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@fi.rohmeurope.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/regulator/rohm-regulator.c b/drivers/regulator/rohm-regulator.c
index 63aabb8..6e0d9c0 100644 (file)
--- 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 9e2880e..a914428 100644 (file)
--- 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)