From d85e70122d0357ce714aace7ad23d9ae40dce587 Mon Sep 17 00:00:00 2001 From: Jianqun Xu Date: Fri, 19 Aug 2016 15:44:14 +0800 Subject: [PATCH] PM / devfreq: rockchip-dfi: disable irqs during accessing ddr monitor Change-Id: Ie4817a77fcb1283f37f41ab097f02ed7dc9cd18c Signed-off-by: Jianqun Xu --- drivers/devfreq/event/rockchip-dfi.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 9a88faaf8b27..2ce433bcf949 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -151,8 +151,11 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, { struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); int busier_ch; + unsigned long flags; + local_irq_save(flags); busier_ch = rockchip_dfi_get_busier_ch(edev); + local_irq_restore(flags); edata->load_count = info->ch_usage[busier_ch].access; edata->total_count = info->ch_usage[busier_ch].total;