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iio: accel: st_accel: handle deprecated bindings

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The earlier deployed LIS3LV02DL driver had already defined a few
DT bindings that need to be supported by the new more generic
driver and listed as compatible but deprecated bindings in the
documentation.

After this we can start to activate the new driver with the old
systems where applicable.

As part of this enablement: make us depend on the old drivers
not being in use so we don't get a kernel with two competing
drivers.

Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Linus Walleij 2017-01-05 14:32:33 +01:00 committed by Jonathan Cameron
parent 17be2a2905
commit 762227721f
5 changed files with 19 additions and 1 deletions
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2
Documentation/devicetree/bindings/iio/accel/lis302.txt
View File

@ -5,7 +5,7 @@ that apply in on the generic device (independent from the bus).
Required properties for the SPI bindings:
- compatible: should be set to "st,lis3lv02d_spi"
- compatible: should be set to "st,lis3lv02d-spi"
- reg: the chipselect index
- spi-max-frequency: maximal bus speed, should be set to 1000000 unless
constrained by external circuitry

2
Documentation/devicetree/bindings/iio/st-sensors.txt
View File

@ -27,6 +27,8 @@ standard bindings from pinctrl/pinctrl-bindings.txt.
Valid compatible strings:
Accelerometers:
- st,lis3lv02d (deprecated, use st,lis3lv02dl-accel)
- st,lis302dl-spi (deprecated, use st,lis3lv02dl-accel)
- st,lis3lv02dl-accel
- st,lsm303dlh-accel
- st,lsm303dlhc-accel

2
drivers/iio/accel/Kconfig
View File

@ -140,11 +140,13 @@ config IIO_ST_ACCEL_3AXIS
config IIO_ST_ACCEL_I2C_3AXIS
tristate
depends on !SENSORS_LIS3_I2C
depends on IIO_ST_ACCEL_3AXIS
depends on IIO_ST_SENSORS_I2C
config IIO_ST_ACCEL_SPI_3AXIS
tristate
depends on !SENSORS_LIS3_SPI
depends on IIO_ST_ACCEL_3AXIS
depends on IIO_ST_SENSORS_SPI

5
drivers/iio/accel/st_accel_i2c.c
View File

@ -21,6 +21,11 @@
#ifdef CONFIG_OF
static const struct of_device_id st_accel_of_match[] = {
{
/* An older compatible */
.compatible = "st,lis3lv02d",
.data = LIS3LV02DL_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis3lv02dl-accel",
.data = LIS3LV02DL_ACCEL_DEV_NAME,

9
drivers/iio/accel/st_accel_spi.c
View File

@ -65,9 +65,18 @@ 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 lis302dl_spi_dt_ids[] = {
{ .compatible = "st,lis302dl-spi" },
{}
};
MODULE_DEVICE_TABLE(of, lis302dl_spi_dt_ids);
#endif
static struct spi_driver st_accel_driver = {
.driver = {
.name = "st-accel-spi",
.of_match_table = of_match_ptr(lis302dl_spi_dt_ids),
},
.probe = st_accel_spi_probe,
.remove = st_accel_spi_remove,