [PATCH 10/15] phy: mvebu-cp110-comphy: Add PCIe support Miquel Raynal
2019-04-01 16:51 ` Miquel Raynal [this message]
2019-04-01 16:51 ` [PATCH 12/15] arm64: dts: marvell: Add 7k/8k per-port PHYs in SATA nodes Miquel Raynal
2019-04-01 16:51 ` [PATCH 13/15] arm64: dts: marvell: Add 7k/8k PHYs in USB3 nodes Miquel Raynal
2019-04-01 16:51 ` [PATCH 14/15] arm64: dts: marvell: Add 7k/8k PHYs in PCIe nodes Miquel Raynal
2019-04-01 16:51 ` [PATCH 15/15] arm64: dts: marvell: Convert 7k/8k usb-phy properties to phy-supply Miquel Raynal
2019-04-02 19:35 ` Martin Blumenstingl
2019-04-03 8:06 ` Miquel Raynal
2019-04-08 8:51 ` Miquel Raynal
2019-04-08 19:07 ` Martin Blumenstingl
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