input: keypad: ep93xx: add DT support for Cirrus EP93xx

- get keymap from the device tree
- find register range from the device tree
- get interrupts from device tree

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>

diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c
index f5bf7524722a7867d0e8bac07b582188c68d77f1..732e3c010cb6a03bbabe66ed3357c02a05e0eaa9 100644 (file)
--- a/drivers/input/keyboard/ep93xx_keypad.c
+++ b/drivers/input/keyboard/ep93xx_keypad.c
@@ -20,6 +20,8 @@
 #include <linux/bits.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
 #include <linux/interrupt.h>
 #include <linux/clk.h>
 #include <linux/io.h>
@@ -315,10 +317,19 @@ static int ep93xx_keypad_remove(struct platform_device *pdev)
        return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id ep93xx_keypad_of_ids[] = {
+       { .compatible = "cirrus,ep93xx-keypad" },
+       {},
+};
+MODULE_DEVICE_TABLE(of, ep93xx_keypad_of_ids);
+#endif
+
 static struct platform_driver ep93xx_keypad_driver = {
        .driver         = {
                .name   = "ep93xx-keypad",
                .pm     = &ep93xx_keypad_pm_ops,
+               .of_match_table = of_match_ptr(ep93xx_keypad_of_ids),
        },
        .probe          = ep93xx_keypad_probe,
        .remove         = ep93xx_keypad_remove,