[PATCH 1/5] net: dsa: microchip: Replace ad-hoc polling with regmap

[Marek Vasut]

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

Signed-off-by: Marek Vasut <ma...@denx.de>
Cc: Andrew Lunn <and...@lunn.ch>
Cc: Florian Fainelli <f.faine...@gmail.com>
Cc: Tristram Ha <tristram...@microchip.com>
Cc: Woojung Huh <woojung....@microchip.com>
---
 drivers/net/dsa/microchip/ksz9477.c    | 14 +++++---------
 drivers/net/dsa/microchip/ksz_common.h | 14 --------------
 2 files changed, 5 insertions(+), 23 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz9477.c 
b/drivers/net/dsa/microchip/ksz9477.c
index 8f13dcc05a10..ece25f38e02a 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -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;
        }
diff --git a/drivers/net/dsa/microchip/ksz_common.h 
b/drivers/net/dsa/microchip/ksz_common.h
index 745318424f71..ee7096d8af07 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -119,20 +119,6 @@ static inline void ksz_pwrite32(struct ksz_device *dev, 
int port, int offset,
        ksz_write32(dev, dev->dev_ops->get_port_addr(port, offset), data);
 }
 
-struct ksz_poll_ctx {
-       struct ksz_device *dev;
-       int port;
-       int offset;
-};
-
-static inline u32 ksz_pread32_poll(struct ksz_poll_ctx *ctx)
-{
-       u32 data;
-
-       ksz_pread32(ctx->dev, ctx->port, ctx->offset, &data);
-       return data;
-}
-
 /* Regmap tables generation */
 #define KSZ_SPI_OP_RD          3
 #define KSZ_SPI_OP_WR          2
-- 
2.20.1