linux-kernel - [PATCH] intel_pstate: Add get_scaling cpu

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Message-Id: <1437468073-9668-1-git-send-email-lukasz.anaczkowski@intel.com>
Date:	Tue, 21 Jul 2015 10:41:13 +0200
From:	Lukasz Anaczkowski <lukasz.anaczkowski@...el.com>
To:	rjw@...ysocki.net, viresh.kumar@...aro.org
Cc:	kristen@...ux.intel.com, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, yishimat@...hat.com,
	Lukasz Anaczkowski <lukasz.anaczkowski@...el.com>,
	Dasaratharaman Chandramouli 
	<dasaratharaman.chandramouli@...el.com>
Subject: [PATCH] intel_pstate: Add get_scaling cpu_defaults param to Knights Landing

Scaling for Knights Landing is same as the default scaling (100000).
When Knigts Landing support was added to the pstate driver, this
parameter was omitted resulting in a kernel panic during boot.

Reported-by: Yasuaki Ishimatsu <yishimat@...hat.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@...el.com>
Signed-off-by: Lukasz Anaczkowski <lukasz.anaczkowski@...el.com>
---
 drivers/cpufreq/intel_pstate.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 15ada47..fcb929e 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -681,6 +681,7 @@ static struct cpu_defaults knl_params = {
 		.get_max = core_get_max_pstate,
 		.get_min = core_get_min_pstate,
 		.get_turbo = knl_get_turbo_pstate,
+		.get_scaling = core_get_scaling,
 		.set = core_set_pstate,
 	},
 };
-- 
1.8.3.1

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