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net: dsa: microchip: Replace ksz9477_wait_vlan_ctrl_ready polling with regmap

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Regmap provides polling function to poll for bits in a register. This
function is another reimplementation of polling for bit being clear in
a register. Replace this with regmap polling function. Moreover, inline
the function parameters, as the function is never called with any other
parameter values than this one.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Tristram Ha <Tristram.Ha@microchip.com>
Cc: Woojung Huh <Woojung.Huh@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marek Vasut 2019-06-27 23:55:53 +02:00 committed by David S. Miller
parent 1c1eb5806a
commit 0f9c36e36b
1 changed files with 8 additions and 18 deletions
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26
drivers/net/dsa/microchip/ksz9477.c
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@ -89,22 +89,12 @@ static void ksz9477_port_cfg32(struct ksz_device *dev, int port, int offset,
bits, set ? bits : 0);
}
static int ksz9477_wait_vlan_ctrl_ready(struct ksz_device *dev, u32 waiton,
int timeout)
static int ksz9477_wait_vlan_ctrl_ready(struct ksz_device *dev)
{
u8 data;
unsigned int val;
do {
ksz_read8(dev, REG_SW_VLAN_CTRL, &data);
if (!(data & waiton))
break;
usleep_range(1, 10);
} while (timeout-- > 0);
if (timeout <= 0)
return -ETIMEDOUT;
return 0;
return regmap_read_poll_timeout(dev->regmap[0], REG_SW_VLAN_CTRL,
val, !(val & VLAN_START), 10, 1000);
}
static int ksz9477_get_vlan_table(struct ksz_device *dev, u16 vid,
@ -118,8 +108,8 @@ static int ksz9477_get_vlan_table(struct ksz_device *dev, u16 vid,
ksz_write8(dev, REG_SW_VLAN_CTRL, VLAN_READ | VLAN_START);
/* wait to be cleared */
ret = ksz9477_wait_vlan_ctrl_ready(dev, VLAN_START, 1000);
if (ret < 0) {
ret = ksz9477_wait_vlan_ctrl_ready(dev);
if (ret) {
dev_dbg(dev->dev, "Failed to read vlan table\n");
goto exit;
}
@ -151,8 +141,8 @@ static int ksz9477_set_vlan_table(struct ksz_device *dev, u16 vid,
ksz_write8(dev, REG_SW_VLAN_CTRL, VLAN_START | VLAN_WRITE);
/* wait to be cleared */
ret = ksz9477_wait_vlan_ctrl_ready(dev, VLAN_START, 1000);
if (ret < 0) {
ret = ksz9477_wait_vlan_ctrl_ready(dev);
if (ret) {
dev_dbg(dev->dev, "Failed to write vlan table\n");
goto exit;
}