[PATCH v2 0/7] Add UFS clock support for Qualcomm SoCs

[Casey Connolly]

On 27/04/2026 11:26, Balaji Selvanathan wrote:
> This series adds UFS clock support for QCS615, SA8775P SoCs and
> enables U-Boot to initialize UFS clocks independently.
> 
> Previously, U-Boot depended on earlier bootloader stages to
> initialize UFS clocks. When these bootloaders failed to do so,
> UFS registers became inaccessible, preventing UFS initialization.
> This series removes that dependency by adding clock infrastructure
> and enabling U-Boot to configure UFS clocks directly.
> 
> Signed-off-by: Balaji Selvanathan <balaji.selvanathan at oss.qualcomm.com>

Reviewed-by: Casey Connolly <casey.connolly at linaro.org>

> ---
> Changes in v2:
> - Sort compatibles in drivers/clk/clk-stub.c alphabetically 
> - Remove duplicate sc7280 compatible which was already there
> - Remove ufs_qcom_init_clks function and move the clock enabling and
>   rate set codes to ufs_qcom_init
> - Remove ufs_qcom_setup_clocks POST_CHANGE duplicate call
> - Link to v1: https://lore.kernel.org/u-boot/20260319-ufs_probe_clk-v1-0-08c085d6b15d@oss.qualcomm.com/
> 
> ---
> Balaji Selvanathan (7):
>       clk: stub: Sort compatible strings alphabetically
>       clk: qcom: clk-stub: Add compatibles for QCS615/SA8775P
>       clk: qcom: sa8775p: Add UFS clock support
>       clk: qcom: qcs615: Add UFS clock support
>       clk: qcom: sc7280: Add UFS clock support
>       drivers: ufs: qcom: Initialize and enable clocks before hardware access
>       ufs: qcom: Remove redundant POST_CHANGE clock setup call
> 
>  drivers/clk/clk-stub.c           |  6 ++--
>  drivers/clk/qcom/clock-qcs615.c  | 63 +++++++++++++++++++++++++++++++++++++++-
>  drivers/clk/qcom/clock-sa8775p.c | 63 ++++++++++++++++++++++++++++++++++++++++
>  drivers/clk/qcom/clock-sc7280.c  | 52 +++++++++++++++++++++++++++++++++
>  drivers/ufs/ufs-qcom.c           | 54 ++++++++++++++++++++++------------
>  5 files changed, 217 insertions(+), 21 deletions(-)
> ---
> base-commit: 9f61fd5b80a43ae20ba115e3a2933d47d720ab82
> change-id: 20260427-ufs_clk-49c917afbc6f
> 
> Best regards,

-- 
// Casey (she/her)