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-rw-r--r--drivers/ufs/core/ufs-sysfs.c3
-rw-r--r--drivers/ufs/core/ufshcd.c8
-rw-r--r--drivers/ufs/host/ufs-qcom.c2
3 files changed, 8 insertions, 5 deletions
diff --git a/drivers/ufs/core/ufs-sysfs.c b/drivers/ufs/core/ufs-sysfs.c
index 0a088b47d557..7f41f2a69b04 100644
--- a/drivers/ufs/core/ufs-sysfs.c
+++ b/drivers/ufs/core/ufs-sysfs.c
@@ -225,7 +225,8 @@ static ssize_t wb_on_store(struct device *dev, struct device_attribute *attr,
unsigned int wb_enable;
ssize_t res;
- if (!ufshcd_is_wb_allowed(hba) || ufshcd_is_clkscaling_supported(hba)) {
+ if (!ufshcd_is_wb_allowed(hba) || (ufshcd_is_clkscaling_supported(hba)
+ && ufshcd_enable_wb_if_scaling_up(hba))) {
/*
* If the platform supports UFSHCD_CAP_CLK_SCALING, turn WB
* on/off will be done while clock scaling up/down.
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 0391b66ed632..285e099385cd 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -1299,9 +1299,11 @@ static int ufshcd_devfreq_scale(struct ufs_hba *hba, bool scale_up)
}
/* Enable Write Booster if we have scaled up else disable it */
- downgrade_write(&hba->clk_scaling_lock);
- is_writelock = false;
- ufshcd_wb_toggle(hba, scale_up);
+ if (ufshcd_enable_wb_if_scaling_up(hba)) {
+ downgrade_write(&hba->clk_scaling_lock);
+ is_writelock = false;
+ ufshcd_wb_toggle(hba, scale_up);
+ }
out_unprepare:
ufshcd_clock_scaling_unprepare(hba, is_writelock);
diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index 473fad83701e..8ad1415e10b6 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -846,7 +846,7 @@ static void ufs_qcom_set_caps(struct ufs_hba *hba)
struct ufs_qcom_host *host = ufshcd_get_variant(hba);
hba->caps |= UFSHCD_CAP_CLK_GATING | UFSHCD_CAP_HIBERN8_WITH_CLK_GATING;
- hba->caps |= UFSHCD_CAP_CLK_SCALING;
+ hba->caps |= UFSHCD_CAP_CLK_SCALING | UFSHCD_CAP_WB_WITH_CLK_SCALING;
hba->caps |= UFSHCD_CAP_AUTO_BKOPS_SUSPEND;
hba->caps |= UFSHCD_CAP_WB_EN;
hba->caps |= UFSHCD_CAP_CRYPTO;