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| author | David E. Box <david.e.box@linux.intel.com> | 2023-12-22 19:25:43 -0800 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2023-12-29 15:31:08 +0200 |
| commit | 7c13f365aee68b01e7e68ee293a71fdc7571c111 (patch) | |
| tree | 0eae8db8b4f3fab97ede84723962458e1fb6f2c6 | |
| parent | b28ff7a7c3245d7f62acc20f15b4361292fe4117 (diff) | |
| download | linux-7c13f365aee68b01e7e68ee293a71fdc7571c111.tar.gz | |
platform/x86/intel/pmc: Add suspend callback
Add a suspend callback to struct pmc for performing platform specific tasks
before device suspend. This is needed in order to perform GBE LTR ignore on
certain platforms at suspend-time instead of at probe-time and replace the
GBE LTR ignore removal that was done in order to fix a bug introduced by
commit 804951203aa5 ("platform/x86:intel/pmc: Combine core_init() and
core_configure()").
Fixes: 804951203aa5 ("platform/x86:intel/pmc: Combine core_init() and core_configure()")
Signed-off-by: "David E. Box" <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20231223032548.1680738-4-david.e.box@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
| -rw-r--r-- | drivers/platform/x86/intel/pmc/core.c | 3 | ||||
| -rw-r--r-- | drivers/platform/x86/intel/pmc/core.h | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c index e95d3011b9997..5ab470d87ad7e 100644 --- a/drivers/platform/x86/intel/pmc/core.c +++ b/drivers/platform/x86/intel/pmc/core.c @@ -1279,6 +1279,9 @@ static __maybe_unused int pmc_core_suspend(struct device *dev) struct pmc_dev *pmcdev = dev_get_drvdata(dev); struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + if (pmcdev->suspend) + pmcdev->suspend(pmcdev); + /* Check if the syspend will actually use S0ix */ if (pm_suspend_via_firmware()) return 0; diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h index 0729f593c6a75..38d888e3afa63 100644 --- a/drivers/platform/x86/intel/pmc/core.h +++ b/drivers/platform/x86/intel/pmc/core.h @@ -363,6 +363,7 @@ struct pmc { * @s0ix_counter: S0ix residency (step adjusted) * @num_lpm_modes: Count of enabled modes * @lpm_en_modes: Array of enabled modes from lowest to highest priority + * @suspend: Function to perform platform specific suspend * @resume: Function to perform platform specific resume * * pmc_dev contains info about power management controller device. @@ -379,6 +380,7 @@ struct pmc_dev { u64 s0ix_counter; int num_lpm_modes; int lpm_en_modes[LPM_MAX_NUM_MODES]; + void (*suspend)(struct pmc_dev *pmcdev); int (*resume)(struct pmc_dev *pmcdev); bool has_die_c6; |