4 files changed, 78 insertions, 1 deletions

diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c
index 366190609c73..271338bdb6be 100644
--- a/drivers/hwmon/lis3lv02d.c
+++ b/drivers/hwmon/lis3lv02d.c
@@ -438,6 +438,26 @@ int lis3lv02d_init_device(struct lis3lv02d *dev)
         if (lis3lv02d_joystick_enable())
                 printk(KERN_ERR DRIVER_NAME ": joystick initialization failed\n");
 
+        /* passing in platform specific data is purely optional and only
+         * used by the SPI transport layer at the moment */
+        if (dev->pdata) {
+                struct lis3lv02d_platform_data *p = dev->pdata;
+
+                if (p->click_flags && (dev->whoami == LIS_SINGLE_ID)) {
+                        dev->write(dev, CLICK_CFG, p->click_flags);
+                        dev->write(dev, CLICK_TIMELIMIT, p->click_time_limit);
+                        dev->write(dev, CLICK_LATENCY, p->click_latency);
+                        dev->write(dev, CLICK_WINDOW, p->click_window);
+                        dev->write(dev, CLICK_THSZ, p->click_thresh_z & 0xf);
+                        dev->write(dev, CLICK_THSY_X,
+                                        (p->click_thresh_x & 0xf) |
+                                        (p->click_thresh_y << 4));
+                }
+
+                if (p->irq_cfg)
+                        dev->write(dev, CTRL_REG3, p->irq_cfg);
+        }
+
         /* bail if we did not get an IRQ from the bus layer */
         if (!dev->irq) {
                 printk(KERN_ERR DRIVER_NAME
diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h
index 5a5a196e6a66..e320e2f511f1 100644
--- a/drivers/hwmon/lis3lv02d.h
+++ b/drivers/hwmon/lis3lv02d.h
@@ -29,12 +29,14 @@
  * They can also be connected via I²C.
  */
 
+#include <linux/lis3lv02d.h>
+
 /* 2-byte registers */
 #define LIS_DOUBLE_ID   0x3A /* LIS3LV02D[LQ] */
 /* 1-byte registers */
 #define LIS_SINGLE_ID   0x3B /* LIS[32]02DL and others */
 
-enum lis3lv02d_reg {
+enum lis3_reg {
         WHO_AM_I        = 0x0F,
         OFFSET_X        = 0x16,
         OFFSET_Y        = 0x17,
@@ -62,6 +64,19 @@ enum lis3lv02d_reg {
         FF_WU_THS_L     = 0x34,
         FF_WU_THS_H     = 0x35,
         FF_WU_DURATION  = 0x36,
+};
+
+enum lis302d_reg {
+        CLICK_CFG       = 0x38,
+        CLICK_SRC       = 0x39,
+        CLICK_THSY_X    = 0x3B,
+        CLICK_THSZ      = 0x3C,
+        CLICK_TIMELIMIT = 0x3D,
+        CLICK_LATENCY   = 0x3E,
+        CLICK_WINDOW    = 0x3F,
+};
+
+enum lis3lv02d_reg {
         DD_CFG          = 0x38,
         DD_SRC          = 0x39,
         DD_ACK          = 0x3A,
@@ -183,6 +198,8 @@ struct lis3lv02d {
         struct fasync_struct    *async_queue; /* queue for the misc device */
         wait_queue_head_t       misc_wait; /* Wait queue for the misc device */
         unsigned long           misc_opened; /* bit0: whether the device is open */
+
+        struct lis3lv02d_platform_data *pdata;  /* for passing board config */
 };
 
 int lis3lv02d_init_device(struct lis3lv02d *lis3);
diff --git a/drivers/hwmon/lis3lv02d_spi.c b/drivers/hwmon/lis3lv02d_spi.c
index 07ae74b0e191..3827ff04485f 100644
--- a/drivers/hwmon/lis3lv02d_spi.c
+++ b/drivers/hwmon/lis3lv02d_spi.c
@@ -72,6 +72,7 @@ static int __devinit lis302dl_spi_probe(struct spi_device *spi)
         lis3_dev.write = lis3_spi_write;
         lis3_dev.irq = spi->irq;
         lis3_dev.ac = lis3lv02d_axis_normal;
+        lis3_dev.pdata = spi->dev.platform_data;
         spi_set_drvdata(spi, &lis3_dev);
 
         ret = lis3lv02d_init_device(&lis3_dev);
diff --git a/include/linux/lis3lv02d.h b/include/linux/lis3lv02d.h
new file mode 100644
index 000000000000..ad651f4e45ac
--- /dev/null
+++ b/include/linux/lis3lv02d.h
@@ -0,0 +1,39 @@
+#ifndef __LIS3LV02D_H_
+#define __LIS3LV02D_H_
+
+struct lis3lv02d_platform_data {
+        /* please note: the 'click' feature is only supported for
+         * LIS[32]02DL variants of the chip and will be ignored for
+         * others */
+#define LIS3_CLICK_SINGLE_X     (1 << 0)
+#define LIS3_CLICK_DOUBLE_X     (1 << 1)
+#define LIS3_CLICK_SINGLE_Y     (1 << 2)
+#define LIS3_CLICK_DOUBLE_Y     (1 << 3)
+#define LIS3_CLICK_SINGLE_Z     (1 << 4)
+#define LIS3_CLICK_DOUBLE_Z     (1 << 5)
+        unsigned char click_flags;
+        unsigned char click_thresh_x;
+        unsigned char click_thresh_y;
+        unsigned char click_thresh_z;
+        unsigned char click_time_limit;
+        unsigned char click_latency;
+        unsigned char click_window;
+
+#define LIS3_IRQ1_DISABLE       (0 << 0)
+#define LIS3_IRQ1_FF_WU_1       (1 << 0)
+#define LIS3_IRQ1_FF_WU_2       (2 << 0)
+#define LIS3_IRQ1_FF_WU_12      (3 << 0)
+#define LIS3_IRQ1_DATA_READY    (4 << 0)
+#define LIS3_IRQ1_CLICK         (7 << 0)
+#define LIS3_IRQ2_DISABLE       (0 << 3)
+#define LIS3_IRQ2_FF_WU_1       (1 << 3)
+#define LIS3_IRQ2_FF_WU_2       (2 << 3)
+#define LIS3_IRQ2_FF_WU_12      (3 << 3)
+#define LIS3_IRQ2_DATA_READY    (4 << 3)
+#define LIS3_IRQ2_CLICK         (7 << 3)
+#define LIS3_IRQ_OPEN_DRAIN     (1 << 6)
+#define LIS3_IRQ_ACTIVE_HIGH    (1 << 7)
+        unsigned char irq_cfg;
+};
+
+#endif /* __LIS3LV02D_H_ */