target/linux/brcm2708/patches-4.14/950-0293-net-phy-use-unlocked-accessors-for-indirect-MMD-acce.patch

   1 From 2d490ea00f141384d57c7e18e44b34e94e572b26 Mon Sep 17 00:00:00 2001
   2 From: Russell King <rmk+kernel@armlinux.org.uk>
   3 Date: Tue, 2 Jan 2018 10:58:32 +0000
   4 Subject: [PATCH 293/454] net: phy: use unlocked accessors for indirect MMD
   5  accesses
   6
   7 commit 1b2dea2e6a6e3399e88784d57aea80f4fd5e8956 upstream.
   8
   9 Use unlocked accessors for indirect MMD accesses to clause 22 PHYs.
  10 This permits tracing of these accesses.
  11
  12 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
  13 Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
  14 Signed-off-by: David S. Miller <davem@davemloft.net>
  15 ---
  16  drivers/net/phy/phy-core.c | 11 ++++++-----
  17  1 file changed, 6 insertions(+), 5 deletions(-)
  18
  19 --- a/drivers/net/phy/phy-core.c
  20 +++ b/drivers/net/phy/phy-core.c
  21 @@ -193,13 +193,14 @@ static void mmd_phy_indirect(struct mii_
  22                              u16 regnum)
  23  {
  24         /* Write the desired MMD Devad */
  25 -       bus->write(bus, phy_addr, MII_MMD_CTRL, devad);
  26 +       __mdiobus_write(bus, phy_addr, MII_MMD_CTRL, devad);
  27
  28         /* Write the desired MMD register address */
  29 -       bus->write(bus, phy_addr, MII_MMD_DATA, regnum);
  30 +       __mdiobus_write(bus, phy_addr, MII_MMD_DATA, regnum);
  31
  32         /* Select the Function : DATA with no post increment */
  33 -       bus->write(bus, phy_addr, MII_MMD_CTRL, devad | MII_MMD_CTRL_NOINCR);
  34 +       __mdiobus_write(bus, phy_addr, MII_MMD_CTRL,
  35 +                       devad | MII_MMD_CTRL_NOINCR);
  36  }
  37
  38  /**
  39 @@ -232,7 +233,7 @@ int phy_read_mmd(struct phy_device *phyd
  40                 mmd_phy_indirect(bus, phy_addr, devad, regnum);
  41
  42                 /* Read the content of the MMD's selected register */
  43 -               val = bus->read(bus, phy_addr, MII_MMD_DATA);
  44 +               val = __mdiobus_read(bus, phy_addr, MII_MMD_DATA);
  45                 mutex_unlock(&bus->mdio_lock);
  46         }
  47         return val;
  48 @@ -271,7 +272,7 @@ int phy_write_mmd(struct phy_device *phy
  49                 mmd_phy_indirect(bus, phy_addr, devad, regnum);
  50
  51                 /* Write the data into MMD's selected register */
  52 -               bus->write(bus, phy_addr, MII_MMD_DATA, val);
  53 +               __mdiobus_write(bus, phy_addr, MII_MMD_DATA, val);
  54                 mutex_unlock(&bus->mdio_lock);
  55
  56                 ret = 0;