linux-kernel - [PATCH 0/5] gpio: thunderx: Marvell GPIO changes.

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Message-ID: <20220427144620.9105-1-pmalgujar@marvell.com>
Date:   Wed, 27 Apr 2022 07:46:15 -0700
From:   Piyush Malgujar <pmalgujar@...vell.com>
To:     <linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
CC:     <linus.walleij@...aro.org>, <brgl@...ev.pl>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <rric@...nel.org>,
        <cchavva@...vell.com>, <wsadowski@...vell.com>,
        Piyush Malgujar <pmalgujar@...vell.com>
Subject: [PATCH 0/5] gpio: thunderx: Marvell GPIO changes.

This patch includes the following changes:

- Using irqsave/irqrestore spinlock variants to avoid any potential
  deadlock in case of GPIO as IRQ
- Introducing a new device tree option 'pin-cfg' which can be used to setup
  mode of one or several GPIO pins. It can be used to choose pin's
  function, filtes, polarity and direction.
- Extending PIN_SEL_MASK to cover for otx2 platform
- In case of level irq, the current handle is not unmasking the GPIO
  interrupt, so using handle_level_irq, which will allow next interrupt
  to be handled.

All the changes have been internally verified on Marvell otx2 platforms.

Piyush Malgujar (5):
  gpio: thunderx: avoid potential deadlock
  dt-bindings: gpio: gpio-thunderx: Describe pin-cfg option
  gpio: thunderx: Configure GPIO pins at probe
  gpio: thunderx: extend PIN_SEL_MASK to cover otx2 platform
  gpio: thunderx: change handler for level interrupt

 .../bindings/gpio/gpio-thunderx.txt           |  4 ++
 drivers/gpio/gpio-thunderx.c                  | 53 +++++++++++++++----
 2 files changed, 47 insertions(+), 10 deletions(-)

-- 
2.17.1