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authorYangbo Lu <yangbo.lu@nxp.com>2020-04-10 10:47:05 +0800
committerPetr Štetiar <ynezz@true.cz>2020-05-07 12:53:06 +0200
commitcddd4591404fb4c53dc0b3c0b15b942cdbed4356 (patch)
tree392c1179de46b0f804e3789edca19069b64e6b44 /target/linux/layerscape/patches-5.4/802-can-0017-can-flexcan-flexcan_mailbox_read-make-use-of-flexcan.patch
parentd1d2c0b5579ea4f69a42246c9318539d61ba1999 (diff)
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layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release which was tagged LSDK-20.04-V5.4. https://source.codeaurora.org/external/qoriq/qoriq-components/linux/ For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in LSDK, port the dts patches from 4.14. The patches are sorted into the following categories: 301-arch-xxxx 302-dts-xxxx 303-core-xxxx 701-net-xxxx 801-audio-xxxx 802-can-xxxx 803-clock-xxxx 804-crypto-xxxx 805-display-xxxx 806-dma-xxxx 807-gpio-xxxx 808-i2c-xxxx 809-jailhouse-xxxx 810-keys-xxxx 811-kvm-xxxx 812-pcie-xxxx 813-pm-xxxx 814-qe-xxxx 815-sata-xxxx 816-sdhc-xxxx 817-spi-xxxx 818-thermal-xxxx 819-uart-xxxx 820-usb-xxxx 821-vfio-xxxx Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Diffstat (limited to 'target/linux/layerscape/patches-5.4/802-can-0017-can-flexcan-flexcan_mailbox_read-make-use-of-flexcan.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/802-can-0017-can-flexcan-flexcan_mailbox_read-make-use-of-flexcan.patch37
1 files changed, 37 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/802-can-0017-can-flexcan-flexcan_mailbox_read-make-use-of-flexcan.patch b/target/linux/layerscape/patches-5.4/802-can-0017-can-flexcan-flexcan_mailbox_read-make-use-of-flexcan.patch
new file mode 100644
index 0000000000..37c2ed3cf9
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/802-can-0017-can-flexcan-flexcan_mailbox_read-make-use-of-flexcan.patch
@@ -0,0 +1,37 @@
+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
+@@ -884,15 +884,10 @@ 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