linux-kernel - [PATCH 5/8] regulator: mp8859: Support active discharge control

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240225-regulator-mp8859-v1-5-68ee2c839ded@kernel.org>
Date: Sun, 25 Feb 2024 14:59:31 +0000
From: Mark Brown <broonie@...nel.org>
To: Liam Girdwood <lgirdwood@...il.com>
Cc: linux-kernel@...r.kernel.org, Markus Reichl <m.reichl@...etechno.de>, 
 Mark Brown <broonie@...nel.org>
Subject: [PATCH 5/8] regulator: mp8859: Support active discharge control

The MP8859 can actively discharge the output when disabled, add support for
controlling this feature.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 drivers/regulator/mp8859.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/regulator/mp8859.c b/drivers/regulator/mp8859.c
index b97c00097148..87ef34875be1 100644
--- a/drivers/regulator/mp8859.c
+++ b/drivers/regulator/mp8859.c
@@ -36,6 +36,7 @@
 #define MP8859_GO_BIT			0x01
 
 #define MP8859_ENABLE_MASK		0x80
+#define MP8859_DISCHG_EN_MASK		0x10
 #define MP8859_MODE_MASK		0x08
 
 static int mp8859_set_voltage_sel(struct regulator_dev *rdev, unsigned int sel)
@@ -167,6 +168,7 @@ static const struct regulator_ops mp8859_ops = {
 	.is_enabled = regulator_is_enabled_regmap,
 	.set_mode = mp8859_set_mode,
 	.get_mode = mp8859_get_mode,
+	.set_active_discharge = regulator_set_active_discharge_regmap,
 };
 
 static const struct regulator_desc mp8859_regulators[] = {
@@ -182,6 +184,9 @@ static const struct regulator_desc mp8859_regulators[] = {
 		.enable_reg = MP8859_CTL1_REG,
 		.enable_mask = MP8859_ENABLE_MASK,
 		.enable_val = MP8859_ENABLE_MASK,
+		.active_discharge_reg = MP8859_CTL1_REG,
+		.active_discharge_on = MP8859_DISCHG_EN_MASK,
+		.active_discharge_mask = MP8859_DISCHG_EN_MASK,
 		.ops = &mp8859_ops,
 		.owner = THIS_MODULE,
 	},

-- 
2.39.2