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can: at91_can: ECR register: convert to FIELD_GET()

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Use FIELD_GET() to access the individual fields of the ECR register.

Link: https://lore.kernel.org/all/20231005-at91_can-rx_offload-v2-5-9987d53600e0@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Marc Kleine-Budde
2023-04-18 16:35:54 +02:00
parent bd7854e839
commit abe1348753
1 changed files with 5 additions and 2 deletions
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7
drivers/net/can/at91_can.c
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@@ -72,6 +72,9 @@ enum at91_reg {
#define AT91_BR_BRP_MASK GENMASK(22, 16)
#define AT91_BR_SMP BIT(24)
#define AT91_ECR_REC_MASK GENMASK(8, 0)
#define AT91_ECR_TEC_MASK GENMASK(23, 16)
#define AT91_MMR_PRIO_SHIFT (16)
#define AT91_MID_MIDE BIT(29)
@@ -385,8 +388,8 @@ static int at91_get_berr_counter(const struct net_device *dev,
const struct at91_priv *priv = netdev_priv(dev);
u32 reg_ecr = at91_read(priv, AT91_ECR);
bec->rxerr = reg_ecr & 0xff;
bec->txerr = reg_ecr >> 16;
bec->rxerr = FIELD_GET(AT91_ECR_REC_MASK, reg_ecr);
bec->txerr = FIELD_GET(AT91_ECR_TEC_MASK, reg_ecr);
return 0;
}