Commit 4db4d35e authored by Chris Packham's avatar Chris Packham Committed by Brian Norris

mtd: mchp23k256: Add OF device ID table

This allows registering of this device via a Device Tree.
Signed-off-by: default avatarChris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Tested-by: default avatarAndrew Lunn <andrew@lunn.ch>
Acked-by: default avatarBoris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
parent e3db1289
* MTD SPI driver for Microchip 23K256 (and similar) serial SRAM
Required properties:
- #address-cells, #size-cells : Must be present if the device has sub-nodes
representing partitions.
- compatible : Must be "microchip,mchp23k256"
- reg : Chip-Select number
- spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at
Example:
spi-sram@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "microchip,mchp23k256";
reg = <0>;
spi-max-frequency = <20000000>;
};
...@@ -19,6 +19,7 @@ ...@@ -19,6 +19,7 @@
#include <linux/sizes.h> #include <linux/sizes.h>
#include <linux/spi/flash.h> #include <linux/spi/flash.h>
#include <linux/spi/spi.h> #include <linux/spi/spi.h>
#include <linux/of_device.h>
struct mchp23k256_flash { struct mchp23k256_flash {
struct spi_device *spi; struct spi_device *spi;
...@@ -166,9 +167,16 @@ static int mchp23k256_remove(struct spi_device *spi) ...@@ -166,9 +167,16 @@ static int mchp23k256_remove(struct spi_device *spi)
return mtd_device_unregister(&flash->mtd); return mtd_device_unregister(&flash->mtd);
} }
static const struct of_device_id mchp23k256_of_table[] = {
{ .compatible = "microchip,mchp23k256" },
{}
};
MODULE_DEVICE_TABLE(of, mchp23k256_of_table);
static struct spi_driver mchp23k256_driver = { static struct spi_driver mchp23k256_driver = {
.driver = { .driver = {
.name = "mchp23k256", .name = "mchp23k256",
.of_match_table = of_match_ptr(mchp23k256_of_table),
}, },
.probe = mchp23k256_probe, .probe = mchp23k256_probe,
.remove = mchp23k256_remove, .remove = mchp23k256_remove,
......
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