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authorBen Hutchings <ben@decadent.org.uk>2014-09-29 05:47:54 -0400
committerBrian Norris <computersforpeace@gmail.com>2014-10-17 12:29:21 -0400
commit70f3ce0510afdad7cbaf27ab7ab961377205c782 (patch)
tree29df1a4e2259f90e0d2a1d35a7c8484688dc6253 /include/linux/mtd
parent90e55b3812a1245bb674afcc4410ddba7db402f6 (diff)
mtd: spi-nor: make spi_nor_scan() take a chip type name, not spi_device_id
Drivers currently call spi_nor_match_id() and then spi_nor_scan(). This adds a dependency on struct spi_device_id which we want to avoid. Make spi_nor_scan() do it for them. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'include/linux/mtd')
-rw-r--r--include/linux/mtd/spi-nor.h20
1 files changed, 3 insertions, 17 deletions
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index 9e6294f32ba8..a5a7a086748d 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -187,32 +187,18 @@ struct spi_nor {
187/** 187/**
188 * spi_nor_scan() - scan the SPI NOR 188 * spi_nor_scan() - scan the SPI NOR
189 * @nor: the spi_nor structure 189 * @nor: the spi_nor structure
190 * @id: the spi_device_id provided by the driver 190 * @name: the chip type name
191 * @mode: the read mode supported by the driver 191 * @mode: the read mode supported by the driver
192 * 192 *
193 * The drivers can use this fuction to scan the SPI NOR. 193 * The drivers can use this fuction to scan the SPI NOR.
194 * In the scanning, it will try to get all the necessary information to 194 * In the scanning, it will try to get all the necessary information to
195 * fill the mtd_info{} and the spi_nor{}. 195 * fill the mtd_info{} and the spi_nor{}.
196 * 196 *
197 * The board may assigns a spi_device_id with @id which be used to compared with 197 * The chip type name can be provided through the @name parameter.
198 * the spi_device_id detected by the scanning.
199 * 198 *
200 * Return: 0 for success, others for failure. 199 * Return: 0 for success, others for failure.
201 */ 200 */
202int spi_nor_scan(struct spi_nor *nor, const struct spi_device_id *id, 201int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode);
203 enum read_mode mode);
204extern const struct spi_device_id spi_nor_ids[]; 202extern const struct spi_device_id spi_nor_ids[];
205 203
206/**
207 * spi_nor_match_id() - find the spi_device_id by the name
208 * @name: the name of the spi_device_id
209 *
210 * The drivers use this function to find the spi_device_id
211 * specified by the @name.
212 *
213 * Return: returns the right spi_device_id pointer on success,
214 * and returns NULL on failure.
215 */
216const struct spi_device_id *spi_nor_match_id(char *name);
217
218#endif 204#endif