openwrt/target/linux/layerscape/patches-5.4/802-can-0017-can-flexcan-flexcan_mailbox_read-make-use-of-flexcan.patch
John Audia 4e39949dd1 kernel: bump 5.4 to 5.4.80
Removed since could be reverse-applied by quilt and found to be
included upstream:
  backport-5.4/789-net-usb-qmi_wwan-Set-DTR-quirk-for-MR400.patch

All modifications made by update_kernel.sh

Build system: x86_64
Build-tested: ipq806x/R7800, bcm27xx/bcm2711, ath79/generic
Run-tested: ipq806x/R7800

No dmesg regressions, everything functional

Signed-off-by: John Audia <graysky@archlinux.us>
Tested-by: Curtis Deptuck <curtdept@me.com> [x86_64 build/run]
2020-11-26 11:17:55 +01:00

38 lines
1.3 KiB
Diff

From 6340760d0671e92b15ff92b7eda41bbdd9702437 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Fri, 1 Mar 2019 16:27:59 +0100
Subject: [PATCH] can: flexcan: flexcan_mailbox_read() make use of
flexcan_write64() to mark the mailbox as read
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>
---
drivers/net/can/flexcan.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -885,15 +885,10 @@ static struct sk_buff *flexcan_mailbox_r
}
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