From: Vivien Didelot Date: Mon, 15 Aug 2016 21:19:02 +0000 (-0400) Subject: net: dsa: mv88e6xxx: use the new PHY API X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9c93829c014f1a18a4aac2bf15b79ff4325a0912;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git net: dsa: mv88e6xxx: use the new PHY API This commit replaces every MDIO direct or indirect access with the new generic mv88e6xxx_phy_* routines. This allows us to get rid of the mv88e6xxx_mdio_{read,write}_{,in}direct and {_,}mv88e6xxx_mdio_page_{read,write} functions. Signed-off-by: Vivien Didelot Signed-off-by: David S. Miller --- diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index faa07513c9ff..a230fcba5b64 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -372,22 +372,6 @@ static int _mv88e6xxx_reg_write(struct mv88e6xxx_chip *chip, int addr, return mv88e6xxx_write(chip, addr, reg, val); } -static int mv88e6xxx_mdio_read_direct(struct mv88e6xxx_chip *chip, - int addr, int regnum) -{ - if (addr >= 0) - return _mv88e6xxx_reg_read(chip, addr, regnum); - return 0xffff; -} - -static int mv88e6xxx_mdio_write_direct(struct mv88e6xxx_chip *chip, - int addr, int regnum, u16 val) -{ - if (addr >= 0) - return _mv88e6xxx_reg_write(chip, addr, regnum, val); - return 0; -} - static int mv88e6xxx_ppu_disable(struct mv88e6xxx_chip *chip) { int ret; @@ -942,87 +926,63 @@ static int _mv88e6xxx_atu_wait(struct mv88e6xxx_chip *chip) GLOBAL_ATU_OP_BUSY); } -static int mv88e6xxx_g2_smi_phy_read(struct mv88e6xxx_chip *chip, int addr, - int reg, u16 *val); -static int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip, int addr, - int reg, u16 val); - -static int mv88e6xxx_mdio_read_indirect(struct mv88e6xxx_chip *chip, - int addr, int regnum) -{ - u16 val; - int err; - - err = mv88e6xxx_g2_smi_phy_read(chip, addr, regnum, &val); - if (err) - return err; - - return val; -} - -static int mv88e6xxx_mdio_write_indirect(struct mv88e6xxx_chip *chip, - int addr, int regnum, u16 val) -{ - return mv88e6xxx_g2_smi_phy_write(chip, addr, regnum, val); -} - static int mv88e6xxx_get_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e) { struct mv88e6xxx_chip *chip = ds_to_priv(ds); - int reg; + u16 reg; + int err; if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_EEE)) return -EOPNOTSUPP; mutex_lock(&chip->reg_lock); - reg = mv88e6xxx_mdio_read_indirect(chip, port, 16); - if (reg < 0) + err = mv88e6xxx_phy_read(chip, port, 16, ®); + if (err) goto out; e->eee_enabled = !!(reg & 0x0200); e->tx_lpi_enabled = !!(reg & 0x0100); - reg = _mv88e6xxx_reg_read(chip, REG_PORT(port), PORT_STATUS); - if (reg < 0) + err = mv88e6xxx_read(chip, REG_PORT(port), PORT_STATUS, ®); + if (err) goto out; e->eee_active = !!(reg & PORT_STATUS_EEE); - reg = 0; - out: mutex_unlock(&chip->reg_lock); - return reg; + + return err; } static int mv88e6xxx_set_eee(struct dsa_switch *ds, int port, struct phy_device *phydev, struct ethtool_eee *e) { struct mv88e6xxx_chip *chip = ds_to_priv(ds); - int reg; - int ret; + u16 reg; + int err; if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_EEE)) return -EOPNOTSUPP; mutex_lock(&chip->reg_lock); - ret = mv88e6xxx_mdio_read_indirect(chip, port, 16); - if (ret < 0) + err = mv88e6xxx_phy_read(chip, port, 16, ®); + if (err) goto out; - reg = ret & ~0x0300; + reg &= ~0x0300; if (e->eee_enabled) reg |= 0x0200; if (e->tx_lpi_enabled) reg |= 0x0100; - ret = mv88e6xxx_mdio_write_indirect(chip, port, 16, reg); + err = mv88e6xxx_phy_write(chip, port, 16, reg); out: mutex_unlock(&chip->reg_lock); - return ret; + return err; } static int _mv88e6xxx_atu_cmd(struct mv88e6xxx_chip *chip, u16 fid, u16 cmd) @@ -2382,38 +2342,6 @@ static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port) mutex_unlock(&chip->reg_lock); } -static int _mv88e6xxx_mdio_page_write(struct mv88e6xxx_chip *chip, - int port, int page, int reg, int val) -{ - int ret; - - ret = mv88e6xxx_mdio_write_indirect(chip, port, 0x16, page); - if (ret < 0) - goto restore_page_0; - - ret = mv88e6xxx_mdio_write_indirect(chip, port, reg, val); -restore_page_0: - mv88e6xxx_mdio_write_indirect(chip, port, 0x16, 0x0); - - return ret; -} - -static int _mv88e6xxx_mdio_page_read(struct mv88e6xxx_chip *chip, - int port, int page, int reg) -{ - int ret; - - ret = mv88e6xxx_mdio_write_indirect(chip, port, 0x16, page); - if (ret < 0) - goto restore_page_0; - - ret = mv88e6xxx_mdio_read_indirect(chip, port, reg); -restore_page_0: - mv88e6xxx_mdio_write_indirect(chip, port, 0x16, 0x0); - - return ret; -} - static int mv88e6xxx_switch_reset(struct mv88e6xxx_chip *chip) { bool ppu_active = mv88e6xxx_has(chip, MV88E6XXX_FLAG_PPU_ACTIVE); @@ -3322,32 +3250,6 @@ static int mv88e6xxx_set_addr(struct dsa_switch *ds, u8 *addr) return err; } -static int mv88e6xxx_mdio_page_read(struct dsa_switch *ds, int port, int page, - int reg) -{ - struct mv88e6xxx_chip *chip = ds_to_priv(ds); - int ret; - - mutex_lock(&chip->reg_lock); - ret = _mv88e6xxx_mdio_page_read(chip, port, page, reg); - mutex_unlock(&chip->reg_lock); - - return ret; -} - -static int mv88e6xxx_mdio_page_write(struct dsa_switch *ds, int port, int page, - int reg, int val) -{ - struct mv88e6xxx_chip *chip = ds_to_priv(ds); - int ret; - - mutex_lock(&chip->reg_lock); - ret = _mv88e6xxx_mdio_page_write(chip, port, page, reg, val); - mutex_unlock(&chip->reg_lock); - - return ret; -} - static int mv88e6xxx_mdio_read(struct mii_bus *bus, int phy, int reg) { struct mv88e6xxx_chip *chip = bus->priv; @@ -3441,44 +3343,42 @@ static void mv88e6xxx_mdio_unregister(struct mv88e6xxx_chip *chip) static int mv88e61xx_get_temp(struct dsa_switch *ds, int *temp) { struct mv88e6xxx_chip *chip = ds_to_priv(ds); + u16 val; int ret; - int val; *temp = 0; mutex_lock(&chip->reg_lock); - ret = mv88e6xxx_mdio_write_direct(chip, 0x0, 0x16, 0x6); + ret = mv88e6xxx_phy_write(chip, 0x0, 0x16, 0x6); if (ret < 0) goto error; /* Enable temperature sensor */ - ret = mv88e6xxx_mdio_read_direct(chip, 0x0, 0x1a); + ret = mv88e6xxx_phy_read(chip, 0x0, 0x1a, &val); if (ret < 0) goto error; - ret = mv88e6xxx_mdio_write_direct(chip, 0x0, 0x1a, ret | (1 << 5)); + ret = mv88e6xxx_phy_write(chip, 0x0, 0x1a, val | (1 << 5)); if (ret < 0) goto error; /* Wait for temperature to stabilize */ usleep_range(10000, 12000); - val = mv88e6xxx_mdio_read_direct(chip, 0x0, 0x1a); - if (val < 0) { - ret = val; + ret = mv88e6xxx_phy_read(chip, 0x0, 0x1a, &val); + if (ret < 0) goto error; - } /* Disable temperature sensor */ - ret = mv88e6xxx_mdio_write_direct(chip, 0x0, 0x1a, ret & ~(1 << 5)); + ret = mv88e6xxx_phy_write(chip, 0x0, 0x1a, val & ~(1 << 5)); if (ret < 0) goto error; *temp = ((val & 0x1f) - 5) * 5; error: - mv88e6xxx_mdio_write_direct(chip, 0x0, 0x16, 0x0); + mv88e6xxx_phy_write(chip, 0x0, 0x16, 0x0); mutex_unlock(&chip->reg_lock); return ret; } @@ -3487,15 +3387,18 @@ static int mv88e63xx_get_temp(struct dsa_switch *ds, int *temp) { struct mv88e6xxx_chip *chip = ds_to_priv(ds); int phy = mv88e6xxx_6320_family(chip) ? 3 : 0; + u16 val; int ret; *temp = 0; - ret = mv88e6xxx_mdio_page_read(ds, phy, 6, 27); + mutex_lock(&chip->reg_lock); + ret = mv88e6xxx_phy_page_read(chip, phy, 6, 27, &val); + mutex_unlock(&chip->reg_lock); if (ret < 0) return ret; - *temp = (ret & 0xff) - 25; + *temp = (val & 0xff) - 25; return 0; } @@ -3517,6 +3420,7 @@ static int mv88e6xxx_get_temp_limit(struct dsa_switch *ds, int *temp) { struct mv88e6xxx_chip *chip = ds_to_priv(ds); int phy = mv88e6xxx_6320_family(chip) ? 3 : 0; + u16 val; int ret; if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_TEMP_LIMIT)) @@ -3524,11 +3428,13 @@ static int mv88e6xxx_get_temp_limit(struct dsa_switch *ds, int *temp) *temp = 0; - ret = mv88e6xxx_mdio_page_read(ds, phy, 6, 26); + mutex_lock(&chip->reg_lock); + ret = mv88e6xxx_phy_page_read(chip, phy, 6, 26, &val); + mutex_unlock(&chip->reg_lock); if (ret < 0) return ret; - *temp = (((ret >> 8) & 0x1f) * 5) - 25; + *temp = (((val >> 8) & 0x1f) * 5) - 25; return 0; } @@ -3537,23 +3443,30 @@ static int mv88e6xxx_set_temp_limit(struct dsa_switch *ds, int temp) { struct mv88e6xxx_chip *chip = ds_to_priv(ds); int phy = mv88e6xxx_6320_family(chip) ? 3 : 0; - int ret; + u16 val; + int err; if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_TEMP_LIMIT)) return -EOPNOTSUPP; - ret = mv88e6xxx_mdio_page_read(ds, phy, 6, 26); - if (ret < 0) - return ret; + mutex_lock(&chip->reg_lock); + err = mv88e6xxx_phy_page_read(chip, phy, 6, 26, &val); + if (err) + goto unlock; temp = clamp_val(DIV_ROUND_CLOSEST(temp, 5) + 5, 0, 0x1f); - return mv88e6xxx_mdio_page_write(ds, phy, 6, 26, - (ret & 0xe0ff) | (temp << 8)); + err = mv88e6xxx_phy_page_write(chip, phy, 6, 26, + (val & 0xe0ff) | (temp << 8)); +unlock: + mutex_unlock(&chip->reg_lock); + + return err; } static int mv88e6xxx_get_temp_alarm(struct dsa_switch *ds, bool *alarm) { struct mv88e6xxx_chip *chip = ds_to_priv(ds); int phy = mv88e6xxx_6320_family(chip) ? 3 : 0; + u16 val; int ret; if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_TEMP_LIMIT)) @@ -3561,11 +3474,13 @@ static int mv88e6xxx_get_temp_alarm(struct dsa_switch *ds, bool *alarm) *alarm = false; - ret = mv88e6xxx_mdio_page_read(ds, phy, 6, 26); + mutex_lock(&chip->reg_lock); + ret = mv88e6xxx_phy_page_read(chip, phy, 6, 26, &val); + mutex_unlock(&chip->reg_lock); if (ret < 0) return ret; - *alarm = !!(ret & 0x40); + *alarm = !!(val & 0x40); return 0; }