diff options
Diffstat (limited to 'sound/soc/codecs/wcd-dsp-mgr.c')
| -rw-r--r-- | sound/soc/codecs/wcd-dsp-mgr.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/sound/soc/codecs/wcd-dsp-mgr.c b/sound/soc/codecs/wcd-dsp-mgr.c index 71a2052f1089..9b1c8c98946c 100644 --- a/sound/soc/codecs/wcd-dsp-mgr.c +++ b/sound/soc/codecs/wcd-dsp-mgr.c @@ -14,6 +14,7 @@ #include <linux/slab.h> #include <linux/stringify.h> #include <linux/of.h> +#include <linux/debugfs.h> #include <linux/component.h> #include <linux/dma-mapping.h> #include <soc/qcom/ramdump.h> @@ -181,6 +182,10 @@ struct wdsp_mgr_priv { struct work_struct ssr_work; u16 ready_status; struct completion ready_compl; + + /* Debugfs related */ + struct dentry *entry; + bool panic_on_error; }; static char *wdsp_get_ssr_type_string(enum wdsp_ssr_type type) @@ -655,6 +660,12 @@ static void wdsp_collect_ramdumps(struct wdsp_mgr_priv *wdsp) goto err_read_dumps; } + /* + * If panic_on_error flag is explicitly set through the debugfs, + * then cause a BUG here to aid debugging. + */ + BUG_ON(wdsp->panic_on_error); + rd_seg.address = (unsigned long) wdsp->dump_data.rd_v_addr; rd_seg.size = img_section.size; rd_seg.v_address = wdsp->dump_data.rd_v_addr; @@ -948,6 +959,22 @@ static int wdsp_mgr_compare_of(struct device *dev, void *data) !strcmp(dev_name(dev), cmpnt->cdev_name))); } +static void wdsp_mgr_debugfs_init(struct wdsp_mgr_priv *wdsp) +{ + wdsp->entry = debugfs_create_dir("wdsp_mgr", NULL); + if (IS_ERR_OR_NULL(wdsp->entry)) + return; + + debugfs_create_bool("panic_on_error", S_IRUGO | S_IWUSR, + wdsp->entry, &wdsp->panic_on_error); +} + +static void wdsp_mgr_debugfs_remove(struct wdsp_mgr_priv *wdsp) +{ + debugfs_remove_recursive(wdsp->entry); + wdsp->entry = NULL; +} + static int wdsp_mgr_bind(struct device *dev) { struct wdsp_mgr_priv *wdsp = dev_get_drvdata(dev); @@ -977,6 +1004,8 @@ static int wdsp_mgr_bind(struct device *dev) } } + wdsp_mgr_debugfs_init(wdsp); + /* Schedule the work to download image if binding was successful. */ if (!ret) schedule_work(&wdsp->load_fw_work); @@ -992,6 +1021,8 @@ static void wdsp_mgr_unbind(struct device *dev) component_unbind_all(dev, wdsp->ops); + wdsp_mgr_debugfs_remove(wdsp); + if (wdsp->dump_data.rd_dev) { destroy_ramdump_device(wdsp->dump_data.rd_dev); wdsp->dump_data.rd_dev = NULL; |