[PATCH] net: rfkill-regulator: Add devicetree support.

Marek Belisko
2014-02-07T19:48:49Z

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Marek Belisko <marek@goldelico.com>
---
Based on Neil's patch and extend for documentation and bindings include.

.../bindings/net/rfkill/rfkill-relugator.txt | 28 ++++++++++++++++
include/dt-bindings/net/rfkill-regulator.h | 23 +++++++++++++
net/rfkill/rfkill-regulator.c | 38 ++++++++++++++++++++++
3 files changed, 89 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/rfkill/rfkill-relugator.txt
create mode 100644 include/dt-bindings/net/rfkill-regulator.h

diff --git a/Documentation/devicetree/bindings/net/rfkill/rfkill-relugator.txt b/Documentation/devicetree/bindings/net/rfkill/rfkill-relugator.txt
new file mode 100644
index 0000000..cdb7dd7
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/rfkill/rfkill-relugator.txt
@@ -0,0 +1,28 @@
+Regulator consumer for rfkill devices
+
+Required properties:
+- compatible : Must be "rfkill-regulator".
+- label : Name of rfkill device.
+- type : Type of rfkill device.
+
+Possible values (defined in include/dt-bindings/net/rfkill-regulator.h):
+ RFKILL_TYPE_ALL
+ RFKILL_TYPE_WLAN
+ RFKILL_TYPE_BLUETOOTH
+ RFKILL_TYPE_UWB
+ RFKILL_TYPE_WIMAX
+ RFKILL_TYPE_WWAN
+ RFKILL_TYPE_GPS
+ RFKILL_TYPE_FM
+ RFKILL_TYPE_NFC
+
+- vrfkill-supply - regulator device.
+
+Example:
+ gps-rfkill {
+ compatible = "rfkill-regulator";
+ label = "GPS";
+ type = <RFKILL_TYPE_GPS>;
+ vrfkill-supply = <&reg>;
+ };
+
diff --git a/include/dt-bindings/net/rfkill-regulator.h b/include/dt-bindings/net/rfkill-regulator.h
new file mode 100644
index 0000000..ae32273
--- /dev/null
+++ b/include/dt-bindings/net/rfkill-regulator.h
@@ -0,0 +1,23 @@
+/*
+ * This header provides macros for rfkill-regulator bindings.
+ *
+ * Copyright (C) 2014 Marek Belisko <marek@goldelico.com>
+ *
+ * GPLv2 only
+ */
+
+#ifndef __DT_BINDINGS_RFKILL_REGULATOR_H__
+#define __DT_BINDINGS_RFKILL_REGULATOR_H__
+
+
+#define RFKILL_TYPE_ALL (0)
+#define RFKILL_TYPE_WLAN (1)
+#define RFKILL_TYPE_BLUETOOTH (2)
+#define RFKILL_TYPE_UWB (3)
+#define RFKILL_TYPE_WIMAX (4)
+#define RFKILL_TYPE_WWAN (5)
+#define RFKILL_TYPE_GPS (6)
+#define RFKILL_TYPE_FM (7)
+#define RFKILL_TYPE_NFC (8)
+
+#endif /* __DT_BINDINGS_RFKILL_REGULATOR_H__ */
diff --git a/net/rfkill/rfkill-regulator.c b/net/rfkill/rfkill-regulator.c
index cf5b145..a04aff8 100644
--- a/net/rfkill/rfkill-regulator.c
+++ b/net/rfkill/rfkill-regulator.c
@@ -19,6 +19,7 @@
#include <linux/regulator/consumer.h>
#include <linux/rfkill.h>
#include <linux/rfkill-regulator.h>
+#include <linux/of_platform.h>

struct rfkill_regulator_data {
struct rfkill *rf_kill;
@@ -57,6 +58,31 @@ static struct rfkill_ops rfkill_regulator_ops = {
.set_block = rfkill_regulator_set_block,
};

+#ifdef CONFIG_OF
+static struct rfkill_regulator_platform_data *
+rfkill_regulator_parse_pdata(struct device *dev)
+{
+ struct rfkill_regulator_platform_data *pdata;
+ struct device_node *np = dev->of_node;
+ u32 num;
+ if (!np)
+ return NULL;
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return NULL;
+ if (of_property_read_u32(np, "type", &num) == 0)
+ pdata->type = num;
+ of_property_read_string(np, "label", &pdata->name);
+ return pdata;
+}
+#else
+static inline struct rfkill_regulator_platform_data *
+rfkill_regulator_parse_pdata(struct device *dev)
+{
+ return NULL;
+}
+#endif
+
static int rfkill_regulator_probe(struct platform_device *pdev)
{
struct rfkill_regulator_platform_data *pdata = pdev->dev.platform_data;
@@ -65,6 +91,9 @@ static int rfkill_regulator_probe(struct platform_device *pdev)
struct rfkill *rf_kill;
int ret = 0;

+ if (!pdata)
+ pdata = rfkill_regulator_parse_pdata(&pdev->dev);
+
if (pdata == NULL) {
dev_err(&pdev->dev, "no platform data\n");
return -ENODEV;
@@ -137,12 +166,21 @@ static int rfkill_regulator_remove(struct platform_device *pdev)
return 0;
}

+#ifdef CONFIG_OF
+static const struct of_device_id rfkill_regulator_match[] = {
+ {.compatible = "rfkill-regulator"},
+ {}
+};
+MODULE_DEVICE_TABLE(of, rfkill_regulator_match);
+#endif
+
static struct platform_driver rfkill_regulator_driver = {
.probe = rfkill_regulator_probe,
.remove = rfkill_regulator_remove,
.driver = {
.name = "rfkill-regulator",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(rfkill_regulator_match),
},
};

--
1.8.3.2