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The current implementation of pmc_core_substate_res_show() is written specifically for Tiger Lake. However, new platform will also have sub-states and may support different modes. Therefore rewrite the code to handle sub-states generically. Obtain the number and type of enabled states form the PMC. Use the Low Power Mode (LPM) priority register to store the states in order from shallowest to deepest for displays. Add a for_each macro to simplify this. While changing the sub-state display it makes sense to show only the "enabled" sub-states instead of showing all possible ones. After this patch, the debugfs file looks like this: Substate Residency S0i2.0 0 S0i3.0 0 S0i2.1 9329279 S0i3.1 0 S0i3.2 0 Suggested-by: David E. Box <david.e.box@linux.intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com> Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com> Link: https://lore.kernel.org/r/20210417031252.3020837-4-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
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