Commit 2efe1642 authored by Mark Brown's avatar Mark Brown
Browse files

regmap: Skip precious registers when dumping registers via debugfs 



Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 31244e39

drivers/base/regmap/internal.h

+1 −0
Original line number Diff line number Diff line
@@ -45,6 +45,7 @@ struct regmap { 
	bool (*writeable_reg)(struct device *dev, unsigned int reg);

	bool (*readable_reg)(struct device *dev, unsigned int reg);

	bool (*volatile_reg)(struct device *dev, unsigned int reg);

	bool (*precious_reg)(struct device *dev, unsigned int reg);

};



#ifdef CONFIG_DEBUG_FS

drivers/base/regmap/regmap-debugfs.c

+4 −0
Original line number Diff line number Diff line
@@ -56,6 +56,10 @@ static ssize_t regmap_map_read_file(struct file *file, char __user *user_buf, 
		    !map->readable_reg(map->dev, i))

			continue;



		if (map->precious_reg &&

		    map->precious_reg(map->dev, i))

			continue;



		/* If we're in the region the user is trying to read */

		if (p >= *ppos) {

			/* ...but not beyond it */

drivers/base/regmap/regmap.c

+1 −0
Original line number Diff line number Diff line
@@ -101,6 +101,7 @@ struct regmap *regmap_init(struct device *dev, 
	map->writeable_reg = config->writeable_reg;

	map->readable_reg = config->readable_reg;

	map->volatile_reg = config->volatile_reg;

	map->precious_reg = config->precious_reg;



	switch (config->reg_bits) {

	case 4: