* Tero Kristo <t-kri...@ti.com> [150323 06:25]:
> On 03/23/2015 12:35 AM, Tony Lindgren wrote:
> >+static u32 ti_fapll_synth_set_frac_rate(struct fapll_synth *synth,
> >+ unsigned long rate,
> >+ unsigned long parent_rate)
> >+{
> >+ u32 post_div_m, synth_int_div, synth_frac_div, v;
> >+
> >+ post_div_m = DIV_ROUND_UP_ULL((u64)parent_rate * SYNTH_PHASE_K, rate);
> >+ post_div_m = post_div_m / SYNTH_MAX_INT_DIV;
> >+ if (post_div_m > SYNTH_MAX_DIV_M)
> >+ return -EINVAL;
> >+ if (!post_div_m)
> >+ post_div_m = 1;
> >+
> >+ for (; post_div_m < SYNTH_MAX_DIV_M; post_div_m++) {
> >+ synth_int_div = DIV_ROUND_UP_ULL((u64)parent_rate *
> >+ SYNTH_PHASE_K *
> >+ 10000000,
> >+ rate * post_div_m);
> >+ synth_frac_div = synth_int_div % 10000000;
> >+ synth_int_div /= 10000000;
> >+
> >+ if (synth_int_div <= SYNTH_MAX_INT_DIV)
> >+ break;
> >+ }
> >+
> >+ if (synth_int_div > SYNTH_MAX_INT_DIV)
> >+ return -EINVAL;
> >+
> >+ v = readl_relaxed(synth->freq);
> >+ v &= ~0x1fffffff;
> >+ v |= (synth_int_div & SYNTH_MAX_INT_DIV) << 24;
> >+ v |= (synth_frac_div & 0xffffff);
>
> This code is generating these compile time warnings for me:
>
> CC drivers/clk/ti/fapll.o
> drivers/clk/ti/fapll.c: In function ‘ti_fapll_synth_set_rate’:
> drivers/clk/ti/fapll.c:394:5: warning: ‘synth_int_div’ may be used
> uninitialized in this function [-Wuninitialized]
> drivers/clk/ti/fapll.c:373:18: note: ‘synth_int_div’ was declared here
> drivers/clk/ti/fapll.c:400:23: warning: ‘synth_frac_div’ may be used
> uninitialized in this function [-Wuninitialized]
> drivers/clk/ti/fapll.c:373:33: note: ‘synth_frac_div’ was declared here
Oops thanks will check. I did move this into a separate function
to make it more readable, probably happened at that point.
Regards,
Tony
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