iio: accel: st_accel_spi: add OF capability to st_accel_spi

Add device tree support for LIS3DH, LSM330D, LSM330DL, LSM330DLC,
LIS331DLH, LSM330, LSM303AGR, LIS2DH12, LIS3L02DQ, LNG2DM accel sensors.
Fix LIS302DL support defining of_device_id data field in st_accel_of_match
table

Fixes: 762227721fe6 (iio: accel: st_accel: handle deprecated bindings)
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index d13742edee0e03da3b1a3ec2a867042441fccdcb..6b2eafa45cbb597eaac1a9035a377e3b1dbd07c3 100644 (file)
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -18,6 +18,65 @@
 #include <linux/iio/common/st_sensors_spi.h>
 #include "st_accel.h"
 
+#ifdef CONFIG_OF
+/*
+ * For new single-chip sensors use <device_name> as compatible string.
+ * For old single-chip devices keep <device_name>-accel to maintain
+ * compatibility
+ */
+static const struct of_device_id st_accel_of_match[] = {
+       {
+               /* An older compatible */
+               .compatible = "st,lis302dl-spi",
+               .data = LIS3LV02DL_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lis3dh-accel",
+               .data = LIS3DH_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm330d-accel",
+               .data = LSM330D_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm330dl-accel",
+               .data = LSM330DL_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm330dlc-accel",
+               .data = LSM330DLC_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lis331dlh-accel",
+               .data = LIS331DLH_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm330-accel",
+               .data = LSM330_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm303agr-accel",
+               .data = LSM303AGR_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lis2dh12-accel",
+               .data = LIS2DH12_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lis3l02dq",
+               .data = LIS3L02DQ_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lng2dm-accel",
+               .data = LNG2DM_ACCEL_DEV_NAME,
+       },
+       {}
+};
+MODULE_DEVICE_TABLE(of, st_accel_of_match);
+#else
+#define st_accel_of_match      NULL
+#endif
+
 static int st_accel_spi_probe(struct spi_device *spi)
 {
        struct iio_dev *indio_dev;
@@ -30,6 +89,8 @@ static int st_accel_spi_probe(struct spi_device *spi)
 
        adata = iio_priv(indio_dev);
 
+       st_sensors_of_name_probe(&spi->dev, st_accel_of_match,
+                                spi->modalias, sizeof(spi->modalias));
        st_sensors_spi_configure(indio_dev, spi, adata);
 
        err = st_accel_common_probe(indio_dev);
@@ -61,14 +122,6 @@ static const struct spi_device_id st_accel_id_table[] = {
 };
 MODULE_DEVICE_TABLE(spi, st_accel_id_table);
 
-#ifdef CONFIG_OF
-static const struct of_device_id st_accel_of_match[] = {
-       { .compatible = "st,lis302dl-spi" },
-       {}
-};
-MODULE_DEVICE_TABLE(of, st_accel_of_match);
-#endif
-
 static struct spi_driver st_accel_driver = {
        .driver = {
                .name = "st-accel-spi",