[PATCH RFC 2/3] clk: dt: binding for basic multiplexor clock
Mike Turquette
mturquette at linaro.org
Tue Jun 4 06:07:22 EST 2013
Quoting Heiko Stübner (2013-06-03 12:33:19)
> Hi Mike,
>
> I think it's a multiplexEr clock in the patch title, and see below
>
Doh, you are right. But "xor" is so much cooler looking than "xer"...
>
> Am Montag, 3. Juni 2013, 19:53:09 schrieb Mike Turquette:
> > Device Tree binding for the basic clock multiplexor, plus the setup
> > function to register the clock. Based on the existing fixed-clock
> > binding.
> >
> > Also relocate declaration of of_fixed_factor_clk_setup to keep things
> > tidy.
> >
> > Signed-off-by: Mike Turquette <mturquette at linaro.org>
>
> [...]
>
> > +
> > + reg = of_iomap(node, 0);
> > + pr_err("%s: reg is 0x%p\n", __func__, reg);
> > +
> > + if (of_property_read_u32(node, "mask", &mask)) {
> > + pr_err("%s: missing mask property for %s\n", __func__, node->name);
> > + return;
> > + }
> > +
> > + if (of_property_read_u32(node, "shift", &shift))
> > + pr_debug("%s: missing shift property defaults to zero for %s\n",
> > + __func__, node->name);
> > +
> > + if (of_property_read_bool(node, "index_one"))
> > + clk_mux_flags |= CLK_MUX_INDEX_ONE;
> > +
> > + clk = clk_register_mux_table(NULL, clk_name, parent_names, num_parents,
> > + 0, reg, 0, mask, clk_mux_flags,
>
> ^- should probably be shift
>
>
> Otherwise looks cool and I'm currently trying it with my Rockchip code.
>
Right again. My test platform seems to not shift the mask at all so
this did not cause a visible bug for me.
Thanks for the review,
Mike
>
> Heiko
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