Device tree support for OMAP4+ dmic cpu dai driver.
Signed-off-by: Peter Ujfalusi <[email protected]>
---
.../devicetree/bindings/sound/omap-dmic.txt | 21 ++++++++++++++++++++
sound/soc/omap/omap-dmic.c | 8 +++++++
2 files changed, 29 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/sound/omap-dmic.txt
diff --git a/Documentation/devicetree/bindings/sound/omap-dmic.txt
b/Documentation/devicetree/bindings/sound/omap-dmic.txt
new file mode 100644
index 0000000..fd8105f
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/omap-dmic.txt
@@ -0,0 +1,21 @@
+* Texas Instruments OMAP4+ Digital Microphone Module
+
+Required properties:
+- compatible: "ti,omap4-dmic"
+- reg: Register location and size as an array:
+ <MPU access base address, size>,
+ <L3 interconnect address, size>;
+- interrupts: Interrupt number for DMIC
+- interrupt-parent: The parent interrupt controller
+- ti,hwmods: Name of the hwmod associated with OMAP dmic IP
+
+Example:
+
+dmic: dmic@4012e000 {
+ compatible = "ti,omap4-dmic";
+ reg = <0x4012e000 0x7f>, /* MPU private access */
+ <0x4902e000 0x7f>; /* L3 Interconnect */
+ interrupts = <0 114 0x4>;
+ interrupt-parent = <&gic>;
+ ti,hwmods = "dmic";
+};
diff --git a/sound/soc/omap/omap-dmic.c b/sound/soc/omap/omap-dmic.c
index 4dcb5a7..75f5dca 100644
--- a/sound/soc/omap/omap-dmic.c
+++ b/sound/soc/omap/omap-dmic.c
@@ -32,6 +32,7 @@
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/pm_runtime.h>
+#include <linux/of_device.h>
#include <plat/dma.h>
#include <sound/core.h>
@@ -528,10 +529,17 @@ static int __devexit asoc_dmic_remove(struct
platform_device *pdev)
return 0;
}
+static const struct of_device_id omap_dmic_of_match[] = {
+ { .compatible = "ti,omap4-dmic", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, omap_dmic_of_match);
+
static struct platform_driver asoc_dmic_driver = {
.driver = {
.name = "omap-dmic",
.owner = THIS_MODULE,
+ .of_match_table = omap_dmic_of_match,
},
.probe = asoc_dmic_probe,
.remove = __devexit_p(asoc_dmic_remove),
--
1.7.8.6
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