Hi, I am bringing up a OMAP4460 board on dt and I saw the following messages in the kernel log from "cpufreq-cpu0". [ 2.373352] cpufreq_cpu0: failed to get cpu0 regulator: -19 [ 2.379302] cpufreq_cpu0: failed to get cpu0 clock: -2 [ 2.384704] cpufreq-cpu0: probe of cpufreq-cpu0.0 failed with error -2 Failure to get the clock is because OMAP4 seems to be lacking a "cpu0" entry in cclock44xx_data.c. Adding "CLK("cpu0", NULL, &dpll_mpu_ck)," to "omap44xx_clks" seems to do the trick. This is what OMAP3 has anyways. Think this failure was caused by commit 60c5fc86d which switched from "omap-cpufreq" to "cpufreq-cpu0" driver on dt boot. As far as I can see it makes cpufreq work again. I at least get the cpufreq nodes in sysfs and can play around with them. Should I submit a patch for cclock44xx_data.c adding "cpu0"? Next up is the regulator. Since my board is a 4460 and it seems that tps63261 support for 4460 never made it to mainline I guess I am out of luck here? But for all 4430 boards in mainline I guess it would be nice to add: &twl { vdd1: regulator-vdd1 { compatible = "ti,twl6030-vdd1"; regulator-min-microvolt = <1000000>; regulator-max-microvolt = <1400000>; }; }; cpus { cpu@0 { cpu0-supply = <&vdd1>; }; }; I assume this would work but I don't have a 4430 board to test it on. Unsure about voltage range, but at least 1.0 to 1.4V covers the operation points for cpu in omap443xx.dtsi. regards Joachim Eastwood -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html