Commit bf977e3f authored by Huang Shijie's avatar Huang Shijie Committed by David Woodhouse
Browse files

mtd: add a new sys node to show the ecc step size 



Add a new sys node to show the ecc step size.
The application then can uses this node to get the ecc step
size.

Signed-off-by: default avatarHuang Shijie <b32955@freescale.com>
Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent c41a0582

drivers/mtd/mtdcore.c

+11 −0
Original line number Diff line number Diff line
@@ -285,6 +285,16 @@ static DEVICE_ATTR(bitflip_threshold, S_IRUGO | S_IWUSR, 
		   mtd_bitflip_threshold_show,

		   mtd_bitflip_threshold_store);



static ssize_t mtd_ecc_step_size_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct mtd_info *mtd = dev_get_drvdata(dev);



	return snprintf(buf, PAGE_SIZE, "%u\n", mtd->ecc_step_size);



}

static DEVICE_ATTR(ecc_step_size, S_IRUGO, mtd_ecc_step_size_show, NULL);



static struct attribute *mtd_attrs[] = {

	&dev_attr_type.attr,

	&dev_attr_flags.attr,
@@ -296,6 +306,7 @@ static struct attribute *mtd_attrs[] = { 
	&dev_attr_numeraseregions.attr,

	&dev_attr_name.attr,

	&dev_attr_ecc_strength.attr,

	&dev_attr_ecc_step_size.attr,

	&dev_attr_bitflip_threshold.attr,

	NULL,

};