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-rw-r--r--drivers/scsi/ufs/Kconfig2
-rw-r--r--drivers/scsi/ufs/cdns-pltfrm.c2
-rw-r--r--drivers/scsi/ufs/ufs-hisi.c2
-rw-r--r--drivers/scsi/ufs/ufs-mediatek.c141
-rw-r--r--drivers/scsi/ufs/ufs-mediatek.h15
-rw-r--r--drivers/scsi/ufs/ufs-qcom.c146
-rw-r--r--drivers/scsi/ufs/ufs-sysfs.c28
-rw-r--r--drivers/scsi/ufs/ufs.h3
-rw-r--r--drivers/scsi/ufs/ufs_quirks.h1
-rw-r--r--drivers/scsi/ufs/ufshcd-pci.c2
-rw-r--r--drivers/scsi/ufs/ufshcd.c362
-rw-r--r--drivers/scsi/ufs/ufshcd.h205
-rw-r--r--drivers/scsi/ufs/unipro.h7
13 files changed, 570 insertions, 346 deletions
diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index d14c2243e02a..e2005aeddc2d 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -46,7 +46,7 @@ config SCSI_UFSHCD
The module will be called ufshcd.
To compile this driver as a module, choose M here and read
- <file:Documentation/scsi/ufs.txt>.
+ <file:Documentation/scsi/ufs.rst>.
However, do not compile this as a module if your root file system
(the one containing the directory /) is located on a UFS device.
diff --git a/drivers/scsi/ufs/cdns-pltfrm.c b/drivers/scsi/ufs/cdns-pltfrm.c
index 56a6a1ed5ec2..da065a259f6e 100644
--- a/drivers/scsi/ufs/cdns-pltfrm.c
+++ b/drivers/scsi/ufs/cdns-pltfrm.c
@@ -192,7 +192,7 @@ static int cdns_ufs_link_startup_notify(struct ufs_hba *hba,
* and device TX LCC are disabled once link startup is
* completed.
*/
- ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
+ ufshcd_disable_host_tx_lcc(hba);
/*
* Disabling Autohibern8 feature in cadence UFS
diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c
index 5d6487350a6c..074a6a055a4c 100644
--- a/drivers/scsi/ufs/ufs-hisi.c
+++ b/drivers/scsi/ufs/ufs-hisi.c
@@ -235,7 +235,7 @@ static int ufs_hisi_link_startup_pre_change(struct ufs_hba *hba)
ufshcd_writel(hba, reg, REG_AUTO_HIBERNATE_IDLE_TIMER);
/* Unipro PA_Local_TX_LCC_Enable */
- ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x155E, 0x0), 0x0);
+ ufshcd_disable_host_tx_lcc(hba);
/* close Unipro VS_Mk2ExtnSupport */
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD0AB, 0x0), 0x0);
ufshcd_dme_get(hba, UIC_ARG_MIB_SEL(0xD0AB, 0x0), &value);
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 53eae5fe2ade..40a66b31b31f 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -66,6 +66,21 @@ static void ufs_mtk_cfg_unipro_cg(struct ufs_hba *hba, bool enable)
}
}
+static int ufs_mtk_hce_enable_notify(struct ufs_hba *hba,
+ enum ufs_notify_change_status status)
+{
+ struct ufs_mtk_host *host = ufshcd_get_variant(hba);
+
+ if (status == PRE_CHANGE) {
+ if (host->unipro_lpm)
+ hba->hba_enable_delay_us = 0;
+ else
+ hba->hba_enable_delay_us = 600;
+ }
+
+ return 0;
+}
+
static int ufs_mtk_bind_mphy(struct ufs_hba *hba)
{
struct ufs_mtk_host *host = ufshcd_get_variant(hba);
@@ -107,6 +122,7 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on)
if (on) {
ufs_mtk_ref_clk_notify(on, res);
+ ufshcd_delay_us(host->ref_clk_ungating_wait_us, 10);
ufshcd_writel(hba, REFCLK_REQUEST, REG_UFS_REFCLK_CTRL);
} else {
ufshcd_writel(hba, REFCLK_RELEASE, REG_UFS_REFCLK_CTRL);
@@ -132,12 +148,40 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on)
out:
host->ref_clk_enabled = on;
- if (!on)
+ if (!on) {
+ ufshcd_delay_us(host->ref_clk_gating_wait_us, 10);
ufs_mtk_ref_clk_notify(on, res);
+ }
return 0;
}
+static void ufs_mtk_setup_ref_clk_wait_us(struct ufs_hba *hba,
+ u16 gating_us, u16 ungating_us)
+{
+ struct ufs_mtk_host *host = ufshcd_get_variant(hba);
+
+ if (hba->dev_info.clk_gating_wait_us) {
+ host->ref_clk_gating_wait_us =
+ hba->dev_info.clk_gating_wait_us;
+ } else {
+ host->ref_clk_gating_wait_us = gating_us;
+ }
+
+ host->ref_clk_ungating_wait_us = ungating_us;
+}
+
+static u32 ufs_mtk_link_get_state(struct ufs_hba *hba)
+{
+ u32 val;
+
+ ufshcd_writel(hba, 0x20, REG_UFS_DEBUG_SEL);
+ val = ufshcd_readl(hba, REG_UFS_PROBE);
+ val = val >> 28;
+
+ return val;
+}
+
/**
* ufs_mtk_setup_clocks - enables/disable clocks
* @hba: host controller instance
@@ -150,7 +194,7 @@ static int ufs_mtk_setup_clocks(struct ufs_hba *hba, bool on,
enum ufs_notify_change_status status)
{
struct ufs_mtk_host *host = ufshcd_get_variant(hba);
- int ret = -EINVAL;
+ int ret = 0;
/*
* In case ufs_mtk_init() is not yet done, simply ignore.
@@ -160,19 +204,24 @@ static int ufs_mtk_setup_clocks(struct ufs_hba *hba, bool on,
if (!host)
return 0;
- switch (status) {
- case PRE_CHANGE:
- if (!on) {
+ if (!on && status == PRE_CHANGE) {
+ if (!ufshcd_is_link_active(hba)) {
ufs_mtk_setup_ref_clk(hba, on);
ret = phy_power_off(host->mphy);
+ } else {
+ /*
+ * Gate ref-clk if link state is in Hibern8
+ * triggered by Auto-Hibern8.
+ */
+ if (!ufshcd_can_hibern8_during_gating(hba) &&
+ ufshcd_is_auto_hibern8_enabled(hba) &&
+ ufs_mtk_link_get_state(hba) ==
+ VS_LINK_HIBERN8)
+ ufs_mtk_setup_ref_clk(hba, on);
}
- break;
- case POST_CHANGE:
- if (on) {
- ret = phy_power_on(host->mphy);
- ufs_mtk_setup_ref_clk(hba, on);
- }
- break;
+ } else if (on && status == POST_CHANGE) {
+ ret = phy_power_on(host->mphy);
+ ufs_mtk_setup_ref_clk(hba, on);
}
return ret;
@@ -285,11 +334,36 @@ static int ufs_mtk_pwr_change_notify(struct ufs_hba *hba,
return ret;
}
+static int ufs_mtk_unipro_set_pm(struct ufs_hba *hba, u32 lpm)
+{
+ int ret;
+ struct ufs_mtk_host *host = ufshcd_get_variant(hba);
+
+ ret = ufshcd_dme_set(hba,
+ UIC_ARG_MIB_SEL(VS_UNIPROPOWERDOWNCONTROL, 0),
+ lpm);
+ if (!ret)
+ host->unipro_lpm = lpm;
+
+ return ret;
+}
+
static int ufs_mtk_pre_link(struct ufs_hba *hba)
{
int ret;
u32 tmp;
+ ufs_mtk_unipro_set_pm(hba, 0);
+
+ /*
+ * Setting PA_Local_TX_LCC_Enable to 0 before link startup
+ * to make sure that both host and device TX LCC are disabled
+ * once link startup is completed.
+ */
+ ret = ufshcd_disable_host_tx_lcc(hba);
+ if (ret)
+ return ret;
+
/* disable deep stall */
ret = ufshcd_dme_get(hba, UIC_ARG_MIB(VS_SAVEPOWERCONTROL), &tmp);
if (ret)
@@ -321,9 +395,6 @@ static void ufs_mtk_setup_clk_gating(struct ufs_hba *hba)
static int ufs_mtk_post_link(struct ufs_hba *hba)
{
- /* disable device LCC */
- ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
-
/* enable unipro clock gating feature */
ufs_mtk_cfg_unipro_cg(hba, true);
@@ -390,9 +461,7 @@ static int ufs_mtk_link_set_hpm(struct ufs_hba *hba)
if (err)
return err;
- err = ufshcd_dme_set(hba,
- UIC_ARG_MIB_SEL(VS_UNIPROPOWERDOWNCONTROL, 0),
- 0);
+ err = ufs_mtk_unipro_set_pm(hba, 0);
if (err)
return err;
@@ -413,14 +482,10 @@ static int ufs_mtk_link_set_lpm(struct ufs_hba *hba)
{
int err;
- err = ufshcd_dme_set(hba,
- UIC_ARG_MIB_SEL(VS_UNIPROPOWERDOWNCONTROL, 0),
- 1);
+ err = ufs_mtk_unipro_set_pm(hba, 1);
if (err) {
/* Resume UniPro state for following error recovery */
- ufshcd_dme_set(hba,
- UIC_ARG_MIB_SEL(VS_UNIPROPOWERDOWNCONTROL, 0),
- 0);
+ ufs_mtk_unipro_set_pm(hba, 0);
return err;
}
@@ -436,10 +501,11 @@ static int ufs_mtk_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
err = ufs_mtk_link_set_lpm(hba);
if (err)
return -EAGAIN;
- phy_power_off(host->mphy);
- ufs_mtk_setup_ref_clk(hba, false);
}
+ if (!ufshcd_is_link_active(hba))
+ phy_power_off(host->mphy);
+
return 0;
}
@@ -448,9 +514,10 @@ static int ufs_mtk_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
struct ufs_mtk_host *host = ufshcd_get_variant(hba);
int err;
- if (ufshcd_is_link_hibern8(hba)) {
- ufs_mtk_setup_ref_clk(hba, true);
+ if (!ufshcd_is_link_active(hba))
phy_power_on(host->mphy);
+
+ if (ufshcd_is_link_hibern8(hba)) {
err = ufs_mtk_link_set_hpm(hba);
if (err)
return err;
@@ -477,9 +544,24 @@ static void ufs_mtk_dbg_register_dump(struct ufs_hba *hba)
static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba)
{
struct ufs_dev_info *dev_info = &hba->dev_info;
+ u16 mid = dev_info->wmanufacturerid;
- if (dev_info->wmanufacturerid == UFS_VENDOR_SAMSUNG)
+ if (mid == UFS_VENDOR_SAMSUNG) {
+ hba->dev_quirks &= ~UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE;
ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TACTIVATE), 6);
+ }
+
+ /*
+ * Decide waiting time before gating reference clock and
+ * after ungating reference clock according to vendors'
+ * requirements.
+ */
+ if (mid == UFS_VENDOR_SAMSUNG)
+ ufs_mtk_setup_ref_clk_wait_us(hba, 1, 1);
+ else if (mid == UFS_VENDOR_SKHYNIX)
+ ufs_mtk_setup_ref_clk_wait_us(hba, 30, 30);
+ else if (mid == UFS_VENDOR_TOSHIBA)
+ ufs_mtk_setup_ref_clk_wait_us(hba, 100, 32);
return 0;
}
@@ -494,6 +576,7 @@ static struct ufs_hba_variant_ops ufs_hba_mtk_vops = {
.name = "mediatek.ufshci",
.init = ufs_mtk_init,
.setup_clocks = ufs_mtk_setup_clocks,
+ .hce_enable_notify = ufs_mtk_hce_enable_notify,
.link_startup_notify = ufs_mtk_link_startup_notify,
.pwr_change_notify = ufs_mtk_pwr_change_notify,
.apply_dev_quirks = ufs_mtk_apply_dev_quirks,
diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h
index fccdd979d6fb..5bbd3e9cbae2 100644
--- a/drivers/scsi/ufs/ufs-mediatek.h
+++ b/drivers/scsi/ufs/ufs-mediatek.h
@@ -54,6 +54,18 @@
#define VS_UNIPROPOWERDOWNCONTROL 0xD0A8
/*
+ * Vendor specific link state
+ */
+enum {
+ VS_LINK_DISABLED = 0,
+ VS_LINK_DOWN = 1,
+ VS_LINK_UP = 2,
+ VS_LINK_HIBERN8 = 3,
+ VS_LINK_LOST = 4,
+ VS_LINK_CFG = 5,
+};
+
+/*
* SiP commands
*/
#define MTK_SIP_UFS_CONTROL MTK_SIP_SMC_CMD(0x276)
@@ -79,7 +91,10 @@ enum {
struct ufs_mtk_host {
struct ufs_hba *hba;
struct phy *mphy;
+ bool unipro_lpm;
bool ref_clk_enabled;
+ u16 ref_clk_ungating_wait_us;
+ u16 ref_clk_gating_wait_us;
};
#endif /* !_UFS_MEDIATEK_H */
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index c69c29a1ceb9..19aa5c44e0da 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -10,6 +10,7 @@
#include <linux/phy/phy.h>
#include <linux/gpio/consumer.h>
#include <linux/reset-controller.h>
+#include <linux/devfreq.h>
#include "ufshcd.h"
#include "ufshcd-pltfrm.h"
@@ -38,7 +39,6 @@ enum {
static struct ufs_qcom_host *ufs_qcom_hosts[MAX_UFS_QCOM_HOSTS];
-static int ufs_qcom_set_bus_vote(struct ufs_qcom_host *host, int vote);
static void ufs_qcom_get_default_testbus_cfg(struct ufs_qcom_host *host);
static int ufs_qcom_set_dme_vs_core_clk_ctrl_clear_div(struct ufs_hba *hba,
u32 clk_cycles);
@@ -554,9 +554,7 @@ static int ufs_qcom_link_startup_notify(struct ufs_hba *hba,
* completed.
*/
if (ufshcd_get_local_unipro_ver(hba) != UFS_UNIPRO_VER_1_41)
- err = ufshcd_dme_set(hba,
- UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE),
- 0);
+ err = ufshcd_disable_host_tx_lcc(hba);
break;
case POST_CHANGE:
@@ -674,7 +672,7 @@ static void ufs_qcom_get_speed_mode(struct ufs_pa_layer_attr *p, char *result)
}
}
-static int ufs_qcom_set_bus_vote(struct ufs_qcom_host *host, int vote)
+static int __ufs_qcom_set_bus_vote(struct ufs_qcom_host *host, int vote)
{
int err = 0;
@@ -705,7 +703,7 @@ static int ufs_qcom_update_bus_bw_vote(struct ufs_qcom_host *host)
vote = ufs_qcom_get_bus_vote(host, mode);
if (vote >= 0)
- err = ufs_qcom_set_bus_vote(host, vote);
+ err = __ufs_qcom_set_bus_vote(host, vote);
else
err = vote;
@@ -716,6 +714,35 @@ static int ufs_qcom_update_bus_bw_vote(struct ufs_qcom_host *host)
return err;
}
+static int ufs_qcom_set_bus_vote(struct ufs_hba *hba, bool on)
+{
+ struct ufs_qcom_host *host = ufshcd_get_variant(hba);
+ int vote, err;
+
+ /*
+ * In case ufs_qcom_init() is not yet done, simply ignore.
+ * This ufs_qcom_set_bus_vote() shall be called from
+ * ufs_qcom_init() after init is done.
+ */
+ if (!host)
+ return 0;
+
+ if (on) {
+ vote = host->bus_vote.saved_vote;
+ if (vote == host->bus_vote.min_bw_vote)
+ ufs_qcom_update_bus_bw_vote(host);
+ } else {
+ vote = host->bus_vote.min_bw_vote;
+ }
+
+ err = __ufs_qcom_set_bus_vote(host, vote);
+ if (err)
+ dev_err(hba->dev, "%s: set bus vote failed %d\n",
+ __func__, err);
+
+ return err;
+}
+
static ssize_t
show_ufs_to_mem_max_bus_bw(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -792,7 +819,7 @@ static int ufs_qcom_update_bus_bw_vote(struct ufs_qcom_host *host)
return 0;
}
-static int ufs_qcom_set_bus_vote(struct ufs_qcom_host *host, int vote)
+static int ufs_qcom_set_bus_vote(struct ufs_hba *host, bool on)
{
return 0;
}
@@ -817,11 +844,27 @@ static void ufs_qcom_dev_ref_clk_ctrl(struct ufs_qcom_host *host, bool enable)
/*
* If we are here to disable this clock it might be immediately
* after entering into hibern8 in which case we need to make
- * sure that device ref_clk is active at least 1us after the
+ * sure that device ref_clk is active for specific time after
* hibern8 enter.
*/
- if (!enable)
- udelay(1);
+ if (!enable) {
+ unsigned long gating_wait;
+
+ gating_wait = host->hba->dev_info.clk_gating_wait_us;
+ if (!gating_wait) {
+ udelay(1);
+ } else {
+ /*
+ * bRefClkGatingWaitTime defines the minimum
+ * time for which the reference clock is
+ * required by device during transition from
+ * HS-MODE to LS-MODE or HIBERN8 state. Give it
+ * more delay to be on the safe side.
+ */
+ gating_wait += 10;
+ usleep_range(gating_wait, gating_wait + 10);
+ }
+ }
writel_relaxed(temp, host->dev_ref_clk_ctrl_mmio);
@@ -898,6 +941,20 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
if (!ufshcd_is_hs_mode(&hba->pwr_info) &&
ufshcd_is_hs_mode(dev_req_params))
ufs_qcom_dev_ref_clk_ctrl(host, true);
+
+ if (host->hw_ver.major >= 0x4) {
+ if (dev_req_params->gear_tx == UFS_HS_G4) {
+ /* INITIAL ADAPT */
+ ufshcd_dme_set(hba,
+ UIC_ARG_MIB(PA_TXHSADAPTTYPE),
+ PA_INITIAL_ADAPT);
+ } else {
+ /* NO ADAPT */
+ ufshcd_dme_set(hba,
+ UIC_ARG_MIB(PA_TXHSADAPTTYPE),
+ PA_NO_ADAPT);
+ }
+ }
break;
case POST_CHANGE:
if (ufs_qcom_cfg_timers(hba, dev_req_params->gear_rx,
@@ -956,6 +1013,9 @@ static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba)
if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_SAVECONFIGTIME)
err = ufs_qcom_quirk_host_pa_saveconfigtime(hba);
+ if (hba->dev_info.wmanufacturerid == UFS_VENDOR_WDC)
+ hba->dev_quirks |= UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE;
+
return err;
}
@@ -1030,8 +1090,7 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on,
enum ufs_notify_change_status status)
{
struct ufs_qcom_host *host = ufshcd_get_variant(hba);
- int err;
- int vote = 0;
+ int err = 0;
/*
* In case ufs_qcom_init() is not yet done, simply ignore.
@@ -1041,28 +1100,28 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on,
if (!host)
return 0;
- if (on && (status == POST_CHANGE)) {
- /* enable the device ref clock for HS mode*/
- if (ufshcd_is_hs_mode(&hba->pwr_info))
- ufs_qcom_dev_ref_clk_ctrl(host, true);
- vote = host->bus_vote.saved_vote;
- if (vote == host->bus_vote.min_bw_vote)
- ufs_qcom_update_bus_bw_vote(host);
-
- } else if (!on && (status == PRE_CHANGE)) {
- if (!ufs_qcom_is_link_active(hba)) {
- /* disable device ref_clk */
- ufs_qcom_dev_ref_clk_ctrl(host, false);
+ switch (status) {
+ case PRE_CHANGE:
+ if (on) {
+ err = ufs_qcom_set_bus_vote(hba, true);
+ } else {
+ if (!ufs_qcom_is_link_active(hba)) {
+ /* disable device ref_clk */
+ ufs_qcom_dev_ref_clk_ctrl(host, false);
+ }
}
-
- vote = host->bus_vote.min_bw_vote;
+ break;
+ case POST_CHANGE:
+ if (on) {
+ /* enable the device ref clock for HS mode*/
+ if (ufshcd_is_hs_mode(&hba->pwr_info))
+ ufs_qcom_dev_ref_clk_ctrl(host, true);
+ } else {
+ err = ufs_qcom_set_bus_vote(hba, false);
+ }
+ break;
}
- err = ufs_qcom_set_bus_vote(host, vote);
- if (err)
- dev_err(hba->dev, "%s: set bus vote failed %d\n",
- __func__, err);
-
return err;
}
@@ -1238,6 +1297,7 @@ static int ufs_qcom_init(struct ufs_hba *hba)
ufs_qcom_set_caps(hba);
ufs_qcom_advertise_quirks(hba);
+ ufs_qcom_set_bus_vote(hba, true);
ufs_qcom_setup_clocks(hba, true, POST_CHANGE);
if (hba->dev->id < MAX_UFS_QCOM_HOSTS)
@@ -1630,6 +1690,29 @@ static void ufs_qcom_device_reset(struct ufs_hba *hba)
usleep_range(10, 15);
}
+#if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND)
+static void ufs_qcom_config_scaling_param(struct ufs_hba *hba,
+ struct devfreq_dev_profile *p,
+ void *data)
+{
+ static struct devfreq_simple_ondemand_data *d;
+
+ if (!data)
+ return;
+
+ d = (struct devfreq_simple_ondemand_data *)data;
+ p->polling_ms = 60;
+ d->upthreshold = 70;
+ d->downdifferential = 5;
+}
+#else
+static void ufs_qcom_config_scaling_param(struct ufs_hba *hba,
+ struct devfreq_dev_profile *p,
+ void *data)
+{
+}
+#endif
+
/**
* struct ufs_hba_qcom_vops - UFS QCOM specific variant operations
*
@@ -1651,6 +1734,7 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = {
.resume = ufs_qcom_resume,
.dbg_register_dump = ufs_qcom_dump_dbg_regs,
.device_reset = ufs_qcom_device_reset,
+ .config_scaling_param = ufs_qcom_config_scaling_param,
};
/**
diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index dbdf8b01abed..92a63eebdca9 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -210,8 +210,10 @@ static ssize_t ufs_sysfs_read_desc_param(struct ufs_hba *hba,
if (param_size > 8)
return -EINVAL;
+ pm_runtime_get_sync(hba->dev);
ret = ufshcd_read_desc_param(hba, desc_id, desc_index,
param_offset, desc_buf, param_size);
+ pm_runtime_put_sync(hba->dev);
if (ret)
return -EINVAL;
switch (param_size) {
@@ -558,6 +560,7 @@ static ssize_t _name##_show(struct device *dev, \
desc_buf = kzalloc(QUERY_DESC_MAX_SIZE, GFP_ATOMIC); \
if (!desc_buf) \
return -ENOMEM; \
+ pm_runtime_get_sync(hba->dev); \
ret = ufshcd_query_descriptor_retry(hba, \
UPIU_QUERY_OPCODE_READ_DESC, QUERY_DESC_IDN_DEVICE, \
0, 0, desc_buf, &desc_len); \
@@ -574,6 +577,7 @@ static ssize_t _name##_show(struct device *dev, \
goto out; \
ret = snprintf(buf, PAGE_SIZE, "%s\n", desc_buf); \
out: \
+ pm_runtime_put_sync(hba->dev); \
kfree(desc_buf); \
return ret; \
} \
@@ -604,9 +608,13 @@ static ssize_t _name##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
bool flag; \
+ int ret; \
struct ufs_hba *hba = dev_get_drvdata(dev); \
- if (ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \
- QUERY_FLAG_IDN##_uname, &flag)) \
+ pm_runtime_get_sync(hba->dev); \
+ ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \
+ QUERY_FLAG_IDN##_uname, &flag); \
+ pm_runtime_put_sync(hba->dev); \
+ if (ret) \
return -EINVAL; \
return sprintf(buf, "%s\n", flag ? "true" : "false"); \
} \
@@ -644,8 +652,12 @@ static ssize_t _name##_show(struct device *dev, \
{ \
struct ufs_hba *hba = dev_get_drvdata(dev); \
u32 value; \
- if (ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR, \
- QUERY_ATTR_IDN##_uname, 0, 0, &value)) \
+ int ret; \
+ pm_runtime_get_sync(hba->dev); \
+ ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR, \
+ QUERY_ATTR_IDN##_uname, 0, 0, &value); \
+ pm_runtime_put_sync(hba->dev); \
+ if (ret) \
return -EINVAL; \
return sprintf(buf, "0x%08X\n", value); \
} \
@@ -766,9 +778,13 @@ static ssize_t dyn_cap_needed_attribute_show(struct device *dev,
struct scsi_device *sdev = to_scsi_device(dev);
struct ufs_hba *hba = shost_priv(sdev->host);
u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun);
+ int ret;
- if (ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR,
- QUERY_ATTR_IDN_DYN_CAP_NEEDED, lun, 0, &value))
+ pm_runtime_get_sync(hba->dev);
+ ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR,
+ QUERY_ATTR_IDN_DYN_CAP_NEEDED, lun, 0, &value);
+ pm_runtime_put_sync(hba->dev);
+ if (ret)
return -EINVAL;
return sprintf(buf, "0x%08X\n", value);
}
diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index cfe380348bf0..990cb48e2403 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -167,6 +167,7 @@ enum attr_idn {
QUERY_ATTR_IDN_FFU_STATUS = 0x14,
QUERY_ATTR_IDN_PSA_STATE = 0x15,
QUERY_ATTR_IDN_PSA_DATA_SIZE = 0x16,
+ QUERY_ATTR_IDN_REF_CLK_GATING_WAIT_TIME = 0x17,
};
/* Descriptor idn for Query requests */
@@ -534,6 +535,8 @@ struct ufs_dev_info {
u16 wmanufacturerid;
/*UFS device Product Name */
u8 *model;
+ u16 wspecversion;
+ u32 clk_gating_wait_us;
};
/**
diff --git a/drivers/scsi/ufs/ufs_quirks.h b/drivers/scsi/ufs/ufs_quirks.h
index d0ab147f98d3..df7a1e6805a3 100644
--- a/drivers/scsi/ufs/ufs_quirks.h
+++ b/drivers/scsi/ufs/ufs_quirks.h
@@ -15,6 +15,7 @@
#define UFS_VENDOR_TOSHIBA 0x198
#define UFS_VENDOR_SAMSUNG 0x1CE
#define UFS_VENDOR_SKHYNIX 0x1AD
+#define UFS_VENDOR_WDC 0x145
/**
* ufs_dev_fix - ufs device quirk info
diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index 3b19de3ae9a3..8f78a8151499 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -44,7 +44,7 @@ static int ufs_intel_disable_lcc(struct ufs_hba *hba)
ufshcd_dme_get(hba, attr, &lcc_enable);
if (lcc_enable)
- ufshcd_dme_set(hba, attr, 0);
+ ufshcd_disable_host_tx_lcc(hba);
return 0;
}
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 2d705694636c..e04e8b8bdca6 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -42,6 +42,7 @@
#include <linux/nls.h>
#include <linux/of.h>
#include <linux/bitfield.h>
+#include <linux/blk-pm.h>
#include "ufshcd.h"
#include "ufs_quirks.h"
#include "unipro.h"
@@ -91,6 +92,9 @@
/* default delay of autosuspend: 2000 ms */
#define RPM_AUTOSUSPEND_DELAY_MS 2000
+/* Default value of wait time before gating device ref clock */
+#define UFSHCD_REF_CLK_GATING_WAIT_US 0xFF /* microsecs */
+
#define ufshcd_toggle_vreg(_dev, _vreg, _on) \
({ \
int _ret; \
@@ -532,6 +536,18 @@ static void ufshcd_print_pwr_info(struct ufs_hba *hba)
hba->pwr_info.hs_rate);
}
+void ufshcd_delay_us(unsigned long us, unsigned long tolerance)
+{
+ if (!us)
+ return;
+
+ if (us < 10)
+ udelay(us);
+ else
+ usleep_range(us, us + tolerance);
+}
+EXPORT_SYMBOL_GPL(ufshcd_delay_us);
+
/*
* ufshcd_wait_for_register - wait for register value to change
* @hba - per-adapter interface
@@ -642,11 +658,7 @@ static inline int ufshcd_get_tr_ocs(struct ufshcd_lrb *lrbp)
*/
static inline void ufshcd_utrl_clear(struct ufs_hba *hba, u32 pos)
{
- if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR)
- ufshcd_writel(hba, (1 << pos), REG_UTP_TRANSFER_REQ_LIST_CLEAR);
- else
- ufshcd_writel(hba, ~(1 << pos),
- REG_UTP_TRANSFER_REQ_LIST_CLEAR);
+ ufshcd_writel(hba, ~(1 << pos), REG_UTP_TRANSFER_REQ_LIST_CLEAR);
}
/**
@@ -656,10 +668,7 @@ static inline void ufshcd_utrl_clear(struct ufs_hba *hba, u32 pos)
*/
static inline void ufshcd_utmrl_clear(struct ufs_hba *hba, u32 pos)
{
- if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR)
- ufshcd_writel(hba, (1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR);
- else
- ufshcd_writel(hba, ~(1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR);
+ ufshcd_writel(hba, ~(1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR);
}
/**
@@ -1191,6 +1200,9 @@ static int ufshcd_devfreq_target(struct device *dev,
if (!ufshcd_is_clkscaling_supported(hba))
return -EINVAL;
+ clki = list_first_entry(&hba->clk_list_head, struct ufs_clk_info, list);
+ /* Override with the closest supported frequency */
+ *freq = (unsigned long) clk_round_rate(clki->clk, *freq);
spin_lock_irqsave(hba->host->host_lock, irq_flags);
if (ufshcd_eh_in_progress(hba)) {
spin_unlock_irqrestore(hba->host->host_lock, irq_flags);
@@ -1205,8 +1217,11 @@ static int ufshcd_devfreq_target(struct device *dev,
goto out;
}
- clki = list_first_entry(&hba->clk_list_head, struct ufs_clk_info, list);
+ /* Decide based on the rounded-off frequency and update */
scale_up = (*freq == clki->max_freq) ? true : false;
+ if (!scale_up)
+ *freq = clki->min_freq;
+ /* Update the frequency */
if (!ufshcd_is_devfreq_scaling_required(hba, scale_up)) {
spin_unlock_irqrestore(hba->host->host_lock, irq_flags);
ret = 0;
@@ -1254,6 +1269,8 @@ static int ufshcd_devfreq_get_dev_status(struct device *dev,
struct ufs_hba *hba = dev_get_drvdata(dev);
struct ufs_clk_scaling *scaling = &hba->clk_scaling;
unsigned long flags;
+ struct list_head *clk_list = &hba->clk_list_head;
+ struct ufs_clk_info *clki;
if (!ufshcd_is_clkscaling_supported(hba))
return -EINVAL;
@@ -1264,6 +1281,13 @@ static int ufshcd_devfreq_get_dev_status(struct device *dev,
if (!scaling->window_start_t)
goto start_window;
+ clki = list_first_entry(clk_list, struct ufs_clk_info, list);
+ /*
+ * If current frequency is 0, then the ondemand governor considers
+ * there's no initial frequency set. And it always requests to set
+ * to max. frequency.
+ */
+ stat->current_frequency = clki->curr_freq;
if (scaling->is_busy_started)
scaling->tot_busy_t += ktime_to_us(ktime_sub(ktime_get(),
scaling->busy_start_t));
@@ -1292,6 +1316,17 @@ static struct devfreq_dev_profile ufs_devfreq_profile = {
.get_dev_status = ufshcd_devfreq_get_dev_status,
};
+#if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND)
+static struct devfreq_simple_ondemand_data ufs_ondemand_data = {
+ .upthreshold = 70,
+ .downdifferential = 5,
+};
+
+static void *gov_data = &ufs_ondemand_data;
+#else
+static void *gov_data; /* NULL */
+#endif
+
static int ufshcd_devfreq_init(struct ufs_hba *hba)
{
struct list_head *clk_list = &hba->clk_list_head;
@@ -1307,10 +1342,12 @@ static int ufshcd_devfreq_init(struct ufs_hba *hba)
dev_pm_opp_add(hba->dev, clki->min_freq, 0);
dev_pm_opp_add(hba->dev, clki->max_freq, 0);
+ ufshcd_vops_config_scaling_param(hba, &ufs_devfreq_profile,
+ gov_data);
devfreq = devfreq_add_device(hba->dev,
&ufs_devfreq_profile,
DEVFREQ_GOV_SIMPLE_ONDEMAND,
- NULL);
+ gov_data);
if (IS_ERR(devfreq)) {
ret = PTR_ERR(devfreq);
dev_err(hba->dev, "Unable to register with devfreq %d\n", ret);
@@ -1518,6 +1555,11 @@ start:
*/
if (ufshcd_can_hibern8_during_gating(hba) &&
ufshcd_is_link_hibern8(hba)) {
+ if (async) {
+ rc = -EAGAIN;
+ hba->clk_gating.active_reqs--;
+ break;
+ }
spin_unlock_irqrestore(hba->host->host_lock, flags);
flush_work(&hba->clk_gating.ungate_work);
spin_lock_irqsave(hba->host->host_lock, flags);
@@ -2093,13 +2135,8 @@ static int ufshcd_map_sg(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
return sg_segments;
if (sg_segments) {
- if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN)
- lrbp->utr_descriptor_ptr->prd_table_length =
- cpu_to_le16((u16)(sg_segments *
- sizeof(struct ufshcd_sg_entry)));
- else
- lrbp->utr_descriptor_ptr->prd_table_length =
- cpu_to_le16((u16) (sg_segments));
+ lrbp->utr_descriptor_ptr->prd_table_length =
+ cpu_to_le16((u16)sg_segments);
prd_table = (struct ufshcd_sg_entry *)lrbp->ucd_prdt_ptr;
@@ -2363,6 +2400,27 @@ static inline u16 ufshcd_upiu_wlun_to_scsi_wlun(u8 upiu_wlun_id)
return (upiu_wlun_id & ~UFS_UPIU_WLUN_ID) | SCSI_W_LUN_BASE;
}
+static void ufshcd_init_lrb(struct ufs_hba *hba, struct ufshcd_lrb *lrb, int i)
+{
+ struct utp_transfer_cmd_desc *cmd_descp = hba->ucdl_base_addr;
+ struct utp_transfer_req_desc *utrdlp = hba->utrdl_base_addr;
+ dma_addr_t cmd_desc_element_addr = hba->ucdl_dma_addr +
+ i * sizeof(struct utp_transfer_cmd_desc);
+ u16 response_offset = offsetof(struct utp_transfer_cmd_desc,
+ response_upiu);
+ u16 prdt_offset = offsetof(struct utp_transfer_cmd_desc, prd_table);
+
+ lrb->utr_descriptor_ptr = utrdlp + i;
+ lrb->utrd_dma_addr = hba->utrdl_dma_addr +
+ i * sizeof(struct utp_transfer_req_desc);
+ lrb->ucd_req_ptr = (struct utp_upiu_req *)(cmd_descp + i);
+ lrb->ucd_req_dma_addr = cmd_desc_element_addr;
+ lrb->ucd_rsp_ptr = (struct utp_upiu_rsp *)cmd_descp[i].response_upiu;
+ lrb->ucd_rsp_dma_addr = cmd_desc_element_addr + response_offset;
+ lrb->ucd_prdt_ptr = (struct ufshcd_sg_entry *)cmd_descp[i].prd_table;
+ lrb->ucd_prdt_dma_addr = cmd_desc_element_addr + prdt_offset;
+}
+
/**
* ufshcd_queuecommand - main entry point for SCSI requests
* @host: SCSI host pointer
@@ -2452,7 +2510,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
/* issue command to the controller */
spin_lock_irqsave(hba->host->host_lock, flags);
- ufshcd_vops_setup_xfer_req(hba, tag, (lrbp->cmd ? true : false));
+ ufshcd_vops_setup_xfer_req(hba, tag, true);
ufshcd_send_command(hba, tag);
out_unlock:
spin_unlock_irqrestore(hba->host->host_lock, flags);
@@ -2639,7 +2697,7 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
/* Make sure descriptors are ready before ringing the doorbell */
wmb();
spin_lock_irqsave(hba->host->host_lock, flags);
- ufshcd_vops_setup_xfer_req(hba, tag, (lrbp->cmd ? true : false));
+ ufshcd_vops_setup_xfer_req(hba, tag, false);
ufshcd_send_command(hba, tag);
spin_unlock_irqrestore(hba->host->host_lock, flags);
@@ -3276,6 +3334,31 @@ static inline int ufshcd_read_unit_desc_param(struct ufs_hba *hba,
param_offset, param_read_buf, param_size);
}
+static int ufshcd_get_ref_clk_gating_wait(struct ufs_hba *hba)
+{
+ int err = 0;
+ u32 gating_wait = UFSHCD_REF_CLK_GATING_WAIT_US;
+
+ if (hba->dev_info.wspecversion >= 0x300) {
+ err = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR,
+ QUERY_ATTR_IDN_REF_CLK_GATING_WAIT_TIME, 0, 0,
+ &gating_wait);
+ if (err)
+ dev_err(hba->dev, "Failed reading bRefClkGatingWait. err = %d, use default %uus\n",
+ err, gating_wait);
+
+ if (gating_wait == 0) {
+ gating_wait = UFSHCD_REF_CLK_GATING_WAIT_US;
+ dev_err(hba->dev, "Undefined ref clk gating wait time, use default %uus\n",
+ gating_wait);
+ }
+
+ hba->dev_info.clk_gating_wait_us = gating_wait;
+ }
+
+ return err;
+}
+
/**
* ufshcd_memory_alloc - allocate memory for host memory space data structures
* @hba: per adapter instance
@@ -3373,7 +3456,6 @@ out:
*/
static void ufshcd_host_memory_configure(struct ufs_hba *hba)
{
- struct utp_transfer_cmd_desc *cmd_descp;
struct utp_transfer_req_desc *utrdlp;
dma_addr_t cmd_desc_dma_addr;
dma_addr_t cmd_desc_element_addr;
@@ -3383,7 +3465,6 @@ static void ufshcd_host_memory_configure(struct ufs_hba *hba)
int i;
utrdlp = hba->utrdl_base_addr;
- cmd_descp = hba->ucdl_base_addr;
response_offset =
offsetof(struct utp_transfer_cmd_desc, response_upiu);
@@ -3403,36 +3484,13 @@ static void ufshcd_host_memory_configure(struct ufs_hba *hba)
cpu_to_le32(upper_32_bits(cmd_desc_element_addr));
/* Response upiu and prdt offset should be in double words */
- if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) {
- utrdlp[i].response_upiu_offset =
- cpu_to_le16(response_offset);
- utrdlp[i].prd_table_offset =
- cpu_to_le16(prdt_offset);
- utrdlp[i].response_upiu_length =
- cpu_to_le16(ALIGNED_UPIU_SIZE);
- } else {
- utrdlp[i].response_upiu_offset =
- cpu_to_le16((response_offset >> 2));
- utrdlp[i].prd_table_offset =
- cpu_to_le16((prdt_offset >> 2));
- utrdlp[i].response_upiu_length =
- cpu_to_le16(ALIGNED_UPIU_SIZE >> 2);
- }
+ utrdlp[i].response_upiu_offset =
+ cpu_to_le16(response_offset >> 2);
+ utrdlp[i].prd_table_offset = cpu_to_le16(prdt_offset >> 2);
+ utrdlp[i].response_upiu_length =
+ cpu_to_le16(ALIGNED_UPIU_SIZE >> 2);
- hba->lrb[i].utr_descriptor_ptr = (utrdlp + i);
- hba->lrb[i].utrd_dma_addr = hba->utrdl_dma_addr +
- (i * sizeof(struct utp_transfer_req_desc));
- hba->lrb[i].ucd_req_ptr =
- (struct utp_upiu_req *)(cmd_descp + i);
- hba->lrb[i].ucd_req_dma_addr = cmd_desc_element_addr;
- hba->lrb[i].ucd_rsp_ptr =
- (struct utp_upiu_rsp *)cmd_descp[i].response_upiu;
- hba->lrb[i].ucd_rsp_dma_addr = cmd_desc_element_addr +
- response_offset;
- hba->lrb[i].ucd_prdt_ptr =
- (struct ufshcd_sg_entry *)cmd_descp[i].prd_table;
- hba->lrb[i].ucd_prdt_dma_addr = cmd_desc_element_addr +
- prdt_offset;
+ ufshcd_init_lrb(hba, &hba->lrb[i], i);
}
}
@@ -3460,52 +3518,6 @@ static int ufshcd_dme_link_startup(struct ufs_hba *hba)
"dme-link-startup: error code %d\n", ret);
return ret;
}
-/**
- * ufshcd_dme_reset - UIC command for DME_RESET
- * @hba: per adapter instance
- *
- * DME_RESET command is issued in order to reset UniPro stack.
- * This function now deal with cold reset.
- *
- * Returns 0 on success, non-zero value on failure
- */
-static int ufshcd_dme_reset(struct ufs_hba *hba)
-{
- struct uic_command uic_cmd = {0};
- int ret;
-
- uic_cmd.command = UIC_CMD_DME_RESET;
-
- ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
- if (ret)
- dev_err(hba->dev,
- "dme-reset: error code %d\n", ret);
-
- return ret;
-}
-
-/**
- * ufshcd_dme_enable - UIC command for DME_ENABLE
- * @hba: per adapter instance
- *
- * DME_ENABLE command is issued in order to enable UniPro stack.
- *
- * Returns 0 on success, non-zero value on failure
- */
-static int ufshcd_dme_enable(struct ufs_hba *hba)
-{
- struct uic_command uic_cmd = {0};
- int ret;
-
- uic_cmd.command = UIC_CMD_DME_ENABLE;
-
- ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
- if (ret)
- dev_err(hba->dev,
- "dme-reset: error code %d\n", ret);
-
- return ret;
-}
static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba)
{
@@ -4224,7 +4236,7 @@ static inline void ufshcd_hba_stop(struct ufs_hba *hba, bool can_sleep)
}
/**
- * ufshcd_hba_execute_hce - initialize the controller
+ * ufshcd_hba_enable - initialize the controller
* @hba: per adapter instance
*
* The controller resets itself and controller firmware initialization
@@ -4233,7 +4245,7 @@ static inline void ufshcd_hba_stop(struct ufs_hba *hba, bool can_sleep)
*
* Returns 0 on success, non-zero value on failure
*/
-static int ufshcd_hba_execute_hce(struct ufs_hba *hba)
+int ufshcd_hba_enable(struct ufs_hba *hba)
{
int retry;
@@ -4259,10 +4271,10 @@ static int ufshcd_hba_execute_hce(struct ufs_hba *hba)
* instruction might be read back.
* This delay can be changed based on the controller.
*/
- usleep_range(1000, 1100);
+ ufshcd_delay_us(hba->hba_enable_delay_us, 100);
/* wait for the host controller to complete initialization */
- retry = 10;
+ retry = 50;
while (ufshcd_is_hba_active(hba)) {
if (retry) {
retry--;
@@ -4271,7 +4283,7 @@ static int ufshcd_hba_execute_hce(struct ufs_hba *hba)
"Controller enable failed\n");
return -EIO;
}
- usleep_range(5000, 5100);
+ usleep_range(1000, 1100);
}
/* enable UIC related interrupts */
@@ -4281,37 +4293,11 @@ static int ufshcd_hba_execute_hce(struct ufs_hba *hba)
return 0;
}
-
-int ufshcd_hba_enable(struct ufs_hba *hba)
-{
- int ret;
-
- if (hba->quirks & UFSHCI_QUIRK_BROKEN_HCE) {
- ufshcd_set_link_off(hba);
- ufshcd_vops_hce_enable_notify(hba, PRE_CHANGE);
-
- /* enable UIC related interrupts */
- ufshcd_enable_intr(hba, UFSHCD_UIC_MASK);
- ret = ufshcd_dme_reset(hba);
- if (!ret) {
- ret = ufshcd_dme_enable(hba);
- if (!ret)
- ufshcd_vops_hce_enable_notify(hba, POST_CHANGE);
- if (ret)
- dev_err(hba->dev,
- "Host controller enable failed with non-hce\n");
- }
- } else {
- ret = ufshcd_hba_execute_hce(hba);
- }
-
- return ret;
-}
EXPORT_SYMBOL_GPL(ufshcd_hba_enable);
static int ufshcd_disable_tx_lcc(struct ufs_hba *hba, bool peer)
{
- int tx_lanes, i, err = 0;
+ int tx_lanes = 0, i, err = 0;
if (!peer)
ufshcd_dme_get(hba, UIC_ARG_MIB(PA_CONNECTEDTXDATALANES),
@@ -4737,8 +4723,15 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
* UFS device needs urgent BKOPs.
*/
if (!hba->pm_op_in_progress &&
- ufshcd_is_exception_event(lrbp->ucd_rsp_ptr))
- schedule_work(&hba->eeh_work);
+ ufshcd_is_exception_event(lrbp->ucd_rsp_ptr) &&
+ schedule_work(&hba->eeh_work)) {
+ /*
+ * Prevent suspend once eeh_work is scheduled
+ * to avoid deadlock between ufshcd_suspend
+ * and exception event handler.
+ */
+ pm_runtime_get_noresume(hba->dev);
+ }
break;
case UPIU_TRANSACTION_REJECT_UPIU:
/* TODO: handle Reject UPIU Response */
@@ -4876,8 +4869,7 @@ static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba)
* false interrupt if device completes another request after resetting
* aggregation and before reading the DB.
*/
- if (ufshcd_is_intr_aggr_allowed(hba) &&
- !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR))
+ if (ufshcd_is_intr_aggr_allowed(hba))
ufshcd_reset_intr_aggr(hba);
tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
@@ -5191,7 +5183,14 @@ static void ufshcd_exception_event_handler(struct work_struct *work)
out:
ufshcd_scsi_unblock_requests(hba);
- pm_runtime_put_sync(hba->dev);
+ /*
+ * pm_runtime_get_noresume is called while scheduling
+ * eeh_work to avoid suspend racing with exception work.
+ * Hence decrement usage counter using pm_runtime_put_noidle
+ * to allow suspend on completion of exception event handler.
+ */
+ pm_runtime_put_noidle(hba->dev);
+ pm_runtime_put(hba->dev);
return;
}
@@ -5486,7 +5485,8 @@ static irqreturn_t ufshcd_update_uic_error(struct ufs_hba *hba)
static bool ufshcd_is_auto_hibern8_error(struct ufs_hba *hba,
u32 intr_mask)
{
- if (!ufshcd_is_auto_hibern8_supported(hba))
+ if (!ufshcd_is_auto_hibern8_supported(hba) ||
+ !ufshcd_is_auto_hibern8_enabled(hba))
return false;
if (!(intr_mask & UFSHCD_UIC_HIBERN8_MASK))
@@ -6482,11 +6482,12 @@ out:
return icc_level;
}
-static void ufshcd_init_icc_levels(struct ufs_hba *hba)
+static void ufshcd_set_active_icc_lvl(struct ufs_hba *hba)
{
int ret;
int buff_len = hba->desc_size.pwr_desc;
u8 *desc_buf;
+ u32 icc_level;
desc_buf = kmalloc(buff_len, GFP_KERNEL);
if (!desc_buf)
@@ -6501,25 +6502,32 @@ static void ufshcd_init_icc_levels(struct ufs_hba *hba)
goto out;
}
- hba->init_prefetch_data.icc_level =
- ufshcd_find_max_sup_active_icc_level(hba,
- desc_buf, buff_len);
- dev_dbg(hba->dev, "%s: setting icc_level 0x%x",
- __func__, hba->init_prefetch_data.icc_level);
+ icc_level = ufshcd_find_max_sup_active_icc_level(hba, desc_buf,
+ buff_len);
+ dev_dbg(hba->dev, "%s: setting icc_level 0x%x", __func__, icc_level);
ret = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_WRITE_ATTR,
- QUERY_ATTR_IDN_ACTIVE_ICC_LVL, 0, 0,
- &hba->init_prefetch_data.icc_level);
+ QUERY_ATTR_IDN_ACTIVE_ICC_LVL, 0, 0, &icc_level);
if (ret)
dev_err(hba->dev,
"%s: Failed configuring bActiveICCLevel = %d ret = %d",
- __func__, hba->init_prefetch_data.icc_level , ret);
+ __func__, icc_level, ret);
out:
kfree(desc_buf);
}
+static inline void ufshcd_blk_pm_runtime_init(struct scsi_device *sdev)
+{
+ 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);
+ scsi_autopm_put_device(sdev);
+}
+
/**
* ufshcd_scsi_add_wlus - Adds required W-LUs
* @hba: per-adapter instance
@@ -6559,6 +6567,7 @@ static int ufshcd_scsi_add_wlus(struct ufs_hba *hba)
hba->sdev_ufs_device = NULL;
goto out;
}
+ ufshcd_blk_pm_runtime_init(hba->sdev_ufs_device);
scsi_device_put(hba->sdev_ufs_device);
sdev_rpmb = __scsi_add_device(hba->host, 0, 0,
@@ -6567,14 +6576,17 @@ static int ufshcd_scsi_add_wlus(struct ufs_hba *hba)
ret = PTR_ERR(sdev_rpmb);
goto remove_sdev_ufs_device;
}
+ ufshcd_blk_pm_runtime_init(sdev_rpmb);
scsi_device_put(sdev_rpmb);
sdev_boot = __scsi_add_device(hba->host, 0, 0,
ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_BOOT_WLUN), NULL);
- if (IS_ERR(sdev_boot))
+ if (IS_ERR(sdev_boot)) {
dev_err(hba->dev, "%s: BOOT WLUN not found\n", __func__);
- else
+ } else {
+ ufshcd_blk_pm_runtime_init(sdev_boot);
scsi_device_put(sdev_boot);
+ }
goto out;
remove_sdev_ufs_device:
@@ -6614,6 +6626,10 @@ static int ufs_get_device_desc(struct ufs_hba *hba)
dev_info->wmanufacturerid = desc_buf[DEVICE_DESC_PARAM_MANF_ID] << 8 |
desc_buf[DEVICE_DESC_PARAM_MANF_ID + 1];
+ /* getting Specification Version in big endian format */
+ dev_info->wspecversion = desc_buf[DEVICE_DESC_PARAM_SPEC_VER] << 8 |
+ desc_buf[DEVICE_DESC_PARAM_SPEC_VER + 1];
+
model_index = desc_buf[DEVICE_DESC_PARAM_PRDCT_NAME];
err = ufshcd_read_string_desc(hba, model_index,
&dev_info->model, SD_ASCII_STD);
@@ -6811,14 +6827,14 @@ static void ufshcd_tune_unipro_params(struct ufs_hba *hba)
ufshcd_tune_pa_hibern8time(hba);
}
+ ufshcd_vops_apply_dev_quirks(hba);
+
if (hba->dev_quirks & UFS_DEVICE_QUIRK_PA_TACTIVATE)
/* set 1ms timeout for PA_TACTIVATE */
ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TACTIVATE), 10);
if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE)
ufshcd_quirk_tune_host_pa_tactivate(hba);
-
- ufshcd_vops_apply_dev_quirks(hba);
}
static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba)
@@ -6991,6 +7007,8 @@ static int ufshcd_device_params_init(struct ufs_hba *hba)
goto out;
}
+ ufshcd_get_ref_clk_gating_wait(hba);
+
ufs_fixup_device_setup(hba);
if (!ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_READ_FLAG,
@@ -7014,8 +7032,6 @@ static int ufshcd_add_lus(struct ufs_hba *hba)
{
int ret;
- ufshcd_init_icc_levels(hba);
-
/* Add required well known logical units to scsi mid layer */
ret = ufshcd_scsi_add_wlus(hba);
if (ret)
@@ -7113,6 +7129,14 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async)
}
}
+ /*
+ * bActiveICCLevel is volatile for UFS device (as per latest v2.1 spec)
+ * and for removable UFS card as well, hence always set the parameter.
+ * Note: Error handler may issue the device reset hence resetting
+ * bActiveICCLevel as well so it is always safe to set this here.
+ */
+ ufshcd_set_active_icc_lvl(hba);
+
/* set the state as operational after switching to desired gear */
hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL;
@@ -7241,6 +7265,11 @@ static int ufshcd_config_vreg(struct device *dev,
name = vreg->name;
if (regulator_count_voltages(reg) > 0) {
+ uA_load = on ? vreg->max_uA : 0;
+ ret = ufshcd_config_vreg_load(dev, vreg, uA_load);
+ if (ret)
+ goto out;
+
if (vreg->min_uV && vreg->max_uV) {
min_uV = on ? vreg->min_uV : 0;
ret = regulator_set_voltage(reg, min_uV, vreg->max_uV);
@@ -7251,11 +7280,6 @@ static int ufshcd_config_vreg(struct device *dev,
goto out;
}
}
-
- uA_load = on ? vreg->max_uA : 0;
- ret = ufshcd_config_vreg_load(dev, vreg, uA_load);
- if (ret)
- goto out;
}
out:
return ret;
@@ -7395,16 +7419,9 @@ static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,
if (list_empty(head))
goto out;
- /*
- * vendor specific setup_clocks ops may depend on clocks managed by
- * this standard driver hence call the vendor specific setup_clocks
- * before disabling the clocks managed here.
- */
- if (!on) {
- ret = ufshcd_vops_setup_clocks(hba, on, PRE_CHANGE);
- if (ret)
- return ret;
- }
+ ret = ufshcd_vops_setup_clocks(hba, on, PRE_CHANGE);
+ if (ret)
+ return ret;
list_for_each_entry(clki, head, list) {
if (!IS_ERR_OR_NULL(clki->clk)) {
@@ -7428,16 +7445,9 @@ static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,
}
}
- /*
- * vendor specific setup_clocks ops may depend on clocks managed by
- * this standard driver hence call the vendor specific setup_clocks
- * after enabling the clocks managed here.
- */
- if (on) {
- ret = ufshcd_vops_setup_clocks(hba, on, POST_CHANGE);
- if (ret)
- return ret;
- }
+ ret = ufshcd_vops_setup_clocks(hba, on, POST_CHANGE);
+ if (ret)
+ return ret;
out:
if (ret) {
@@ -7931,6 +7941,7 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
goto enable_gating;
}
+ flush_work(&hba->eeh_work);
ret = ufshcd_link_state_transition(hba, req_link_state, 1);
if (ret)
goto set_dev_active;
@@ -8402,6 +8413,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
hba->mmio_base = mmio_base;
hba->irq = irq;
+ hba->hba_enable_delay_us = 1000;
err = ufshcd_hba_init(hba);
if (err)
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 2ae6c7c8528c..dd1ee277069a 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -55,6 +55,8 @@
#include <linux/clk.h>
#include <linux/completion.h>
#include <linux/regulator/consumer.h>
+#include <linux/bitfield.h>
+#include <linux/devfreq.h>
#include "unipro.h"
#include <asm/irq.h>
@@ -326,6 +328,9 @@ struct ufs_hba_variant_ops {
void (*dbg_register_dump)(struct ufs_hba *hba);
int (*phy_initialization)(struct ufs_hba *);
void (*device_reset)(struct ufs_hba *hba);
+ void (*config_scaling_param)(struct ufs_hba *hba,
+ struct devfreq_dev_profile *profile,
+ void *data);
};
/* clock gating state */
@@ -403,15 +408,6 @@ struct ufs_clk_scaling {
bool is_suspended;
};
-/**
- * struct ufs_init_prefetch - contains data that is pre-fetched once during
- * initialization
- * @icc_level: icc level which was read during initialization
- */
-struct ufs_init_prefetch {
- u32 icc_level;
-};
-
#define UFS_ERR_REG_HIST_LENGTH 8
/**
* struct ufs_err_reg_hist - keeps history of errors
@@ -469,6 +465,85 @@ struct ufs_stats {
struct ufs_err_reg_hist task_abort;
};
+enum ufshcd_quirks {
+ /* Interrupt aggregation support is broken */
+ UFSHCD_QUIRK_BROKEN_INTR_AGGR = 1 << 0,
+
+ /*
+ * delay before each dme command is required as the unipro
+ * layer has shown instabilities
+ */
+ UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS = 1 << 1,
+
+ /*
+ * If UFS host controller is having issue in processing LCC (Line
+ * Control Command) coming from device then enable this quirk.
+ * When this quirk is enabled, host controller driver should disable
+ * the LCC transmission on UFS device (by clearing TX_LCC_ENABLE
+ * attribute of device to 0).
+ */
+ UFSHCD_QUIRK_BROKEN_LCC = 1 << 2,
+
+ /*
+ * The attribute PA_RXHSUNTERMCAP specifies whether or not the
+ * inbound Link supports unterminated line in HS mode. Setting this
+ * attribute to 1 fixes moving to HS gear.
+ */
+ UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP = 1 << 3,
+
+ /*
+ * This quirk needs to be enabled if the host controller only allows
+ * accessing the peer dme attributes in AUTO mode (FAST AUTO or
+ * SLOW AUTO).
+ */
+ UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE = 1 << 4,
+
+ /*
+ * This quirk needs to be enabled if the host controller doesn't
+ * advertise the correct version in UFS_VER register. If this quirk
+ * is enabled, standard UFS host driver will call the vendor specific
+ * ops (get_ufs_hci_version) to get the correct version.
+ */
+ UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION = 1 << 5,
+};
+
+enum ufshcd_caps {
+ /* Allow dynamic clk gating */
+ UFSHCD_CAP_CLK_GATING = 1 << 0,
+
+ /* Allow hiberb8 with clk gating */
+ UFSHCD_CAP_HIBERN8_WITH_CLK_GATING = 1 << 1,
+
+ /* Allow dynamic clk scaling */
+ UFSHCD_CAP_CLK_SCALING = 1 << 2,
+
+ /* Allow auto bkops to enabled during runtime suspend */
+ UFSHCD_CAP_AUTO_BKOPS_SUSPEND = 1 << 3,
+
+ /*
+ * This capability allows host controller driver to use the UFS HCI's
+ * interrupt aggregation capability.
+ * CAUTION: Enabling this might reduce overall UFS throughput.
+ */
+ UFSHCD_CAP_INTR_AGGR = 1 << 4,
+
+ /*
+ * This capability allows the device auto-bkops to be always enabled
+ * except during suspend (both runtime and suspend).
+ * Enabling this capability means that device will always be allowed
+ * to do background operation when it's active but it might degrade
+ * the performance of ongoing read/write operations.
+ */
+ UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND = 1 << 5,
+
+ /*
+ * This capability allows host controller driver to automatically
+ * enable runtime power management by itself instead of waiting
+ * for userspace to control the power management.
+ */
+ UFSHCD_CAP_RPM_AUTOSUSPEND = 1 << 6,
+};
+
/**
* struct ufs_hba - per adapter private structure
* @mmio_base: UFSHCI base register address
@@ -501,7 +576,6 @@ struct ufs_stats {
* @intr_mask: Interrupt Mask Bits
* @ee_ctrl_mask: Exception event control mask
* @is_powered: flag to check if HBA is powered
- * @init_prefetch_data: data pre-fetched during initialization
* @eh_work: Worker to handle UFS errors that require s/w attention
* @eeh_work: Worker to handle exception events
* @errors: HBA errors
@@ -572,68 +646,6 @@ struct ufs_hba {
bool is_irq_enabled;
enum ufs_ref_clk_freq dev_ref_clk_freq;
- /* Interrupt aggregation support is broken */
- #define UFSHCD_QUIRK_BROKEN_INTR_AGGR 0x1
-
- /*
- * delay before each dme command is required as the unipro
- * layer has shown instabilities
- */
- #define UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS 0x2
-
- /*
- * If UFS host controller is having issue in processing LCC (Line
- * Control Command) coming from device then enable this quirk.
- * When this quirk is enabled, host controller driver should disable
- * the LCC transmission on UFS device (by clearing TX_LCC_ENABLE
- * attribute of device to 0).
- */
- #define UFSHCD_QUIRK_BROKEN_LCC 0x4
-
- /*
- * The attribute PA_RXHSUNTERMCAP specifies whether or not the
- * inbound Link supports unterminated line in HS mode. Setting this
- * attribute to 1 fixes moving to HS gear.
- */
- #define UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP 0x8
-
- /*
- * This quirk needs to be enabled if the host contoller only allows
- * accessing the peer dme attributes in AUTO mode (FAST AUTO or
- * SLOW AUTO).
- */
- #define UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE 0x10
-
- /*
- * This quirk needs to be enabled if the host contoller doesn't
- * advertise the correct version in UFS_VER register. If this quirk
- * is enabled, standard UFS host driver will call the vendor specific
- * ops (get_ufs_hci_version) to get the correct version.
- */
- #define UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION 0x20
-
- /*
- * This quirk needs to be enabled if the host contoller regards
- * resolution of the values of PRDTO and PRDTL in UTRD as byte.
- */
- #define UFSHCD_QUIRK_PRDT_BYTE_GRAN 0x80
-
- /*
- * Clear handling for transfer/task request list is just opposite.
- */
- #define UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR 0x100
-
- /*
- * This quirk needs to be enabled if host controller doesn't allow
- * that the interrupt aggregation timer and counter are reset by s/w.
- */
- #define UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR 0x200
-
- /*
- * This quirks needs to be enabled if host controller cannot be
- * enabled via HCE register.
- */
- #define UFSHCI_QUIRK_BROKEN_HCE 0x400
unsigned int quirks; /* Deviations from standard UFSHCI spec. */
/* Device deviations from standard UFS device spec. */
@@ -650,8 +662,8 @@ struct ufs_hba {
u32 eh_flags;
u32 intr_mask;
u16 ee_ctrl_mask;
+ u16 hba_enable_delay_us;
bool is_powered;
- struct ufs_init_prefetch init_prefetch_data;
/* Work Queues */
struct work_struct eh_work;
@@ -688,34 +700,6 @@ struct ufs_hba {
struct ufs_clk_gating clk_gating;
/* Control to enable/disable host capabilities */
u32 caps;
- /* Allow dynamic clk gating */
-#define UFSHCD_CAP_CLK_GATING (1 << 0)
- /* Allow hiberb8 with clk gating */
-#define UFSHCD_CAP_HIBERN8_WITH_CLK_GATING (1 << 1)
- /* Allow dynamic clk scaling */
-#define UFSHCD_CAP_CLK_SCALING (1 << 2)
- /* Allow auto bkops to enabled during runtime suspend */
-#define UFSHCD_CAP_AUTO_BKOPS_SUSPEND (1 << 3)
- /*
- * This capability allows host controller driver to use the UFS HCI's
- * interrupt aggregation capability.
- * CAUTION: Enabling this might reduce overall UFS throughput.
- */
-#define UFSHCD_CAP_INTR_AGGR (1 << 4)
- /*
- * This capability allows the device auto-bkops to be always enabled
- * except during suspend (both runtime and suspend).
- * Enabling this capability means that device will always be allowed
- * to do background operation when it's active but it might degrade
- * the performance of ongoing read/write operations.
- */
-#define UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND (1 << 5)
- /*
- * This capability allows host controller driver to automatically
- * enable runtime power management by itself instead of waiting
- * for userspace to control the power management.
- */
-#define UFSHCD_CAP_RPM_AUTOSUSPEND (1 << 6)
struct devfreq *devfreq;
struct ufs_clk_scaling clk_scaling;
@@ -773,6 +757,11 @@ static inline bool ufshcd_is_auto_hibern8_supported(struct ufs_hba *hba)
return (hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT);
}
+static inline bool ufshcd_is_auto_hibern8_enabled(struct ufs_hba *hba)
+{
+ return FIELD_GET(UFSHCI_AHIBERN8_TIMER_MASK, hba->ahit) ? true : false;
+}
+
#define ufshcd_writel(hba, val, reg) \
writel((val), (hba)->mmio_base + (reg))
#define ufshcd_readl(hba, reg) \
@@ -802,6 +791,7 @@ int ufshcd_init(struct ufs_hba * , void __iomem * , unsigned int);
int ufshcd_make_hba_operational(struct ufs_hba *hba);
void ufshcd_remove(struct ufs_hba *);
int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
+void ufshcd_delay_us(unsigned long us, unsigned long tolerance);
int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask,
u32 val, unsigned long interval_us,
unsigned long timeout_ms, bool can_sleep);
@@ -908,6 +898,11 @@ static inline bool ufshcd_is_hs_mode(struct ufs_pa_layer_attr *pwr_info)
pwr_info->pwr_tx == FASTAUTO_MODE);
}
+static inline int ufshcd_disable_host_tx_lcc(struct ufs_hba *hba)
+{
+ return ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
+}
+
/* Expose Query-Request API */
int ufshcd_query_descriptor_retry(struct ufs_hba *hba,
enum query_opcode opcode,
@@ -1092,6 +1087,14 @@ static inline void ufshcd_vops_device_reset(struct ufs_hba *hba)
}
}
+static inline void ufshcd_vops_config_scaling_param(struct ufs_hba *hba,
+ struct devfreq_dev_profile
+ *profile, void *data)
+{
+ if (hba->vops && hba->vops->config_scaling_param)
+ hba->vops->config_scaling_param(hba, profile, data);
+}
+
extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];
/*
diff --git a/drivers/scsi/ufs/unipro.h b/drivers/scsi/ufs/unipro.h
index 3dc4d8b76509..766d551df3fc 100644
--- a/drivers/scsi/ufs/unipro.h
+++ b/drivers/scsi/ufs/unipro.h
@@ -146,6 +146,12 @@
#define PA_SLEEPNOCONFIGTIME 0x15A2
#define PA_STALLNOCONFIGTIME 0x15A3
#define PA_SAVECONFIGTIME 0x15A4
+#define PA_TXHSADAPTTYPE 0x15D4
+
+/* Adpat type for PA_TXHSADAPTTYPE attribute */
+#define PA_REFRESH_ADAPT 0x00
+#define PA_INITIAL_ADAPT 0x01
+#define PA_NO_ADAPT 0x03
#define PA_TACTIVATE_TIME_UNIT_US 10
#define PA_HIBERN8_TIME_UNIT_US 100
@@ -203,6 +209,7 @@ enum ufs_hs_gear_tag {
UFS_HS_G1, /* HS Gear 1 (default for reset) */
UFS_HS_G2, /* HS Gear 2 */
UFS_HS_G3, /* HS Gear 3 */
+ UFS_HS_G4, /* HS Gear 4 */
};
enum ufs_unipro_ver {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 05:29:50 +0000