linux-kernel - [PATCH 0/3] gpio: idio-16: Fix regmap initialization errors

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: <20251017-fix-gpio-idio-16-regmap-v1-0-a7c71080f740@kernel.org>
Date: Fri, 17 Oct 2025 09:58:00 +0900
From: William Breathitt Gray <wbg@...nel.org>
To: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>, 
 Linus Walleij <linus.walleij@...aro.org>
Cc: Michael Walle <mwalle@...nel.org>, 
 Ioana Ciornei <ioana.ciornei@....com>, 
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
 Mark Brown <broonie@...nel.org>, linux-gpio@...r.kernel.org, 
 linux-kernel@...r.kernel.org, William Breathitt Gray <wbg@...nel.org>, 
 Mark Cave-Ayland <mark.caveayland@...anix.com>, stable@...r.kernel.org
Subject: [PATCH 0/3] gpio: idio-16: Fix regmap initialization errors

The migration of IDIO-16 GPIO drivers to the regmap API resulted in some
regressions to the gpio-104-idio-16, gpio-pci-idio-16, and gpio-idio-16
modules. Specifically, the 104-idio-16 and pci-idio-16 GPIO drivers
utilize regmap caching and thus must set max_register for their
regmap_config, while gpio-idio-16 requires fixed_direction_output to
represent the fixed direction of the IDIO-16 GPIO lines. Fixes for these
regressions are provided by this series.

Link: https://lore.kernel.org/r/cover.1680618405.git.william.gray@linaro.org
Link: https://lore.kernel.org/r/9b0375fd-235f-4ee1-a7fa-daca296ef6bf@nutanix.com
Signed-off-by: William Breathitt Gray <wbg@...nel.org>
---
William Breathitt Gray (3):
      gpio: 104-idio-16: Define maximum valid register address offset
      gpio: pci-idio-16: Define maximum valid register address offset
      gpio: idio-16: Define fixed direction of the GPIO lines

 drivers/gpio/gpio-104-idio-16.c | 1 +
 drivers/gpio/gpio-idio-16.c     | 5 +++++
 drivers/gpio/gpio-pci-idio-16.c | 1 +
 3 files changed, 7 insertions(+)
---
base-commit: eba11116f39533d2e38cc5898014f2c95f32d23a
change-id: 20251017-fix-gpio-idio-16-regmap-1282cdc56a19

Best regards,
-- 
William Breathitt Gray <wbg@...nel.org>