input/tc3589x: add tc3589x keypad support
Add support for the keypad controller module found on the
TC3589X devices. This driver default adds the support for
TC35893 device.
Signed-off-by: Sundar Iyer <sundar.iyer@stericsson.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
[Some minor fixups for compilation]
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c
index 112efd3..729dbee 100644
--- a/drivers/mfd/tc3589x.c
+++ b/drivers/mfd/tc3589x.c
@@ -132,6 +132,14 @@
},
};
+static struct resource keypad_resources[] = {
+ {
+ .start = TC3589x_INT_KBDIRQ,
+ .end = TC3589x_INT_KBDIRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
static struct mfd_cell tc3589x_dev_gpio[] = {
{
.name = "tc3589x-gpio",
@@ -140,6 +148,14 @@
},
};
+static struct mfd_cell tc3589x_dev_keypad[] = {
+ {
+ .name = "tc3589x-keypad",
+ .num_resources = ARRAY_SIZE(keypad_resources),
+ .resources = &keypad_resources[0],
+ },
+};
+
static irqreturn_t tc3589x_irq(int irq, void *data)
{
struct tc3589x *tc3589x = data;
@@ -255,8 +271,18 @@
dev_info(tc3589x->dev, "added gpio block\n");
}
- return ret;
+ if (blocks & TC3589x_BLOCK_KEYPAD) {
+ ret = mfd_add_devices(tc3589x->dev, -1, tc3589x_dev_keypad,
+ ARRAY_SIZE(tc3589x_dev_keypad), NULL,
+ tc3589x->irq_base);
+ if (ret) {
+ dev_err(tc3589x->dev, "failed to keypad child\n");
+ return ret;
+ }
+ dev_info(tc3589x->dev, "added keypad block\n");
+ }
+ return ret;
}
static int __devinit tc3589x_probe(struct i2c_client *i2c,