Commit 961965c4 authored by Miquel Raynal's avatar Miquel Raynal
Browse files

mtd: rawnand: Add a helper to clarify the interface configuration 



Name it nand_interface_is_sdr() which will make even more sense when
nand_interface_is_nvddr() will be introduced.

Use it when relevant.

Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210505213750.257417-2-miquel.raynal@bootlin.com
parent fd0d8d85

drivers/mtd/nand/raw/atmel/nand-controller.c

+1 −1
Original line number Diff line number Diff line
@@ -1246,7 +1246,7 @@ static int atmel_smc_nand_prepare_smcconf(struct atmel_nand *nand, 
	nc = to_nand_controller(nand->base.controller);



	/* DDR interface not supported. */

	if (conf->type != NAND_SDR_IFACE)

	if (!nand_interface_is_sdr(conf))

		return -ENOTSUPP;



	/*

include/linux/mtd/rawnand.h

+10 −1
Original line number Diff line number Diff line
@@ -496,6 +496,15 @@ struct nand_interface_config { 
	} timings;

};



/**

 * nand_interface_is_sdr - get the interface type

 * @conf:	The data interface

 */

static bool nand_interface_is_sdr(const struct nand_interface_config *conf)

{

	return conf->type == NAND_SDR_IFACE;

}



/**

 * nand_get_sdr_timings - get SDR timing from data interface

 * @conf:	The data interface
@@ -503,7 +512,7 @@ struct nand_interface_config { 
static inline const struct nand_sdr_timings *

nand_get_sdr_timings(const struct nand_interface_config *conf)

{

	if (conf->type != NAND_SDR_IFACE)

	if (!nand_interface_is_sdr(conf))

		return ERR_PTR(-EINVAL);



	return &conf->timings.sdr;