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net: dsa: sja1105: use sja1105_xfer_u32 for the reset procedure 

Using sja1105_xfer_buf results in a higher overhead and is harder to
read.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2021-05-24 16:14:19 +03:00 committed by David S. Miller
parent fd6f2c257b
commit f78a2517cf
1 changed files with 6 additions and 16 deletions
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22
drivers/net/dsa/sja1105/sja1105_spi.c
View File

@ -7,8 +7,6 @@
#include <linux/packing.h>
#include "sja1105.h"
#define SJA1105_SIZE_RESET_CMD 4
struct sja1105_chunk {
u8 *buf;
size_t len;
@ -179,28 +177,20 @@ static int sja1105et_reset_cmd(struct dsa_switch *ds)
{
struct sja1105_private *priv = ds->priv;
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_RESET_CMD] = {0};
const int size = SJA1105_SIZE_RESET_CMD;
u64 cold_rst = 1;
u32 cold_reset = BIT(3);
sja1105_pack(packed_buf, &cold_rst, 3, 3, size);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->rgu, packed_buf,
SJA1105_SIZE_RESET_CMD);
/* Cold reset */
return sja1105_xfer_u32(priv, SPI_WRITE, regs->rgu, &cold_reset, NULL);
}
static int sja1105pqrs_reset_cmd(struct dsa_switch *ds)
{
struct sja1105_private *priv = ds->priv;
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_RESET_CMD] = {0};
const int size = SJA1105_SIZE_RESET_CMD;
u64 cold_rst = 1;
u32 cold_reset = BIT(2);
sja1105_pack(packed_buf, &cold_rst, 2, 2, size);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->rgu, packed_buf,
SJA1105_SIZE_RESET_CMD);
/* Cold reset */
return sja1105_xfer_u32(priv, SPI_WRITE, regs->rgu, &cold_reset, NULL);
}
int sja1105_inhibit_tx(const struct sja1105_private *priv,