[PATCH v2 2/3] regulator: of: Add support for parsing operation mode
From: Henry Chen <hidden>
Date: 2016-05-23 07:18:12
Also in:
linux-devicetree, linux-mediatek, lkml
Subsystem:
the rest, voltage and current regulator framework · Maintainers:
Linus Torvalds, Liam Girdwood, Mark Brown
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 <redacted> --- 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); + } } /**
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1.8.1.1.dirty