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| author | Nitin Rawat <quic_nitirawa@quicinc.com> | 2023-09-05 07:23:57 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-09-14 03:15:40 +0200 |
| commit | b4e13e1ae95e7d9ad3dd2e1ca98cd1328d913fb8 (patch) | |
| tree | 4f6abb408dfe916a09fcc0732d3183c570d95d50 /drivers/ufs/host/ufs-qcom.h | |
| parent | scsi: ufs: qcom: Update MAX_CORE_CLK_1US_CYCLES for UFS V4 and above (diff) | |
| download | linux-b4e13e1ae95e7d9ad3dd2e1ca98cd1328d913fb8.tar.xz linux-b4e13e1ae95e7d9ad3dd2e1ca98cd1328d913fb8.zip | |
scsi: ufs: qcom: Add multiple frequency support for MAX_CORE_CLK_1US_CYCLES
Qualcomm UFS Controller V4 and above supports multiple unipro frequencies
like 403MHz, 300MHz, 202MHz, 150 MHz, 75Mhz, 37.5 MHz. Current code
supports only 150MHz and 75MHz which have performance impact due to low UFS
controller frequencies.
For targets which supports frequencies other than 150 MHz and 75 Mhz, needs
an update of MAX_CORE_CLK_1US_CYCLES to match the configured frequency to
avoid functionality issues. Add multiple frequency support for
MAX_CORE_CLK_1US_CYCLES based on the frequency configured.
Co-developed-by: Naveen Kumar Goud Arepalli <quic_narepall@quicinc.com>
Signed-off-by: Naveen Kumar Goud Arepalli <quic_narepall@quicinc.com>
Signed-off-by: Nitin Rawat <quic_nitirawa@quicinc.com>
Link: https://lore.kernel.org/r/20230905052400.13935-3-quic_nitirawa@quicinc.com
Reviewed-by: Can Guo <quic_cang@quicinc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ufs/host/ufs-qcom.h')
| -rw-r--r-- | drivers/ufs/host/ufs-qcom.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ufs/host/ufs-qcom.h b/drivers/ufs/host/ufs-qcom.h index 8a9d3dbec297..3c6ef1259af3 100644 --- a/drivers/ufs/host/ufs-qcom.h +++ b/drivers/ufs/host/ufs-qcom.h @@ -245,6 +245,7 @@ ufs_qcom_get_debug_reg_offset(struct ufs_qcom_host *host, u32 reg) #define ufs_qcom_is_link_off(hba) ufshcd_is_link_off(hba) #define ufs_qcom_is_link_active(hba) ufshcd_is_link_active(hba) #define ufs_qcom_is_link_hibern8(hba) ufshcd_is_link_hibern8(hba) +#define ceil(freq, div) ((freq) % (div) == 0 ? ((freq)/(div)) : ((freq)/(div) + 1)) int ufs_qcom_testbus_config(struct ufs_qcom_host *host); |