Signed-off-by: Marek Belisko <ma...@goldelico.com>
---
.../devicetree/bindings/mfd/twl4030-madc.txt | 18 +++++++++++++
drivers/mfd/twl4030-madc.c | 31 ++++++++++++++++++++--
2 files changed, 47 insertions(+), 2 deletions(-)
create mode 100644 Documentation/devicetree/bindings/mfd/twl4030-madc.txt
diff --git a/Documentation/devicetree/bindings/mfd/twl4030-madc.txt
b/Documentation/devicetree/bindings/mfd/twl4030-madc.txt
new file mode 100644
index 0000000..9df66ab
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/twl4030-madc.txt
@@ -0,0 +1,18 @@
+Texas Instruments TWL family (twl4030) analog signal conversion monitor module
+
+Required properties:
+- compatible : must be "ti,twl4030-madc"
+- interrupts : interrupt number
+
+Example:
+twl: twl@48 {
+ reg = <0x48>;
+ interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+ interrupt-parent = <&intc>;
+
+ twl_madc: madc {
+ compatible = "ti,twl4030-madc";
+ interrupts = <1>;
+ };
+};
+
diff --git a/drivers/mfd/twl4030-madc.c b/drivers/mfd/twl4030-madc.c
index 4c583e4..9a2bbcf 100644
--- a/drivers/mfd/twl4030-madc.c
+++ b/drivers/mfd/twl4030-madc.c
@@ -695,6 +695,29 @@ static int twl4030_madc_set_power(struct twl4030_madc_data
*madc, int on)
return 0;
}
+#ifdef CONFIG_OF
+static struct twl4030_madc_platform_data *
+ twl4030_madc_of_parse(struct platform_device *pdev)
+{
+ struct twl4030_madc_platform_data *pdata;
+
+ pdata = devm_kzalloc(&pdev->dev,
+ sizeof(struct twl4030_madc_platform_data), GFP_KERNEL);
+ if (!pdata)
+ return ERR_PTR(-ENOMEM);
+
+ pdata->irq_line = platform_get_irq(pdev, 0);
+
+ return pdata;
+}
+
+static const struct of_device_id twl4030_madc_dt_match_table[] = {
+ { .compatible = "ti,twl4030-madc" },
+ {},
+};
+
+#endif
+
/*
* Initialize MADC and request for threaded irq
*/
@@ -706,8 +729,11 @@ static int twl4030_madc_probe(struct platform_device *pdev)
u8 regval;
if (!pdata) {
- dev_err(&pdev->dev, "platform_data not available\n");
- return -EINVAL;
+ pdata = twl4030_madc_of_parse(pdev);
+ if (!pdata) {
+ dev_err(&pdev->dev, "platform_data not available\n");
+ return -EINVAL;
+ }
}
madc = kzalloc(sizeof(*madc), GFP_KERNEL);
if (!madc)
@@ -807,6 +833,7 @@ static struct platform_driver twl4030_madc_driver = {
.driver = {
.name = "twl4030_madc",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(twl4030_madc_dt_match_table),
},
};
--
1.8.3.2
--
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