linux-kernel - [PATCH v6 0/7] add support for another simatic board

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Message-ID: <20220825104422.14156-1-henning.schild@siemens.com>
Date:   Thu, 25 Aug 2022 12:44:15 +0200
From:   Henning Schild <henning.schild@...mens.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Pavel Machek <pavel@....cz>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Lee Jones <lee@...nel.org>, <linux-gpio@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-leds@...r.kernel.org>,
        <platform-driver-x86@...r.kernel.org>
CC:     Sheng-Yuan Huang <syhuang3@...oton.com>,
        Tasanakorn Phaipool <tasanakorn@...il.com>,
        <simon.guinot@...uanux.org>,
        Henning Schild <henning.schild@...mens.com>
Subject: [PATCH v6 0/7] add support for another simatic board

changes since v5:
  - adding patch to convert to pr_fmt
  - adding patch to prefix macros with "f7188x_"
  - rebased p1v4 to be p3v5 and added tag

changes since v4:
  - remove int case from a printk in p1
  - include tags into commit messages

changes since v3:
  - update Kconfig as well
  - drop chip names from comment in driver header
  - add manufacturer check for Fintek again, Nuvoton not possible
  - drop revision printing for Nuvoton
  - restructure defines again
  - add new model 427G

changes since v2: (p1 only)
  - rename macros that change behavior
  - use chip type not device id in the macros
  - reorder defines a bit

changes since v1:
  - remove unused define
  - fix bug where (base + 2) was used as second data bit
  - add macros for "inverted" and "single data bit"

The first two patches apply some style refactorings before actual
functional changes are made.

Later, This series enables a SuperIO GPIO driver to support a chip from
the vendor Nuvoton, the driver is for Fintek devices but those just are
very similar. And in watchdog and hwmon subsystems these SuperIO drivers
also share code and are sometimes called a family.

In another step the individual banks receive a label to tell them apart,
a step which potentially changes an interface to legacy users that might
rely on all banks having the same label, or an exact label. But since a
later patch wants to use GPIO_LOOKUP unique labels are needed and i
decided to assign them for all supported chips.

In a following patch the Simatic GPIO LED driver is extended to provide
LEDs in case that SuperIO GPIO driver can be loaded.

Last but not least the watchdog module of that same SuperIO gets loaded
on a best effort basis.

The very last patch enables a second model of that same board type.

Henning Schild (7):
  gpio-f7188x: switch over to using pr_fmt
  gpio-f7188x: add a prefix to macros to keep gpio namespace clean
  gpio-f7188x: Add GPIO support for Nuvoton NCT6116
  gpio-f7188x: use unique labels for banks/chips
  leds: simatic-ipc-leds-gpio: add new model 227G
  platform/x86: simatic-ipc: enable watchdog for 227G
  platform/x86: simatic-ipc: add new model 427G

 drivers/gpio/Kconfig                          |   3 +-
 drivers/gpio/gpio-f7188x.c                    | 275 +++++++++++-------
 drivers/leds/simple/simatic-ipc-leds-gpio.c   |  42 ++-
 drivers/platform/x86/simatic-ipc.c            |  10 +-
 .../platform_data/x86/simatic-ipc-base.h      |   1 +
 include/linux/platform_data/x86/simatic-ipc.h |   2 +
 6 files changed, 216 insertions(+), 117 deletions(-)

-- 
2.35.1