usbpd:Fix the usbpd interrupt storm issue

Samsung usbpd interrupt is triggered by level
Instead of edge, the irq service handle shall
Disable the interrupt first and later enable
It after it got processed.

Change-Id: I36502860acded3ce81546fa0554a169ee81805b8
Signed-off-by: a17671 <a17671@motorola.com>
Reviewed-on: https://gerrit.mot.com/1275108
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Submit-Approved: Jira Key

diff --git a/drivers/ccic/s2mu106-usbpd.c b/drivers/ccic/s2mu106-usbpd.c
index 470e04ce6c7ad4a8c5afc83c68db4450c892f460..1fa48de7d266ce1c9d2544462279b6e5ddea1f63 100644 (file)
--- a/drivers/ccic/s2mu106-usbpd.c
+++ b/drivers/ccic/s2mu106-usbpd.c
@@ -2504,6 +2504,7 @@ static irqreturn_t s2mu106_irq_thread(int irq, void *data)
        int ret = 0;
        unsigned attach_status = 0, rid_status = 0;
 
+       disable_irq_nosync(irq);
        dev_info(dev, "%s\n", __func__);
 
        mutex_lock(&pd_data->accept_mutex);
@@ -2595,7 +2596,7 @@ hard_reset:
        mutex_unlock(&pdic_data->lpm_mutex);
 out:
        mutex_unlock(&pdic_data->_mutex);
-
+       enable_irq(irq);
        return IRQ_HANDLED;
 }