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net: dsa: microchip: Replace ad-hoc polling with regmap

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Regmap provides polling function to poll for bits in a register,
use in instead of reimplementing it.

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 23:55:52 +02:00
committed by David S. Miller
parent d7ee287827
commit 1c1eb5806a
2 changed files with 5 additions and 23 deletions
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14
drivers/net/dsa/microchip/ksz9477.c
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@@ -263,12 +263,8 @@ static int ksz9477_reset_switch(struct ksz_device *dev)
static void ksz9477_r_mib_cnt(struct ksz_device *dev, int port, u16 addr,
u64 *cnt)
{
struct ksz_poll_ctx ctx = {
.dev = dev,
.port = port,
.offset = REG_PORT_MIB_CTRL_STAT__4,
};
struct ksz_port *p = &dev->ports[port];
unsigned int val;
u32 data;
int ret;
@@ -278,11 +274,11 @@ static void ksz9477_r_mib_cnt(struct ksz_device *dev, int port, u16 addr,
data |= (addr << MIB_COUNTER_INDEX_S);
ksz_pwrite32(dev, port, REG_PORT_MIB_CTRL_STAT__4, data);
ret = readx_poll_timeout(ksz_pread32_poll, &ctx, data,
!(data & MIB_COUNTER_READ), 10, 1000);
ret = regmap_read_poll_timeout(dev->regmap[2],
PORT_CTRL_ADDR(port, REG_PORT_MIB_CTRL_STAT__4),
val, !(val & MIB_COUNTER_READ), 10, 1000);
/* failed to read MIB. get out of loop */
if (ret < 0) {
if (ret) {
dev_dbg(dev->dev, "Failed to get MIB\n");
return;
}