On Thu, Dec 04, 2014 at 01:24:24PM -0800, Tyler Baker wrote: > This patch enables the MAX77686 PMIC drivers in the multi_v7_defconfig used > on exynos4412-prime family of SoCs [1]. The exynos4412-prime based boards > are producing the following runtime errors only on the multi_v7_defconfig [2]: > > kern.err: deviceless supply vdd_arm not found, using dummy regulator > kern.err: exynos-cpufreq exynos-cpufreq: failed to set cpu voltage to 1287500 > kern.err: cpufreq: __target_index: Failed to change cpu frequency: -22 > > I reviewed the exynos_defconfig, which does not produce these runtime > errors. It was obvious that the exynos_defconfig has the PMIC drivers > enabled, whereas the multi_v7_defconfig does not. This patch has been tested > on a odroid-u2 and a odroid-u3 board. It has resolved the runtime errors. > Therefore, I purpose we enabled these drivers in the multi_v7_defconfig. > > [1] http://www.hardkernel.com/main/products/prdt_info.php?g_code=G135270682824 > [2] http://storage.armcloud.us/kernel-ci/mainline/v3.18-rc7-48-g7cc78f8/arm-multi_v7_defconfig/lab-tbaker-00/boot-exynos4412-odroidu3.html > FWIW, the 5250-based Samsung Chromebook also uses 77686. Applied to next/defconfig for 3.19 after fixing up some fuzz. -Olof -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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