[PATCH v2 09/12] regulator: register dependency parser for firmware nodes
From: Tomeu Vizoso <hidden>
Date: 2015-07-01 09:45:02
Also in:
alsa-devel, dri-devel, linux-acpi, linux-devicetree, linux-gpio, linux-pwm, lkml
Subsystem:
the rest, voltage and current regulator framework · Maintainers:
Linus Torvalds, Liam Girdwood, Mark Brown
So others can find out what depends on regulators, as specified in bindings/regulator/regulator.txt. Signed-off-by: Tomeu Vizoso <redacted> --- Changes in v2: None drivers/regulator/core.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index c9f7201..535cad0 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c@@ -4112,6 +4112,31 @@ static const struct file_operations regulator_summary_fops = { #endif }; +static void regulator_get_dependencies(struct fwnode_handle *fwnode, + struct list_head *deps) +{ + struct device_node *np; + struct property *pp; + struct device_node *dep; + + np = to_of_node(fwnode); + if (!np) + return; + + for_each_property_of_node(np, pp) { + if (!strends(pp->name, "-supply")) + continue; + + dep = of_parse_phandle(np, pp->name, 0); + if (!dep) + continue; + + fwnode_add_dependency(&dep->fwnode, deps); + + of_node_put(dep); + } +} + static int __init regulator_init(void) { int ret;
@@ -4130,6 +4155,8 @@ static int __init regulator_init(void) regulator_dummy_init(); + fwnode_add_dependency_parser(regulator_get_dependencies); + return ret; }
--
2.4.1