On 26-02-18, 15:23, Sricharan R wrote:
> From: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
Is this email id still valid ?
> +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 :)
> + }
> + }
> +
> + 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>
--
viresh
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