Source of spi-mem.c - linux-imx - PHYTEC BitBucket (Stash)

Ignore whitespace
Show whitespace characters
Hide e-diff
Unified diff
Side-by-side diff
Source viewDiff to previous
 
 */
void devm_spi_mem_dirmap_destroy(struct device *dev,
                 struct spi_mem_dirmap_desc *desc)
{
    devres_release(dev, devm_spi_mem_dirmap_release,
               devm_spi_mem_dirmap_match, desc);
}
EXPORT_SYMBOL_GPL(devm_spi_mem_dirmap_destroy);
​
/**
 * spi_mem_dirmap_dirmap_read() - Read data through a direct mapping
 * spi_mem_dirmap_read() - Read data through a direct mapping
 * @desc: direct mapping descriptor
 * @offs: offset to start reading from. Note that this is not an absolute
 *    offset, but the offset within the direct mapping which already has
 *    its own offset
 * @len: length in bytes
 * @buf: destination buffer. This buffer must be DMA-able
 *
 * This function reads data from a memory device using a direct mapping
 * previously instantiated with spi_mem_dirmap_create().
 *
Show more
        spi_mem_access_end(desc->mem);
    } else {
        ret = -ENOTSUPP;
    }
​
    return ret;
}
EXPORT_SYMBOL_GPL(spi_mem_dirmap_read);
​
/**
 * spi_mem_dirmap_dirmap_write() - Write data through a direct mapping
 * spi_mem_dirmap_write() - Write data through a direct mapping
 * @desc: direct mapping descriptor
 * @offs: offset to start writing from. Note that this is not an absolute
 *    offset, but the offset within the direct mapping which already has
 *    its own offset
 * @len: length in bytes
 * @buf: source buffer. This buffer must be DMA-able
 *
 * This function writes data to a memory device using a direct mapping
 * previously instantiated with spi_mem_dirmap_create().
 *