kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 38 deletions

diff --git a/target/linux/layerscape/patches-5.4/802-can-0008-can-flexcan-flexcan_irq_state-only-read-timestamp-if.patch b/target/linux/layerscape/patches-5.4/802-can-0008-can-flexcan-flexcan_irq_state-only-read-timestamp-if.patch
deleted file mode 100644
index 2f839fcfc0..0000000000
--- a/target/linux/layerscape/patches-5.4/802-can-0008-can-flexcan-flexcan_irq_state-only-read-timestamp-if.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From 1a92e5a9109963e2491eec111b84b35b4e2adc8f Mon Sep 17 00:00:00 2001
-From: Marc Kleine-Budde <mkl@pengutronix.de>
-Date: Wed, 9 Oct 2019 15:15:37 +0200
-Subject: [PATCH] can: flexcan: flexcan_irq_state(): only read timestamp if
- needed
-
-The function flexcan_irq_state() checks the controller for CAN state
-changes and pushes a skb with the new state and a timestamp into the
-rx-offload framework.
-
-This patch optimizes the function by only reading the timestamp, if a
-state change is detected.
-
-Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
----
- drivers/net/can/flexcan.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
---- a/drivers/net/can/flexcan.c
-+++ b/drivers/net/can/flexcan.c
-@@ -751,8 +751,6 @@ static void flexcan_irq_state(struct net
- 	u32 timestamp;
- 	int err;
- 
--	timestamp = priv->read(&regs->timer) << 16;
--
- 	flt = reg_esr & FLEXCAN_ESR_FLT_CONF_MASK;
- 	if (likely(flt == FLEXCAN_ESR_FLT_CONF_ACTIVE)) {
- 		tx_state = unlikely(reg_esr & FLEXCAN_ESR_TX_WRN) ?
-@@ -772,6 +770,8 @@ static void flexcan_irq_state(struct net
- 	if (likely(new_state == priv->can.state))
- 		return;
- 
-+	timestamp = priv->read(&regs->timer) << 16;
-+
- 	skb = alloc_can_err_skb(dev, &cf);
- 	if (unlikely(!skb))
- 		return;