diff options
Diffstat (limited to 'drivers/cpufreq/qcom-cpufreq-nvmem.c')
-rw-r--r-- | drivers/cpufreq/qcom-cpufreq-nvmem.c | 136 |
1 files changed, 42 insertions, 94 deletions
diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c index d1744b5d9619..a577586b23be 100644 --- a/drivers/cpufreq/qcom-cpufreq-nvmem.c +++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c @@ -55,9 +55,7 @@ struct qcom_cpufreq_match_data { }; struct qcom_cpufreq_drv { - struct opp_table **names_opp_tables; - struct opp_table **hw_opp_tables; - struct opp_table **genpd_opp_tables; + int *opp_tokens; u32 versions; const struct qcom_cpufreq_match_data *data; }; @@ -66,7 +64,7 @@ static struct platform_device *cpufreq_dt_pdev, *cpufreq_pdev; static void get_krait_bin_format_a(struct device *cpu_dev, int *speed, int *pvs, int *pvs_ver, - struct nvmem_cell *pvs_nvmem, u8 *buf) + u8 *buf) { u32 pte_efuse; @@ -97,7 +95,7 @@ static void get_krait_bin_format_a(struct device *cpu_dev, static void get_krait_bin_format_b(struct device *cpu_dev, int *speed, int *pvs, int *pvs_ver, - struct nvmem_cell *pvs_nvmem, u8 *buf) + u8 *buf) { u32 pte_efuse, redundant_sel; @@ -130,7 +128,7 @@ static void get_krait_bin_format_b(struct device *cpu_dev, } /* Check PVS_BLOW_STATUS */ - pte_efuse = *(((u32 *)buf) + 4); + pte_efuse = *(((u32 *)buf) + 1); pte_efuse &= BIT(21); if (pte_efuse) { dev_dbg(cpu_dev, "PVS bin: %d\n", *pvs); @@ -215,6 +213,7 @@ static int qcom_cpufreq_krait_name_version(struct device *cpu_dev, int speed = 0, pvs = 0, pvs_ver = 0; u8 *speedbin; size_t len; + int ret = 0; speedbin = nvmem_cell_read(speedbin_nvmem, &len); @@ -224,15 +223,16 @@ static int qcom_cpufreq_krait_name_version(struct device *cpu_dev, switch (len) { case 4: get_krait_bin_format_a(cpu_dev, &speed, &pvs, &pvs_ver, - speedbin_nvmem, speedbin); + speedbin); break; case 8: get_krait_bin_format_b(cpu_dev, &speed, &pvs, &pvs_ver, - speedbin_nvmem, speedbin); + speedbin); break; default: dev_err(cpu_dev, "Unable to read nvmem data. Defaulting to 0!\n"); - return -ENODEV; + ret = -ENODEV; + goto len_error; } snprintf(*pvs_name, sizeof("speedXX-pvsXX-vXX"), "speed%d-pvs%d-v%d", @@ -240,8 +240,9 @@ static int qcom_cpufreq_krait_name_version(struct device *cpu_dev, drv->versions = (1 << speed); +len_error: kfree(speedbin); - return 0; + return ret; } static const struct qcom_cpufreq_match_data match_data_kryo = { @@ -264,7 +265,8 @@ static int qcom_cpufreq_probe(struct platform_device *pdev) struct nvmem_cell *speedbin_nvmem; struct device_node *np; struct device *cpu_dev; - char *pvs_name = "speedXX-pvsXX-vXX"; + char pvs_name_buffer[] = "speedXX-pvsXX-vXX"; + char *pvs_name = pvs_name_buffer; unsigned cpu; const struct of_device_id *match; int ret; @@ -297,11 +299,8 @@ static int qcom_cpufreq_probe(struct platform_device *pdev) if (drv->data->get_version) { speedbin_nvmem = of_nvmem_cell_get(np, NULL); if (IS_ERR(speedbin_nvmem)) { - if (PTR_ERR(speedbin_nvmem) != -EPROBE_DEFER) - dev_err(cpu_dev, - "Could not get nvmem cell: %ld\n", - PTR_ERR(speedbin_nvmem)); - ret = PTR_ERR(speedbin_nvmem); + ret = dev_err_probe(cpu_dev, PTR_ERR(speedbin_nvmem), + "Could not get nvmem cell\n"); goto free_drv; } @@ -315,72 +314,43 @@ static int qcom_cpufreq_probe(struct platform_device *pdev) } of_node_put(np); - drv->names_opp_tables = kcalloc(num_possible_cpus(), - sizeof(*drv->names_opp_tables), + drv->opp_tokens = kcalloc(num_possible_cpus(), sizeof(*drv->opp_tokens), GFP_KERNEL); - if (!drv->names_opp_tables) { + if (!drv->opp_tokens) { ret = -ENOMEM; goto free_drv; } - drv->hw_opp_tables = kcalloc(num_possible_cpus(), - sizeof(*drv->hw_opp_tables), - GFP_KERNEL); - if (!drv->hw_opp_tables) { - ret = -ENOMEM; - goto free_opp_names; - } - - drv->genpd_opp_tables = kcalloc(num_possible_cpus(), - sizeof(*drv->genpd_opp_tables), - GFP_KERNEL); - if (!drv->genpd_opp_tables) { - ret = -ENOMEM; - goto free_opp; - } for_each_possible_cpu(cpu) { + struct dev_pm_opp_config config = { + .supported_hw = NULL, + }; + cpu_dev = get_cpu_device(cpu); if (NULL == cpu_dev) { ret = -ENODEV; - goto free_genpd_opp; + goto free_opp; } if (drv->data->get_version) { + config.supported_hw = &drv->versions; + config.supported_hw_count = 1; - if (pvs_name) { - drv->names_opp_tables[cpu] = dev_pm_opp_set_prop_name( - cpu_dev, - pvs_name); - if (IS_ERR(drv->names_opp_tables[cpu])) { - ret = PTR_ERR(drv->names_opp_tables[cpu]); - dev_err(cpu_dev, "Failed to add OPP name %s\n", - pvs_name); - goto free_opp; - } - } - - drv->hw_opp_tables[cpu] = dev_pm_opp_set_supported_hw( - cpu_dev, &drv->versions, 1); - if (IS_ERR(drv->hw_opp_tables[cpu])) { - ret = PTR_ERR(drv->hw_opp_tables[cpu]); - dev_err(cpu_dev, - "Failed to set supported hardware\n"); - goto free_genpd_opp; - } + if (pvs_name) + config.prop_name = pvs_name; } if (drv->data->genpd_names) { - drv->genpd_opp_tables[cpu] = - dev_pm_opp_attach_genpd(cpu_dev, - drv->data->genpd_names, - NULL); - if (IS_ERR(drv->genpd_opp_tables[cpu])) { - ret = PTR_ERR(drv->genpd_opp_tables[cpu]); - if (ret != -EPROBE_DEFER) - dev_err(cpu_dev, - "Could not attach to pm_domain: %d\n", - ret); - goto free_genpd_opp; + config.genpd_names = drv->data->genpd_names; + config.virt_devs = NULL; + } + + if (config.supported_hw || config.genpd_names) { + drv->opp_tokens[cpu] = dev_pm_opp_set_config(cpu_dev, &config); + if (drv->opp_tokens[cpu] < 0) { + ret = drv->opp_tokens[cpu]; + dev_err(cpu_dev, "Failed to set OPP config\n"); + goto free_opp; } } } @@ -395,27 +365,10 @@ static int qcom_cpufreq_probe(struct platform_device *pdev) ret = PTR_ERR(cpufreq_dt_pdev); dev_err(cpu_dev, "Failed to register platform device\n"); -free_genpd_opp: - for_each_possible_cpu(cpu) { - if (IS_ERR(drv->genpd_opp_tables[cpu])) - break; - dev_pm_opp_detach_genpd(drv->genpd_opp_tables[cpu]); - } - kfree(drv->genpd_opp_tables); free_opp: - for_each_possible_cpu(cpu) { - if (IS_ERR(drv->names_opp_tables[cpu])) - break; - dev_pm_opp_put_prop_name(drv->names_opp_tables[cpu]); - } - for_each_possible_cpu(cpu) { - if (IS_ERR(drv->hw_opp_tables[cpu])) - break; - dev_pm_opp_put_supported_hw(drv->hw_opp_tables[cpu]); - } - kfree(drv->hw_opp_tables); -free_opp_names: - kfree(drv->names_opp_tables); + for_each_possible_cpu(cpu) + dev_pm_opp_clear_config(drv->opp_tokens[cpu]); + kfree(drv->opp_tokens); free_drv: kfree(drv); @@ -429,15 +382,10 @@ static int qcom_cpufreq_remove(struct platform_device *pdev) platform_device_unregister(cpufreq_dt_pdev); - for_each_possible_cpu(cpu) { - dev_pm_opp_put_supported_hw(drv->names_opp_tables[cpu]); - dev_pm_opp_put_supported_hw(drv->hw_opp_tables[cpu]); - dev_pm_opp_detach_genpd(drv->genpd_opp_tables[cpu]); - } + for_each_possible_cpu(cpu) + dev_pm_opp_clear_config(drv->opp_tokens[cpu]); - kfree(drv->names_opp_tables); - kfree(drv->hw_opp_tables); - kfree(drv->genpd_opp_tables); + kfree(drv->opp_tokens); kfree(drv); return 0; |