iio: accel: st_accel: handle deprecated bindings
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>
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@ -5,7 +5,7 @@ that apply in on the generic device (independent from the bus).
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Required properties for the SPI bindings:
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- compatible: should be set to "st,lis3lv02d_spi"
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- compatible: should be set to "st,lis3lv02d-spi"
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- reg: the chipselect index
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- spi-max-frequency: maximal bus speed, should be set to 1000000 unless
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constrained by external circuitry
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@ -27,6 +27,8 @@ standard bindings from pinctrl/pinctrl-bindings.txt.
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Valid compatible strings:
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Accelerometers:
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- st,lis3lv02d (deprecated, use st,lis3lv02dl-accel)
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- st,lis302dl-spi (deprecated, use st,lis3lv02dl-accel)
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- st,lis3lv02dl-accel
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- st,lsm303dlh-accel
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- st,lsm303dlhc-accel
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@ -140,11 +140,13 @@ config IIO_ST_ACCEL_3AXIS
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config IIO_ST_ACCEL_I2C_3AXIS
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tristate
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depends on !SENSORS_LIS3_I2C
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depends on IIO_ST_ACCEL_3AXIS
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depends on IIO_ST_SENSORS_I2C
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config IIO_ST_ACCEL_SPI_3AXIS
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tristate
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depends on !SENSORS_LIS3_SPI
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depends on IIO_ST_ACCEL_3AXIS
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depends on IIO_ST_SENSORS_SPI
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@ -21,6 +21,11 @@
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#ifdef CONFIG_OF
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static const struct of_device_id st_accel_of_match[] = {
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{
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/* An older compatible */
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.compatible = "st,lis3lv02d",
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.data = LIS3LV02DL_ACCEL_DEV_NAME,
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},
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{
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.compatible = "st,lis3lv02dl-accel",
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.data = LIS3LV02DL_ACCEL_DEV_NAME,
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@ -65,9 +65,18 @@ static const struct spi_device_id st_accel_id_table[] = {
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};
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MODULE_DEVICE_TABLE(spi, st_accel_id_table);
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#ifdef CONFIG_OF
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static const struct of_device_id lis302dl_spi_dt_ids[] = {
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{ .compatible = "st,lis302dl-spi" },
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{}
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};
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MODULE_DEVICE_TABLE(of, lis302dl_spi_dt_ids);
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#endif
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static struct spi_driver st_accel_driver = {
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.driver = {
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.name = "st-accel-spi",
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.of_match_table = of_match_ptr(lis302dl_spi_dt_ids),
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},
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.probe = st_accel_spi_probe,
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.remove = st_accel_spi_remove,
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