On Fri, Mar 17, 2017 at 09:50:07AM -0600, Mathieu Poirier wrote:
[...]
> If we don't check for "nohlt" some platform may freeze, others may work. If we
> mandate that "nohlt" be present on the kernel cmd line it works in all cases.
> As such mandating that "nohlt" be present is a better way to go.
Sure, so I will add below checking code in the probe function, please
let me know if you have alter better way to implement this:
+ if (IS_ENABLED(CONFIG_CPU_IDLE) &&
+ !strstr(boot_command_line, "nohlt")) {
+ dev_err(dev, "May not be accessible in CPU power domain.\n");
+ return -EPERM;
+ }
Thanks,
Leo Yan
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