Re: [PATCH v2 06/10] clk: berlin: add core clock driver for BG2/BG2CD

From: Alexandre Belloni
Date: Thu May 15 2014 - 04:09:35 EST


On 14/05/2014 at 22:15:17 +0200, Sebastian Hesselbarth wrote :
> + /* clock divider cells */
> + parent_names[1] = avpllb_names[CH4];
> + parent_names[2] = avpllb_names[CH5];
> + parent_names[3] = avpllb_names[CH6];
> + parent_names[4] = avpllb_names[CH7];
> +
> + parent_names[0] = refclk_names[SYSPLL];

It should actually be:

parent_names[0] = avpllb_names[CH4];
parent_names[1] = avpllb_names[CH5];
parent_names[2] = avpllb_names[CH6];
parent_names[3] = avpllb_names[CH7];
parent_names[4] = refclk_names[SYSPLL];

> + data = &bg2_divs[CLKID_SYS];
> + clks[CLKID_SYS] = berlin2_div_register(&data->map, base, data->name,
> + data->div_flags, parent_names, 5, data->flags, &lock);
> +
> + parent_names[0] = refclk_names[CPUPLL];
> + parent_names[5] = refclk_names[MEMPLL];

The only valid choice here should be (remember, we are not adding 1 to
the index anymore):
parent_names[4] = refclk_names[MEMPLL];

> + data = &bg2_divs[CLKID_CPU];
> + clks[CLKID_CPU] = berlin2_div_register(&data->map, base, data->name,
> + data->div_flags, parent_names, 6, data->flags, &lock);
> +

This is where it gets tricky, now we should have:
parent_names[0] = avpllb_names[CH4];
parent_names[1] = avplla_names[CH5];
parent_names[2] = avpllb_names[CH6];
parent_names[3] = avpllb_names[CH7];
parent_names[4] = refclk_names[SYSPLL];

> + parent_names[0] = refclk_names[SYSPLL];
> + for (n = CLKID_DRMFIGO; n <= CLKID_APP; n++) {
> + data = &bg2_divs[n];
> + clks[n] = berlin2_div_register(&data->map, base, data->name,
> + data->div_flags, parent_names, 5, data->flags, &lock);
> + }
> +

--
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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