[PATCH v5 6/10] input: Device tree support for LPC32xx touchscreen
From: Roland Stigge <hidden>
Date: 2012-04-21 09:35:24
Also in:
linux-arm-kernel, lkml
This patch adds device tree support for the LPC32xx SoC's touchscreen controller. Signed-off-by: Roland Stigge <redacted> Reviewed-by: Thierry Reding <redacted> --- 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);