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can: flexcan: flexcan_mailbox_read() make use of flexcan_write64() to mark the mailbox as read

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In the previous patch the function flexcan_write64() was introduced.

This patch replaces the open coded variant in flexcan_mailbox_read()
that marks a mailbox as read, by a single call to flexcan_write64().

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Marc Kleine-Budde 2019-03-01 16:27:59 +01:00
parent b87c28b726
commit b9468ad8ff
1 changed files with 3 additions and 8 deletions
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11
drivers/net/can/flexcan.c
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@ -883,15 +883,10 @@ static struct sk_buff *flexcan_mailbox_read(struct can_rx_offload *offload,
}
mark_as_read:
if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
/* Clear IRQ */
if (n < 32)
priv->write(BIT(n), &regs->iflag1);
else
priv->write(BIT(n - 32), &regs->iflag2);
} else {
if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)
flexcan_write64(priv, FLEXCAN_IFLAG_MB(n), &regs->iflag1);
else
priv->write(FLEXCAN_IFLAG_RX_FIFO_AVAILABLE, &regs->iflag1);
}
/* Read the Free Running Timer. It is optional but recommended
* to unlock Mailbox as soon as possible and make it available