On 26.05.2023 22:48, Robert Marko wrote:
> Now that SMEM exports a helper to get the SMEM SoC ID lets utilize it.
> Currently qcom_cpufreq_get_msm_id() is encoding the returned SMEM SoC ID
> into an enum, however there is no reason to do so and we can just match
> directly on the SMEM SoC ID as returned by qcom_smem_get_soc_id().
>
> Signed-off-by: Robert Marko <robimarko@xxxxxxxxx>
> Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> ---
> Changes in v4:
> * Adapt to name change to qcom_smem_get_soc_id()
>
> Changes in v3:
> * Adapt to helper using argument now
>
> Changes in v2:
> * Utilize helper exported by SMEM instead of refactoring
> qcom_cpufreq_get_msm_id()
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Konrad
> drivers/cpufreq/qcom-cpufreq-nvmem.c | 56 +++++-----------------------
> 1 file changed, 10 insertions(+), 46 deletions(-)
>
> diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c
> index 60e99be2d3db..a88b6fe5db50 100644
> --- a/drivers/cpufreq/qcom-cpufreq-nvmem.c
> +++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c
> @@ -29,16 +29,8 @@
> #include <linux/slab.h>
> #include <linux/soc/qcom/smem.h>
>
> -#define MSM_ID_SMEM 137
> -
> #include <dt-bindings/arm/qcom,ids.h>
>
> -enum _msm8996_version {
> - MSM8996_V3,
> - MSM8996_SG,
> - NUM_OF_MSM8996_VERSIONS,
> -};
> -
> struct qcom_cpufreq_drv;
>
> struct qcom_cpufreq_match_data {
> @@ -135,60 +127,32 @@ static void get_krait_bin_format_b(struct device *cpu_dev,
> dev_dbg(cpu_dev, "PVS version: %d\n", *pvs_ver);
> }
>
> -static enum _msm8996_version qcom_cpufreq_get_msm_id(void)
> -{
> - size_t len;
> - u32 *msm_id;
> - enum _msm8996_version version;
> -
> - msm_id = qcom_smem_get(QCOM_SMEM_HOST_ANY, MSM_ID_SMEM, &len);
> - if (IS_ERR(msm_id))
> - return NUM_OF_MSM8996_VERSIONS;
> -
> - /* The first 4 bytes are format, next to them is the actual msm-id */
> - msm_id++;
> -
> - switch ((enum _msm_id)*msm_id) {
> - case QCOM_ID_MSM8996:
> - case QCOM_ID_APQ8096:
> - version = MSM8996_V3;
> - break;
> - case QCOM_ID_MSM8996SG:
> - case QCOM_ID_APQ8096SG:
> - version = MSM8996_SG;
> - break;
> - default:
> - version = NUM_OF_MSM8996_VERSIONS;
> - }
> -
> - return version;
> -}
> -
> static int qcom_cpufreq_kryo_name_version(struct device *cpu_dev,
> struct nvmem_cell *speedbin_nvmem,
> char **pvs_name,
> struct qcom_cpufreq_drv *drv)
> {
> size_t len;
> + u32 msm_id;
> u8 *speedbin;
> - enum _msm8996_version msm8996_version;
> + int ret;
> *pvs_name = NULL;
>
> - msm8996_version = qcom_cpufreq_get_msm_id();
> - if (NUM_OF_MSM8996_VERSIONS == msm8996_version) {
> - dev_err(cpu_dev, "Not Snapdragon 820/821!");
> - return -ENODEV;
> - }
> + ret = qcom_smem_get_soc_id(&msm_id);
> + if (ret)
> + return ret;
>
> speedbin = nvmem_cell_read(speedbin_nvmem, &len);
> if (IS_ERR(speedbin))
> return PTR_ERR(speedbin);
>
> - switch (msm8996_version) {
> - case MSM8996_V3:
> + switch (msm_id) {
> + case QCOM_ID_MSM8996:
> + case QCOM_ID_APQ8096:
> drv->versions = 1 << (unsigned int)(*speedbin);
> break;
> - case MSM8996_SG:
> + case QCOM_ID_MSM8996SG:
> + case QCOM_ID_APQ8096SG:
> drv->versions = 1 << ((unsigned int)(*speedbin) + 4);
> break;
> default:
