linux-kernel - [PATCH] thermal/drivers/hisi: disable multi alarm support for hi3660 SoC

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Date:   Wed, 18 Oct 2017 17:15:50 +0800
From:   Tao Wang <kevin.wangtao@...ilicon.com>
To:     <daniel.lezcano@...aro.org>, <edubezval@...il.com>
CC:     <rui.zhang@...el.com>, <linux-pm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <sunzhaosheng@...ilicon.com>,
        <gengyanping@...ilicon.com>,
        Kevin Wangtao <kevin.wangtao@...aro.org>
Subject: [PATCH] thermal/drivers/hisi: disable multi alarm support for hi3660 SoC

From: Kevin Wangtao <kevin.wangtao@...aro.org>

multi alarm interrupt forced a re-trigger of power_allocator_throttle
which changes the PID's actual sampling rate, this isn't optimal for
IPA, it is best to disable multi alarm support now and sort out this
issue later.

Signed-off-by: Kevin Wangtao <kevin.wangtao@...aro.org>
---
 drivers/thermal/hisi_thermal.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index 133238a..3b74c12 100644
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -360,7 +360,6 @@ static int hi3660_thermal_enable_sensor(struct hisi_thermal_data *data)
 
 	/* set interrupt threshold */
 	value = hi3660_thermal_temp_to_step(sensor->thres_temp[0]);
-	value |= hi3660_thermal_temp_to_step(sensor->thres_temp[1]) << 10;
 	hi3660_thermal_alarm_set(data->regs, sensor->id, value);
 
 	/* enable interrupt */
-- 
2.8.1