Re: [PATCH v2 1/3] clk: qcom: smd-rpm: Add .recalc_rate hook for clk_smd_rpm_branch_ops

From: Stephen Boyd
Date: Wed Oct 13 2021 - 15:43:13 EST


Quoting Shawn Guo (2021-09-16 20:04:32)
> As there is a `rate` field in clk_smd_rpm, clk_smd_rpm_recalc_rate() can
> be used by branch clocks to report rate as well, rather than assuming
> the rate is always same as parent clock. This assumption doesn't hold
> on platforms like QCM2290, where xo_board is 38.4MHz while bi_tcxo is
> 19.2MHz.
>
> To get this work, XO buffered clocks need the following updates.
>
> - Assign a correct rate rather than the fake one which is being used to
> generate binary value for clk_smd_rpm_req interface.
>
> - Explicitly handle the clk_smd_rpm_req interface value for XO buffered
> clocks (.rpm_res_type being QCOM_SMD_RPM_CLK_BUF_A).
>
> Suggested-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
> ---

Applied to clk-next