iio: gyro: ADXRS450: Add support for ADXRS453 Digital Gyroscope

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/iio/gyro/Kconfig b/drivers/staging/iio/gyro/Kconfig
index 22aea5b4e61d6bb64d3e509f4eacca345295a9d3..ea295b25308c470525e9213ad039c46eadc95ca5 100644 (file)
--- a/drivers/staging/iio/gyro/Kconfig
+++ b/drivers/staging/iio/gyro/Kconfig
@@ -37,11 +37,11 @@ config ADIS16260
          will be called adis16260.
 
 config ADXRS450
-       tristate "Analog Devices ADXRS450 Digital Output Gyroscope SPI driver"
+       tristate "Analog Devices ADXRS450/3 Digital Output Gyroscope SPI driver"
        depends on SPI
        help
-         Say yes here to build support for Analog Devices ADXRS450 programmable
-         digital output gyroscope.
+         Say yes here to build support for Analog Devices ADXRS450 and ADXRS453
+         programmable digital output gyroscope.
 
          This driver can also be built as a module.  If so, the module
          will be called adxrs450.

diff --git a/drivers/staging/iio/gyro/adxrs450.h b/drivers/staging/iio/gyro/adxrs450.h
index b6b68287640655185442ffd7069cd4d86d0c4c7f..af0c870100b67fd9fa94e29d2aad6b8d6a434856 100644 (file)
--- a/drivers/staging/iio/gyro/adxrs450.h
+++ b/drivers/staging/iio/gyro/adxrs450.h
@@ -39,6 +39,11 @@
 
 #define ADXRS450_GET_ST(a)     ((a >> 26) & 0x3)
 
+enum {
+       ID_ADXRS450,
+       ID_ADXRS453,
+};
+
 /**
  * struct adxrs450_state - device instance specific data
  * @us:                        actual spi_device

diff --git a/drivers/staging/iio/gyro/adxrs450_core.c b/drivers/staging/iio/gyro/adxrs450_core.c
index a146d55c37c8eadecbcf815a9f86fba2db13db3d..61690e26f22d2a8f3ec51a860a8321a24c60576a 100644 (file)
--- a/drivers/staging/iio/gyro/adxrs450_core.c
+++ b/drivers/staging/iio/gyro/adxrs450_core.c
@@ -1,5 +1,5 @@
 /*
- * ADXRS450 Digital Output Gyroscope Driver
+ * ADXRS450/ADXRS453 Digital Output Gyroscope Driver
  *
  * Copyright 2011 Analog Devices Inc.
  *
@@ -323,20 +323,36 @@ static int adxrs450_read_raw(struct iio_dev *indio_dev,
        return ret;
 }
 
-static const struct iio_chan_spec adxrs450_channels[] = {
-       {
-               .type = IIO_ANGL_VEL,
-               .modified = 1,
-               .channel2 = IIO_MOD_Z,
-               .info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
-               IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE_BIT |
-               IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
-       }, {
-               .type = IIO_TEMP,
-               .indexed = 1,
-               .channel = 0,
-               .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
-       }
+static const struct iio_chan_spec adxrs450_channels[2][2] = {
+       [ID_ADXRS450] = {
+               {
+                       .type = IIO_ANGL_VEL,
+                       .modified = 1,
+                       .channel2 = IIO_MOD_Z,
+                       .info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+                       IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE_BIT |
+                       IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
+               }, {
+                       .type = IIO_TEMP,
+                       .indexed = 1,
+                       .channel = 0,
+                       .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
+               }
+       },
+       [ID_ADXRS453] = {
+               {
+                       .type = IIO_ANGL_VEL,
+                       .modified = 1,
+                       .channel2 = IIO_MOD_Z,
+                       .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+                       IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE_BIT,
+               }, {
+                       .type = IIO_TEMP,
+                       .indexed = 1,
+                       .channel = 0,
+                       .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
+               }
+       },
 };
 
 static const struct iio_info adxrs450_info = {
@@ -366,7 +382,8 @@ static int __devinit adxrs450_probe(struct spi_device *spi)
        indio_dev->dev.parent = &spi->dev;
        indio_dev->info = &adxrs450_info;
        indio_dev->modes = INDIO_DIRECT_MODE;
-       indio_dev->channels = adxrs450_channels;
+       indio_dev->channels =
+               adxrs450_channels[spi_get_device_id(spi)->driver_data];
        indio_dev->num_channels = ARRAY_SIZE(adxrs450_channels);
        indio_dev->name = spi->dev.driver->name;
 
@@ -396,6 +413,13 @@ static int adxrs450_remove(struct spi_device *spi)
        return 0;
 }
 
+static const struct spi_device_id adxrs450_id[] = {
+       {"adxrs450", ID_ADXRS450},
+       {"adxrs453", ID_ADXRS453},
+       {}
+};
+MODULE_DEVICE_TABLE(spi, adxrs450_id);
+
 static struct spi_driver adxrs450_driver = {
        .driver = {
                .name = "adxrs450",
@@ -403,6 +427,7 @@ static struct spi_driver adxrs450_driver = {
        },
        .probe = adxrs450_probe,
        .remove = __devexit_p(adxrs450_remove),
+       .id_table       = adxrs450_id,
 };
 
 static __init int adxrs450_init(void)
@@ -418,6 +443,5 @@ static __exit void adxrs450_exit(void)
 module_exit(adxrs450_exit);
 
 MODULE_AUTHOR("Cliff Cai <cliff.cai@xxxxxxxxxx>");
-MODULE_DESCRIPTION("Analog Devices ADXRS450 Gyroscope SPI driver");
+MODULE_DESCRIPTION("Analog Devices ADXRS450/ADXRS453 Gyroscope SPI driver");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:adxrs450");