From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4B7F51C5D7D for ; Mon, 20 Oct 2025 13:04:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760965481; cv=none; b=UfWzkQj3hzBdFzAhPu7gNvzzsKJRAH6AtPcihfaiON3cbqHOf1YVhWGctLF4fVLgdq4+IzoXDlhxtdY3mGqQU+uuMSmLE0XLts7zl8ZEZjeLa0xLDumioumESVAKadlzaSTr1oe0hdlmrSf3Bq3DFEtmQv7xWtFahGNpdR161dE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760965481; c=relaxed/simple; bh=wNjBp/mverybAZ5vsQ0A3OK9SWTCgbViqKTU5ryONYU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Bin7OkLq0dNbvMVpOuhptHQc4+PrZj3CflRR9Id+62pI8CahiVj9miTp7SOCIE3yImaZXd6hAZiwpdSjKlJEkGYNyTDHyj9fhImHJJpfvk/fB3iKzuZIOWovTQ0WgwnVDH/4FJyAqQ6+K4qBHK+QZAFP/4RwlxfAy7dse/irFJk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=R30FtvKl; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="R30FtvKl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3FAB1C116C6; Mon, 20 Oct 2025 13:04:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760965480; bh=wNjBp/mverybAZ5vsQ0A3OK9SWTCgbViqKTU5ryONYU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R30FtvKlAW+Tjn6NrU1pAAdEE7xZV0DVIsBwWzdIsHKgaQcnxMiu7Zf9j0lF5pm2m F/GbuzvWI/uWU6UqeDD/wvaK30WviDe9gEwPMHiQ8F8R9vFV/VqVVC28IuC3EzI6Us HJt9P5j1xV8sd6k4GKAhjaogw5PDSxFkGBZA7oCu1AoKSFCoYhlOOcZ1MYhgo0oqrW BHDLpwn/3Jvkwt7ECPEjHWpmzHMJJgY8tV0ggxiuLUC3J1K3zo33gTv1fGFAkREIYa OPQnDdm4VN6JjJqOBL1UlU4jINnlrIsGVpOzIkQk//sTmsJTmOjFVLI9MVVDST9KVb y7T36wxBQHH6Q== From: Sasha Levin To: stable@vger.kernel.org Cc: Sean Nyekjaer , Stable@vger.kernel.org, Jonathan Cameron , Sasha Levin Subject: [PATCH 5.15.y 2/2] iio: imu: inv_icm42600: Simplify pm_runtime setup Date: Mon, 20 Oct 2025 09:04:36 -0400 Message-ID: <20251020130436.1764668-2-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251020130436.1764668-1-sashal@kernel.org> References: <2025101603-foster-panning-5b9a@gregkh> <20251020130436.1764668-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Sean Nyekjaer [ Upstream commit 0792c1984a45ccd7a296d6b8cb78088bc99a212e ] Rework the power management in inv_icm42600_core_probe() to use devm_pm_runtime_set_active_enabled(), which simplifies the runtime PM setup by handling activation and enabling in one step. Remove the separate inv_icm42600_disable_pm callback, as it's no longer needed with the devm-managed approach. Using devm_pm_runtime_enable() also fixes the missing disable of autosuspend. Update inv_icm42600_disable_vddio_reg() to only disable the regulator if the device is not suspended i.e. powered-down, preventing unbalanced disables. Also remove redundant error msg on regulator_disable(), the regulator framework already emits an error message when regulator_disable() fails. This simplifies the PM setup and avoids manipulating the usage counter unnecessarily. Fixes: 31c24c1e93c3 ("iio: imu: inv_icm42600: add core of new inv_icm42600 driver") Signed-off-by: Sean Nyekjaer Link: https://patch.msgid.link/20250901-icm42pmreg-v3-1-ef1336246960@geanix.com Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin --- .../iio/imu/inv_icm42600/inv_icm42600_core.c | 24 ++++++------------- 1 file changed, 7 insertions(+), 17 deletions(-) diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c index f955c3d01fef9..f6ed2354163e4 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c @@ -550,20 +550,12 @@ static void inv_icm42600_disable_vdd_reg(void *_data) static void inv_icm42600_disable_vddio_reg(void *_data) { struct inv_icm42600_state *st = _data; - const struct device *dev = regmap_get_device(st->map); - int ret; - - ret = regulator_disable(st->vddio_supply); - if (ret) - dev_err(dev, "failed to disable vddio error %d\n", ret); -} + struct device *dev = regmap_get_device(st->map); -static void inv_icm42600_disable_pm(void *_data) -{ - struct device *dev = _data; + if (pm_runtime_status_suspended(dev)) + return; - pm_runtime_put_sync(dev); - pm_runtime_disable(dev); + regulator_disable(st->vddio_supply); } int inv_icm42600_core_probe(struct regmap *regmap, int chip, int irq, @@ -660,16 +652,14 @@ int inv_icm42600_core_probe(struct regmap *regmap, int chip, int irq, return ret; /* setup runtime power management */ - ret = pm_runtime_set_active(dev); + ret = devm_pm_runtime_set_active_enabled(dev); if (ret) return ret; - pm_runtime_get_noresume(dev); - pm_runtime_enable(dev); + pm_runtime_set_autosuspend_delay(dev, INV_ICM42600_SUSPEND_DELAY_MS); pm_runtime_use_autosuspend(dev); - pm_runtime_put(dev); - return devm_add_action_or_reset(dev, inv_icm42600_disable_pm, dev); + return ret; } EXPORT_SYMBOL_GPL(inv_icm42600_core_probe); -- 2.51.0