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Date: Fri, 4 Dec 2020 09:23:10 +0800 From: Tian Tao <tiantao6@...ilicon.com> To: <airlied@...ux.ie>, <daniel@...ll.ch>, <tzimmermann@...e.de>, <kraxel@...hat.com>, <alexander.deucher@....com>, <tglx@...utronix.de>, <dri-devel@...ts.freedesktop.org>, <xinliang.liu@...aro.org>, <linux-kernel@...r.kernel.org> Subject: [PATCH] drm/msm/dsi: Replace spin_lock_irqsave by spin_lock in hard IRQ It is redundant to do irqsave and irqrestore in hardIRQ context. Signed-off-by: Tian Tao <tiantao6@...ilicon.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
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