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[178.235.177.204]) by smtp.gmail.com with ESMTPSA id f25-20020a170906495900b0099d9dee8108sm10215498ejt.149.2023.09.07.01.34.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 07 Sep 2023 01:34:50 -0700 (PDT) Message-ID: Date: Thu, 7 Sep 2023 10:34:48 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 06/10] cpufreq: qti: Enable cpufreq for ipq53xx Content-Language: en-US To: Varadarajan Narayanan , ilia.lin@kernel.org, agross@kernel.org, andersson@kernel.org, rafael@kernel.org, viresh.kumar@linaro.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, mturquette@baylibre.com, sboyd@kernel.org, quic_kathirav@quicinc.com, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org References: <558c6b70090ea7220bfb0b6e7d81828025018376.1693996662.git.quic_varada@quicinc.com> From: Konrad Dybcio Autocrypt: addr=konrad.dybcio@linaro.org; keydata= xsFNBF9ALYUBEADWAhxdTBWrwAgDQQzc1O/bJ5O7b6cXYxwbBd9xKP7MICh5YA0DcCjJSOum BB/OmIWU6X+LZW6P88ZmHe+KeyABLMP5s1tJNK1j4ntT7mECcWZDzafPWF4F6m4WJOG27kTJ HGWdmtO+RvadOVi6CoUDqALsmfS3MUG5Pj2Ne9+0jRg4hEnB92AyF9rW2G3qisFcwPgvatt7 TXD5E38mLyOPOUyXNj9XpDbt1hNwKQfiidmPh5e7VNAWRnW1iCMMoKqzM1Anzq7e5Afyeifz zRcQPLaqrPjnKqZGL2BKQSZDh6NkI5ZLRhhHQf61fkWcUpTp1oDC6jWVfT7hwRVIQLrrNj9G MpPzrlN4YuAqKeIer1FMt8cq64ifgTzxHzXsMcUdclzq2LTk2RXaPl6Jg/IXWqUClJHbamSk t1bfif3SnmhA6TiNvEpDKPiT3IDs42THU6ygslrBxyROQPWLI9IL1y8S6RtEh8H+NZQWZNzm UQ3imZirlPjxZtvz1BtnnBWS06e7x/UEAguj7VHCuymVgpl2Za17d1jj81YN5Rp5L9GXxkV1 aUEwONM3eCI3qcYm5JNc5X+JthZOWsbIPSC1Rhxz3JmWIwP1udr5E3oNRe9u2LIEq+wH/toH kpPDhTeMkvt4KfE5m5ercid9+ZXAqoaYLUL4HCEw+HW0DXcKDwARAQABzShLb25yYWQgRHli Y2lvIDxrb25yYWQuZHliY2lvQGxpbmFyby5vcmc+wsGOBBMBCAA4FiEEU24if9oCL2zdAAQV R4cBcg5dfFgFAmQ5bqwCGwMFCwkIBwIGFQoJCAsCBBYCAwECHgECF4AACgkQR4cBcg5dfFjO BQ//YQV6fkbqQCceYebGg6TiisWCy8LG77zV7DB0VMIWJv7Km7Sz0QQrHQVzhEr3trNenZrf yy+o2tQOF2biICzbLM8oyQPY8B///KJTWI2khoB8IJSJq3kNG68NjPg2vkP6CMltC/X3ohAo xL2UgwN5vj74QnlNneOjc0vGbtA7zURNhTz5P/YuTudCqcAbxJkbqZM4WymjQhe0XgwHLkiH 5LHSZ31MRKp/+4Kqs4DTXMctc7vFhtUdmatAExDKw8oEz5NbskKbW+qHjW1XUcUIrxRr667V GWH6MkVceT9ZBrtLoSzMLYaQXvi3sSAup0qiJiBYszc/VOu3RbIpNLRcXN3KYuxdQAptacTE mA+5+4Y4DfC3rUSun+hWLDeac9z9jjHm5rE998OqZnOU9aztbd6zQG5VL6EKgsVXAZD4D3RP x1NaAjdA3MD06eyvbOWiA5NSzIcC8UIQvgx09xm7dThCuQYJR4Yxjd+9JPJHI6apzNZpDGvQ BBZzvwxV6L1CojUEpnilmMG1ZOTstktWpNzw3G2Gis0XihDUef0MWVsQYJAl0wfiv/0By+XK mm2zRR+l/dnzxnlbgJ5pO0imC2w0TVxLkAp0eo0LHw619finad2u6UPQAkZ4oj++iIGrJkt5 Lkn2XgB+IW8ESflz6nDY3b5KQRF8Z6XLP0+IEdLOOARkOW7yEgorBgEEAZdVAQUBAQdAwmUx xrbSCx2ksDxz7rFFGX1KmTkdRtcgC6F3NfuNYkYDAQgHwsF2BBgBCAAgFiEEU24if9oCL2zd AAQVR4cBcg5dfFgFAmQ5bvICGwwACgkQR4cBcg5dfFju1Q//Xta1ShwL0MLSC1KL1lXGXeRM 8arzfyiB5wJ9tb9U/nZvhhdfilEDLe0jKJY0RJErbdRHsalwQCrtq/1ewQpMpsRxXzAjgfRN jc4tgxRWmI+aVTzSRpywNahzZBT695hMz81cVZJoZzaV0KaMTlSnBkrviPz1nIGHYCHJxF9r cIu0GSIyUjZ/7xslxdvjpLth16H27JCWDzDqIQMtg61063gNyEyWgt1qRSaK14JIH/DoYRfn jfFQSC8bffFjat7BQGFz4ZpRavkMUFuDirn5Tf28oc5ebe2cIHp4/kajTx/7JOxWZ80U70mA cBgEeYSrYYnX+UJsSxpzLc/0sT1eRJDEhI4XIQM4ClIzpsCIN5HnVF76UQXh3a9zpwh3dk8i bhN/URmCOTH+LHNJYN/MxY8wuukq877DWB7k86pBs5IDLAXmW8v3gIDWyIcgYqb2v8QO2Mqx YMqL7UZxVLul4/JbllsQB8F/fNI8AfttmAQL9cwo6C8yDTXKdho920W4WUR9k8NT/OBqWSyk bGqMHex48FVZhexNPYOd58EY9/7mL5u0sJmo+jTeb4JBgIbFPJCFyng4HwbniWgQJZ1WqaUC nas9J77uICis2WH7N8Bs9jy0wQYezNzqS+FxoNXmDQg2jetX8en4bO2Di7Pmx0jXA4TOb9TM izWDgYvmBE8= In-Reply-To: <558c6b70090ea7220bfb0b6e7d81828025018376.1693996662.git.quic_varada@quicinc.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7.09.2023 07:21, Varadarajan Narayanan wrote: > IPQ53xx have different OPPs available for the CPU based on > SoC variant. This can be determined through use of an eFuse > register present in the silicon. > > Added support for ipq53xx on nvmem driver which helps to > determine OPPs at runtime based on the eFuse register which > has the CPU frequency limits. opp-supported-hw dt binding > can be used to indicate the available OPPs for each limit. > > nvmem driver also creates the "cpufreq-dt" platform_device after > passing the version matching data to the OPP framework so that the > cpufreq-dt handles the actual cpufreq implementation. > > Signed-off-by: Kathiravan T > Signed-off-by: Varadarajan Narayanan > --- > drivers/cpufreq/cpufreq-dt-platdev.c | 1 + > drivers/cpufreq/qcom-cpufreq-nvmem.c | 15 +++++++++++++++ > 2 files changed, 16 insertions(+) > > diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c > index 02ec58a..f0c45d4 100644 > --- a/drivers/cpufreq/cpufreq-dt-platdev.c > +++ b/drivers/cpufreq/cpufreq-dt-platdev.c Viresh probably picks up patches for both files, so it should be fine, but I'd say it's 'eeeh' to edit 2 separate drivers at once. > @@ -178,6 +178,7 @@ static const struct of_device_id blocklist[] __initconst = { > { .compatible = "ti,am625", }, > { .compatible = "ti,am62a7", }, > > + { .compatible = "qcom,ipq5332", }, > { .compatible = "qcom,ipq8064", }, > { .compatible = "qcom,apq8064", }, > { .compatible = "qcom,msm8974", }, > diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c > index 84d7033..49d21b0 100644 > --- a/drivers/cpufreq/qcom-cpufreq-nvmem.c > +++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c > @@ -146,6 +146,20 @@ static int qcom_cpufreq_kryo_name_version(struct device *cpu_dev, > return PTR_ERR(speedbin); > > switch (msm_id) { > + case QCOM_ID_IPQ5332: > + case QCOM_ID_IPQ5322: > + case QCOM_ID_IPQ5312: > + case QCOM_ID_IPQ5302: > + case QCOM_ID_IPQ5300: > + /* Fuse Value Freq BIT to set > + * --------------------------------- > + * 2’b00 No Limit BIT(0) > + * 2’b01 1.5 GHz BIT(1) > + * 2’b10 1.2 Ghz BIT(2) > + * 2’b11 1.0 GHz BIT(3) I think the last column is a bit excessive, it says exactly the same as the line below. Actually, with this data being present in the devicetree, perhaps this comment could be entirely skipped. Konrad > + */ > + drv->versions = 1 << (unsigned int)(*speedbin); > + break; > case QCOM_ID_MSM8996: > case QCOM_ID_APQ8096: > drv->versions = 1 << (unsigned int)(*speedbin); > @@ -359,6 +373,7 @@ static const struct of_device_id qcom_cpufreq_match_list[] __initconst = { > { .compatible = "qcom,apq8096", .data = &match_data_kryo }, > { .compatible = "qcom,msm8996", .data = &match_data_kryo }, > { .compatible = "qcom,qcs404", .data = &match_data_qcs404 }, > + { .compatible = "qcom,ipq5332", .data = &match_data_kryo }, > { .compatible = "qcom,ipq8064", .data = &match_data_krait }, > { .compatible = "qcom,apq8064", .data = &match_data_krait }, > { .compatible = "qcom,msm8974", .data = &match_data_krait },