diff options
| -rw-r--r-- | fs/debugfs/file.c | 8 | ||||
| -rw-r--r-- | include/linux/debugfs.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c index 634b09d18b77..204734f8d1c6 100644 --- a/fs/debugfs/file.c +++ b/fs/debugfs/file.c @@ -18,6 +18,7 @@ #include <linux/slab.h> #include <linux/atomic.h> #include <linux/device.h> +#include <linux/pm_runtime.h> #include <linux/poll.h> #include <linux/security.h> @@ -1060,7 +1061,14 @@ static int debugfs_show_regset32(struct seq_file *s, void *data) { struct debugfs_regset32 *regset = s->private; + if (regset->dev) + pm_runtime_get_sync(regset->dev); + debugfs_print_regs32(s, regset->regs, regset->nregs, regset->base, ""); + + if (regset->dev) + pm_runtime_put(regset->dev); + return 0; } diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index 3d013de64f70..ad416853e722 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -35,6 +35,7 @@ struct debugfs_regset32 { const struct debugfs_reg32 *regs; int nregs; void __iomem *base; + struct device *dev; /* Optional device for Runtime PM */ }; extern struct dentry *arch_debugfs_dir; |