diff options
Diffstat (limited to 'drivers/ufs/host/ufs-mediatek.c')
| -rw-r--r-- | drivers/ufs/host/ufs-mediatek.c | 46 |
1 files changed, 33 insertions, 13 deletions
diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 9c5d1213c290..e756aba45acd 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1013,10 +1013,30 @@ static int ufs_mtk_link_set_lpm(struct ufs_hba *hba) return 0; } -static void ufs_mtk_vreg_set_lpm(struct ufs_hba *hba, bool lpm) +static void ufs_mtk_vccqx_set_lpm(struct ufs_hba *hba, bool lpm) { struct ufs_vreg *vccqx = NULL; + if (hba->vreg_info.vccq) + vccqx = hba->vreg_info.vccq; + else + vccqx = hba->vreg_info.vccq2; + + regulator_set_mode(vccqx->reg, + lpm ? REGULATOR_MODE_IDLE : REGULATOR_MODE_NORMAL); +} + +static void ufs_mtk_vsx_set_lpm(struct ufs_hba *hba, bool lpm) +{ + struct arm_smccc_res res; + + ufs_mtk_device_pwr_ctrl(!lpm, + (unsigned long)hba->dev_info.wspecversion, + res); +} + +static void ufs_mtk_dev_vreg_set_lpm(struct ufs_hba *hba, bool lpm) +{ if (!hba->vreg_info.vccq && !hba->vreg_info.vccq2) return; @@ -1032,13 +1052,13 @@ static void ufs_mtk_vreg_set_lpm(struct ufs_hba *hba, bool lpm) if (lpm && hba->vreg_info.vcc->enabled) return; - if (hba->vreg_info.vccq) - vccqx = hba->vreg_info.vccq; - else - vccqx = hba->vreg_info.vccq2; - - regulator_set_mode(vccqx->reg, - lpm ? REGULATOR_MODE_IDLE : REGULATOR_MODE_NORMAL); + if (lpm) { + ufs_mtk_vccqx_set_lpm(hba, lpm); + ufs_mtk_vsx_set_lpm(hba, lpm); + } else { + ufs_mtk_vsx_set_lpm(hba, lpm); + ufs_mtk_vccqx_set_lpm(hba, lpm); + } } static void ufs_mtk_auto_hibern8_disable(struct ufs_hba *hba) @@ -1105,7 +1125,7 @@ static int ufs_mtk_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) int err; if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) - ufs_mtk_vreg_set_lpm(hba, false); + ufs_mtk_dev_vreg_set_lpm(hba, false); err = ufs_mtk_mphy_power_on(hba, true); if (err) @@ -1284,7 +1304,7 @@ int ufs_mtk_system_suspend(struct device *dev) if (ret) return ret; - ufs_mtk_vreg_set_lpm(hba, true); + ufs_mtk_dev_vreg_set_lpm(hba, true); return 0; } @@ -1293,7 +1313,7 @@ int ufs_mtk_system_resume(struct device *dev) { struct ufs_hba *hba = dev_get_drvdata(dev); - ufs_mtk_vreg_set_lpm(hba, false); + ufs_mtk_dev_vreg_set_lpm(hba, false); return ufshcd_system_resume(dev); } @@ -1307,7 +1327,7 @@ int ufs_mtk_runtime_suspend(struct device *dev) if (ret) return ret; - ufs_mtk_vreg_set_lpm(hba, true); + ufs_mtk_dev_vreg_set_lpm(hba, true); return 0; } @@ -1316,7 +1336,7 @@ int ufs_mtk_runtime_resume(struct device *dev) { struct ufs_hba *hba = dev_get_drvdata(dev); - ufs_mtk_vreg_set_lpm(hba, false); + ufs_mtk_dev_vreg_set_lpm(hba, false); return ufshcd_runtime_resume(dev); } |