diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/ufs/ufs-qcom.c | 1 | ||||
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 104 | ||||
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.h | 98 |
3 files changed, 137 insertions, 66 deletions
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c index 64c54b79051e..329ac846befe 100644 --- a/drivers/scsi/ufs/ufs-qcom.c +++ b/drivers/scsi/ufs/ufs-qcom.c @@ -1049,6 +1049,5 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = { .suspend = ufs_qcom_suspend, .resume = ufs_qcom_resume, }; -EXPORT_SYMBOL(ufs_hba_qcom_vops); MODULE_LICENSE("GPL v2"); diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index b0ade73f8c6a..9e79c33ea897 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -271,10 +271,8 @@ static inline u32 ufshcd_get_intr_mask(struct ufs_hba *hba) */ static inline u32 ufshcd_get_ufs_version(struct ufs_hba *hba) { - if (hba->quirks & UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION) { - if (hba->vops && hba->vops->get_ufs_hci_version) - return hba->vops->get_ufs_hci_version(hba); - } + if (hba->quirks & UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION) + return ufshcd_vops_get_ufs_hci_version(hba); return ufshcd_readl(hba, REG_UFS_VERSION); } @@ -2473,9 +2471,8 @@ static int ufshcd_change_power_mode(struct ufs_hba *hba, dev_err(hba->dev, "%s: power mode change failed %d\n", __func__, ret); } else { - if (hba->vops && hba->vops->pwr_change_notify) - hba->vops->pwr_change_notify(hba, - POST_CHANGE, NULL, pwr_mode); + ufshcd_vops_pwr_change_notify(hba, POST_CHANGE, NULL, + pwr_mode); memcpy(&hba->pwr_info, pwr_mode, sizeof(struct ufs_pa_layer_attr)); @@ -2495,10 +2492,10 @@ static int ufshcd_config_pwr_mode(struct ufs_hba *hba, struct ufs_pa_layer_attr final_params = { 0 }; int ret; - if (hba->vops && hba->vops->pwr_change_notify) - hba->vops->pwr_change_notify(hba, - PRE_CHANGE, desired_pwr_mode, &final_params); - else + ret = ufshcd_vops_pwr_change_notify(hba, PRE_CHANGE, + desired_pwr_mode, &final_params); + + if (ret) memcpy(&final_params, desired_pwr_mode, sizeof(final_params)); ret = ufshcd_change_power_mode(hba, &final_params); @@ -2647,8 +2644,7 @@ static int ufshcd_hba_enable(struct ufs_hba *hba) /* UniPro link is disabled at this point */ ufshcd_set_link_off(hba); - if (hba->vops && hba->vops->hce_enable_notify) - hba->vops->hce_enable_notify(hba, PRE_CHANGE); + ufshcd_vops_hce_enable_notify(hba, PRE_CHANGE); /* start controller initialization sequence */ ufshcd_hba_start(hba); @@ -2681,8 +2677,7 @@ static int ufshcd_hba_enable(struct ufs_hba *hba) /* enable UIC related interrupts */ ufshcd_enable_intr(hba, UFSHCD_UIC_MASK); - if (hba->vops && hba->vops->hce_enable_notify) - hba->vops->hce_enable_notify(hba, POST_CHANGE); + ufshcd_vops_hce_enable_notify(hba, POST_CHANGE); return 0; } @@ -2735,8 +2730,7 @@ static int ufshcd_link_startup(struct ufs_hba *hba) int retries = DME_LINKSTARTUP_RETRIES; do { - if (hba->vops && hba->vops->link_startup_notify) - hba->vops->link_startup_notify(hba, PRE_CHANGE); + ufshcd_vops_link_startup_notify(hba, PRE_CHANGE); ret = ufshcd_dme_link_startup(hba); @@ -2767,11 +2761,9 @@ static int ufshcd_link_startup(struct ufs_hba *hba) } /* Include any host controller configuration via UIC commands */ - if (hba->vops && hba->vops->link_startup_notify) { - ret = hba->vops->link_startup_notify(hba, POST_CHANGE); - if (ret) - goto out; - } + ret = ufshcd_vops_link_startup_notify(hba, POST_CHANGE); + if (ret) + goto out; ret = ufshcd_make_hba_operational(hba); out: @@ -4578,8 +4570,7 @@ static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on, } } - if (hba->vops && hba->vops->setup_clocks) - ret = hba->vops->setup_clocks(hba, on); + ret = ufshcd_vops_setup_clocks(hba, on); out: if (ret) { list_for_each_entry(clki, head, list) { @@ -4645,27 +4636,22 @@ static int ufshcd_variant_hba_init(struct ufs_hba *hba) if (!hba->vops) goto out; - if (hba->vops->init) { - err = hba->vops->init(hba); - if (err) - goto out; - } + err = ufshcd_vops_init(hba); + if (err) + goto out; - if (hba->vops->setup_regulators) { - err = hba->vops->setup_regulators(hba, true); - if (err) - goto out_exit; - } + err = ufshcd_vops_setup_regulators(hba, true); + if (err) + goto out_exit; goto out; out_exit: - if (hba->vops->exit) - hba->vops->exit(hba); + ufshcd_vops_exit(hba); out: if (err) dev_err(hba->dev, "%s: variant %s init failed err %d\n", - __func__, hba->vops ? hba->vops->name : "", err); + __func__, ufshcd_get_var_name(hba), err); return err; } @@ -4674,14 +4660,11 @@ static void ufshcd_variant_hba_exit(struct ufs_hba *hba) if (!hba->vops) return; - if (hba->vops->setup_clocks) - hba->vops->setup_clocks(hba, false); + ufshcd_vops_setup_clocks(hba, false); - if (hba->vops->setup_regulators) - hba->vops->setup_regulators(hba, false); + ufshcd_vops_setup_regulators(hba, false); - if (hba->vops->exit) - hba->vops->exit(hba); + ufshcd_vops_exit(hba); } static int ufshcd_hba_init(struct ufs_hba *hba) @@ -5058,17 +5041,13 @@ disable_clks: * vendor specific host controller register space call them before the * host clocks are ON. */ - if (hba->vops && hba->vops->suspend) { - ret = hba->vops->suspend(hba, pm_op); - if (ret) - goto set_link_active; - } + ret = ufshcd_vops_suspend(hba, pm_op); + if (ret) + goto set_link_active; - if (hba->vops && hba->vops->setup_clocks) { - ret = hba->vops->setup_clocks(hba, false); - if (ret) - goto vops_resume; - } + ret = ufshcd_vops_setup_clocks(hba, false); + if (ret) + goto vops_resume; if (!ufshcd_is_link_active(hba)) ufshcd_setup_clocks(hba, false); @@ -5079,7 +5058,7 @@ disable_clks: hba->clk_gating.state = CLKS_OFF; /* * Disable the host irq as host controller as there won't be any - * host controller trasanction expected till resume. + * host controller transaction expected till resume. */ ufshcd_disable_irq(hba); /* Put the host controller in low power mode if possible */ @@ -5087,8 +5066,7 @@ disable_clks: goto out; vops_resume: - if (hba->vops && hba->vops->resume) - hba->vops->resume(hba, pm_op); + ufshcd_vops_resume(hba, pm_op); set_link_active: ufshcd_vreg_set_hpm(hba); if (ufshcd_is_link_hibern8(hba) && !ufshcd_uic_hibern8_exit(hba)) @@ -5144,11 +5122,9 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) * vendor specific host controller register space call them when the * host clocks are ON. */ - if (hba->vops && hba->vops->resume) { - ret = hba->vops->resume(hba, pm_op); - if (ret) - goto disable_vreg; - } + ret = ufshcd_vops_resume(hba, pm_op); + if (ret) + goto disable_vreg; if (ufshcd_is_link_hibern8(hba)) { ret = ufshcd_uic_hibern8_exit(hba); @@ -5189,8 +5165,7 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) set_old_link_state: ufshcd_link_state_transition(hba, old_link_state, 0); vendor_suspend: - if (hba->vops && hba->vops->suspend) - hba->vops->suspend(hba, pm_op); + ufshcd_vops_suspend(hba, pm_op); disable_vreg: ufshcd_vreg_set_lpm(hba); disable_irq_and_vops_clks: @@ -5463,8 +5438,7 @@ static int ufshcd_scale_clks(struct ufs_hba *hba, bool scale_up) dev_dbg(hba->dev, "%s: clk: %s, rate: %lu\n", __func__, clki->name, clk_get_rate(clki->clk)); } - if (hba->vops->clk_scale_notify) - hba->vops->clk_scale_notify(hba); + ufshcd_vops_clk_scale_notify(hba); out: return ret; } diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 54e7afb4a432..ce756266b0af 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -674,4 +674,102 @@ static inline int ufshcd_dme_peer_get(struct ufs_hba *hba, int ufshcd_hold(struct ufs_hba *hba, bool async); void ufshcd_release(struct ufs_hba *hba); + +/* Wrapper functions for safely calling variant operations */ +static inline const char *ufshcd_get_var_name(struct ufs_hba *hba) +{ + if (hba->vops) + return hba->vops->name; + return ""; +} + +static inline int ufshcd_vops_init(struct ufs_hba *hba) +{ + if (hba->vops && hba->vops->init) + return hba->vops->init(hba); + + return 0; +} + +static inline void ufshcd_vops_exit(struct ufs_hba *hba) +{ + if (hba->vops && hba->vops->exit) + return hba->vops->exit(hba); +} + +static inline u32 ufshcd_vops_get_ufs_hci_version(struct ufs_hba *hba) +{ + if (hba->vops && hba->vops->get_ufs_hci_version) + return hba->vops->get_ufs_hci_version(hba); + + return ufshcd_readl(hba, REG_UFS_VERSION); +} + +static inline void ufshcd_vops_clk_scale_notify(struct ufs_hba *hba) +{ + if (hba->vops && hba->vops->clk_scale_notify) + return hba->vops->clk_scale_notify(hba); +} + +static inline int ufshcd_vops_setup_clocks(struct ufs_hba *hba, bool on) +{ + if (hba->vops && hba->vops->setup_clocks) + return hba->vops->setup_clocks(hba, on); + + return 0; +} + +static inline int ufshcd_vops_setup_regulators(struct ufs_hba *hba, bool status) +{ + if (hba->vops && hba->vops->setup_regulators) + return hba->vops->setup_regulators(hba, status); + + return 0; +} + +static inline int ufshcd_vops_hce_enable_notify(struct ufs_hba *hba, + bool status) +{ + if (hba->vops && hba->vops->hce_enable_notify) + return hba->vops->hce_enable_notify(hba, status); + + return 0; +} +static inline int ufshcd_vops_link_startup_notify(struct ufs_hba *hba, + bool status) +{ + if (hba->vops && hba->vops->link_startup_notify) + return hba->vops->link_startup_notify(hba, status); + + return 0; +} + +static inline int ufshcd_vops_pwr_change_notify(struct ufs_hba *hba, + bool status, + struct ufs_pa_layer_attr *dev_max_params, + struct ufs_pa_layer_attr *dev_req_params) +{ + if (hba->vops && hba->vops->pwr_change_notify) + return hba->vops->pwr_change_notify(hba, status, + dev_max_params, dev_req_params); + + return -ENOTSUPP; +} + +static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op) +{ + if (hba->vops && hba->vops->suspend) + return hba->vops->suspend(hba, op); + + return 0; +} + +static inline int ufshcd_vops_resume(struct ufs_hba *hba, enum ufs_pm_op op) +{ + if (hba->vops && hba->vops->resume) + return hba->vops->resume(hba, op); + + return 0; +} + #endif /* End of Header */ |