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, 199 deletions

diff --git a/target/linux/layerscape/patches-5.4/819-uart-0009-MLK-17133-02-tty-serial-lpuart-add-runtime-pm-suppor.patch b/target/linux/layerscape/patches-5.4/819-uart-0009-MLK-17133-02-tty-serial-lpuart-add-runtime-pm-suppor.patch
deleted file mode 100644
index 5c0329583b..0000000000
--- a/target/linux/layerscape/patches-5.4/819-uart-0009-MLK-17133-02-tty-serial-lpuart-add-runtime-pm-suppor.patch
+++ /dev/null
@@ -1,199 +0,0 @@
-From ff3d8063eed907bed728a14e1519dc659036315a Mon Sep 17 00:00:00 2001
-From: Fugang Duan <fugang.duan@nxp.com>
-Date: Wed, 11 Sep 2019 16:36:48 +0800
-Subject: [PATCH] MLK-17133-02 tty: serial: lpuart: add runtime pm support
-
-Add runtime pm support to manage lpuart clock and its power domain
-to save power in system idle and system suspend stages.
-
-Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
-Reviewed-by: Robin Gong <yibin.gong@nxp.com>
----
- drivers/tty/serial/fsl_lpuart.c | 80 ++++++++++++++++++++++++++++++++++++-----
- 1 file changed, 72 insertions(+), 8 deletions(-)
-
---- a/drivers/tty/serial/fsl_lpuart.c
-+++ b/drivers/tty/serial/fsl_lpuart.c
-@@ -245,6 +245,7 @@
- 
- /* Rx DMA timeout in ms, which is used to calculate Rx ring buffer size */
- #define DMA_RX_TIMEOUT		(10)
-+#define UART_AUTOSUSPEND_TIMEOUT	3000
- 
- #define DRIVER_NAME	"fsl-lpuart"
- #define DEV_NAME	"ttyLP"
-@@ -859,6 +860,20 @@ static void lpuart32_start_tx(struct uar
- 	}
- }
- 
-+static void
-+lpuart_uart_pm(struct uart_port *port, unsigned int state, unsigned int oldstate)
-+{
-+	switch (state) {
-+	case UART_PM_STATE_OFF:
-+		pm_runtime_mark_last_busy(port->dev);
-+		pm_runtime_put_autosuspend(port->dev);
-+		break;
-+	default:
-+		pm_runtime_get_sync(port->dev);
-+		break;
-+	}
-+}
-+
- /* return TIOCSER_TEMT when transmitter is not busy */
- static unsigned int lpuart_tx_empty(struct uart_port *port)
- {
-@@ -2283,6 +2298,7 @@ static const struct uart_ops lpuart_pops
- 	.break_ctl	= lpuart_break_ctl,
- 	.startup	= lpuart_startup,
- 	.shutdown	= lpuart_shutdown,
-+	.pm		= lpuart_uart_pm,
- 	.set_termios	= lpuart_set_termios,
- 	.type		= lpuart_type,
- 	.request_port	= lpuart_request_port,
-@@ -2307,6 +2323,7 @@ static const struct uart_ops lpuart32_po
- 	.break_ctl	= lpuart32_break_ctl,
- 	.startup	= lpuart32_startup,
- 	.shutdown	= lpuart32_shutdown,
-+	.pm		= lpuart_uart_pm,
- 	.set_termios	= lpuart32_set_termios,
- 	.type		= lpuart_type,
- 	.request_port	= lpuart_request_port,
-@@ -2769,6 +2786,11 @@ static int lpuart_probe(struct platform_
- 	if (ret)
- 		goto failed_irq_request;
- 
-+	pm_runtime_use_autosuspend(&pdev->dev);
-+	pm_runtime_set_autosuspend_delay(&pdev->dev, UART_AUTOSUSPEND_TIMEOUT);
-+	pm_runtime_set_active(&pdev->dev);
-+	pm_runtime_enable(&pdev->dev);
-+
- 	ret = uart_add_one_port(&lpuart_reg, &sport->port);
- 	if (ret)
- 		goto failed_attach_port;
-@@ -2803,6 +2825,9 @@ static int lpuart_probe(struct platform_
- failed_reset:
- 	uart_remove_one_port(&lpuart_reg, &sport->port);
- failed_attach_port:
-+	pm_runtime_disable(&pdev->dev);
-+	pm_runtime_set_suspended(&pdev->dev);
-+	pm_runtime_dont_use_autosuspend(&pdev->dev);
- failed_irq_request:
- 	lpuart_disable_clks(sport);
- failed_clock_enable:
-@@ -2829,15 +2854,41 @@ static int lpuart_remove(struct platform
- 	if (sport->dma_rx_chan)
- 		dma_release_channel(sport->dma_rx_chan);
- 
-+	pm_runtime_disable(&pdev->dev);
-+	pm_runtime_set_suspended(&pdev->dev);
-+	pm_runtime_dont_use_autosuspend(&pdev->dev);
- 	return 0;
- }
- 
- #ifdef CONFIG_PM_SLEEP
-+static int lpuart_runtime_suspend(struct device *dev)
-+{
-+	struct platform_device *pdev = to_platform_device(dev);
-+	struct lpuart_port *sport = platform_get_drvdata(pdev);
-+
-+	lpuart_disable_clks(sport);
-+
-+	return 0;
-+};
-+
-+static int lpuart_runtime_resume(struct device *dev)
-+{
-+	struct platform_device *pdev = to_platform_device(dev);
-+	struct lpuart_port *sport = platform_get_drvdata(pdev);
-+
-+	return lpuart_enable_clks(sport);
-+};
-+
- static int lpuart_suspend(struct device *dev)
- {
- 	struct lpuart_port *sport = dev_get_drvdata(dev);
- 	unsigned long temp;
- 	bool irq_wake;
-+	int ret;
-+
-+	ret = clk_prepare_enable(sport->ipg_clk);
-+	if (ret)
-+		return ret;
- 
- 	if (lpuart_is_32(sport)) {
- 		/* disable Rx/Tx and interrupts */
-@@ -2851,10 +2902,14 @@ static int lpuart_suspend(struct device
- 		writeb(temp, sport->port.membase + UARTCR2);
- 	}
- 
-+	clk_disable_unprepare(sport->ipg_clk);
-+
- 	uart_suspend_port(&lpuart_reg, &sport->port);
- 
- 	/* uart_suspend_port() might set wakeup flag */
- 	irq_wake = irqd_is_wakeup_set(irq_get_irq_data(sport->port.irq));
-+	if (sport->port.suspended && !irq_wake)
-+		return 0;
- 
- 	if (sport->lpuart_dma_rx_use) {
- 		/*
-@@ -2885,9 +2940,6 @@ static int lpuart_suspend(struct device
- 		dmaengine_terminate_all(sport->dma_tx_chan);
- 	}
- 
--	if (sport->port.suspended && !irq_wake)
--		lpuart_disable_clks(sport);
--
- 	return 0;
- }
- 
-@@ -2895,9 +2947,11 @@ static int lpuart_resume(struct device *
- {
- 	struct lpuart_port *sport = dev_get_drvdata(dev);
- 	bool irq_wake = irqd_is_wakeup_set(irq_get_irq_data(sport->port.irq));
-+	int ret;
- 
--	if (sport->port.suspended && !irq_wake)
--		lpuart_enable_clks(sport);
-+	ret = clk_prepare_enable(sport->ipg_clk);
-+	if (ret)
-+		return ret;
- 
- 	if (lpuart_is_32(sport))
- 		lpuart32_setup_watermark_enable(sport);
-@@ -2918,13 +2972,23 @@ static int lpuart_resume(struct device *
- 	if (lpuart_is_32(sport))
- 		lpuart32_configure(sport);
- 
-+	clk_disable_unprepare(sport->ipg_clk);
-+
- 	uart_resume_port(&lpuart_reg, &sport->port);
- 
- 	return 0;
- }
--#endif
-+static const struct dev_pm_ops lpuart_pm_ops = {
-+	SET_RUNTIME_PM_OPS(lpuart_runtime_suspend,
-+			   lpuart_runtime_resume, NULL)
-+	SET_SYSTEM_SLEEP_PM_OPS(lpuart_suspend, lpuart_resume)
-+};
-+#define SERIAL_LPUART_PM_OPS	(&lpuart_pm_ops)
- 
--static SIMPLE_DEV_PM_OPS(lpuart_pm_ops, lpuart_suspend, lpuart_resume);
-+#else /* !CONFIG_PM_SLEEP */
-+
-+#define SERIAL_LPUART_PM_OPS	NULL
-+#endif
- 
- static struct platform_driver lpuart_driver = {
- 	.probe		= lpuart_probe,
-@@ -2932,7 +2996,7 @@ static struct platform_driver lpuart_dri
- 	.driver		= {
- 		.name	= "fsl-lpuart",
- 		.of_match_table = lpuart_dt_ids,
--		.pm	= &lpuart_pm_ops,
-+		.pm	= SERIAL_LPUART_PM_OPS,
- 	},
- };
-