1 files changed, 0 insertions, 118 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0309-staging-fsl_ppfe-enable-hif-event-from-userspace.patch b/target/linux/layerscape/patches-5.4/701-net-0309-staging-fsl_ppfe-enable-hif-event-from-userspace.patch
deleted file mode 100644
index 785f316028..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0309-staging-fsl_ppfe-enable-hif-event-from-userspace.patch
+++ /dev/null
@@ -1,118 +0,0 @@
-From 0c072b46ecc8689be160bfdc750e95ad9879d706 Mon Sep 17 00:00:00 2001
-From: Akhil Goyal <akhil.goyal@nxp.com>
-Date: Thu, 5 Jul 2018 20:14:21 +0530
-Subject: [PATCH] staging: fsl_ppfe: enable hif event from userspace
-
-HIF interrupts are enabled using ioctl from user space,
-and epoll wait from user space wakes up when there is an HIF
-interrupt.
-
-Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
----
- drivers/staging/fsl_ppfe/pfe_cdev.c | 57 +++++++++++++++++++++++++++++++++++++
- drivers/staging/fsl_ppfe/pfe_cdev.h |  5 ++--
- 2 files changed, 60 insertions(+), 2 deletions(-)
-
---- a/drivers/staging/fsl_ppfe/pfe_cdev.c
-+++ b/drivers/staging/fsl_ppfe/pfe_cdev.c
-@@ -20,11 +20,18 @@
-  *  - used for interacting with the kernel layer for link status
-  */
- 
-+#include <linux/eventfd.h>
-+#include <linux/irqreturn.h>
-+#include <linux/io.h>
-+#include <asm/irq.h>
-+
- #include "pfe_cdev.h"
-+#include "pfe_mod.h"
- 
- static int pfe_majno;
- static struct class *pfe_char_class;
- static struct device *pfe_char_dev;
-+struct eventfd_ctx *g_trigger;
- 
- struct pfe_shared_info link_states[PFE_CDEV_ETH_COUNT];
- 
-@@ -80,10 +87,44 @@ static ssize_t pfe_cdev_write(struct fil
- 
- static int pfe_cdev_release(struct inode *inp, struct file *fp)
- {
-+	if (g_trigger) {
-+		free_irq(pfe->hif_irq, g_trigger);
-+		eventfd_ctx_put(g_trigger);
-+		g_trigger = NULL;
-+	}
-+
- 	pr_info("PFE_CDEV: Device successfully closed\n");
- 	return 0;
- }
- 
-+/*
-+ * hif_us_isr-
-+ * This ISR routine processes Rx/Tx done interrupts from the HIF hardware block
-+ */
-+static irqreturn_t hif_us_isr(int irq, void *arg)
-+{
-+	struct eventfd_ctx *trigger = (struct eventfd_ctx *)arg;
-+	int int_status;
-+	int int_enable_mask;
-+
-+	/*Read hif interrupt source register */
-+	int_status = readl_relaxed(HIF_INT_SRC);
-+	int_enable_mask = readl_relaxed(HIF_INT_ENABLE);
-+
-+	if ((int_status & HIF_INT) == 0)
-+		return IRQ_NONE;
-+
-+	if (int_status & HIF_RXPKT_INT) {
-+		int_enable_mask &= ~(HIF_RXPKT_INT);
-+		eventfd_signal(trigger, 1);
-+	}
-+
-+	/*Disable interrupts, they will be enabled after they are serviced */
-+	writel_relaxed(int_enable_mask, HIF_INT_ENABLE);
-+
-+	return IRQ_HANDLED;
-+}
-+
- static long pfe_cdev_ioctl(struct file *fp, unsigned int cmd,
- 			   unsigned long arg)
- {
-@@ -105,6 +146,22 @@ static long pfe_cdev_ioctl(struct file *
- 		pr_debug("Returning state=%d for ETH1\n", *argp);
- 		ret = 0;
- 		break;
-+	case PFE_CDEV_HIF_INTR_EN:
-+		/* Return success/failure */
-+		g_trigger = eventfd_ctx_fdget(*argp);
-+		if (IS_ERR(g_trigger))
-+			return PTR_ERR(g_trigger);
-+		ret = request_irq(pfe->hif_irq, hif_us_isr, 0, "pfe_hif",
-+				  g_trigger);
-+		if (ret) {
-+			pr_err("%s: failed to get the hif IRQ = %d\n",
-+			       __func__, pfe->hif_irq);
-+			eventfd_ctx_put(g_trigger);
-+			g_trigger = NULL;
-+		}
-+		pr_debug("request_irq for hif interrupt: %d\n", pfe->hif_irq);
-+		ret = 0;
-+		break;
- 	default:
- 		pr_info("Unsupport cmd (%d) for PFE CDEV.\n", cmd);
- 		break;
---- a/drivers/staging/fsl_ppfe/pfe_cdev.h
-+++ b/drivers/staging/fsl_ppfe/pfe_cdev.h
-@@ -43,8 +43,9 @@ struct pfe_shared_info {
- extern struct pfe_shared_info link_states[PFE_CDEV_ETH_COUNT];
- 
- /* IOCTL Commands */
--#define PFE_CDEV_ETH0_STATE_GET	0
--#define PFE_CDEV_ETH1_STATE_GET	1
-+#define PFE_CDEV_ETH0_STATE_GET		_IOR('R', 0, int)
-+#define PFE_CDEV_ETH1_STATE_GET		_IOR('R', 1, int)
-+#define PFE_CDEV_HIF_INTR_EN		_IOWR('R', 2, int)
- 
- int pfe_cdev_init(void);
- void pfe_cdev_exit(void);