linux-kernel - [PATCH 1/3] regulator: print state at boot

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Message-Id: <53c4f3d394d68f0989174f89e3b0882cebbbd787.1601155770.git.mirq-linux@rere.qmqm.pl>
Date:   Sat, 26 Sep 2020 23:32:40 +0200
From:   Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jon Hunter <jonathanh@...dia.com>
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] regulator: print state at boot

Make the initial state of the regulator shown when debugging.

Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>
---
 drivers/regulator/core.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 9238613a8c26..bf88d74f5401 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1114,10 +1114,15 @@ static void print_constraints(struct regulator_dev *rdev)
 	if (constraints->valid_modes_mask & REGULATOR_MODE_IDLE)
 		count += scnprintf(buf + count, len - count, "idle ");
 	if (constraints->valid_modes_mask & REGULATOR_MODE_STANDBY)
-		count += scnprintf(buf + count, len - count, "standby");
+		count += scnprintf(buf + count, len - count, "standby ");
 
 	if (!count)
-		scnprintf(buf, len, "no parameters");
+		count = scnprintf(buf, len, "no parameters");
+	else
+		--count;
+
+	count += scnprintf(buf + count, len - count, ", %s",
+		_regulator_is_enabled(rdev) ? "enabled" : "disabled");
 
 	rdev_dbg(rdev, "%s\n", buf);
 
-- 
2.20.1