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UPSTREAM: scsi: ufs: ufs-mediatek: Fix performance scaling

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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>
Change-Id: Iaed7f5cbd9f3981d85b7e9d582c63b5052f52222
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>
Bug: 258234315
(cherry picked from commit 2873e0453b)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
This commit is contained in:
Peter Wang
2022-08-03 07:54:36 +08:00
committed by Alistair Delva
parent 12d5e685dc
commit 0e0d69ba97
1 changed files with 14 additions and 4 deletions
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18
drivers/ufs/host/ufs-mediatek.c
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@@ -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: