linux-kernel - [PATCH 0/2] fix some problems for cpufreq

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Message-ID: <1417142619-14548-1-git-send-email-wangweidong1@huawei.com>
Date:	Fri, 28 Nov 2014 10:43:37 +0800
From:	Wang Weidong <wangweidong1@...wei.com>
To:	<rjw@...ysocki.net>, <viresh.kumar@...aro.org>
CC:	<wangweidong1@...wei.com>, <linux-pm@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <guohanjun@...wei.com>
Subject: [PATCH 0/2] fix some problems for cpufreq

Hi Rafael and Viresh

Sorry to trouble you again. As for:
"acpi-cpufreq: get the cur_freq from acpi_processor_performance states"
I do it again, and add the other patch.

patch #1: acpi-cpufreq: make the freq_table store the same freq value

I think it can work. The set of available states which come
from acpi won't change. Just like the power would be remove,
the acpi driver will do that:
call
 ->acpi_processor_ppc_has_changed
 ->cpufreq_update_policy
 ->acpi_ppc_notifier_block.notifier_call
   ->acpi_processor_ppc_notifier
   ->cpufreq_verify_within_limits
The progress will change the policy's min_freq and max_freq
while it won't change the set of states(freq_tables).

patch #2: cpufreq: show the real avail freqs with the freq_table

when the min_freq and max_freq change, we should sync the availble
freqs.

Regards,
Wang

Wang Weidong (2):
  acpi-cpufreq: make the freq_table store the same freq value
  cpufreq: show the real avail freqs with the freq_table

 drivers/cpufreq/acpi-cpufreq.c | 2 +-
 drivers/cpufreq/freq_table.c   | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

-- 
1.7.12


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