[PATCH v2 2/3] regulator: of: Add support for parsing operation mode

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




Some regulators support their operating mode to be changed by consumers for
module specific purpose.

This patch adds support to parse those properties and fill the regulator
constraints so the regulator core can call the regualtor_set_mode to change
the modes.

Signed-off-by: Henry Chen <henryc.chen@xxxxxxxxxxxx>
---
 drivers/regulator/of_regulator.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 6b0aa80..7f8d82e 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -31,7 +31,7 @@ static void of_get_regulation_constraints(struct device_node *np,
 	struct regulation_constraints *constraints = &(*init_data)->constraints;
 	struct regulator_state *suspend_state;
 	struct device_node *suspend_np;
-	int ret, i;
+	int ret, i, cnt;
 	u32 pval;
 
 	constraints->name = of_get_property(np, "regulator-name", NULL);
@@ -167,6 +167,19 @@ static void of_get_regulation_constraints(struct device_node *np,
 		suspend_state = NULL;
 		suspend_np = NULL;
 	}
+	cnt = of_property_count_elems_of_size(np,
+					      "regulator-supported-modes",
+					      sizeof(u32));
+	if (cnt > 0)
+		constraints->valid_ops_mask |= REGULATOR_CHANGE_MODE;
+
+	for (i = 0; i < cnt; i++) {
+		u32 mode;
+
+		of_property_read_u32_index(np, "regulator-supported-modes",
+					   i, &mode);
+		constraints->valid_modes_mask |= (1 << mode);
+	}
 }
 
 /**
-- 
1.8.1.1.dirty

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux