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    SubjectRe: [PATCH 2/6] soc: qcom: smem: Add pcode/fcode getters
    On Fri, Apr 05, 2024 at 10:41:30AM +0200, Konrad Dybcio wrote:
    > Introduce getters for SoC product and feature codes and export them.
    >
    > Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
    > ---
    > drivers/soc/qcom/smem.c | 66 +++++++++++++++++++++++++++++++++++++++++++
    > include/linux/soc/qcom/smem.h | 2 ++
    > 2 files changed, 68 insertions(+)
    >
    > diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c
    > index 7191fa0c087f..e89b4d26877a 100644
    > --- a/drivers/soc/qcom/smem.c
    > +++ b/drivers/soc/qcom/smem.c
    > @@ -795,6 +795,72 @@ int qcom_smem_get_soc_id(u32 *id)
    > }
    > EXPORT_SYMBOL_GPL(qcom_smem_get_soc_id);
    >
    > +/**
    > + * qcom_smem_get_feature_code() - return the feature code
    > + * @id: On success, we return the feature code here.
    ^^ code
    > + *
    > + * Look up the feature code identifier from SMEM and return it.
    > + *
    > + * Return: 0 on success, negative errno on failure.
    > + */
    > +int qcom_smem_get_feature_code(u32 *code)
    > +{
    > + struct socinfo *info;
    > + u32 raw_code;
    > +
    > + info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID, NULL);
    > + if (IS_ERR(info))
    > + return PTR_ERR(info);
    > +
    > + /* This only makes sense for socinfo >= 16 */
    > + if (__le32_to_cpu(info->fmt) < SOCINFO_VERSION(0, 16))
    > + return -EINVAL;
    > +
    > + raw_code = __le32_to_cpu(info->feature_code);
    > +
    > + /* Ensure the value makes sense */
    > + if (raw_code >= SOCINFO_FC_INT_RESERVE)
    > + raw_code = SOCINFO_FC_UNKNOWN;
    > +
    > + *code = raw_code;
    > +
    > + return 0;
    > +}
    > +EXPORT_SYMBOL_GPL(qcom_smem_get_feature_code);
    > +
    > +/**
    > + * qcom_smem_get_product_code() - return the product code
    > + * @id: On success, we return the product code here.
    ^^ code
    > + *
    > + * Look up feature code identifier from SMEM and return it.
    > + *
    > + * Return: 0 on success, negative errno on failure.
    > + */
    > +int qcom_smem_get_product_code(u32 *code)
    > +{
    > + struct socinfo *info;
    > + u32 raw_code;
    > +
    > + info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID, NULL);
    > + if (IS_ERR(info))
    > + return PTR_ERR(info);
    > +
    > + /* This only makes sense for socinfo >= 16 */
    > + if (__le32_to_cpu(info->fmt) < SOCINFO_VERSION(0, 16))
    > + return -EINVAL;
    > +
    > + raw_code = __le32_to_cpu(info->pcode);
    > +
    > + /* Ensure the value makes sense */
    > + if (raw_code >= SOCINFO_FC_INT_RESERVE)
    > + raw_code = SOCINFO_FC_UNKNOWN;
    > +
    > + *code = raw_code;
    > +
    > + return 0;
    > +}
    > +EXPORT_SYMBOL_GPL(qcom_smem_get_product_code);
    > +
    > static int qcom_smem_get_sbl_version(struct qcom_smem *smem)
    > {
    > struct smem_header *header;
    > diff --git a/include/linux/soc/qcom/smem.h b/include/linux/soc/qcom/smem.h
    > index a36a3b9d4929..aef8c9fc6c08 100644
    > --- a/include/linux/soc/qcom/smem.h
    > +++ b/include/linux/soc/qcom/smem.h
    > @@ -13,5 +13,7 @@ int qcom_smem_get_free_space(unsigned host);
    > phys_addr_t qcom_smem_virt_to_phys(void *p);
    >
    > int qcom_smem_get_soc_id(u32 *id);
    > +int qcom_smem_get_feature_code(u32 *code);
    > +int qcom_smem_get_product_code(u32 *code);
    >
    > #endif
    >
    > --
    > 2.40.1
    >
    >

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