diff options
| author | Ram Kumar Dwivedi <quic_rdwivedi@quicinc.com> | 2025-09-17 19:39:33 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-09-24 22:27:47 -0400 |
| commit | 88f4d3aa29c8b1944ad506ac92c948258cbc004b (patch) | |
| tree | 7c5dd2c2e7f3fffdcb2954170678746dc9134ed1 | |
| parent | 1cc577e64d68ba0a720329e37aa955c0de297a77 (diff) | |
scsi: ufs: ufs-qcom: Add support for limiting HS gear and rate
Add support to limit Tx/Rx gear and rate during UFS initialization based
on DT property.
Also update the phy_gear to ensure PHY calibrations align with the
required gear and rate.
Signed-off-by: Ram Kumar Dwivedi <quic_rdwivedi@quicinc.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/ufs/host/ufs-qcom.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 4b8afaf12f2e..749e6912a9c1 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1092,6 +1092,18 @@ static void ufs_qcom_set_phy_gear(struct ufs_qcom_host *host) } } +static void ufs_qcom_parse_gear_limits(struct ufs_hba *hba) +{ + struct ufs_qcom_host *host = ufshcd_get_variant(hba); + struct ufs_host_params *host_params = &host->host_params; + u32 hs_gear_old = host_params->hs_tx_gear; + + ufshcd_parse_gear_limits(hba, host_params); + if (host_params->hs_tx_gear != hs_gear_old) { + host->phy_gear = host_params->hs_tx_gear; + } +} + static void ufs_qcom_set_host_params(struct ufs_hba *hba) { struct ufs_qcom_host *host = ufshcd_get_variant(hba); @@ -1333,6 +1345,7 @@ static int ufs_qcom_init(struct ufs_hba *hba) ufs_qcom_advertise_quirks(hba); ufs_qcom_set_host_params(hba); ufs_qcom_set_phy_gear(host); + ufs_qcom_parse_gear_limits(hba); err = ufs_qcom_ice_init(host); if (err) |