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, 95 deletions

diff --git a/target/linux/layerscape/patches-5.4/819-uart-0001-tty-serial-lpuart-add-power-domain-support.patch b/target/linux/layerscape/patches-5.4/819-uart-0001-tty-serial-lpuart-add-power-domain-support.patch
deleted file mode 100644
index 120a14c3be..0000000000
--- a/target/linux/layerscape/patches-5.4/819-uart-0001-tty-serial-lpuart-add-power-domain-support.patch
+++ /dev/null
@@ -1,95 +0,0 @@
-From e8730a6bd02cf4f6a3e2d11585d91c0417ed92e5 Mon Sep 17 00:00:00 2001
-From: Fugang Duan <fugang.duan@nxp.com>
-Date: Wed, 10 Jul 2019 14:20:45 +0800
-Subject: [PATCH] tty: serial: lpuart: add power domain support
-
-lpuart dma mode depends on dma channel's power domain like:
-power-domains = <&pd IMX_SC_R_UART_1>,
-                <&pd IMX_SC_R_DMA_2_CH10>,
-                <&pd IMX_SC_R_DMA_2_CH11>;
-power-domain-names = "uart", "rxdma", "txdma";
-
-So define the multiple power domain for lpuart.
-
-Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
----
- drivers/tty/serial/fsl_lpuart.c | 54 +++++++++++++++++++++++++++++++++++++++++
- 1 file changed, 54 insertions(+)
-
---- a/drivers/tty/serial/fsl_lpuart.c
-+++ b/drivers/tty/serial/fsl_lpuart.c
-@@ -20,6 +20,8 @@
- #include <linux/of.h>
- #include <linux/of_device.h>
- #include <linux/of_dma.h>
-+#include <linux/pm_domain.h>
-+#include <linux/pm_runtime.h>
- #include <linux/serial_core.h>
- #include <linux/slab.h>
- #include <linux/tty_flip.h>
-@@ -2394,6 +2396,54 @@ static struct uart_driver lpuart_reg = {
- 	.cons		= LPUART_CONSOLE,
- };
- 
-+static int lpuart_attach_pd(struct device *dev)
-+{
-+	struct device *pd_uart;
-+	struct device *pd_txdma, *pd_rxdma;
-+	struct device_link *link;
-+
-+	if (dev->pm_domain)
-+		return 0;
-+
-+	pd_uart = dev_pm_domain_attach_by_name(dev, "uart");
-+	if (IS_ERR(pd_uart))
-+		return PTR_ERR(pd_uart);
-+	link = device_link_add(dev, pd_uart, DL_FLAG_STATELESS |
-+					     DL_FLAG_PM_RUNTIME |
-+					     DL_FLAG_RPM_ACTIVE);
-+	if (IS_ERR(link)) {
-+		dev_err(dev, "Failed to add device_link to uart pd: %ld\n",
-+			PTR_ERR(link));
-+		return PTR_ERR(link);
-+	}
-+
-+	pd_txdma = dev_pm_domain_attach_by_name(dev, "txdma");
-+	if (IS_ERR(pd_txdma))
-+		return PTR_ERR(pd_txdma);
-+	link = device_link_add(dev, pd_txdma, DL_FLAG_STATELESS |
-+					     DL_FLAG_PM_RUNTIME |
-+					     DL_FLAG_RPM_ACTIVE);
-+	if (IS_ERR(link)) {
-+		dev_err(dev, "Failed to add device_link to uart pd: %ld\n",
-+			PTR_ERR(link));
-+		return PTR_ERR(link);
-+	}
-+
-+	pd_rxdma = dev_pm_domain_attach_by_name(dev, "rxdma");
-+	if (IS_ERR(pd_rxdma))
-+		return PTR_ERR(pd_rxdma);
-+	link = device_link_add(dev, pd_rxdma, DL_FLAG_STATELESS |
-+					     DL_FLAG_PM_RUNTIME |
-+					     DL_FLAG_RPM_ACTIVE);
-+	if (IS_ERR(link)) {
-+		dev_err(dev, "Failed to add device_link to uart pd: %ld\n",
-+			PTR_ERR(link));
-+		return PTR_ERR(link);
-+	}
-+
-+	return 0;
-+}
-+
- static int lpuart_probe(struct platform_device *pdev)
- {
- 	const struct of_device_id *of_id = of_match_device(lpuart_dt_ids,
-@@ -2431,6 +2481,10 @@ static int lpuart_probe(struct platform_
- 
- 	sport->port.rs485_config = lpuart_config_rs485;
- 
-+	ret = lpuart_attach_pd(&pdev->dev);
-+	if (ret)
-+		return ret;
-+
- 	sport->ipg_clk = devm_clk_get(&pdev->dev, "ipg");
- 	if (IS_ERR(sport->ipg_clk)) {
- 		ret = PTR_ERR(sport->ipg_clk);