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Mon, 2 Feb 2026 09:56:38 -0500 From: Antoniu Miclaus To: Linus Walleij , Jonathan Cameron , Lars-Peter Clausen , , CC: Antoniu Miclaus Subject: [PATCH v2 2/2] iio: gyro: mpu3050-core: use pm_runtime_resume_and_get() Date: Mon, 2 Feb 2026 16:56:27 +0200 Message-ID: <3edc89e901fd9d55c5355c4ec007636b1c8d6801.1770039759.git.antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjAyMDExNyBTYWx0ZWRfX1yW6ghcsCqVn rfrHXPRbMV3CzRABulqOJit9xkCmlI24LKjjVfu7vnQkvaDYhfcZlMvPSvwG1ZO8s3zq8DgCIIe TELCF5QaeUW3ns6f3lqxyLJ+GKEYkHF8D/jIAYZqhXRLlWtgIm2oWJRLnOKhAw6jm+R8TQ3oVnM RVLe4oUsxooopBcFgfe/WovzZ5v6yrD+MbyPtCqbo3W6USvTQziEl7QoNsX0D+oQhrI8re0n+Vz DuTBHyl3tmPz78ZhWbCUXNpfYog/cj6K8O9VRwgyjudSIlMc5nGgcwXWrj9hQlXFb8uGZaD8WBm NUsnjDzBewA/XblTSjU/wAE9N43o7peB2zLfPdkDRiHvVK9nrlt9oyEjLCUEkG/gvitEKOVPdQp gGCY5pXoDY3Kz520vvFLG+g8OoY/lJKmt9YeAl9vS/8DCrGebwvg/HQ3TdPwdiJx2Vn7kUTvo3o KcYlPrXEt/aPPfYy/ZA== X-Proofpoint-ORIG-GUID: ApkY0jtJJuldxzIK8mHZ8pPZWEuue9xW X-Authority-Analysis: v=2.4 cv=QptTHFyd c=1 sm=1 tr=0 ts=6980bb2d cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22 a=gAnH3GRIAAAA:8 a=B_UmCIpZy9mFkB8-czMA:9 X-Proofpoint-GUID: ApkY0jtJJuldxzIK8mHZ8pPZWEuue9xW X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-02_04,2026-01-30_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 adultscore=0 phishscore=0 bulkscore=0 suspectscore=0 malwarescore=0 lowpriorityscore=0 clxscore=1015 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602020117 Content-Type: text/plain; charset="utf-8" Replace pm_runtime_get_sync() with pm_runtime_resume_and_get() in mpu3050_read_raw() and mpu3050_buffer_preenable(). Unlike pm_runtime_get_sync(), the usage count is not incremented on error. In preenable, call pm_runtime_put_autosuspend() if set_8khz_samplerate() fails since postdisable won't be called on preenable failure. Signed-off-by: Antoniu Miclaus Reviewed-by: Linus Walleij --- drivers/iio/gyro/mpu3050-core.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-cor= e.c index ee2fcd20545d..1cc421eb4782 100644 --- a/drivers/iio/gyro/mpu3050-core.c +++ b/drivers/iio/gyro/mpu3050-core.c @@ -322,7 +322,9 @@ static int mpu3050_read_raw(struct iio_dev *indio_dev, } case IIO_CHAN_INFO_RAW: /* Resume device */ - pm_runtime_get_sync(mpu3050->dev); + ret =3D pm_runtime_resume_and_get(mpu3050->dev); + if (ret) + return ret; mutex_lock(&mpu3050->lock); =20 ret =3D mpu3050_set_8khz_samplerate(mpu3050); @@ -647,12 +649,19 @@ static irqreturn_t mpu3050_trigger_handler(int irq, v= oid *p) static int mpu3050_buffer_preenable(struct iio_dev *indio_dev) { struct mpu3050 *mpu3050 =3D iio_priv(indio_dev); + int ret; =20 - pm_runtime_get_sync(mpu3050->dev); + ret =3D pm_runtime_resume_and_get(mpu3050->dev); + if (ret) + return ret; =20 /* Unless we have OUR trigger active, run at full speed */ - if (!mpu3050->hw_irq_trigger) - return mpu3050_set_8khz_samplerate(mpu3050); + if (!mpu3050->hw_irq_trigger) { + ret =3D mpu3050_set_8khz_samplerate(mpu3050); + if (ret) + pm_runtime_put_autosuspend(mpu3050->dev); + return ret; + } =20 return 0; } --=20 2.43.0