When disabling clkscale via the clkscale_enable sysfs entry, UFS driver shall perform scaling up once regardless. Check if scaling up is required or not first to avoid repetitive work. Co-developed-by: Can Guo <quic_cang@xxxxxxxxxxx> Signed-off-by: Can Guo <quic_cang@xxxxxxxxxxx> Signed-off-by: Ziqi Chen <quic_ziqichen@xxxxxxxxxxx> --- drivers/ufs/core/ufshcd.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index e0fc198328a5..741ddf3a0cb5 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -1772,6 +1772,10 @@ static ssize_t ufshcd_clkscale_enable_store(struct device *dev, freq = clki->max_freq; ufshcd_suspend_clkscaling(hba); + + if (!ufshcd_is_devfreq_scaling_required(hba, freq, true)) + goto out_rel; + err = ufshcd_devfreq_scale(hba, freq, true); if (err) dev_err(hba->dev, "%s: failed to scale clocks up %d\n", -- 2.34.1
