linux-kernel - [RFC PATCH 0/3] regmap: Implement regmap_multi_reg

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240710015622.1960522-1-linux@roeck-us.net>
Date: Tue,  9 Jul 2024 18:56:19 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Mark Brown <broonie@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J . Wysocki" <rafael@...nel.org>,
	Jean Delvare <jdelvare@...e.com>,
	linux-hwmon@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Guenter Roeck <linux@...ck-us.net>
Subject: [RFC PATCH 0/3] regmap: Implement regmap_multi_reg_read()

regmap_multi_reg_read() is similar to regmap_bilk_read() but reads from
an array of non-sequential registers. It is helpful if multiple non-
sequential registers need to be read in a single operation which would
otherwise have to be mutex protected.

The name of the new function was chosen to match the existing function
regmap_multi_reg_write().

The first patch of the series introduces the new function. The following
two patches provide examples for its use.

----------------------------------------------------------------
Guenter Roeck (3):
      regmap: Implement regmap_multi_reg_read()
      hwmon: (adt7470) Use multi-byte regmap operations
      hwmon: (tmp401) Use multi-byte regmap operations

 drivers/base/regmap/regmap.c | 103 ++++++++++++++++++++++++++++---------------
 drivers/hwmon/adt7470.c      |  22 +++------
 drivers/hwmon/tmp401.c       |  19 +++-----
 include/linux/regmap.h       |   2 +
 4 files changed, 84 insertions(+), 62 deletions(-)