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, 34 deletions

diff --git a/target/linux/layerscape/patches-5.4/808-i2c-0007-i2c-imx-add-workaround-for-erratum-ERR010027.patch b/target/linux/layerscape/patches-5.4/808-i2c-0007-i2c-imx-add-workaround-for-erratum-ERR010027.patch
deleted file mode 100644
index a22f9766eb..0000000000
--- a/target/linux/layerscape/patches-5.4/808-i2c-0007-i2c-imx-add-workaround-for-erratum-ERR010027.patch
+++ /dev/null
@@ -1,34 +0,0 @@
-From 8e7e594b685f3fe44cd4803e3a4634bed897c2f7 Mon Sep 17 00:00:00 2001
-From: Zhang Ying-22455 <ying.zhang22455@nxp.com>
-Date: Fri, 14 Apr 2017 17:03:03 +0800
-Subject: [PATCH] i2c: imx: add workaround for erratum ERR010027
-
-ERR010027: Attempting a start cycle while the bus is busy may
-generate a short clock pulse.
-
-Software must ensure that the I2C BUS is idle by checking the
-bus busy before switching to master mode and attempting a Start
-cycle.
-
-Signed-off-by: Zhang Ying-22455 <ying.zhang22455@nxp.com>
----
- drivers/i2c/busses/i2c-imx.c | 8 ++++++++
- 1 file changed, 8 insertions(+)
-
---- a/drivers/i2c/busses/i2c-imx.c
-+++ b/drivers/i2c/busses/i2c-imx.c
-@@ -968,6 +968,14 @@ static int i2c_imx_xfer(struct i2c_adapt
- 		enable_runtime_pm = true;
- 	}
- 
-+	/*
-+	 * workround for ERR010027: ensure that the I2C BUS is idle
-+	 * before switching to master mode and attempting a Start cycle
-+	 */
-+	result =  i2c_imx_bus_busy(i2c_imx, 0);
-+	if (result)
-+		goto out;
-+
- 	result = pm_runtime_get_sync(i2c_imx->adapter.dev.parent);
- 	if (result < 0)
- 		goto out;