diff mbox series

[v1,3/3] scsi: ufs-qcom: Override devfreq parameters

Message ID 8595b24c49bd84974ced1fec5a8eecdeeae47746.1585094538.git.asutoshd@codeaurora.org (mailing list archive)
State Accepted
Headers show
Series [v1,1/3] scsi: ufshcd: Update the set frequency to devfreq | expand

Commit Message

Asutosh Das (asd) March 25, 2020, 12:07 a.m. UTC 
Override devfreq parameters for power-performance
trade-off.

Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
---
 drivers/scsi/ufs/ufs-qcom.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

Comments

Avri Altman March 25, 2020, 1:11 p.m. UTC | #1 
> 
> Override devfreq parameters for power-performance
> trade-off.
> 
> Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
diff mbox series

Patch

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 6115ac6..0fb17e2 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 +1690,21 @@  static void ufs_qcom_device_reset(struct ufs_hba *hba)
 	usleep_range(10, 15);
 }
 
+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 = 65;
+}
+
 /**
  * struct ufs_hba_qcom_vops - UFS QCOM specific variant operations
  *
@@ -1710,6 +1726,7 @@  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,
 };
 
 /**