linux-kernel - [PATCH 1/1] phy: fix build breakage: add PHY_MODE

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Date:   Sat, 12 Jan 2019 17:29:09 -0800
From:   john.hubbard@...il.com
To:     Kishon Vijay Abraham I <kishon@...com>,
        Jisheng Zhang <Jisheng.Zhang@...aptics.com>,
        Rob Herring <robh@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        John Hubbard <jhubbard@...dia.com>,
        Grzegorz Jaszczyk <jaz@...ihalf.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 1/1] phy: fix build breakage: add PHY_MODE_SATA

From: John Hubbard <jhubbard@...dia.com>

Commit 49e54187ae0b ("ata: libahci_platform: comply to PHY framework") uses
the PHY_MODE_SATA, but that enum had not yet been added. This caused a
build failure for me, with today's linux.git.

Also, there is a potentially conflicting (mis-named) PHY_MODE_SATA, hiding
in the Marvell Berlin SATA PHY driver.

Fix the build by:

    1) Renaming Marvell's defined value to a more scoped name,
       in order to avoid any potential conflicts: PHY_BERLIN_MODE_SATA.

    2) Adding the missing enum, which was going to be added anyway as part
       of [1].

[1] https://lkml.kernel.org/r/20190108163124.6409-3-miquel.raynal@bootlin.com

Fixes: 49e54187ae0b ("ata: libahci_platform: comply to PHY framework")

Cc: Grzegorz Jaszczyk <jaz@...ihalf.com>
Cc: Miquel Raynal <miquel.raynal@...tlin.com>
Cc: Hans de Goede <hdegoede@...hat.com>
Cc: Jens Axboe <axboe@...nel.dk>
Signed-off-by: John Hubbard <jhubbard@...dia.com>
---
 drivers/phy/marvell/phy-berlin-sata.c | 5 +++--
 include/linux/phy/phy.h               | 1 +
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/phy/marvell/phy-berlin-sata.c b/drivers/phy/marvell/phy-berlin-sata.c
index a91fc67fc4e0..d70ba9bc42d9 100644
--- a/drivers/phy/marvell/phy-berlin-sata.c
+++ b/drivers/phy/marvell/phy-berlin-sata.c
@@ -32,7 +32,7 @@
 
 /* register 0x01 */
 #define REF_FREF_SEL_25		BIT(0)
-#define PHY_MODE_SATA		(0x0 << 5)
+#define PHY_BERLIN_MODE_SATA	(0x0 << 5)
 
 /* register 0x02 */
 #define USE_MAX_PLL_RATE	BIT(12)
@@ -102,7 +102,8 @@ static int phy_berlin_sata_power_on(struct phy *phy)
 
 	/* set PHY mode and ref freq to 25 MHz */
 	phy_berlin_sata_reg_setbits(ctrl_reg, priv->phy_base, 0x01,
-				    0x00ff, REF_FREF_SEL_25 | PHY_MODE_SATA);
+				    0x00ff,
+				    REF_FREF_SEL_25 | PHY_BERLIN_MODE_SATA);
 
 	/* set PHY up to 6 Gbps */
 	phy_berlin_sata_reg_setbits(ctrl_reg, priv->phy_base, 0x25,
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index e8e118d70fd7..3f350e2749fe 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -42,6 +42,7 @@ enum phy_mode {
 	PHY_MODE_PCIE,
 	PHY_MODE_ETHERNET,
 	PHY_MODE_MIPI_DPHY,
+	PHY_MODE_SATA
 };
 
 /**
-- 
2.20.1