audio: swr-mstr-ctrl: Fix unbalanced IRQ condition in swrm_runtime_su…

…spend()

Add irq request check condition before enabling swrm interrupt
This will make sure to only enabled interrupt request when it is in disabled state.

This Fixes:
W         : ------------[ cut here ]------------
W         : Unbalanced enable for IRQ 502
W         : WARNING: CPU: 4 PID: 81 at kernel/irq/manage.c:621 enable_irq+0x98/0xf0
I         : Modules linked in:
I         : CPU: 4 PID: 81 Comm: kworker/4:1 Tainted: G S                4.19.197-IMMENSITY-g09a924c384cb #1
I Hardware name: Qualcomm Technologies, Inc. xiaomi alioth (DT)
I Workqueue: pm pm_runtime_work
I pstate  : 60c00085 (nZCv daIf +PAN +UAO)
I pc      : enable_irq+0x98/0xf0
I lr      : enable_irq+0x98/0xf0
I sp      : ffffff800885bbb0
I         : x29: ffffff800885bbc0 x28: ffffffa6fea0db38
I         : x27: 0000000000000002 x26: 0000000000000000
I         : x25: ffffffd1991ef37d x24: 0000000000000000
I         : x23: ffffffd1991edca1 x22: ffffffd199555410
I         : x21: ffffffd1991ef248 x20: 00000000000001f6
I         : x19: ffffffd18cc7b400 x18: ffffffd1b4e9f048
I         : x17: 0000000000000000 x16: 0000000000000000
I         : x15: 0000000000000086 x14: 0000000000000030
I         : x13: 0000000000049754 x12: 0000000000000000
I         : x11: 0000000000000000 x10: 0000000000000007
I         : x9 : 060ca0f25e42ae00 x8 : 060ca0f25e42ae00
I         : x7 : 0000000000000000 x6 : ffffffa6fed3f8e5
I         : x5 : 00000000001b68dc x4 : 000000000000000e
I         : x3 : 0000000000000032 x2 : 0000000000000007
I         : x1 : 0000000000000007 x0 : 000000000000001d
I Call trace:
I         : enable_irq+0x98/0xf0
I         : swrm_runtime_suspend+0x390/0x47c
I         : pm_generic_runtime_suspend+0x28/0x3c
I         : __rpm_callback+0x12c/0x218
I         : rpm_suspend+0x420/0x7cc
I         : pm_runtime_work+0x98/0xa8
I         : process_one_work+0x228/0x3f4
I         : worker_thread+0x264/0x4b0
I         : kthread+0x13c/0x158
I         : ret_from_fork+0x10/0x18
W         : ---[ end trace 56c9cc0df5ea202b ]---

Change-Id: Ic539bfc8d595faf530361d32e0be4ce9009fec08
Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com>
Signed-off-by: Adam W. Willis <return.of.octobot@gmail.com>
Signed-off-by: LibXZR <i@xzr.moe>
Signed-off-by: Alexander Winkowski <dereference23@outlook.com>

techpack/audio/4.0/soc/swr-mstr-ctrl.c

@@ -2997,6 +2997,7 @@ static int swrm_runtime_suspend(struct device *dev)
 	struct swr_master *mstr = &swrm->master;
 	struct swr_device *swr_dev;
 	int current_state = 0;
+	struct irq_data *irq_data = NULL;
 
 	trace_printk("%s: pm_runtime: suspend state: %d\n",
 		__func__, swrm->state);
@@ -3101,7 +3102,9 @@ static int swrm_runtime_suspend(struct device *dev)
 
 		if (swrm->clk_stop_mode0_supp) {
 			if (swrm->wake_irq > 0) {
-				enable_irq(swrm->wake_irq);
+				irq_data = irq_get_irq_data(swrm->wake_irq);
+				if (irq_data && irqd_irq_disabled(irq_data))
+					enable_irq(swrm->wake_irq);
 			} else if (swrm->ipc_wakeup) {
 				msm_aud_evt_blocking_notifier_call_chain(
 					SWR_WAKE_IRQ_REGISTER, (void *)swrm);

techpack/audio/soc/swr-mstr-ctrl.c

@@ -2214,6 +2214,7 @@ static int swrm_runtime_suspend(struct device *dev)
 	struct swr_master *mstr = &swrm->master;
 	struct swr_device *swr_dev;
 	int current_state = 0;
+	struct irq_data *irq_data = NULL;
 
 	dev_dbg(dev, "%s: pm_runtime: suspend state: %d\n",
 		__func__, swrm->state);
@@ -2253,7 +2254,9 @@ static int swrm_runtime_suspend(struct device *dev)
 
 		if (swrm->clk_stop_mode0_supp) {
 			if (swrm->wake_irq > 0) {
-				enable_irq(swrm->wake_irq);
+				irq_data = irq_get_irq_data(swrm->wake_irq);
+				if (irq_data && irqd_irq_disabled(irq_data))
+					enable_irq(swrm->wake_irq);
 			} else if (swrm->ipc_wakeup) {
 				msm_aud_evt_blocking_notifier_call_chain(
 					SWR_WAKE_IRQ_REGISTER, (void *)swrm);