From nobody Thu Dec 18 09:45:33 2025 Received: from mail.subdimension.ro (nalicastle.subdimension.ro [172.105.74.154]) (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 25B8E28AB0B; Sun, 5 Oct 2025 13:13:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=172.105.74.154 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759669997; cv=none; b=kKE2RDULLWs85yx4OSl8JQ1/Bhuokd6asE3kvqTaJ6IU+Qe9NoOXR1W0CufgcplG7PWbTT5pNeNpCl2kQWvCWUX6/eZYfKVCWk4YnSK4dNDai1cFYEVUd2fyek3I2Ts4X91nP+sasx+GVlaGdWfYzz8g+dQiqyuVkvgLF2tp07I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759669997; c=relaxed/simple; bh=Hji0AFsKY2VMUvZORR8uShWfZuQyHGjgdcQlOTjd/X0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=EX34Syf6m3ocV/dDCurNkebsy7RL07PXE9g1yEAjRCDo9zLw2TRo1aaKNFnO1XyjBHZKOASt0+XY9CscX5v4N3z+tuSvy5lp4QY8RkcGGzbE3t5gr5eAKUwhvwXmD9FCQdoqB3tPY6v28p/GAK1/STn9LE4+AG4kAHJBMv2N38c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=subdimension.ro; spf=pass smtp.mailfrom=subdimension.ro; dkim=pass (2048-bit key) header.d=subdimension.ro header.i=@subdimension.ro header.b=Dw8Naqmq; arc=none smtp.client-ip=172.105.74.154 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=subdimension.ro Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=subdimension.ro Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=subdimension.ro header.i=@subdimension.ro header.b="Dw8Naqmq" Received: from [10.212.0.13] (unknown [IPv6:2a02:2f0e:3e0c:5b00:e2d5:5eff:fed9:f1c4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mail.subdimension.ro (Postfix) with ESMTPSA id 268DC173BF8; Sun, 05 Oct 2025 16:13:06 +0300 (EEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=subdimension.ro; s=mail; t=1759669986; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=RZCd1LuoKLbW/Yf0spyzgrKJD68T+psOsCJqcg637YA=; b=Dw8NaqmqYjpvbQqFesznwq1jEcTiGtFEYM1AWwmuJ37SC7eA9ryvwIGKkrmB/i28O5cAn7 xEOrGLgGYobKaVlBCbXPuFxqKjwoQSMHACjjChGA9cSyaeUXzHdNlxmlOuEORcpBojcLTx wkL+BL0+6l/tDhAbdWuDj+9I6iFqyVamBUeQWxAEncQzMtDw5PS7vP7C5P3cdmlfPIBLKA KmCTU4pQgxvTmXFgN2V8tDvQqDpXmrYOD3uewdrEivvaDJGZaUvP4+rO9nSXuJTJ+WJtbu n4bB/KwG5iKfULIBFG5sVutwSq+W/jWzbuVwuPAbeNHSt89RNDuGZx1C2VvVyQ== From: Petre Rodan Date: Sun, 05 Oct 2025 16:12:25 +0300 Subject: [PATCH v4 16/19] iio: accel: bma220: add interrupt trigger Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251005-b4-bma220_improvements-v4-16-0f449ba31585@subdimension.ro> References: <20251005-b4-bma220_improvements-v4-0-0f449ba31585@subdimension.ro> In-Reply-To: <20251005-b4-bma220_improvements-v4-0-0f449ba31585@subdimension.ro> To: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Jonathan Cameron , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=3564; i=petre.rodan@subdimension.ro; h=from:subject:message-id; bh=Hji0AFsKY2VMUvZORR8uShWfZuQyHGjgdcQlOTjd/X0=; b=LS0tLS1CRUdJTiBQR1AgTUVTU0FHRS0tLS0tCgpvd0o0bkFGdEFwTDlrQTBEQUFvQmRDc25wM k02U1dNQnl5WmlBR2ppYnRXMUNKTURKSmQzejMvVG9QcXJ6RW1vCmhlSFI0WGdTOE14THVaalQy azMzRklrQ013UUFBUW9BSFJZaEJCb2ltQncrRGJ4UXBFNmlkM1FySjZkak9rbGoKQlFKbzRtN1Z BQW9KRUhRcko2ZGpPa2xqU2lvUC8xVVoxYyttUUREM3prMENnODlkdi9kTEtDQmFBYWdCZm9QMQ pQd1NUeHk5akJXVUllVURlaVd6Y2RqNHpTSGtKL2dFa2dBMTF0MDh1M0RrYjlUaTlLUkhCVGF4S nlidkdQUWYzCkpocEJnYTlQM2JGbFM3d2U3ZDBVRFhYajREY2dGSldoZk95UkxXWE5iN2VQcmVY ek9lR0FaVklMU1BqRXc2MGEKZVI4OERsbkVDcmpTL2h4bGhsUkRYck5RdE1jclRFYWNkeWMrcHB iSzVrbHFaQVduYlpnVUFyaTBuc1ozRHIycgpNdGx0ODhBa3lVMmJtTSt4VDc5ckE1bkJ6M3ZHWT JiRTB4aEtybk9WSmVYVWp5Vkx4WVZwTmJsRStlcVZ1OThiCkVhM1RsS1ZaWTQvMmdnVTNvNzE5c ExURGx2NHMzRDUwRk45dTJWRVUwM1hFR2x6K0pobGd3VUhLR2J2N2dmcUkKblR5V0NNV3VpR2cx NU95YU8yWmpzakQ3V2Y2bHhWVFQrNGhPUytpUkJJZGx0aFQ4Nno2aHlYNVhuQXFsKzFYUgpOMDg vN1dsMjlhS3RmMXFYSzdRVEppM09qN0lSZHBSY1lVNGt4MzdLdjlmOTJmcEZqd3B3ZVg2RUZMMX BVUDJuCjdObXREMjBHcXFmU2xheXVrejladUtHQ2p5Mzl6cnpnZ0VGMXZWeHBwcndiNk9DNWNXS VBDemJuZFlKQkhzMnkKYnJnS1JlY0tSWjBvZTJvcWxQZG9YMUd1NUt3UW1pRUdwSXRWZ1Z1WVFn WVRGck9lcjVxL05BcElBSWVjalBFaApacnAxN3VtSDBpaVk1MUVMY1ZjbWxkMmVxQkFNb2cxOTR lSXFseFAydDFPVDRSRllSaFBFTTdEaUVvRjBsOWg0CmIxT09rbVQ5WUhRbkRBPT0KPVh5S3EKLS 0tLS1FTkQgUEdQIE1FU1NBR0UtLS0tLQo= X-Developer-Key: i=petre.rodan@subdimension.ro; a=openpgp; fpr=D80A7FC176151935EC3E5FA9CF269999844E7F30 Add interrupt trigger. Signed-off-by: Petre Rodan --- v1->v2 no change, just patch split v2->v3 replace regmap_bulk_read with regmap_read (Jonathan) (I just realized BMA220_REG_IF0 is never used, even by future event patches) v4 fix compilation err --- drivers/iio/accel/bma220_core.c | 58 +++++++++++++++++++++++++++++++++++++= ++++ 1 file changed, 58 insertions(+) diff --git a/drivers/iio/accel/bma220_core.c b/drivers/iio/accel/bma220_cor= e.c index a957751be40c63c25963283be813db97f73bf004..8f0cbd0aacb92a21afc57aaa350= 547d0c767d4b6 100644 --- a/drivers/iio/accel/bma220_core.c +++ b/drivers/iio/accel/bma220_core.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include =20 @@ -123,6 +124,7 @@ struct bma220_data { struct regmap *regmap; struct mutex lock; u8 range_idx; + struct iio_trigger *trig; struct { s8 chans[3]; /* Ensure timestamp is naturally aligned. */ @@ -191,6 +193,22 @@ const struct regmap_config bma220_i2c_regmap_config = =3D { }; EXPORT_SYMBOL_NS_GPL(bma220_i2c_regmap_config, "IIO_BOSCH_BMA220"); =20 +static int bma220_data_rdy_trigger_set_state(struct iio_trigger *trig, + bool state) +{ + struct iio_dev *indio_dev =3D iio_trigger_get_drvdata(trig); + struct bma220_data *data =3D iio_priv(indio_dev); + + return regmap_update_bits(data->regmap, BMA220_REG_IE0, + BMA220_INT_EN_DRDY_MSK, + FIELD_PREP(BMA220_INT_EN_DRDY_MSK, state)); +} + +static const struct iio_trigger_ops bma220_trigger_ops =3D { + .set_trigger_state =3D &bma220_data_rdy_trigger_set_state, + .validate_device =3D &iio_trigger_validate_own_device, +}; + static irqreturn_t bma220_trigger_handler(int irq, void *p) { int ret; @@ -413,6 +431,23 @@ static void bma220_deinit(void *data_ptr) ERR_PTR(ret)); } =20 +static irqreturn_t bma220_irq_handler(int irq, void *private) +{ + struct iio_dev *indio_dev =3D private; + struct bma220_data *data =3D iio_priv(indio_dev); + int ret; + unsigned int bma220_reg_if1; + + ret =3D regmap_read(data->regmap, BMA220_REG_IF1, &bma220_reg_if1); + if (ret) + return IRQ_NONE; + + if (FIELD_GET(BMA220_IF_DRDY, bma220_reg_if1)) + iio_trigger_poll_nested(data->trig); + + return IRQ_HANDLED; +} + int bma220_common_probe(struct device *dev, struct regmap *regmap, int irq) { int ret; @@ -441,6 +476,29 @@ int bma220_common_probe(struct device *dev, struct reg= map *regmap, int irq) indio_dev->num_channels =3D ARRAY_SIZE(bma220_channels); indio_dev->available_scan_masks =3D bma220_accel_scan_masks; =20 + if (irq > 0) { + data->trig =3D devm_iio_trigger_alloc(dev, "%s-dev%d", + indio_dev->name, + iio_device_id(indio_dev)); + if (!data->trig) + return -ENOMEM; + + data->trig->ops =3D &bma220_trigger_ops; + iio_trigger_set_drvdata(data->trig, indio_dev); + + ret =3D devm_iio_trigger_register(dev, data->trig); + if (ret) + return dev_err_probe(dev, ret, + "iio trigger register fail\n"); + indio_dev->trig =3D iio_trigger_get(data->trig); + ret =3D devm_request_threaded_irq(dev, irq, NULL, + &bma220_irq_handler, IRQF_ONESHOT, + indio_dev->name, indio_dev); + if (ret) + return dev_err_probe(dev, ret, + "request irq %d failed\n", irq); + } + ret =3D devm_add_action_or_reset(dev, bma220_deinit, data); if (ret) return ret; --=20 2.49.1