evie/android_kernel_oneplus_msm8998
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Merge "msm: pcie: add sysfs entry for PCIe enumeration"

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Linux Build Service Account 2017-03-30 07:20:28 -07:00 • committed by Gerrit - the friendly Code Review server
commit f51c9cc206
1 changed files with 50 additions and 0 deletions
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50
drivers/pci/host/pci-msm.c
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@ -2511,6 +2511,48 @@ int msm_pcie_debug_info(struct pci_dev *dev, u32 option, u32 base,
} }
EXPORT_SYMBOL(msm_pcie_debug_info); EXPORT_SYMBOL(msm_pcie_debug_info);
#ifdef CONFIG_SYSFS
static ssize_t msm_pcie_enumerate_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct msm_pcie_dev_t *pcie_dev = (struct msm_pcie_dev_t *)
dev_get_drvdata(dev);
if (pcie_dev)
msm_pcie_enumerate(pcie_dev->rc_idx);
return count;
}
static DEVICE_ATTR(enumerate, S_IWUSR, NULL, msm_pcie_enumerate_store);
static void msm_pcie_sysfs_init(struct msm_pcie_dev_t *dev)
{
int ret;
ret = device_create_file(&dev->pdev->dev, &dev_attr_enumerate);
if (ret)
PCIE_DBG_FS(dev,
"RC%d: failed to create sysfs enumerate node\n",
dev->rc_idx);
}
static void msm_pcie_sysfs_exit(struct msm_pcie_dev_t *dev)
{
if (dev->pdev)
device_remove_file(&dev->pdev->dev, &dev_attr_enumerate);
}
#else
static void msm_pcie_sysfs_init(struct msm_pcie_dev_t *dev)
{
}
static void msm_pcie_sysfs_exit(struct msm_pcie_dev_t *dev)
{
}
#endif
#ifdef CONFIG_DEBUG_FS #ifdef CONFIG_DEBUG_FS
static struct dentry *dent_msm_pcie; static struct dentry *dent_msm_pcie;
static struct dentry *dfile_rc_sel; static struct dentry *dfile_rc_sel;
@ -6277,6 +6319,9 @@ static int msm_pcie_probe(struct platform_device *pdev)
msm_pcie_dev[rc_idx].pcidev_table[i].registered = true; msm_pcie_dev[rc_idx].pcidev_table[i].registered = true;
} }
dev_set_drvdata(&msm_pcie_dev[rc_idx].pdev->dev, &msm_pcie_dev[rc_idx]);
msm_pcie_sysfs_init(&msm_pcie_dev[rc_idx]);
ret = msm_pcie_get_resources(&msm_pcie_dev[rc_idx], ret = msm_pcie_get_resources(&msm_pcie_dev[rc_idx],
msm_pcie_dev[rc_idx].pdev); msm_pcie_dev[rc_idx].pdev);
@ -6490,11 +6535,16 @@ int __init pcie_init(void)
static void __exit pcie_exit(void) static void __exit pcie_exit(void)
{ {
int i;
PCIE_GEN_DBG("pcie:%s.\n", __func__); PCIE_GEN_DBG("pcie:%s.\n", __func__);
platform_driver_unregister(&msm_pcie_driver); platform_driver_unregister(&msm_pcie_driver);
msm_pcie_debugfs_exit(); msm_pcie_debugfs_exit();
for (i = 0; i < MAX_RC_NUM; i++)
msm_pcie_sysfs_exit(&msm_pcie_dev[i]);
} }
subsys_initcall_sync(pcie_init); subsys_initcall_sync(pcie_init);