This patch adds device tree support for the LPC32xx SoC's touchscreen
controller.
Signed-off-by: Roland Stigge <stigge@xxxxxxxxx>
Reviewed-by: Thierry Reding <thierry.reding@xxxxxxxxxxxxxxxxx>
---
Applies to v3.4-rc3
Documentation/devicetree/bindings/input/touchscreen/lpc32xx-tsc.txt | 16 ++++++++++
drivers/input/touchscreen/lpc32xx_ts.c | 10 ++++++
2 files changed, 26 insertions(+)
--- /dev/null
+++ linux-2.6/Documentation/devicetree/bindings/input/touchscreen/lpc32xx-tsc.txt
@@ -0,0 +1,16 @@
+* NXP LPC32xx SoC Touchscreen Controller (TSC)
+
+Required properties:
+- compatible: must be "nxp,lpc3220-tsc"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- interrupts: The TSC/ADC interrupt
+
+Example:
+
+ tsc@40048000 {
+ compatible = "nxp,lpc3220-tsc";
+ reg = <0x40048000 0x1000>;
+ interrupt-parent = <&mic>;
+ interrupts = <39 0>;
+ };
--- linux-2.6.orig/drivers/input/touchscreen/lpc32xx_ts.c
+++ linux-2.6/drivers/input/touchscreen/lpc32xx_ts.c
@@ -22,6 +22,7 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/slab.h>
+#include <linux/of.h>
/*
* Touchscreen controller register offsets
@@ -383,6 +384,14 @@ static const struct dev_pm_ops lpc32xx_t
#define LPC32XX_TS_PM_OPS NULL
#endif
+#ifdef CONFIG_OF
+static struct of_device_id lpc32xx_tsc_of_match[] = {
+ { .compatible = "nxp,lpc3220-tsc", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, lpc32xx_tsc_of_match);
+#endif
+
static struct platform_driver lpc32xx_ts_driver = {
.probe = lpc32xx_ts_probe,
.remove = __devexit_p(lpc32xx_ts_remove),
@@ -390,6 +399,7 @@ static struct platform_driver lpc32xx_ts
.name = MOD_NAME,
.owner = THIS_MODULE,
.pm = LPC32XX_TS_PM_OPS,
+ .of_match_table = of_match_ptr(lpc32xx_tsc_of_match),
},
};
module_platform_driver(lpc32xx_ts_driver);
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