RE: [PATCH] ARM: imx_v6_v7_defconfig: Enable cpufreq governors
From: A.S. Dong
Date: Tue May 02 2017 - 23:48:18 EST
> -----Original Message-----
> From: Leonard Crestez [mailto:leonard.crestez@xxxxxxx]
> Sent: Tuesday, May 02, 2017 10:46 PM
> To: Shawn Guo
> Cc: Leonard Crestez; Sascha Hauer; Jagan Teki; Fabio Estevam; Dong Aisheng;
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-pm@xxxxxxxxxxxxxxx; linux-
> Subject: [PATCH] ARM: imx_v6_v7_defconfig: Enable cpufreq governors
> Enable more common cpufreq governors in imx defconfig because this is very
> useful for testing. In particular you can't use cpufreq-set -f $FREQ
> without explicitly defining CONFIG_CPU_FREQ_GOV_USERSPACE=y.
> Signed-off-by: Leonard Crestez <leonard.crestez@xxxxxxx>
Well, I think we do need this.
Acked-by: Dong Aisheng <aisheng.dong@xxxxxxx>
> It might make sense for all governors to be enabled by default from
> drivers/cpufreq/Kconfig and allow defconfigs to be shorter.
> Right now the descriptions for some of them includes a line that says "If
> in doubt, say Y" but the config options don't have actually have a default
> value defined and they effectively default to N.
> Cycling via savedefconfig on shawnguo/for-next also generates some
> reordering for some newly added options CONFIG_TOUCHSCREEN_MAX11801=y and
> CONFIG_HID_MULTITOUCH=y. Those were not included but it's strange that
> this happens. Maybe those options were inserted manually, or otherwise
> there is an annoying bug in kconfig?
> arch/arm/configs/imx_v6_v7_defconfig | 3 +++
> 1 file changed, 3 insertions(+)
> diff --git a/arch/arm/configs/imx_v6_v7_defconfig
> index bb6fa56..bf1e7e3 100644
> --- a/arch/arm/configs/imx_v6_v7_defconfig
> +++ b/arch/arm/configs/imx_v6_v7_defconfig
> @@ -55,6 +55,9 @@ CONFIG_CMDLINE="noinitrd console=ttymxc0,115200"