On Mon, Jul 21, 2014 at 9:09 PM, Tuomas Tynkkynen <ttynkkynen@xxxxxxxxxx> wrote: > Add a new cpufreq driver for Tegra124. Instead of using the PLLX as <snip> > + > +static int tegra124_cpu_switch_to_dfll(void) > +{ > + struct clk *original_cpu_clk_parent; > + unsigned long rate; > + struct dev_pm_opp *opp; > + int ret; > + > + rate = clk_get_rate(cpu_clk); > + opp = dev_pm_opp_find_freq_ceil(cpu_dev, &rate); > + if (IS_ERR(opp)) > + return PTR_ERR(opp); > + > + ret = clk_set_rate(dfll_clk, rate); > + if (ret) > + return ret; > + > + original_cpu_clk_parent = clk_get_parent(cpu_clk); > + clk_set_parent(cpu_clk, pllp_clk); Needs return check. > + if (ret) > + return ret; Which 'ret' is being checked here? nothing is assigned here. May be fixing previous comment will fix this. > + > + ret = clk_prepare_enable(dfll_clk); <snip> > Please read the FAQ at http://www.tux.org/lkml/ -- Thanks and Regards Pramod -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html