diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:51 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:51 +0000 |
commit | 6d03a247468059b0e59c821ef39e6762d4d6fc30 (patch) | |
tree | 17b9c00de2c62e68c965c742cdbc206f77a375da /drivers/ufs | |
parent | Releasing progress-linux version 6.8.12-1~progress7.99u1. (diff) | |
download | linux-6d03a247468059b0e59c821ef39e6762d4d6fc30.tar.xz linux-6d03a247468059b0e59c821ef39e6762d4d6fc30.zip |
Merging upstream version 6.9.2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/ufs')
-rw-r--r-- | drivers/ufs/core/ufs-mcq.c | 15 | ||||
-rw-r--r-- | drivers/ufs/core/ufs-sysfs.c | 49 | ||||
-rw-r--r-- | drivers/ufs/core/ufshcd.c | 98 | ||||
-rw-r--r-- | drivers/ufs/host/cdns-pltfrm.c | 2 | ||||
-rw-r--r-- | drivers/ufs/host/ufs-mediatek.c | 90 | ||||
-rw-r--r-- | drivers/ufs/host/ufs-mediatek.h | 7 | ||||
-rw-r--r-- | drivers/ufs/host/ufs-qcom.c | 30 | ||||
-rw-r--r-- | drivers/ufs/host/ufs-qcom.h | 12 |
8 files changed, 225 insertions, 78 deletions
diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c index 7ae3096814..768bf87cd8 100644 --- a/drivers/ufs/core/ufs-mcq.c +++ b/drivers/ufs/core/ufs-mcq.c @@ -258,9 +258,7 @@ EXPORT_SYMBOL_GPL(ufshcd_mcq_write_cqis); * Current MCQ specification doesn't provide a Task Tag or its equivalent in * the Completion Queue Entry. Find the Task Tag using an indirect method. */ -static int ufshcd_mcq_get_tag(struct ufs_hba *hba, - struct ufs_hw_queue *hwq, - struct cq_entry *cqe) +static int ufshcd_mcq_get_tag(struct ufs_hba *hba, struct cq_entry *cqe) { u64 addr; @@ -278,7 +276,7 @@ static void ufshcd_mcq_process_cqe(struct ufs_hba *hba, struct ufs_hw_queue *hwq) { struct cq_entry *cqe = ufshcd_mcq_cur_cqe(hwq); - int tag = ufshcd_mcq_get_tag(hba, hwq, cqe); + int tag = ufshcd_mcq_get_tag(hba, cqe); if (cqe->command_desc_base_addr) { ufshcd_compl_one_cqe(hba, tag, cqe); @@ -399,6 +397,12 @@ void ufshcd_mcq_enable_esi(struct ufs_hba *hba) } EXPORT_SYMBOL_GPL(ufshcd_mcq_enable_esi); +void ufshcd_mcq_enable(struct ufs_hba *hba) +{ + ufshcd_rmwl(hba, MCQ_MODE_SELECT, MCQ_MODE_SELECT, REG_UFS_MEM_CFG); +} +EXPORT_SYMBOL_GPL(ufshcd_mcq_enable); + void ufshcd_mcq_config_esi(struct ufs_hba *hba, struct msi_msg *msg) { ufshcd_writel(hba, msg->address_lo, REG_UFS_ESILBA); @@ -597,7 +601,8 @@ static bool ufshcd_mcq_sqe_search(struct ufs_hba *hba, addr = le64_to_cpu(cmd_desc_base_addr) & CQE_UCD_BA; while (sq_head_slot != hwq->sq_tail_slot) { - utrd = hwq->sqe_base_addr + sq_head_slot; + utrd = hwq->sqe_base_addr + + sq_head_slot * sizeof(struct utp_transfer_req_desc); match = le64_to_cpu(utrd->command_desc_base_addr) & CQE_UCD_BA; if (addr == match) { ufshcd_mcq_nullify_sqe(utrd); diff --git a/drivers/ufs/core/ufs-sysfs.c b/drivers/ufs/core/ufs-sysfs.c index e6d12289e0..3d049967f6 100644 --- a/drivers/ufs/core/ufs-sysfs.c +++ b/drivers/ufs/core/ufs-sysfs.c @@ -405,6 +405,53 @@ static ssize_t wb_flush_threshold_store(struct device *dev, return count; } +/** + * pm_qos_enable_show - sysfs handler to show pm qos enable value + * @dev: device associated with the UFS controller + * @attr: sysfs attribute handle + * @buf: buffer for sysfs file + * + * Print 1 if PM QoS feature is enabled, 0 if disabled. + * + * Returns number of characters written to @buf. + */ +static ssize_t pm_qos_enable_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ufs_hba *hba = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%d\n", hba->pm_qos_enabled); +} + +/** + * pm_qos_enable_store - sysfs handler to store value + * @dev: device associated with the UFS controller + * @attr: sysfs attribute handle + * @buf: buffer for sysfs file + * @count: stores buffer characters count + * + * Input 0 to disable PM QoS and 1 value to enable. + * Default state: 1 + * + * Return: number of characters written to @buf on success, < 0 upon failure. + */ +static ssize_t pm_qos_enable_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct ufs_hba *hba = dev_get_drvdata(dev); + bool value; + + if (kstrtobool(buf, &value)) + return -EINVAL; + + if (value) + ufshcd_pm_qos_init(hba); + else + ufshcd_pm_qos_exit(hba); + + return count; +} + static DEVICE_ATTR_RW(rpm_lvl); static DEVICE_ATTR_RO(rpm_target_dev_state); static DEVICE_ATTR_RO(rpm_target_link_state); @@ -416,6 +463,7 @@ static DEVICE_ATTR_RW(wb_on); static DEVICE_ATTR_RW(enable_wb_buf_flush); static DEVICE_ATTR_RW(wb_flush_threshold); static DEVICE_ATTR_RW(rtc_update_ms); +static DEVICE_ATTR_RW(pm_qos_enable); static struct attribute *ufs_sysfs_ufshcd_attrs[] = { &dev_attr_rpm_lvl.attr, @@ -429,6 +477,7 @@ static struct attribute *ufs_sysfs_ufshcd_attrs[] = { &dev_attr_enable_wb_buf_flush.attr, &dev_attr_wb_flush_threshold.attr, &dev_attr_rtc_update_ms.attr, + &dev_attr_pm_qos_enable.attr, NULL }; diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 24b54aa094..a0f8e93016 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -1015,6 +1015,48 @@ static bool ufshcd_is_unipro_pa_params_tuning_req(struct ufs_hba *hba) } /** + * ufshcd_pm_qos_init - initialize PM QoS request + * @hba: per adapter instance + */ +void ufshcd_pm_qos_init(struct ufs_hba *hba) +{ + + if (hba->pm_qos_enabled) + return; + + cpu_latency_qos_add_request(&hba->pm_qos_req, PM_QOS_DEFAULT_VALUE); + + if (cpu_latency_qos_request_active(&hba->pm_qos_req)) + hba->pm_qos_enabled = true; +} + +/** + * ufshcd_pm_qos_exit - remove request from PM QoS + * @hba: per adapter instance + */ +void ufshcd_pm_qos_exit(struct ufs_hba *hba) +{ + if (!hba->pm_qos_enabled) + return; + + cpu_latency_qos_remove_request(&hba->pm_qos_req); + hba->pm_qos_enabled = false; +} + +/** + * ufshcd_pm_qos_update - update PM QoS request + * @hba: per adapter instance + * @on: If True, vote for perf PM QoS mode otherwise power save mode + */ +static void ufshcd_pm_qos_update(struct ufs_hba *hba, bool on) +{ + if (!hba->pm_qos_enabled) + return; + + cpu_latency_qos_update_request(&hba->pm_qos_req, on ? 0 : PM_QOS_DEFAULT_VALUE); +} + +/** * ufshcd_set_clk_freq - set UFS controller clock frequencies * @hba: per adapter instance * @scale_up: If True, set max possible frequency othewise set low frequency @@ -1160,8 +1202,11 @@ static int ufshcd_scale_clks(struct ufs_hba *hba, unsigned long freq, hba->devfreq->previous_freq); else ufshcd_set_clk_freq(hba, !scale_up); + goto out; } + ufshcd_pm_qos_update(hba, scale_up); + out: trace_ufshcd_profile_clk_scaling(dev_name(hba->dev), (scale_up ? "up" : "down"), @@ -4244,7 +4289,7 @@ static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd) * Make sure UIC command completion interrupt is disabled before * issuing UIC command. */ - ufshcd_readl(hba, REG_INTERRUPT_ENABLE); + wmb(); reenable_intr = true; } spin_unlock_irqrestore(hba->host->host_lock, flags); @@ -5604,7 +5649,6 @@ static void ufshcd_mcq_compl_pending_transfer(struct ufs_hba *hba, struct ufshcd_lrb *lrbp; struct scsi_cmnd *cmd; unsigned long flags; - u32 hwq_num, utag; int tag; for (tag = 0; tag < hba->nutrs; tag++) { @@ -5614,9 +5658,7 @@ static void ufshcd_mcq_compl_pending_transfer(struct ufs_hba *hba, test_bit(SCMD_STATE_COMPLETE, &cmd->state)) continue; - utag = blk_mq_unique_tag(scsi_cmd_to_rq(cmd)); - hwq_num = blk_mq_unique_tag_to_hwq(utag); - hwq = &hba->uhq[hwq_num]; + hwq = ufshcd_mcq_req_to_hwq(hba, scsi_cmd_to_rq(cmd)); if (force_compl) { ufshcd_mcq_compl_all_cqes_lock(hba, hwq); @@ -7989,11 +8031,13 @@ out: static inline void ufshcd_blk_pm_runtime_init(struct scsi_device *sdev) { + struct Scsi_Host *shost = sdev->host; + scsi_autopm_get_device(sdev); blk_pm_runtime_init(sdev->request_queue, &sdev->sdev_gendev); if (sdev->rpm_autosuspend) pm_runtime_set_autosuspend_delay(&sdev->sdev_gendev, - RPM_AUTOSUSPEND_DELAY_MS); + shost->rpm_autosuspend_delay); scsi_autopm_put_device(sdev); } @@ -8803,9 +8847,7 @@ static void ufshcd_config_mcq(struct ufs_hba *hba) hba->host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; hba->reserved_slot = hba->nutrs - UFSHCD_NUM_RESERVED; - /* Select MCQ mode */ - ufshcd_writel(hba, ufshcd_readl(hba, REG_UFS_MEM_CFG) | 0x1, - REG_UFS_MEM_CFG); + ufshcd_mcq_enable(hba); hba->mcq_enabled = true; dev_info(hba->dev, "MCQ configured, nr_queues=%d, io_queues=%d, read_queue=%d, poll_queues=%d, queue_depth=%d\n", @@ -9067,7 +9109,6 @@ static const struct scsi_host_template ufshcd_driver_template = { .track_queue_depth = 1, .skip_settle_delay = 1, .sdev_groups = ufshcd_driver_groups, - .rpm_autosuspend_delay = RPM_AUTOSUSPEND_DELAY_MS, }; static int ufshcd_config_vreg_load(struct device *dev, struct ufs_vreg *vreg, @@ -9282,6 +9323,8 @@ static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on) if (ret) return ret; + if (!ufshcd_is_clkscaling_supported(hba)) + ufshcd_pm_qos_update(hba, on); out: if (ret) { list_for_each_entry(clki, head, list) { @@ -9459,6 +9502,7 @@ out: static void ufshcd_hba_exit(struct ufs_hba *hba) { if (hba->is_powered) { + ufshcd_pm_qos_exit(hba); ufshcd_exit_clk_scaling(hba); ufshcd_exit_clk_gating(hba); if (hba->eh_wq) @@ -9478,7 +9522,17 @@ static int ufshcd_execute_start_stop(struct scsi_device *sdev, struct scsi_sense_hdr *sshdr) { const unsigned char cdb[6] = { START_STOP, 0, 0, 0, pwr_mode << 4, 0 }; + struct scsi_failure failure_defs[] = { + { + .allowed = 2, + .result = SCMD_FAILURE_RESULT_ANY, + }, + }; + struct scsi_failures failures = { + .failure_definitions = failure_defs, + }; const struct scsi_exec_args args = { + .failures = &failures, .sshdr = sshdr, .req_flags = BLK_MQ_REQ_PM, .scmd_flags = SCMD_FAIL_IF_RECOVERING, @@ -9504,7 +9558,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, struct scsi_sense_hdr sshdr; struct scsi_device *sdp; unsigned long flags; - int ret, retries; + int ret; spin_lock_irqsave(hba->host->host_lock, flags); sdp = hba->ufs_device_wlun; @@ -9530,15 +9584,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, * callbacks hence set the RQF_PM flag so that it doesn't resume the * already suspended childs. */ - for (retries = 3; retries > 0; --retries) { - ret = ufshcd_execute_start_stop(sdp, pwr_mode, &sshdr); - /* - * scsi_execute() only returns a negative value if the request - * queue is dying. - */ - if (ret <= 0) - break; - } + ret = ufshcd_execute_start_stop(sdp, pwr_mode, &sshdr); if (ret) { sdev_printk(KERN_WARNING, sdp, "START_STOP failed for power mode: %d, result %x\n", @@ -10114,6 +10160,7 @@ static int ufshcd_suspend(struct ufs_hba *hba) ufshcd_vreg_set_lpm(hba); /* Put the host controller in low power mode if possible */ ufshcd_hba_vreg_set_lpm(hba); + ufshcd_pm_qos_update(hba, false); return ret; } @@ -10353,7 +10400,7 @@ int ufshcd_system_restore(struct device *dev) * are updated with the latest queue addresses. Only after * updating these addresses, we can queue the new commands. */ - ufshcd_readl(hba, REG_UTP_TASK_REQ_LIST_BASE_H); + mb(); /* Resuming from hibernate, assume that link was OFF */ ufshcd_set_link_off(hba); @@ -10525,6 +10572,10 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) host->max_cmd_len = UFS_CDB_SIZE; host->queuecommand_may_block = !!(hba->caps & UFSHCD_CAP_CLK_GATING); + /* Use default RPM delay if host not set */ + if (host->rpm_autosuspend_delay == 0) + host->rpm_autosuspend_delay = RPM_AUTOSUSPEND_DELAY_MS; + hba->max_pwr_info.is_valid = false; /* Initialize work queues */ @@ -10570,7 +10621,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) * Make sure that UFS interrupts are disabled and any pending interrupt * status is cleared before registering UFS interrupt handler. */ - ufshcd_readl(hba, REG_INTERRUPT_ENABLE); + mb(); /* IRQ registration */ err = devm_request_irq(dev, irq, ufshcd_intr, IRQF_SHARED, UFSHCD, hba); @@ -10598,7 +10649,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) err = blk_mq_alloc_tag_set(&hba->tmf_tag_set); if (err < 0) goto out_remove_scsi_host; - hba->tmf_queue = blk_mq_init_queue(&hba->tmf_tag_set); + hba->tmf_queue = blk_mq_alloc_queue(&hba->tmf_tag_set, NULL, NULL); if (IS_ERR(hba->tmf_queue)) { err = PTR_ERR(hba->tmf_queue); goto free_tmf_tag_set; @@ -10660,6 +10711,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) ufs_sysfs_add_nodes(hba->dev); device_enable_async_suspend(dev); + ufshcd_pm_qos_init(hba); return 0; free_tmf_queue: diff --git a/drivers/ufs/host/cdns-pltfrm.c b/drivers/ufs/host/cdns-pltfrm.c index 66811d8d19..bb30267da4 100644 --- a/drivers/ufs/host/cdns-pltfrm.c +++ b/drivers/ufs/host/cdns-pltfrm.c @@ -136,7 +136,7 @@ static int cdns_ufs_set_hclkdiv(struct ufs_hba *hba) * Make sure the register was updated, * UniPro layer will not work with an incorrect value. */ - ufshcd_readl(hba, CDNS_UFS_REG_HCLKDIV); + mb(); return 0; } diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 776bca4f70..b8a8801322 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -17,7 +17,6 @@ #include <linux/of_platform.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> -#include <linux/pm_qos.h> #include <linux/regulator/consumer.h> #include <linux/reset.h> #include <linux/soc/mediatek/mtk_sip_svc.h> @@ -626,21 +625,9 @@ static void ufs_mtk_init_host_caps(struct ufs_hba *hba) dev_info(hba->dev, "caps: 0x%x", host->caps); } -static void ufs_mtk_boost_pm_qos(struct ufs_hba *hba, bool boost) -{ - struct ufs_mtk_host *host = ufshcd_get_variant(hba); - - if (!host || !host->pm_qos_init) - return; - - cpu_latency_qos_update_request(&host->pm_qos_req, - 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) @@ -660,6 +647,45 @@ static void ufs_mtk_pwr_ctrl(struct ufs_hba *hba, bool on) } } +static void ufs_mtk_mcq_disable_irq(struct ufs_hba *hba) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + u32 irq, i; + + if (!is_mcq_enabled(hba)) + return; + + if (host->mcq_nr_intr == 0) + return; + + for (i = 0; i < host->mcq_nr_intr; i++) { + irq = host->mcq_intr_info[i].irq; + disable_irq(irq); + } + host->is_mcq_intr_enabled = false; +} + +static void ufs_mtk_mcq_enable_irq(struct ufs_hba *hba) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + u32 irq, i; + + if (!is_mcq_enabled(hba)) + return; + + if (host->mcq_nr_intr == 0) + return; + + if (host->is_mcq_intr_enabled == true) + return; + + for (i = 0; i < host->mcq_nr_intr; i++) { + irq = host->mcq_intr_info[i].irq; + enable_irq(irq); + } + host->is_mcq_intr_enabled = true; +} + /** * ufs_mtk_setup_clocks - enables/disable clocks * @hba: host controller instance @@ -703,8 +729,10 @@ static int ufs_mtk_setup_clocks(struct ufs_hba *hba, bool on, if (clk_pwr_off) ufs_mtk_pwr_ctrl(hba, false); + ufs_mtk_mcq_disable_irq(hba); } else if (on && status == POST_CHANGE) { ufs_mtk_pwr_ctrl(hba, true); + ufs_mtk_mcq_enable_irq(hba); } return ret; @@ -893,6 +921,7 @@ static int ufs_mtk_init(struct ufs_hba *hba) const struct of_device_id *id; struct device *dev = hba->dev; struct ufs_mtk_host *host; + struct Scsi_Host *shost = hba->host; int err = 0; host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL); @@ -937,6 +966,9 @@ static int ufs_mtk_init(struct ufs_hba *hba) /* Enable clk scaling*/ hba->caps |= UFSHCD_CAP_CLK_SCALING; + /* Set runtime pm delay to replace default */ + shost->rpm_autosuspend_delay = MTK_RPM_AUTOSUSPEND_DELAY_MS; + hba->quirks |= UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL; hba->quirks |= UFSHCD_QUIRK_MCQ_BROKEN_INTR; hba->quirks |= UFSHCD_QUIRK_MCQ_BROKEN_RTC; @@ -959,10 +991,6 @@ 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: @@ -1206,25 +1234,29 @@ static int ufs_mtk_link_set_hpm(struct ufs_hba *hba) return err; err = ufshcd_uic_hibern8_exit(hba); - if (!err) - ufshcd_set_link_active(hba); - else + if (err) return err; - if (!hba->mcq_enabled) { - err = ufshcd_make_hba_operational(hba); - } else { - ufs_mtk_config_mcq(hba, false); - ufshcd_mcq_make_queues_operational(hba); - ufshcd_mcq_config_mac(hba, hba->nutrs); - /* Enable MCQ mode */ - ufshcd_writel(hba, ufshcd_readl(hba, REG_UFS_MEM_CFG) | 0x1, - REG_UFS_MEM_CFG); + /* Check link state to make sure exit h8 success */ + ufs_mtk_wait_idle_state(hba, 5); + err = ufs_mtk_wait_link_state(hba, VS_LINK_UP, 100); + if (err) { + dev_warn(hba->dev, "exit h8 state fail, err=%d\n", err); + return err; } + ufshcd_set_link_active(hba); + err = ufshcd_make_hba_operational(hba); if (err) return err; + if (is_mcq_enabled(hba)) { + ufs_mtk_config_mcq(hba, false); + ufshcd_mcq_make_queues_operational(hba); + ufshcd_mcq_config_mac(hba, hba->nutrs); + ufshcd_mcq_enable(hba); + } + return 0; } diff --git a/drivers/ufs/host/ufs-mediatek.h b/drivers/ufs/host/ufs-mediatek.h index f76e80d917..fb53882f42 100644 --- a/drivers/ufs/host/ufs-mediatek.h +++ b/drivers/ufs/host/ufs-mediatek.h @@ -7,7 +7,6 @@ #define _UFS_MEDIATEK_H #include <linux/bitops.h> -#include <linux/pm_qos.h> #include <linux/soc/mediatek/mtk_sip_svc.h> /* @@ -167,7 +166,6 @@ struct ufs_mtk_mcq_intr_info { struct ufs_mtk_host { struct phy *mphy; - struct pm_qos_request pm_qos_req; struct regulator *reg_va09; struct reset_control *hci_reset; struct reset_control *unipro_reset; @@ -178,7 +176,6 @@ struct ufs_mtk_host { struct ufs_mtk_hw_ver hw_ver; enum ufs_mtk_host_caps caps; bool mphy_powered_on; - bool pm_qos_init; bool unipro_lpm; bool ref_clk_enabled; u16 ref_clk_ungating_wait_us; @@ -186,10 +183,14 @@ struct ufs_mtk_host { u32 ip_ver; bool mcq_set_intr; + bool is_mcq_intr_enabled; int mcq_nr_intr; struct ufs_mtk_mcq_intr_info mcq_intr_info[UFSHCD_MAX_Q_NR]; }; +/* MTK delay of autosuspend: 500 ms */ +#define MTK_RPM_AUTOSUSPEND_DELAY_MS 500 + /* * Multi-VCC by Numbering */ diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index e5a4bf1c55..7a00004bfd 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -284,6 +284,9 @@ static void ufs_qcom_select_unipro_mode(struct ufs_qcom_host *host) if (host->hw_ver.major >= 0x05) ufshcd_rmwl(host->hba, QUNIPRO_G4_SEL, 0, REG_UFS_CFG0); + + /* make sure above configuration is applied before we return */ + mb(); } /* @@ -412,7 +415,7 @@ static void ufs_qcom_enable_hw_clk_gating(struct ufs_hba *hba) REG_UFS_CFG2); /* Ensure that HW clock gating is enabled before next operations */ - ufshcd_readl(hba, REG_UFS_CFG2); + mb(); } static int ufs_qcom_hce_enable_notify(struct ufs_hba *hba, @@ -504,7 +507,7 @@ static int ufs_qcom_cfg_timers(struct ufs_hba *hba, u32 gear, * make sure above write gets applied before we return from * this function. */ - ufshcd_readl(hba, REG_UFS_SYS1CLK_1US); + mb(); } return 0; @@ -855,15 +858,20 @@ static void ufs_qcom_set_phy_gear(struct ufs_qcom_host *host) struct ufs_host_params *host_params = &host->host_params; u32 val, dev_major; + /* + * Default to powering up the PHY to the max gear possible, which is + * backwards compatible with lower gears but not optimal from + * a power usage point of view. After device negotiation, if the + * gear is lower a reinit will be performed to program the PHY + * to the ideal gear for this combo of controller and device. + */ host->phy_gear = host_params->hs_tx_gear; if (host->hw_ver.major < 0x4) { /* - * For controllers whose major HW version is < 4, power up the - * PHY using minimum supported gear (UFS_HS_G2). Switching to - * max gear will be performed during reinit if supported. - * For newer controllers, whose major HW version is >= 4, power - * up the PHY using max supported gear. + * These controllers only have one PHY init sequence, + * let's power up the PHY using that (the minimum supported + * gear, UFS_HS_G2). */ host->phy_gear = UFS_HS_G2; } else if (host->hw_ver.major >= 0x5) { @@ -1726,8 +1734,8 @@ static int ufs_qcom_config_esi(struct ufs_hba *hba) * 2. Poll queues do not need ESI. */ nr_irqs = hba->nr_hw_queues - hba->nr_queues[HCTX_TYPE_POLL]; - ret = platform_msi_domain_alloc_irqs(hba->dev, nr_irqs, - ufs_qcom_write_msi_msg); + ret = platform_device_msi_init_and_alloc_irqs(hba->dev, nr_irqs, + ufs_qcom_write_msi_msg); if (ret) { dev_err(hba->dev, "Failed to request Platform MSI %d\n", ret); return ret; @@ -1756,7 +1764,7 @@ static int ufs_qcom_config_esi(struct ufs_hba *hba) devm_free_irq(hba->dev, desc->irq, hba); } msi_unlock_descs(hba->dev); - platform_msi_domain_free_irqs(hba->dev); + platform_device_msi_free_irqs_all(hba->dev); } else { if (host->hw_ver.major == 6 && host->hw_ver.minor == 0 && host->hw_ver.step == 0) @@ -1832,7 +1840,7 @@ static void ufs_qcom_remove(struct platform_device *pdev) pm_runtime_get_sync(&(pdev)->dev); ufshcd_remove(hba); - platform_msi_domain_free_irqs(hba->dev); + platform_device_msi_free_irqs_all(hba->dev); } static const struct of_device_id ufs_qcom_of_match[] __maybe_unused = { diff --git a/drivers/ufs/host/ufs-qcom.h b/drivers/ufs/host/ufs-qcom.h index b9de170983..9dd9a391eb 100644 --- a/drivers/ufs/host/ufs-qcom.h +++ b/drivers/ufs/host/ufs-qcom.h @@ -151,10 +151,10 @@ static inline void ufs_qcom_assert_reset(struct ufs_hba *hba) ufshcd_rmwl(hba, UFS_PHY_SOFT_RESET, UFS_PHY_SOFT_RESET, REG_UFS_CFG1); /* - * Dummy read to ensure the write takes effect before doing any sort - * of delay + * Make sure assertion of ufs phy reset is written to + * register before returning */ - ufshcd_readl(hba, REG_UFS_CFG1); + mb(); } static inline void ufs_qcom_deassert_reset(struct ufs_hba *hba) @@ -162,10 +162,10 @@ static inline void ufs_qcom_deassert_reset(struct ufs_hba *hba) ufshcd_rmwl(hba, UFS_PHY_SOFT_RESET, 0, REG_UFS_CFG1); /* - * Dummy read to ensure the write takes effect before doing any sort - * of delay + * Make sure de-assertion of ufs phy reset is written to + * register before returning */ - ufshcd_readl(hba, REG_UFS_CFG1); + mb(); } /* Host controller hardware version: major.minor.step */ |