#include <linux/module.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
-#include <linux/pm_qos.h>
#include <linux/rtc.h>
#include <linux/suspend.h>
#include <linux/seq_file.h>
#define PMC_MSG_DELAY_MIN_US 50
#define RESPONSE_REGISTER_LOOP_MAX 20000
-/* QoS request for letting CPUs in idle states, but not the deepest */
-#define AMD_PMC_MAX_IDLE_STATE_LATENCY 3
-
#define SOC_SUBSYSTEM_IP_MAX 12
#define DELAY_MIN_US 2000
#define DELAY_MAX_US 3000
struct device *dev;
struct pci_dev *rdev;
struct mutex lock; /* generic mutex lock */
- struct pm_qos_request amd_pmc_pm_qos_req;
#if IS_ENABLED(CONFIG_DEBUG_FS)
struct dentry *dbgfs_dir;
#endif /* CONFIG_DEBUG_FS */
rc = rtc_alarm_irq_enable(rtc_device, 0);
dev_dbg(pdev->dev, "wakeup timer programmed for %lld seconds\n", duration);
- /*
- * Prevent CPUs from getting into deep idle states while sending OS_HINT
- * which is otherwise generally safe to send when at least one of the CPUs
- * is not in deep idle states.
- */
- cpu_latency_qos_update_request(&pdev->amd_pmc_pm_qos_req, AMD_PMC_MAX_IDLE_STATE_LATENCY);
- wake_up_all_idle_cpus();
-
return rc;
}
rc = amd_pmc_verify_czn_rtc(pdev, &arg);
if (rc) {
dev_err(pdev->dev, "failed to set RTC: %d\n", rc);
- goto fail;
+ return;
}
}
rc = amd_pmc_send_cmd(pdev, arg, NULL, msg, 0);
if (rc) {
dev_err(pdev->dev, "suspend failed: %d\n", rc);
- goto fail;
+ return;
}
if (enable_stb)
rc = amd_pmc_write_stb(pdev, AMD_PMC_STB_PREDEF);
- if (rc) {
+ if (rc)
dev_err(pdev->dev, "error writing to STB: %d\n", rc);
- goto fail;
- }
- return;
-fail:
- if (pdev->cpu_id == AMD_CPU_ID_CZN)
- cpu_latency_qos_update_request(&pdev->amd_pmc_pm_qos_req,
- PM_QOS_DEFAULT_VALUE);
}
static void amd_pmc_s2idle_restore(void)
if (rc)
dev_err(pdev->dev, "error writing to STB: %d\n", rc);
- /* Restore the QoS request back to defaults if it was set */
- if (pdev->cpu_id == AMD_CPU_ID_CZN)
- cpu_latency_qos_update_request(&pdev->amd_pmc_pm_qos_req,
- PM_QOS_DEFAULT_VALUE);
-
/* Notify on failed entry */
amd_pmc_validate_deepest(pdev);
}
dev_warn(dev->dev, "failed to register LPS0 sleep handler, expect increased power consumption\n");
amd_pmc_dbgfs_register(dev);
- cpu_latency_qos_add_request(&dev->amd_pmc_pm_qos_req, PM_QOS_DEFAULT_VALUE);
return 0;
err_pci_dev_put: