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>

1 files changed, 95 insertions, 0 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
new file mode 100644
index 0000000000..bad4128bf5
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/819-uart-0001-tty-serial-lpuart-add-power-domain-support.patch
@@ -0,0 +1,95 @@
+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>
+@@ -2369,6 +2371,54 @@ 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,
+@@ -2406,6 +2456,10 @@ 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);