Re: [PATCH v2 4/4] clk: qcom: gcc-ipq806x: remove cc_register_board for pxo and cxo

From: Christian Marangi
Date: Mon Jul 18 2022 - 21:57:24 EST


On Mon, Jul 18, 2022 at 07:12:47PM -0500, Bjorn Andersson wrote:
> On Wed 06 Jul 17:53 CDT 2022, Christian Marangi wrote:
>
> > Now that these clock are defined as fixed clk in dts, we can drop the
> > register_board_clk for cxo_board and pxo_board in gcc_ipq806x_probe.
> >
>
> Are you trying to say, that now that we have .fw_name based lookup of
> these clocks we don't need the globally registered [cp]xo clocks to
> bridge towards the [cp]xo_board_clocks which was introduced in:
>
> 30fc4212d541 ("arm: dts: qcom: Add more board clocks")
>
> I think this change would work out if you also replace .name = "pxo"
> with .name = "pxo_board_clk" (and same for cxo)...
>

Mhhh why pxo_board_clk? Why _clk? It should be pxo_board.
Anyway about this, only the rpm clocks use pxo_board as parent,
everything else use pxo. Aside from rpm and gcc the other user of pxo is
the lcc driver and the krait-xcc clock. I sent patches to convert them.

>
> But I don't think we can just drop these, as it would break
> compatibility with existing devicetree.

Wonder if we will be able to drop this ever?

> > Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
> > ---
> > drivers/clk/qcom/gcc-ipq806x.c | 8 --------
> > 1 file changed, 8 deletions(-)
> >
> > diff --git a/drivers/clk/qcom/gcc-ipq806x.c b/drivers/clk/qcom/gcc-ipq806x.c
> > index 718de17a1e60..883629de2751 100644
> > --- a/drivers/clk/qcom/gcc-ipq806x.c
> > +++ b/drivers/clk/qcom/gcc-ipq806x.c
> > @@ -3384,14 +3384,6 @@ static int gcc_ipq806x_probe(struct platform_device *pdev)
> > struct regmap *regmap;
> > int ret;
> >
> > - ret = qcom_cc_register_board_clk(dev, "cxo_board", "cxo", 25000000);
> > - if (ret)
> > - return ret;
> > -
> > - ret = qcom_cc_register_board_clk(dev, "pxo_board", "pxo", 25000000);
> > - if (ret)
> > - return ret;
> > -
> > if (of_machine_is_compatible("qcom,ipq8065")) {
> > ubi32_core1_src_clk.freq_tbl = clk_tbl_nss_ipq8065;
> > ubi32_core2_src_clk.freq_tbl = clk_tbl_nss_ipq8065;
> > --
> > 2.36.1
> >

--
Ansuel