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Wysocki" , Georgi Djakov Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, Christian Marangi , Stephan Gerhold Subject: [PATCH v2 12/26] cpufreq: qcom-nvmem: provide separate configuration data for apq8064 Date: Sun, 25 Jun 2023 23:25:33 +0300 Message-Id: <20230625202547.174647-13-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230625202547.174647-1-dmitry.baryshkov@linaro.org> References: <20230625202547.174647-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org APQ8064 can scale core voltage according to the frequency needs. Rather than reusing the A/B format multiplexer, use a simple fuse parsing function and configure required regulator. Signed-off-by: Dmitry Baryshkov --- drivers/cpufreq/qcom-cpufreq-nvmem.c | 49 ++++++++++++++++++++++++++-- 1 file changed, 47 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c index 2a591fafc090..9cbc37ce91a8 100644 --- a/drivers/cpufreq/qcom-cpufreq-nvmem.c +++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include @@ -39,6 +40,7 @@ struct qcom_cpufreq_match_data { char **pvs_name, struct qcom_cpufreq_drv *drv); const char **genpd_names; + const char * const *regulator_names; }; struct qcom_cpufreq_drv { @@ -204,6 +206,34 @@ static int qcom_cpufreq_krait_name_version(struct device *cpu_dev, return ret; } +static int qcom_cpufreq_apq8064_name_version(struct device *cpu_dev, + struct nvmem_cell *speedbin_nvmem, + char **pvs_name, + struct qcom_cpufreq_drv *drv) +{ + int speed = 0, pvs = 0; + u8 *speedbin; + size_t len; + int ret = 0; + + speedbin = nvmem_cell_read(speedbin_nvmem, &len); + if (IS_ERR(speedbin)) + return PTR_ERR(speedbin); + + if (len != 4) + return -EINVAL; + + get_krait_bin_format_a(cpu_dev, &speed, &pvs, speedbin); + + snprintf(*pvs_name, sizeof("speedXX-pvsXX"), "speed%d-pvs%d", + speed, pvs); + + drv->versions = (1 << speed); + + kfree(speedbin); + return ret; +} + static const struct qcom_cpufreq_match_data match_data_kryo = { .get_version = qcom_cpufreq_kryo_name_version, }; @@ -218,6 +248,16 @@ static const struct qcom_cpufreq_match_data match_data_qcs404 = { .genpd_names = qcs404_genpd_names, }; +static const char * apq8064_regulator_names[] = { + "vdd-core", + NULL +}; + +static const struct qcom_cpufreq_match_data match_data_apq8064 = { + .get_version = qcom_cpufreq_apq8064_name_version, + .regulator_names = apq8064_regulator_names, +}; + static int qcom_cpufreq_probe(struct platform_device *pdev) { struct qcom_cpufreq_drv *drv; @@ -305,7 +345,12 @@ static int qcom_cpufreq_probe(struct platform_device *pdev) config.virt_devs = NULL; } - if (config.supported_hw || config.genpd_names) { + if (drv->data->regulator_names) + config.regulator_names = drv->data->regulator_names; + + if (config.supported_hw || + config.genpd_names || + config.regulator_names) { drv->opp_tokens[cpu] = dev_pm_opp_set_config(cpu_dev, &config); if (drv->opp_tokens[cpu] < 0) { ret = drv->opp_tokens[cpu]; @@ -364,7 +409,7 @@ static const struct of_device_id qcom_cpufreq_match_list[] __initconst = { { .compatible = "qcom,msm8996", .data = &match_data_kryo }, { .compatible = "qcom,qcs404", .data = &match_data_qcs404 }, { .compatible = "qcom,ipq8064", .data = &match_data_krait }, - { .compatible = "qcom,apq8064", .data = &match_data_krait }, + { .compatible = "qcom,apq8064", .data = &match_data_apq8064 }, { .compatible = "qcom,msm8974", .data = &match_data_krait }, { .compatible = "qcom,msm8960", .data = &match_data_krait }, {}, -- 2.39.2