[PATCH] drm/msm/dsi: Replace spin_lock_irqsave by spin_lock in hard IRQ

[Tian Tao]

It is redundant to do irqsave and irqrestore in hardIRQ context.

Signed-off-by: Tian Tao <tiant...@hisilicon.com>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c 
b/drivers/gpu/drm/msm/dsi/dsi_host.c
index b17ac6c..b2fb5c3 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1555,15 +1555,14 @@ static irqreturn_t dsi_host_irq(int irq, void *ptr)
 {
        struct msm_dsi_host *msm_host = ptr;
        u32 isr;
-       unsigned long flags;
 
        if (!msm_host->ctrl_base)
                return IRQ_HANDLED;
 
-       spin_lock_irqsave(&msm_host->intr_lock, flags);
+       spin_lock(&msm_host->intr_lock);
        isr = dsi_read(msm_host, REG_DSI_INTR_CTRL);
        dsi_write(msm_host, REG_DSI_INTR_CTRL, isr);
-       spin_unlock_irqrestore(&msm_host->intr_lock, flags);
+       spin_unlock(&msm_host->intr_lock);
 
        DBG("isr=0x%x, id=%d", isr, msm_host->id);
 
-- 
2.7.4