On Tue, Sep 14, 2021 at 07:55:21PM -0700, Bjorn Andersson wrote: > On Mon 13 Sep 19:55 PDT 2021, Shawn Guo wrote: > > > On QCM2290 platform, the clock xo_board runs at 38400000, while the > > child clock bi_tcxo needs to run at 19200000. That said, > > clk_smd_rpm_branch_ops needs the capability of setting rate. Add rate > > hooks into clk_smd_rpm_branch_ops to make it possible. > > > > Most platforms has a crystal oscillator ticking at 38.4MHz feeding the > PMIC (represented by the rpmcc and its "xo" parent) and out comes the > bi_tcxo with a fixed 19.2MHz rate. Yeah, but all those platforms are running clk-rpmh driver, I think. > Is there a problem with the way sdm660_bi_tcxo is defined in this > regard? There is no problem if xo clock is 19.2MHz, but for platforms with 38.4MHz xo, bi_tcxo will be seen as 38.4MHz in clock tree, while we expect it to be 19.2MHz. Shawn
