linux-kernel - [PATCH v1 0/2] Add pinctrl_pm_select_init

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Message-ID: <20250813081139.93201-1-christian.bruel@foss.st.com>
Date: Wed, 13 Aug 2025 10:11:37 +0200
From: Christian Bruel <christian.bruel@...s.st.com>
To: <linus.walleij@...aro.org>, <corbet@....net>, <bhelgaas@...gle.com>,
        <mani@...nel.org>
CC: <linux-gpio@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Christian Bruel <christian.bruel@...s.st.com>
Subject: [PATCH v1 0/2] Add pinctrl_pm_select_init_state helper function

Some platforms need to set the pinctrl to an initial state during
pm_resume, just like during probe. To achieve this, the missing function
pinctrl_pm_select_init_state() is added to the list of already existing
pinctrl PM helper functions.

This allows a driver to use the pinctrl init and default states in the
pm_runtime platform resume handlers, just as in probe.

Additionally the missing documentation describing these pinctrl standard
states used during probe has been added.

This fixes a build issue for the STM32MP25 PCIe staged in the pcie tree,
id 5a972a01e24b

Changes in v1:
   - Add missing information about PM helper functions.

Christian Bruel (2):
  Documentation: pinctrl: Describe PM helper functions for standard
    states.
  pinctrl: Add pinctrl_pm_select_init_state helper function

 Documentation/driver-api/pin-control.rst | 58 ++++++++++++++++++++++--
 drivers/pinctrl/core.c                   | 13 ++++++
 include/linux/pinctrl/consumer.h         | 10 ++++
 3 files changed, 78 insertions(+), 3 deletions(-)

-- 
2.34.1