Hi Viresh,
On 2/26/2018 3:34 PM, Viresh Kumar wrote:
> On 26-02-18, 15:23, Sricharan R wrote:
>> From: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
>
> Is this email id still valid ?
>
Yes. codeaurora id should exist.
>> +static int __init qcom_cpufreq_populate_opps(struct nvmem_cell *pvs_nvmem,
>> + struct opp_table **tbl)
>> +{
>> + int speed = 0, pvs = 0, pvs_ver = 0, cpu;
>> + struct device *cpu_dev;
>> + u8 *buf;
>> + size_t len;
>> + char pvs_name[] = "speedXX-pvsXX-vXX";
>> +
>> + buf = nvmem_cell_read(pvs_nvmem, &len);
>> + if (len == 4)
>> + get_krait_bin_format_a(&speed, &pvs, &pvs_ver, pvs_nvmem, buf);
>> + else if (len == 8)
>> + get_krait_bin_format_b(&speed, &pvs, &pvs_ver, pvs_nvmem, buf);
>> + else
>> + pr_warn("Unable to read nvmem data. Defaulting to 0!\n");
>> +
>> + snprintf(pvs_name, sizeof(pvs_name), "speed%d-pvs%d-v%d",
>> + speed, pvs, pvs_ver);
>> +
>> + for (cpu = 0; cpu < num_possible_cpus(); cpu++) {
>> + cpu_dev = get_cpu_device(cpu);
>> + if (!cpu_dev)
>> + return -ENODEV;
>> +
>> + tbl[cpu] = dev_pm_opp_set_prop_name(cpu_dev, pvs_name);
>> +
>> + if (IS_ERR(tbl[cpu])) {
>> + tbl[cpu] = 0;
>> + pr_warn("failed to add OPP name %s\n", pvs_name);
>> + return PTR_ERR(tbl[cpu]);
>
> You just set tbl[cpu] to 0 :)
>
my bad. will fix it.
>> + }
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static int __init qcom_cpufreq_driver_init(void)
>> +{
>> + struct platform_device *pdev;
>> + struct device *cpu_dev;
>> + struct device_node *np;
>> + struct nvmem_cell *pvs_nvmem;
>> + struct opp_table *tbl[NR_CPUS] = { NULL };
>> + int ret, cpu = 0;
>> +
>> + cpu_dev = get_cpu_device(0);
>> + if (!cpu_dev)
>> + return -ENODEV;
>> +
>> + np = dev_pm_opp_of_get_opp_desc_node(cpu_dev);
>> + if (!np)
>> + return -ENOENT;
>> +
>> + if (!of_device_is_compatible(np, "operating-points-v2-krait-cpu")) {
>> + ret = -ENOENT;
>> + goto free_np;
>> + }
>> +
>> + pvs_nvmem = of_nvmem_cell_get(np, NULL);
>> + if (IS_ERR(pvs_nvmem)) {
>> + dev_err(cpu_dev, "Could not get nvmem cell\n");
>> + ret = PTR_ERR(pvs_nvmem);
>> + goto free_np;
>> + }
>> +
>> + ret = qcom_cpufreq_populate_opps(pvs_nvmem, tbl);
>> + if (ret)
>> + goto free_opp_name;
>> +
>> + pdev = platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
>> + if (IS_ERR(pdev)) {
>> + ret = PTR_ERR(pdev);
>> + goto free_opp_name;
>> + }
>> +
>> + of_node_put(np);
>> +
>> + return 0;
>> +
>> +free_opp_name:
>> + while (tbl[cpu]) {
>> + dev_pm_opp_put_prop_name(tbl[cpu]);
>> + cpu++;
>> + }
>> +
>> +free_np:
>> + of_node_put(np);
>> +
>> + return ret;
>> +}
>> +late_initcall(qcom_cpufreq_driver_init);
>> +
>> +MODULE_DESCRIPTION("Qualcomm CPUfreq driver");
>> +MODULE_AUTHOR("Stephen Boyd <sboyd@xxxxxxxxxxxxxx>");
>> +MODULE_LICENSE("GPL v2");
>
> Everything else is fine. Fix above issue and you can add
>
> Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
>
Thanks. Will fix and repost.
Regards,
Sricharan
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