Commit 12a5146b authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'regmap-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap 

Pull regmap updates from Mark Brown:
 "This is a relatively busy release for regmap, though not busy in the
  grand scheme of things, with the addition of support for I3C from
  Vitor Soares and a few small fixes and cleanups"

* tag 'regmap-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: select CONFIG_REGMAP while REGMAP_SCCB is set
  regmap: lzo: Switch to bitmap_zalloc()
  regmap: fix bulk writes on paged registers
  regmap: add i3c bus support
  regmap: debugfs: Fix memory leak in regmap_debugfs_init
parents 2ec98f56 aaccf386

drivers/base/regmap/Kconfig

+5 −1
Original line number Diff line number Diff line
@@ -4,7 +4,7 @@ 
# subsystems should select the appropriate symbols.



config REGMAP

	default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)

	default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ || REGMAP_SCCB || REGMAP_I3C)

	select IRQ_DOMAIN if REGMAP_IRQ

	bool
@@ -49,3 +49,7 @@ config REGMAP_SOUNDWIRE 
config REGMAP_SCCB

	tristate

	depends on I2C



config REGMAP_I3C

	tristate

	depends on I3C

drivers/base/regmap/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -16,3 +16,4 @@ obj-$(CONFIG_REGMAP_IRQ) += regmap-irq.o 
obj-$(CONFIG_REGMAP_W1) += regmap-w1.o

obj-$(CONFIG_REGMAP_SOUNDWIRE) += regmap-sdw.o

obj-$(CONFIG_REGMAP_SCCB) += regmap-sccb.o

obj-$(CONFIG_REGMAP_I3C) += regmap-i3c.o

drivers/base/regmap/regcache-lzo.c

+3 −5
Original line number Diff line number Diff line
@@ -148,20 +148,18 @@ static int regcache_lzo_init(struct regmap *map) 
	 * that register.

	 */

	bmp_size = map->num_reg_defaults_raw;

	sync_bmp = kmalloc_array(BITS_TO_LONGS(bmp_size), sizeof(long),

				 GFP_KERNEL);

	sync_bmp = bitmap_zalloc(bmp_size, GFP_KERNEL);

	if (!sync_bmp) {

		ret = -ENOMEM;

		goto err;

	}

	bitmap_zero(sync_bmp, bmp_size);



	/* allocate the lzo blocks and initialize them */

	for (i = 0; i < blkcount; i++) {

		lzo_blocks[i] = kzalloc(sizeof **lzo_blocks,

					GFP_KERNEL);

		if (!lzo_blocks[i]) {

			kfree(sync_bmp);

			bitmap_free(sync_bmp);

			ret = -ENOMEM;

			goto err;

		}
@@ -213,7 +211,7 @@ static int regcache_lzo_exit(struct regmap *map) 
	 * only once.

	 */

	if (lzo_blocks[0])

		kfree(lzo_blocks[0]->sync_bmp);

		bitmap_free(lzo_blocks[0]->sync_bmp);

	for (i = 0; i < blkcount; i++) {

		if (lzo_blocks[i]) {

			kfree(lzo_blocks[i]->wmem);

drivers/base/regmap/regmap-debugfs.c

+2 −0
Original line number Diff line number Diff line
@@ -579,6 +579,8 @@ void regmap_debugfs_init(struct regmap *map, const char *name) 
	}



	if (!strcmp(name, "dummy")) {

		kfree(map->debugfs_name);



		map->debugfs_name = kasprintf(GFP_KERNEL, "dummy%d",

						dummy_index);

		name = map->debugfs_name;

drivers/base/regmap/regmap-i3c.c

0 → 100644
+60 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

// Copyright (c) 2018 Synopsys, Inc. and/or its affiliates.



#include <linux/regmap.h>

#include <linux/i3c/device.h>

#include <linux/i3c/master.h>

#include <linux/module.h>



static int regmap_i3c_write(void *context, const void *data, size_t count)

{

	struct device *dev = context;

	struct i3c_device *i3c = dev_to_i3cdev(dev);

	struct i3c_priv_xfer xfers[] = {

		{

			.rnw = false,

			.len = count,

			.data.out = data,

		},

	};



	return i3c_device_do_priv_xfers(i3c, xfers, 1);

}



static int regmap_i3c_read(void *context,

			   const void *reg, size_t reg_size,

			   void *val, size_t val_size)

{

	struct device *dev = context;

	struct i3c_device *i3c = dev_to_i3cdev(dev);

	struct i3c_priv_xfer xfers[2];



	xfers[0].rnw = false;

	xfers[0].len = reg_size;

	xfers[0].data.out = reg;



	xfers[1].rnw = true;

	xfers[1].len = val_size;

	xfers[1].data.in = val;



	return i3c_device_do_priv_xfers(i3c, xfers, 2);

}



static struct regmap_bus regmap_i3c = {

	.write = regmap_i3c_write,

	.read = regmap_i3c_read,

};



struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c,

				      const struct regmap_config *config,

				      struct lock_class_key *lock_key,

				      const char *lock_name)

{

	return __devm_regmap_init(&i3c->dev, &regmap_i3c, &i3c->dev, config,

				  lock_key, lock_name);

}

EXPORT_SYMBOL_GPL(__devm_regmap_init_i3c);



MODULE_AUTHOR("Vitor Soares <vitor.soares@synopsys.com>");

MODULE_DESCRIPTION("Regmap I3C Module");

MODULE_LICENSE("GPL v2");

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