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can: at91_can: MSR Register: convert to FIELD_PREP()

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Use FIELD_PREP() to access the individual fields of the MSR register.

Link: https://lore.kernel.org/all/20231005-at91_can-rx_offload-v2-8-9987d53600e0@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 90aa9a250c
commit bdfff1433c
1 changed files with 3 additions and 1 deletions
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4
drivers/net/can/at91_can.c
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@@ -83,6 +83,8 @@ enum at91_reg {
#define AT91_MID_MIDVA_MASK GENMASK(28, 18)
#define AT91_MID_MIDE BIT(29)
#define AT91_MSR_MTIMESTAMP_MASK GENMASK(15, 0)
#define AT91_MSR_MDLC_MASK GENMASK(19, 16)
#define AT91_MSR_MRTR BIT(20)
#define AT91_MSR_MABT BIT(22)
#define AT91_MSR_MRDY BIT(23)
@@ -599,7 +601,7 @@ static void at91_read_mb(struct net_device *dev, unsigned int mb,
cf->can_id = FIELD_GET(AT91_MID_MIDVA_MASK, reg_mid);
reg_msr = at91_read(priv, AT91_MSR(mb));
cf->len = can_cc_dlc2len((reg_msr >> 16) & 0xf);
cf->len = can_cc_dlc2len(FIELD_GET(AT91_MSR_MDLC_MASK, reg_msr));
if (reg_msr & AT91_MSR_MRTR) {
cf->can_id |= CAN_RTR_FLAG;