linux-kernel - [PATCH v5 12/19] regulator: rohm-regulator: Support SNVS HW state.

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 for Android: free password hash cracker in your pocket

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

Message-ID: <7a8323c92bcc039436b142e91bb86bbb9112aaf7.1617020713.git.matti.vaittinen@fi.rohmeurope.com>
Date:   Mon, 29 Mar 2021 15:58:33 +0300
From:   Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
To:     Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Cc:     Lee Jones <lee.jones@...aro.org>, Rob Herring <robh+dt@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-power@...rohmeurope.com
Subject: [PATCH v5 12/19] regulator: rohm-regulator: Support SNVS HW state.

The ROHM BD71815 supports setting voltage levels/regulator status
for HW-states "RUN", "SUSPEND", "LPSR" and "SNVS". Add DT parsing
helper also for SNVS state.

Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Acked-for-MFD-by: Lee Jones <lee.jones@...aro.org>
---
Changes since v3:
 - No changes
 drivers/regulator/rohm-regulator.c | 6 ++++++
 include/linux/mfd/rohm-generic.h   | 6 +++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/rohm-regulator.c b/drivers/regulator/rohm-regulator.c
index 63aabb8c7786..6e0d9c08ec1c 100644
--- a/drivers/regulator/rohm-regulator.c
+++ b/drivers/regulator/rohm-regulator.c
@@ -95,6 +95,12 @@ int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
 				mask = dvs->lpsr_mask;
 				omask = dvs->lpsr_on_mask;
 				break;
+			case ROHM_DVS_LEVEL_SNVS:
+				prop = "rohm,dvs-snvs-voltage";
+				reg = dvs->snvs_reg;
+				mask = dvs->snvs_mask;
+				omask = dvs->snvs_on_mask;
+				break;
 			default:
 				return -EINVAL;
 			}
diff --git a/include/linux/mfd/rohm-generic.h b/include/linux/mfd/rohm-generic.h
index 9e2880e06950..a9144284cf6d 100644
--- a/include/linux/mfd/rohm-generic.h
+++ b/include/linux/mfd/rohm-generic.h
@@ -27,7 +27,8 @@ struct rohm_regmap_dev {
 #define ROHM_DVS_LEVEL_IDLE		BIT(1)
 #define ROHM_DVS_LEVEL_SUSPEND		BIT(2)
 #define ROHM_DVS_LEVEL_LPSR		BIT(3)
-#define ROHM_DVS_LEVEL_VALID_AMOUNT	4
+#define ROHM_DVS_LEVEL_SNVS		BIT(4)
+#define ROHM_DVS_LEVEL_VALID_AMOUNT	5
 #define ROHM_DVS_LEVEL_UNKNOWN		0
 
 /**
@@ -66,6 +67,9 @@ struct rohm_dvs_config {
 	unsigned int lpsr_reg;
 	unsigned int lpsr_mask;
 	unsigned int lpsr_on_mask;
+	unsigned int snvs_reg;
+	unsigned int snvs_mask;
+	unsigned int snvs_on_mask;
 };
 
 #if IS_ENABLED(CONFIG_REGULATOR_ROHM)
-- 
2.25.4


-- 
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]