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Merge "scsi: ufs-qcom: Add one vendor specific sysfs group"

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qctecmdr 2020-03-17 09:20:18 -07:00 • committed by Gerrit - the friendly Code Review server
commit 2248785891
2 changed files with 71 additions and 0 deletions
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70
drivers/scsi/ufs/ufs-qcom.c
View file

@ -72,6 +72,7 @@ static int ufs_qcom_set_dme_vs_core_clk_ctrl_clear_div(struct ufs_hba *hba,
static void ufs_qcom_parse_limits(struct ufs_qcom_host *host);
static void ufs_qcom_parse_lpm(struct ufs_qcom_host *host);
static int ufs_qcom_set_dme_vs_core_clk_ctrl_max_freq_mode(struct ufs_hba *hba);
static int ufs_qcom_init_sysfs(struct ufs_hba *hba);
static int ufs_qcom_get_pwr_dev_param(struct ufs_qcom_dev_params *qcom_param,
struct ufs_pa_layer_attr *dev_max,
@ -2246,6 +2247,8 @@ static int ufs_qcom_init(struct ufs_hba *hba)
err = 0;
}
ufs_qcom_init_sysfs(hba);
/* Provide SCSI host ioctl API */
hba->host->hostt->ioctl = (int (*)(struct scsi_device *, unsigned int,
void __user *))ufs_qcom_ioctl;
@ -2725,6 +2728,10 @@ static void ufs_qcom_print_utp_hci_testbus(struct ufs_hba *hba)
static void ufs_qcom_dump_dbg_regs(struct ufs_hba *hba)
{
struct ufs_qcom_host *host = ufshcd_get_variant(hba);
host->err_occurred = true;
ufshcd_dump_regs(hba, REG_UFS_SYS1CLK_1US, 16 * 4,
"HCI Vendor Specific Registers ");
@ -2825,6 +2832,69 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = {
.device_reset = ufs_qcom_device_reset,
};
/**
* QCOM specific sysfs group and nodes
*/
static ssize_t err_state_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ufs_hba *hba = dev_get_drvdata(dev);
struct ufs_qcom_host *host = ufshcd_get_variant(hba);
return scnprintf(buf, PAGE_SIZE, "%d\n", !!host->err_occurred);
}
static DEVICE_ATTR_RO(err_state);
static ssize_t power_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ufs_hba *hba = dev_get_drvdata(dev);
static const char * const names[] = {
"INVALID MODE",
"FAST MODE",
"SLOW MODE",
"INVALID MODE",
"FASTAUTO MODE",
"SLOWAUTO MODE",
"INVALID MODE",
};
/* Print current power info */
return scnprintf(buf, PAGE_SIZE,
"[Rx,Tx]: Gear[%d,%d], Lane[%d,%d], PWR[%s,%s], Rate-%c\n",
hba->pwr_info.gear_rx, hba->pwr_info.gear_tx,
hba->pwr_info.lane_rx, hba->pwr_info.lane_tx,
names[hba->pwr_info.pwr_rx],
names[hba->pwr_info.pwr_tx],
hba->pwr_info.hs_rate == PA_HS_MODE_B ? 'B' : 'A');
}
static DEVICE_ATTR_RO(power_mode);
static struct attribute *ufs_qcom_sysfs_attrs[] = {
&dev_attr_err_state.attr,
&dev_attr_power_mode.attr,
NULL
};
static const struct attribute_group ufs_qcom_sysfs_group = {
.name = "qcom",
.attrs = ufs_qcom_sysfs_attrs,
};
static int ufs_qcom_init_sysfs(struct ufs_hba *hba)
{
int ret;
ret = sysfs_create_group(&hba->dev->kobj, &ufs_qcom_sysfs_group);
if (ret)
dev_err(hba->dev, "%s: Failed to create qcom sysfs group (err = %d)\n",
__func__, ret);
return ret;
}
/**
* ufs_qcom_probe - probe routine of the driver
* @pdev: pointer to Platform device handle

1
drivers/scsi/ufs/ufs-qcom.h
View file

@ -338,6 +338,7 @@ struct ufs_qcom_host {
bool is_phy_pwr_on;
/* Protect the usage of is_phy_pwr_on against racing */
struct mutex phy_mutex;
bool err_occurred;
};
static inline u32