linux-kernel - [PATCH v3 11/15] regulator: rohm-regulator: Support SNVS HW state.

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Message-ID: <4e9d048689acb3570159e87f31becf39455af3c9.1615198094.git.matti.vaittinen@fi.rohmeurope.com>
Date:   Mon, 8 Mar 2021 12:44:24 +0200
From:   Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
To:     matti.vaittinen@...rohmeurope.com, mazziesaccount@...il.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 v3 11/15] 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>
---
 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 e5392bcbc098..afcd1760c5d3 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 =]