diff options
Diffstat (limited to 'target/linux/qualcommax/patches-6.6/0025-v6.7-cpufreq-qcom-nvmem-add-support-for-IPQ6018.patch')
| -rw-r--r-- | target/linux/qualcommax/patches-6.6/0025-v6.7-cpufreq-qcom-nvmem-add-support-for-IPQ6018.patch | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/target/linux/qualcommax/patches-6.6/0025-v6.7-cpufreq-qcom-nvmem-add-support-for-IPQ6018.patch b/target/linux/qualcommax/patches-6.6/0025-v6.7-cpufreq-qcom-nvmem-add-support-for-IPQ6018.patch new file mode 100644 index 0000000000..63e2f22db7 --- /dev/null +++ b/target/linux/qualcommax/patches-6.6/0025-v6.7-cpufreq-qcom-nvmem-add-support-for-IPQ6018.patch @@ -0,0 +1,123 @@ +From 47e161a7873b0891f4e01a69a839f6161d816ea8 Mon Sep 17 00:00:00 2001 +From: Robert Marko <robimarko@gmail.com> +Date: Wed, 25 Oct 2023 14:57:57 +0530 +Subject: [PATCH] cpufreq: qcom-nvmem: add support for IPQ6018 + +IPQ6018 SoC series comes in multiple SKU-s, and not all of them support +high frequency OPP points. + +SoC itself does however have a single bit in QFPROM to indicate the CPU +speed-bin. +That bit is used to indicate frequency limit of 1.5GHz, but that alone is +not enough as IPQ6000 only goes up to 1.2GHz, but SMEM ID can be used to +limit it further. + +IPQ6018 compatible is blacklisted from DT platdev as the cpufreq device +will get created by NVMEM CPUFreq driver. + +Signed-off-by: Robert Marko <robimarko@gmail.com> +[ Viresh: Fixed rebase conflict. ] +Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> +--- + drivers/cpufreq/cpufreq-dt-platdev.c | 1 + + drivers/cpufreq/qcom-cpufreq-nvmem.c | 58 ++++++++++++++++++++++++++++ + 2 files changed, 59 insertions(+) + +--- a/drivers/cpufreq/cpufreq-dt-platdev.c ++++ b/drivers/cpufreq/cpufreq-dt-platdev.c +@@ -163,6 +163,7 @@ static const struct of_device_id blockli + { .compatible = "ti,dra7", }, + { .compatible = "ti,omap3", }, + ++ { .compatible = "qcom,ipq6018", }, + { .compatible = "qcom,ipq8064", }, + { .compatible = "qcom,apq8064", }, + { .compatible = "qcom,msm8974", }, +--- a/drivers/cpufreq/qcom-cpufreq-nvmem.c ++++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c +@@ -31,6 +31,8 @@ + + #include <dt-bindings/arm/qcom,ids.h> + ++#define IPQ6000_VERSION BIT(2) ++ + struct qcom_cpufreq_drv; + + struct qcom_cpufreq_match_data { +@@ -204,6 +206,57 @@ len_error: + return ret; + } + ++static int qcom_cpufreq_ipq6018_name_version(struct device *cpu_dev, ++ struct nvmem_cell *speedbin_nvmem, ++ char **pvs_name, ++ struct qcom_cpufreq_drv *drv) ++{ ++ u32 msm_id; ++ int ret; ++ u8 *speedbin; ++ *pvs_name = NULL; ++ ++ ret = qcom_smem_get_soc_id(&msm_id); ++ if (ret) ++ return ret; ++ ++ speedbin = nvmem_cell_read(speedbin_nvmem, NULL); ++ if (IS_ERR(speedbin)) ++ return PTR_ERR(speedbin); ++ ++ switch (msm_id) { ++ case QCOM_ID_IPQ6005: ++ case QCOM_ID_IPQ6010: ++ case QCOM_ID_IPQ6018: ++ case QCOM_ID_IPQ6028: ++ /* Fuse Value Freq BIT to set ++ * --------------------------------- ++ * 2’b0 No Limit BIT(0) ++ * 2’b1 1.5 GHz BIT(1) ++ */ ++ drv->versions = 1 << (unsigned int)(*speedbin); ++ break; ++ case QCOM_ID_IPQ6000: ++ /* ++ * IPQ6018 family only has one bit to advertise the CPU ++ * speed-bin, but that is not enough for IPQ6000 which ++ * is only rated up to 1.2GHz. ++ * So for IPQ6000 manually set BIT(2) based on SMEM ID. ++ */ ++ drv->versions = IPQ6000_VERSION; ++ break; ++ default: ++ dev_err(cpu_dev, ++ "SoC ID %u is not part of IPQ6018 family, limiting to 1.2GHz!\n", ++ msm_id); ++ drv->versions = IPQ6000_VERSION; ++ break; ++ } ++ ++ kfree(speedbin); ++ return 0; ++} ++ + static const struct qcom_cpufreq_match_data match_data_kryo = { + .get_version = qcom_cpufreq_kryo_name_version, + }; +@@ -218,6 +271,10 @@ static const struct qcom_cpufreq_match_d + .genpd_names = qcs404_genpd_names, + }; + ++static const struct qcom_cpufreq_match_data match_data_ipq6018 = { ++ .get_version = qcom_cpufreq_ipq6018_name_version, ++}; ++ + static int qcom_cpufreq_probe(struct platform_device *pdev) + { + struct qcom_cpufreq_drv *drv; +@@ -362,6 +419,7 @@ static const struct of_device_id qcom_cp + { .compatible = "qcom,apq8096", .data = &match_data_kryo }, + { .compatible = "qcom,msm8996", .data = &match_data_kryo }, + { .compatible = "qcom,qcs404", .data = &match_data_qcs404 }, ++ { .compatible = "qcom,ipq6018", .data = &match_data_ipq6018 }, + { .compatible = "qcom,ipq8064", .data = &match_data_krait }, + { .compatible = "qcom,apq8064", .data = &match_data_krait }, + { .compatible = "qcom,msm8974", .data = &match_data_krait }, |