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 966108dca7cf9b6a626a96042950acfa0d624136..b2ca82e50c05ef854e59c764c008a780082e76e1 100644 (file)
--- a/drivers/ccic/s2mu106-usbpd.c
+++ b/drivers/ccic/s2mu106-usbpd.c
@@ -2469,6 +2469,7 @@ 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);
@@ -2560,7 +2561,7 @@ hard_reset:
        mutex_unlock(&pdic_data->lpm_mutex);
 out:
        mutex_unlock(&pdic_data->_mutex);
-
+       enable_irq(irq);
        return IRQ_HANDLED;
 }