Override devfreq parameters for power-performance
trade-off.
Signed-off-by: Asutosh Das <asutoshd@xxxxxxxxxxxxxx>
---
drivers/scsi/ufs/ufs-qcom.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 6115ac6..19aa5c4 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -10,6 +10,7 @@
#include <linux/phy/phy.h>
#include <linux/gpio/consumer.h>
#include <linux/reset-controller.h>
+#include <linux/devfreq.h>
#include "ufshcd.h"
#include "ufshcd-pltfrm.h"
@@ -1689,6 +1690,29 @@ static void ufs_qcom_device_reset(struct ufs_hba *hba)
usleep_range(10, 15);
}
+#if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND)
+static void ufs_qcom_config_scaling_param(struct ufs_hba *hba,
+ struct devfreq_dev_profile *p,
+ void *data)
+{
+ static struct devfreq_simple_ondemand_data *d;
+
+ if (!data)
+ return;
+
+ d = (struct devfreq_simple_ondemand_data *)data;
+ p->polling_ms = 60;
+ d->upthreshold = 70;
+ d->downdifferential = 5;
+}
+#else
+static void ufs_qcom_config_scaling_param(struct ufs_hba *hba,
+ struct devfreq_dev_profile *p,
+ void *data)
+{
+}
+#endif
+
/**
* struct ufs_hba_qcom_vops - UFS QCOM specific variant operations
*
@@ -1710,6 +1734,7 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = {
.resume = ufs_qcom_resume,
.dbg_register_dump = ufs_qcom_dump_dbg_regs,
.device_reset = ufs_qcom_device_reset,
+ .config_scaling_param = ufs_qcom_config_scaling_param,
};
/**
--
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