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platform/x86/intel/pmc: Add resume callback

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Add a resume callback to perform platform specific functions during resume
from suspend.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20230607233849.239047-1-david.e.box@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
David E. Box 2023-06-07 16:38:48 -07:00 committed by Hans de Goede
parent f999e23ce6
commit 801e5dc985
2 changed files with 15 additions and 2 deletions
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14
drivers/platform/x86/intel/pmc/core.c
View File

@ -1222,11 +1222,11 @@ static inline bool pmc_core_is_s0ix_failed(struct pmc_dev *pmcdev)
return false;
}
static __maybe_unused int pmc_core_resume(struct device *dev)
int pmc_core_resume_common(struct pmc_dev *pmcdev)
{
struct pmc_dev *pmcdev = dev_get_drvdata(dev);
const struct pmc_bit_map **maps = pmcdev->map->lpm_sts;
int offset = pmcdev->map->lpm_status_offset;
struct device *dev = &pmcdev->pdev->dev;
/* Check if the syspend used S0ix */
if (pm_suspend_via_firmware())
@ -1256,6 +1256,16 @@ static __maybe_unused int pmc_core_resume(struct device *dev)
return 0;
}
static __maybe_unused int pmc_core_resume(struct device *dev)
{
struct pmc_dev *pmcdev = dev_get_drvdata(dev);
if (pmcdev->resume)
return pmcdev->resume(pmcdev);
return pmc_core_resume_common(pmcdev);
}
static const struct dev_pm_ops pmc_core_pm_ops = {
SET_LATE_SYSTEM_SLEEP_PM_OPS(pmc_core_suspend, pmc_core_resume)
};

3
drivers/platform/x86/intel/pmc/core.h
View File

@ -327,6 +327,7 @@ struct pmc_reg_map {
* @lpm_en_modes: Array of enabled modes from lowest to highest priority
* @lpm_req_regs: List of substate requirements
* @core_configure: Function pointer to configure the platform
* @resume: Function to perform platform specific resume
*
* pmc_dev contains info about power management controller device.
*/
@ -345,6 +346,7 @@ struct pmc_dev {
int lpm_en_modes[LPM_MAX_NUM_MODES];
u32 *lpm_req_regs;
void (*core_configure)(struct pmc_dev *pmcdev);
int (*resume)(struct pmc_dev *pmcdev);
};
extern const struct pmc_bit_map msr_map[];
@ -398,6 +400,7 @@ extern const struct pmc_reg_map mtl_reg_map;
extern void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev);
extern int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value);
int pmc_core_resume_common(struct pmc_dev *pmcdev);
void spt_core_init(struct pmc_dev *pmcdev);
void cnp_core_init(struct pmc_dev *pmcdev);
void icl_core_init(struct pmc_dev *pmcdev);