diff options
Diffstat (limited to 'include/linux/spi/spi-mem.h')
| -rw-r--r-- | include/linux/spi/spi-mem.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index bb4bd15ae1f6..b2bd4b4127c4 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -3,7 +3,9 @@ * Copyright (C) 2018 Exceet Electronics GmbH * Copyright (C) 2018 Bootlin * - * Author: Boris Brezillon <boris.brezillon@bootlin.com> + * Author: + * Peter Pan <peterpandong@micron.com> + * Boris Brezillon <boris.brezillon@bootlin.com> */ #ifndef __LINUX_SPI_MEM_H @@ -122,7 +124,8 @@ struct spi_mem_op { /** * struct spi_mem - describes a SPI memory device * @spi: the underlying SPI device - * @drvpriv: spi_mem_drviver private data + * @drvpriv: spi_mem_driver private data + * @name: name of the SPI memory device * * Extra information that describe the SPI memory device and may be needed by * the controller to properly handle this device should be placed here. @@ -133,6 +136,7 @@ struct spi_mem_op { struct spi_mem { struct spi_device *spi; void *drvpriv; + const char *name; }; /** @@ -165,6 +169,13 @@ static inline void *spi_mem_get_drvdata(struct spi_mem *mem) * limitations) * @supports_op: check if an operation is supported by the controller * @exec_op: execute a SPI memory operation + * @get_name: get a custom name for the SPI mem device from the controller. + * This might be needed if the controller driver has been ported + * to use the SPI mem layer and a custom name is used to keep + * mtdparts compatible. + * Note that if the implementation of this function allocates memory + * dynamically, then it should do so with devm_xxx(), as we don't + * have a ->free_name() function. * * This interface should be implemented by SPI controllers providing an * high-level interface to execute SPI memory operation, which is usually the @@ -176,6 +187,7 @@ struct spi_controller_mem_ops { const struct spi_mem_op *op); int (*exec_op)(struct spi_mem *mem, const struct spi_mem_op *op); + const char *(*get_name)(struct spi_mem *mem); }; /** @@ -234,6 +246,8 @@ bool spi_mem_supports_op(struct spi_mem *mem, int spi_mem_exec_op(struct spi_mem *mem, const struct spi_mem_op *op); +const char *spi_mem_get_name(struct spi_mem *mem); + int spi_mem_driver_register_with_owner(struct spi_mem_driver *drv, struct module *owner); |