From 10d1ba23b04e12c91e23fba3aeaa0d033d2df1e4 Mon Sep 17 00:00:00 2001
From: Maulik Shah <quic_mkshah@quicinc.com>
Date: Wed, 3 May 2023 12:12:47 +0530
Subject: [PATCH] irqchip: qcom-mpm: Do not break s2idle suspend

Do not mark MPM as wake irq. Break s2idle suspend when MPM irq
is pending.

Change-Id: Ia455c589fdadcaa3be6084a68990887a2d4c3517
Signed-off-by: Maulik Shah <quic_mkshah@quicinc.com>
---
 drivers/irqchip/qcom-mpm.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/irqchip/qcom-mpm.c b/drivers/irqchip/qcom-mpm.c
index 76c5d332e527..53afae539ee2 100644
--- a/drivers/irqchip/qcom-mpm.c
+++ b/drivers/irqchip/qcom-mpm.c
@@ -20,6 +20,7 @@
 #include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/spinlock.h>
+#include <linux/suspend.h>
 #include <linux/of_irq.h>
 #include <linux/err.h>
 #include <linux/platform_device.h>
@@ -472,6 +473,9 @@ static irqreturn_t msm_mpm_irq(int irq, void *dev_id)
 		pending = msm_mpm_read(MPM_REG_STATUS, i);
 		pending &= (unsigned long)value[i];
 
+		if (pending)
+			pm_system_wakeup();
+
 		trace_mpm_wakeup_pending_irqs(i, pending);
 		for_each_set_bit(k, &pending, 32) {
 			mpm_irq = 32 * i + k;
@@ -529,22 +533,15 @@ static int msm_mpm_init(struct device_node *node)
 	}
 	dev->ipc_irq = irq;
 
-	ret = request_irq(dev->ipc_irq, msm_mpm_irq, IRQF_TRIGGER_RISING, "mpm", msm_mpm_irq);
+	ret = request_irq(dev->ipc_irq, msm_mpm_irq,
+			  IRQF_TRIGGER_RISING | IRQF_NO_SUSPEND, "mpm",
+			  msm_mpm_irq);
 	if (ret) {
 		pr_err("request_irq failed errno: %d\n", ret);
 		goto ipc_irq_err;
 	}
 
-	ret = irq_set_irq_wake(dev->ipc_irq, 1);
-	if (ret) {
-		pr_err("failed to set wakeup irq %lu: %d\n",
-			dev->ipc_irq, ret);
-		goto set_wake_irq_err;
-	}
-
 	return 0;
-set_wake_irq_err:
-	free_irq(dev->ipc_irq, msm_mpm_irq);
 ipc_irq_err:
 	iounmap(dev->mpm_ipc_reg);
 ipc_reg_err: