Report the value of the CAPABILITY register in debugfs if supported.
Only check if the register is supported if PMBUS_NO_CAPABILITY
is not set.
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
v2: Fix number of debugfs files
drivers/hwmon/pmbus/pmbus_core.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index f0f8b7ed5416..8625de9caff7 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -3569,12 +3569,12 @@ static void pmbus_init_debugfs(struct i2c_client *client,
/*
* Allocate the max possible entries we need.
* device specific:
- * ARRAY_SIZE(pmbus_debugfs_block_data) + 1
+ * ARRAY_SIZE(pmbus_debugfs_block_data) + 2
* page specific:
* ARRAY_SIZE(pmbus_debugfs_status_data) + 1
*/
entries = devm_kcalloc(data->dev,
- ARRAY_SIZE(pmbus_debugfs_block_data) + 1 +
+ ARRAY_SIZE(pmbus_debugfs_block_data) + 2 +
data->info->pages * (ARRAY_SIZE(pmbus_debugfs_status_data) + 1),
sizeof(*entries), GFP_KERNEL);
if (!entries)
@@ -3588,6 +3588,15 @@ static void pmbus_init_debugfs(struct i2c_client *client,
* assume that values of the following registers are the same for all
* pages and report values only for page 0.
*/
+ if (!(data->flags & PMBUS_NO_CAPABILITY) &&
+ pmbus_check_byte_register(client, 0, PMBUS_CAPABILITY)) {
+ entries[idx].client = client;
+ entries[idx].page = 0;
+ entries[idx].reg = PMBUS_CAPABILITY;
+ debugfs_create_file("capability", 0444, debugfs,
+ &entries[idx++],
+ &pmbus_debugfs_ops);
+ }
if (pmbus_check_byte_register(client, 0, PMBUS_REVISION)) {
entries[idx].client = client;
entries[idx].page = 0;
--
2.45.2
