lkml.org 
[lkml]   [2013]   [Jul]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH v5 4/7] cpufreq:exynos:Extend Exynos cpufreq driver to support boost framework
    On Tue, 16 Jul 2013 15:18:57 +0530 Viresh Kumar viresh.kumar@linaro.org
    wrote,
    > On 4 July 2013 14:20, Lukasz Majewski <l.majewski@samsung.com> wrote:
    > > The struct cpufreq_driver has been extended to embrace the
    > > information related to boost support.
    > >
    > > When "boost_mode" device tree attribute is defined for a platform,
    > > the boost_supported flag is set. Moreover boost related attributes
    > > were exported.
    > >
    > > Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
    > > Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
    >
    > Don't we need to mark any frequencies in the freq table with BOOST?
    > How?

    The (trivial) patch is already prepared to enable BOOST at cpufreq for
    Exynos4412. I will post it for v6. Sorry for not posting it earlier.

    The whole patch is as follow:

    static struct clk *cpu_clk;
    static struct clk *mout_core;
    static struct clk *sclk_mpll;
    static struct clk *mout_apll;

    static unsigned int exynos4x12_volt_table[] = {
    1350000, 1287500, 1250000, 1187500, 1137500, 1087500, 1037500,
    1000000, 987500, 975000, 950000, 925000, 900000, 900000
    };

    static struct cpufreq_frequency_table exynos4x12_freq_table[] = {
    - {L0, CPUFREQ_ENTRY_INVALID},
    + {CPUFREQ_BOOST_FREQ, 1500 * 1000},
    {L1, 1400 * 1000},
    {L2, 1300 * 1000},
    {L3, 1200 * 1000},
    {L4, 1100 * 1000},
    {L5, 1000 * 1000},
    {L6, 900 * 1000},
    {L7, 800 * 1000},
    {L8, 700 * 1000},
    {L9, 600 * 1000},
    {L10, 500 * 1000},
    {L11, 400 * 1000},
    {L12, 300 * 1000},



    --
    Best regards,

    Lukasz Majewski

    Samsung R&D Institute Poland (SRPOL) | Linux Platform Group


    \
     
     \ /
      Last update: 2013-07-16 13:41    [W:6.700 / U:0.132 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site