diff options
| author | Peter Wang <peter.wang@mediatek.com> | 2022-08-03 02:54:36 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-08-23 05:58:30 +0300 |
| commit | 2873e0453b0165117bdc28dee3e38d69dd82f4c5 (patch) | |
| tree | 78964a9e2e7d0a4c3a44d4df1d26e55d63773a76 /drivers/ufs | |
| parent | 364893575d139546c5dc6255c12c72cdc929bf93 (diff) | |
| download | linux-2873e0453b0165117bdc28dee3e38d69dd82f4c5.tar.xz | |
scsi: ufs: ufs-mediatek: Fix performance scaling
If clk-scaling is enabled, performance scaling can be bound to the decision
of clk-scaling to avoid unnecessary boosting.
In addition, fix missing initialization of pm-qos request.
Link: https://lore.kernel.org/r/20220802235437.4547-5-stanley.chu@mediatek.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ufs')
| -rw-r--r-- | drivers/ufs/host/ufs-mediatek.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 2b85d2406714..e1f131a93792 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -635,6 +635,12 @@ static void ufs_mtk_boost_pm_qos(struct ufs_hba *hba, bool boost) boost ? 0 : PM_QOS_DEFAULT_VALUE); } +static void ufs_mtk_scale_perf(struct ufs_hba *hba, bool scale_up) +{ + ufs_mtk_boost_crypt(hba, scale_up); + ufs_mtk_boost_pm_qos(hba, scale_up); +} + static void ufs_mtk_pwr_ctrl(struct ufs_hba *hba, bool on) { struct ufs_mtk_host *host = ufshcd_get_variant(hba); @@ -642,11 +648,11 @@ static void ufs_mtk_pwr_ctrl(struct ufs_hba *hba, bool on) if (on) { phy_power_on(host->mphy); ufs_mtk_setup_ref_clk(hba, on); - ufs_mtk_boost_crypt(hba, on); - ufs_mtk_boost_pm_qos(hba, on); + if (!ufshcd_is_clkscaling_supported(hba)) + ufs_mtk_scale_perf(hba, on); } else { - ufs_mtk_boost_pm_qos(hba, on); - ufs_mtk_boost_crypt(hba, on); + if (!ufshcd_is_clkscaling_supported(hba)) + ufs_mtk_scale_perf(hba, on); ufs_mtk_setup_ref_clk(hba, on); phy_power_off(host->mphy); } @@ -870,6 +876,10 @@ static int ufs_mtk_init(struct ufs_hba *hba) host->ip_ver = ufshcd_readl(hba, REG_UFS_MTK_IP_VER); + /* Initialize pm-qos request */ + cpu_latency_qos_add_request(&host->pm_qos_req, PM_QOS_DEFAULT_VALUE); + host->pm_qos_init = true; + goto out; out_variant_clear: |