From c02fe9e222d16bed8c270608c42f77bc62562ac3 Mon Sep 17 00:00:00 2001 From: Can Guo Date: Thu, 13 Feb 2025 16:00:04 +0800 Subject: [PATCH] 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 Co-developed-by: Ziqi Chen Signed-off-by: Ziqi Chen Link: https://lore.kernel.org/r/20250213080008.2984807-5-quic_ziqichen@quicinc.com Reviewed-by: Bean Huo Tested-by: Neil Armstrong Reviewed-by: Peter Wang Signed-off-by: Martin K. Petersen --- drivers/ufs/host/ufs-qcom.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) 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, }; /** -- 2.50.1