mtd: mchp23k256: Add OF device ID table
This allows registering of this device via a Device Tree. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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@ -0,0 +1,18 @@
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* MTD SPI driver for Microchip 23K256 (and similar) serial SRAM
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Required properties:
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- #address-cells, #size-cells : Must be present if the device has sub-nodes
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representing partitions.
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- compatible : Must be "microchip,mchp23k256"
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- reg : Chip-Select number
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- spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at
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Example:
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spi-sram@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "microchip,mchp23k256";
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reg = <0>;
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spi-max-frequency = <20000000>;
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};
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@ -19,6 +19,7 @@
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#include <linux/sizes.h>
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#include <linux/spi/flash.h>
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#include <linux/spi/spi.h>
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#include <linux/of_device.h>
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struct mchp23k256_flash {
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struct spi_device *spi;
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@ -166,9 +167,16 @@ static int mchp23k256_remove(struct spi_device *spi)
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return mtd_device_unregister(&flash->mtd);
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}
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static const struct of_device_id mchp23k256_of_table[] = {
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{ .compatible = "microchip,mchp23k256" },
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{}
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};
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MODULE_DEVICE_TABLE(of, mchp23k256_of_table);
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static struct spi_driver mchp23k256_driver = {
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.driver = {
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.name = "mchp23k256",
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.of_match_table = of_match_ptr(mchp23k256_of_table),
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},
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.probe = mchp23k256_probe,
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.remove = mchp23k256_remove,
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