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[142.198.109.43]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8cb8d108c41sm231416885a.42.2026.02.21.09.26.07 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Sat, 21 Feb 2026 09:26:09 -0800 (PST) From: Neel Bullywon To: jic23@kernel.org, dlechner@baylibre.com, nuno.sa@analog.com, andy@kernel.org Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Neel Bullywon Subject: [PATCH 1/2] iio: pressure: mpl115: add system suspend/resume support Date: Sat, 21 Feb 2026 12:26:00 -0500 Message-ID: <20260221172601.77818-1-neelb2403@gmail.com> X-Mailer: git-send-email 2.44.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The driver currently only implements runtime PM callbacks to control the shutdown GPIO, but lacks system suspend/resume support. This means the device may remain powered during system sleep, wasting energy. Add system sleep PM ops using pm_runtime_force_suspend() and pm_runtime_force_resume() to properly synchronize the runtime PM state across system suspend/resume cycles. This ensures the shutdown GPIO is asserted during system sleep when the device has a shutdown GPIO configured. Signed-off-by: Neel Bullywon --- drivers/iio/pressure/mpl115.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/iio/pressure/mpl115.c b/drivers/iio/pressure/mpl115.c index 830a5065c008..29794ce53bc6 100644 --- a/drivers/iio/pressure/mpl115.c +++ b/drivers/iio/pressure/mpl115.c @@ -244,8 +244,10 @@ static int mpl115_runtime_resume(struct device *dev) return 0; } -EXPORT_NS_RUNTIME_DEV_PM_OPS(mpl115_dev_pm_ops, mpl115_runtime_suspend, - mpl115_runtime_resume, NULL, IIO_MPL115); +EXPORT_NS_GPL_DEV_PM_OPS(mpl115_dev_pm_ops, IIO_MPL115) = { + SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume) + RUNTIME_PM_OPS(mpl115_runtime_suspend, mpl115_runtime_resume, NULL) +}; MODULE_AUTHOR("Peter Meerwald "); MODULE_DESCRIPTION("Freescale MPL115 pressure/temperature driver"); -- 2.44.0