27 lines
897 B
Diff
27 lines
897 B
Diff
From d85e70122d0357ce714aace7ad23d9ae40dce587 Mon Sep 17 00:00:00 2001
|
|
From: Jianqun Xu <jay.xu@rock-chips.com>
|
|
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 <jay.xu@rock-chips.com>
|
|
---
|
|
drivers/devfreq/event/rockchip-dfi.c | 3 +++
|
|
1 file changed, 3 insertions(+)
|
|
|
|
--- 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
|
|
{
|
|
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;
|