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| # kernel/msm-4.9/drivers/usb/phy/phy-msm-usb.c
@@ -51,6 +51,11 @@
#include <linux/msm-bus.h>
+#undef dev_dbg
+#define dev_dbg dev_info
+#undef pr_debug
+#define pr_debug pr_info
+
/**
* Requested USB votes for BUS bandwidth
*
@@ -3601,6 +3606,53 @@ static int msm_otg_setup_devices(struct
return retval;
}
+
+#define DUMP_ENTRIES 152
+
+static ssize_t usbphy_regs_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct msm_otg *motg = the_msm_otg;
+ //struct msm_otg_platform_data *pdata = motg->pdata;
+ struct usb_phy *phy = &motg->phy;
+ u32 *dump;
+ unsigned int i, n = 0;
+ //dbg_trace("[%s] %pK\n", __func__, buf);
+ if (attr == NULL || buf == NULL) {
+ dev_err(dev, "[%s] EINVAL\n", __func__);
+ return 0;
+ }
+ if (atomic_read(&motg->in_lpm)){
+ dev_err(dev, "[%s] usb in lpm\n", __func__);
+ return 0;
+ }
+ dump = kmalloc(sizeof(u8) * DUMP_ENTRIES, GFP_KERNEL);
+ if (!dump)
+ return 0;
+
+ for(i = 0; i < DUMP_ENTRIES -1; i++)
+ dump[i] = ulpi_read(phy, i);
+
+ for (i = 0; i < DUMP_ENTRIES -1; i++) {
+ n += scnprintf(buf + n, PAGE_SIZE - n,
+ "reg[0x%04X] = 0x%04X\n",
+ i, dump[i]);
+ }
+ kfree(dump);
+
+ return n;
+}
+
+static ssize_t usbphy_regs_store(struct device *dev,
+ struct device_attribute *attr, const char
+ *buf, size_t size)
+{
+ return size;
+}
+
+static DEVICE_ATTR(usbphy_regs, 0644,
+ usbphy_regs_show, usbphy_regs_store);
+
static ssize_t dpdm_pulldown_enable_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -4426,6 +4478,7 @@ static int msm_otg_probe(struct platform
motg->caps |= ALLOW_HOST_PHY_RETENTION;
device_create_file(&pdev->dev, &dev_attr_dpdm_pulldown_enable);
+ device_create_file(&pdev->dev, &dev_attr_usbphy_regs);
if (motg->pdata->enable_lpm_on_dev_suspend)
motg->caps |= ALLOW_LPM_ON_DEV_SUSPEND;
@@ -4527,6 +4580,7 @@ otg_remove_devices:
remove_cdev:
pm_runtime_disable(&pdev->dev);
device_remove_file(&pdev->dev, &dev_attr_dpdm_pulldown_enable);
+ device_remove_file(&pdev->dev, &dev_attr_usbphy_regs);
msm_otg_debugfs_cleanup();
phy_reg_deinit:
devm_regulator_unregister(motg->phy.dev, motg->dpdm_rdev);
@@ -4619,6 +4673,7 @@ static int msm_otg_remove(struct platfor
usb_remove_phy(phy);
device_remove_file(&pdev->dev, &dev_attr_dpdm_pulldown_enable);
+ device_remove_file(&pdev->dev, &dev_attr_usbphy_regs);
/*
* Put PHY in low power mode.
|