Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1621030 > unrolled thread

Re: [PATCH 2/2] clk: cs2000: add AUX_OUT pin select support

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  Re: [PATCH 2/2] clk: cs2000: add AUX_OUT pin select support Geert Uytterhoeven <geert@linux-m68k.org> - 2017-04-11 10:40 +0200

#1621030 — Re: [PATCH 2/2] clk: cs2000: add AUX_OUT pin select support

Hi Morimoto-san,

On Tue, Apr 11, 2017 at 2:36 AM, Kuninori Morimoto
<kuninori.morimoto.gx@renesas.com> wrote:
> From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
>
> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
> Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
> ---
>  .../devicetree/bindings/clock/cs2000-cp.txt        |  9 +++
>  drivers/clk/clk-cs2000-cp.c                        | 73 +++++++++++++++++++++-
>  2 files changed, 80 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/clock/cs2000-cp.txt b/Documentation/devicetree/bindings/clock/cs2000-cp.txt
> index 54e6df0..4c2f9cb 100644
> --- a/Documentation/devicetree/bindings/clock/cs2000-cp.txt
> +++ b/Documentation/devicetree/bindings/clock/cs2000-cp.txt
> @@ -8,6 +8,15 @@ Required properties:
>  - clock-names:         CLK_IN : clk_in, XTI/REF_CLK : ref_clk
>  - #clock-cells:                must be <0>
>
> +Option properties:
> +
> +- auxoutsrc:           select AUX_OUT source from these.
> +                               refclk:         Timing Reference Clock
> +                               clk_in:         Frequency Reference Clock
> +                               pllclkout:      PLL Clock Output
> +                               push-pull:      PLL Lock/Unlock Indication
> +                               open-drain:     PLL Lock/Unlock Indication

AUX_OUT is an output pin?
Hence, isn't this software configuration instead of hardware description?

Selection of refclk vs. clk_in vs. pllclkout can be implemented as a mux clock
driver with three parents.

PLL Lock/Unlock Indication and its pinctrl are something different.
How to support that?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web