linux-kernel - [PATCH v1 0/6] gpio: mlxbf2: Introduce proper interrupt handling

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Message-Id: <20210816115953.72533-1-andriy.shevchenko@linux.intel.com>
Date:   Mon, 16 Aug 2021 14:59:47 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        David Thompson <davthompson@...dia.com>,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        netdev@...r.kernel.org, linux-acpi@...r.kernel.org
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Asmaa Mnebhi <asmaa@...dia.com>,
        Liming Sun <limings@...dia.com>
Subject: [PATCH v1 0/6] gpio: mlxbf2: Introduce proper interrupt handling

This is just a WIP / TODO series based on the discussion [1].
I hope nVidia will finish it and fix the initial problem sooner than later.

Bart, Linus, First 4 patches may be directly applied to the tree (they are
at least compile-tested, but I believe they won't change any functionality.

Patch 5 is some stubs that should have been done in the driver.
Patch 6 is follow up removal of custom GPIO IRQ handling from
Mellanox GBE driver. Both of them are quite far from finishing,
but it's a start for nVidia to develop and test proper solution.

In any case, I will probably sent end this week the ACPI IRQ abuse
part from the GBE driver (I won't touch OF path).

ARs for nVidia:
0) review this series;
1) properly develop GPIO driver;
2) replace custom code with correct one;
3) send the work for review to GPIO and ACPI maintainers (basically list
   of this series).

On my side I will help you if you have any questions regarding to GPIO
and ACPI.

Andy Shevchenko (6):
  gpio: mlxbf2: Convert to device PM ops
  gpio: mlxbf2: Drop wrong use of ACPI_PTR()
  gpio: mlxbf2: Use devm_platform_ioremap_resource()
  gpio: mlxbf2: Use DEFINE_RES_MEM_NAMED() helper macro
  TODO: gpio: mlxbf2: Introduce IRQ support
  TODO: net: mellanox: mlxbf_gige: Replace non-standard interrupt
    handling

 drivers/gpio/gpio-mlxbf2.c                    | 151 ++++++++++---
 .../mellanox/mlxbf_gige/mlxbf_gige_gpio.c     | 212 ------------------
 2 files changed, 120 insertions(+), 243 deletions(-)
 delete mode 100644 drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_gpio.c

-- 
2.30.2