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Merge "scsi: ufs-qcom: Configure LPM timer settings"

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qctecmdr 2020-03-16 22:55:50 -07:00 • committed by Gerrit - the friendly Code Review server
commit d1f345796a
2 changed files with 28 additions and 0 deletions
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23
drivers/scsi/ufs/ufs-qcom.c
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@ -6,6 +6,7 @@
#include <linux/acpi.h>
#include <linux/time.h>
#include <linux/of.h>
#include <linux/bitfield.h>
#include <linux/platform_device.h>
#include <linux/phy/phy.h>
#include <linux/gpio/consumer.h>
@ -1486,8 +1487,19 @@ out:
static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba)
{
unsigned long flags;
int err = 0;
spin_lock_irqsave(hba->host->host_lock, flags);
/* Set the rpm auto suspend delay to 3s */
hba->host->hostt->rpm_autosuspend_delay = UFS_QCOM_AUTO_SUSPEND_DELAY;
/* Set the default auto-hiberate idle timer value to 1ms */
hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 1) |
FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3);
/* Set the clock gating delay to performance mode */
hba->clk_gating.delay_ms = UFS_QCOM_CLK_GATING_DELAY_MS_PERF;
spin_unlock_irqrestore(hba->host->host_lock, flags);
if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_SAVECONFIGTIME)
err = ufs_qcom_quirk_host_pa_saveconfigtime(hba);
@ -2352,6 +2364,12 @@ out:
static int ufs_qcom_clk_scale_up_post_change(struct ufs_hba *hba)
{
unsigned long flags;
spin_lock_irqsave(hba->host->host_lock, flags);
hba->clk_gating.delay_ms = UFS_QCOM_CLK_GATING_DELAY_MS_PERF;
spin_unlock_irqrestore(hba->host->host_lock, flags);
return 0;
}
@ -2388,6 +2406,11 @@ static int ufs_qcom_clk_scale_down_post_change(struct ufs_hba *hba)
struct ufs_clk_info *clki;
struct list_head *head = &hba->clk_list_head;
u32 curr_freq = 0;
unsigned long flags;
spin_lock_irqsave(hba->host->host_lock, flags);
hba->clk_gating.delay_ms = UFS_QCOM_CLK_GATING_DELAY_MS_PWR_SAVE;
spin_unlock_irqrestore(hba->host->host_lock, flags);
if (!ufs_qcom_cap_qunipro(host))
return 0;

5
drivers/scsi/ufs/ufs-qcom.h
View file

@ -52,6 +52,11 @@
#define UFS_QCOM_LIMIT_DESIRED_MODE FAST
#define UFS_QCOM_LIMIT_PHY_SUBMODE UFS_QCOM_PHY_SUBMODE_G4
/* default value of auto suspend is 3 seconds */
#define UFS_QCOM_AUTO_SUSPEND_DELAY 3000
#define UFS_QCOM_CLK_GATING_DELAY_MS_PWR_SAVE 10
#define UFS_QCOM_CLK_GATING_DELAY_MS_PERF 50
/* QCOM UFS host controller vendor specific registers */
enum {
REG_UFS_SYS1CLK_1US = 0xC0,