diff options
| author | Can Guo <quic_cang@quicinc.com> | 2025-02-13 16:00:04 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-02-20 21:53:49 -0500 |
| commit | c02fe9e222d16bed8c270608c42f77bc62562ac3 (patch) | |
| tree | 33439f387a8d2ff22ccd138ead604fd3d1161180 | |
| parent | d7bead60b08e61abde46d63eae6cd72f44939358 (diff) | |
scsi: ufs: qcom: Implement the freq_to_gear_speed() vop
Implement the freq_to_gear_speed() vop to map the unipro core clock
frequency to the corresponding maximum supported gear speed.
Signed-off-by: Can Guo <quic_cang@quicinc.com>
Co-developed-by: Ziqi Chen <quic_ziqichen@quicinc.com>
Signed-off-by: Ziqi Chen <quic_ziqichen@quicinc.com>
Link: https://lore.kernel.org/r/20250213080008.2984807-5-quic_ziqichen@quicinc.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/ufs/host/ufs-qcom.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 016aba022f7e..9e90d2ea23de 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1858,6 +1858,36 @@ static int ufs_qcom_config_esi(struct ufs_hba *hba) return ret; } +static u32 ufs_qcom_freq_to_gear_speed(struct ufs_hba *hba, unsigned long freq) +{ + u32 gear = 0; + + switch (freq) { + case 403000000: + gear = UFS_HS_G5; + break; + case 300000000: + gear = UFS_HS_G4; + break; + case 201500000: + gear = UFS_HS_G3; + break; + case 150000000: + case 100000000: + gear = UFS_HS_G2; + break; + case 75000000: + case 37500000: + gear = UFS_HS_G1; + break; + default: + dev_err(hba->dev, "%s: Unsupported clock freq : %lu\n", __func__, freq); + break; + } + + return gear; +} + /* * struct ufs_hba_qcom_vops - UFS QCOM specific variant operations * @@ -1886,6 +1916,7 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = { .op_runtime_config = ufs_qcom_op_runtime_config, .get_outstanding_cqs = ufs_qcom_get_outstanding_cqs, .config_esi = ufs_qcom_config_esi, + .freq_to_gear_speed = ufs_qcom_freq_to_gear_speed, }; /** |