2016-01-09 19:19 GMT+09:00 Sriram V <vshrirama@xxxxxxxxx>: > > Hello, > > I am trying to power down power domains which are not used but i am > unable to do so unless i write manually into the registers. > > Can anyone help me on the standard way to power down power domains on > a exynos 5422. > > I tried marking status /bts-status to disable in the device tree file > for pd-disp1, but that does not help. > > What is the standard way of powering down if they are not used. Do we > need to do using dt or somewhere in the kernel board file? Hi, The domains defined in DT (and enabled in DT... status=disabled marks the *node* as disabled, not the power domain) are automatically turned off when attached devices are runtime suspended. Use PM_DEBUG+PM_ADVANCED_DEBUG and then: cat /sys/kernel/debug/pm_genpd/pm_genpd_summary Domains not present there are not defined so they are left in default status set by bootloader (probably on). BR, Krzysztof -- 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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