Commit c90a0036 authored by Guenter Roeck's avatar Guenter Roeck
Browse files

hwmon: (pmbus/core) Report content of CAPABILITY register in debugfs 



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.

Reviewed-by: default avatarTzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 64fbb4c4

drivers/hwmon/pmbus/pmbus_core.c

+11 −2
Original line number Diff line number Diff line
@@ -3568,12 +3568,12 @@ 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)
@@ -3587,6 +3587,15 @@ 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;