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 678522D7DDA; Mon, 27 Oct 2025 19:15:36 +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=1761592536; cv=none; b=H3t50lxoMxmrdDQ6bnb5wCm/Ut1iQKUr7YvoVuqNtGm2DGuv7ikWjoLXTvIEprTwS2X/DK5BFjK1uESHG7TPNn5QeUCvYpw/wxePOR6s8cLrzYVM3aewbZbTuphKLJsiZtJIXtM5YHlYlbYVZHbjkiPOSVPygv+ajHvSJ0NClts= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761592536; c=relaxed/simple; bh=GZOLv90Z205qYfQvLdzeKByGLLhJ/2lvwKv+hpbVntI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gLj8Igmg4Cp65ts0bheNtNBfGVvc51xN6JLpNFsuvlcKVwkKEYqlSpKoP8GVC9IIlYRj81EOmujRNP+HXqXAT8FaB/3mLwcoE+UUBRiVyh+oaln2p5MAq22MM/DjQPOCXGcQZrnxiO09XNpos1jCPdlkQ00WEayMKjYYwaLbfH4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=nNTcOj2P; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="nNTcOj2P" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E8CB4C4CEF1; Mon, 27 Oct 2025 19:15:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1761592536; bh=GZOLv90Z205qYfQvLdzeKByGLLhJ/2lvwKv+hpbVntI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nNTcOj2Pls38UomEiTLY+Kv1b9DZp4RSrdpzJRHIp5Xsou4NCze1O6pTwbXjUunaK na9rywvzPTOrrnoZ5MQMk4yqLcQB3xInBMd/No7nEzVfQcPFRF3redY7FBEhLUdhPZ 4TXwqlwHElESt+wEuvmx6txPfJHTp50L6rGDc0RE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sean Nyekjaer , Stable@vger.kernel.org, Jonathan Cameron , Sasha Levin Subject: [PATCH 6.1 122/157] iio: imu: inv_icm42600: Simplify pm_runtime setup Date: Mon, 27 Oct 2025 19:36:23 +0100 Message-ID: <20251027183504.520271158@linuxfoundation.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251027183501.227243846@linuxfoundation.org> References: <20251027183501.227243846@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ 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 Signed-off-by: Greg Kroah-Hartman --- drivers/iio/imu/inv_icm42600/inv_icm42600_core.c | 24 ++++++----------------- 1 file changed, 7 insertions(+), 17 deletions(-) --- 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 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 regma 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);