On 25/05/18 05:05, Viresh Kumar wrote: > On 25-05-18, 07:00, Ilia Lin wrote: >> >> >> On May 25, 2018 6:54:12 AM GMT+03:00, Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote: >>> On 24-05-18, 18:03, Ilia Lin wrote: >>>> +static int __init qcom_cpufreq_kryo_init(void) >>>> +{ >>>> + struct device_node *np; >>>> + struct device *cpu_dev; >>>> + int ret; >>>> + >>>> + cpu_dev = get_cpu_device(0); >>>> + if (NULL == cpu_dev) >>>> + ret = -ENODEV; >>>> + >>>> + np = dev_pm_opp_of_get_opp_desc_node(cpu_dev); >>>> + if (IS_ERR(np)) >>>> + return PTR_ERR(np); >>>> + >>>> + ret = of_device_is_compatible(np, "operating-points-v2-kryo-cpu"); >>>> + of_node_put(np); >>>> + if (!ret) >>>> + return -ENOENT; >>>> + >>> >>> I hate the fact that it is taking so long to get done with this. But >>> can't you >>> just check machine compatibility instead of this complicated setup to >>> check OPP >>> node ? Like: >>> >>> if (!of_device_is_compatible("qcom,apq8096") && >>> !of_device_is_compatible("qcom,msm8996")) >>> return; >> >> I have to check the "operating-points-v2-kryo-cpu" anyway, so I moved it from probe to the init. > > Okay, leave it as is then. Don't send anything yet and wait for Sudeep to > respond. > I have already mentioned that I can't suggest since I don't have much knowledge on QCOM PM. I see lots of patches flying around these days with multiple people doing same things in different ways. That's why I suggested Ilia to check with Taniya or Saravana or SBoyd to see what's the best thing to do in this context. I don't prefer using OPP compatible and would go with machine compatibility as you suggested. But I am fine with OPP, just wanted to make sure it won't clash with anything else. -- Regards, Sudeep -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html