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);