From nobody Thu Oct 2 23:49:45 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 5817B30F935; Wed, 10 Sep 2025 07:58:13 +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=1757491095; cv=none; b=RuEJz0gmRpl2tWWrIejdp1Q83nxUlkV6R4nI3e4VNHXAFDxgu207vRrJWrhzTh99aIxHj1td7DbTloVcA74do73kWTXMntGvfgUK1dc0BEiYX6VQg3KMHqs7Pj4C42qd9rF+rUtPS+67rMhpZos6OqG/S4PPVrmdUVqve2S6R/8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757491095; c=relaxed/simple; bh=XWzHd7nlDw82TjC+TEc4SoFNh/CzczQGkWthXmS4GRA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=AbPRh1Xfkz3yjbqg1/wJWru/SDRvuXEZJmP8W4gnfe6fXYOVhkNu/NKgjo1r56oXUV5C2ohSoCQXRX+G+j/VPIvDnil017xEaMW6gArmpTAVqaJ4WJAH8LMiJ9rOWEnPfqTgwIzgjZKwaUXdduaSS6y6UdejmesYd0suWfDNnMA= 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=afQ10EKL; 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="afQ10EKL" Received: from [10.212.0.13] (unknown [IPv6:2a02:2f0e:3503:4a00: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 387F4173BF3; Wed, 10 Sep 2025 10:58:06 +0300 (EEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=subdimension.ro; s=mail; t=1757491086; 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=n+xOIVvEek2iwN6DRKMJ3IrqnIPefm0SKjzAvT3YQtI=; b=afQ10EKLIrbQoXdGP8eJwIEwt4ADAufVpgE4yhXEvnjkDg/6KlXq1H3Bk0HXCxRIT7SKyf 7Ccov/4O65vpuDWiTu8StsDnFct37rwbIH7zQjALKoGHlimEcnsQnlYgtrWDKQkK63iu7r 3OkM34bhma1Su/C7Wy5SNu5nrothBN8HMDbqunzFL58cIOmeWKmCHCdrOsnr6X1SJCy4Ni YuLWPRJrF8XVdpY75OarkNkJaae4dSeJZ9nKG5wNz+he5SHrRrteuX784YBB7B4cM+8Q+s RW+LE1yN/KoztTho4d5MhFKktX72OV1XTRBWSTNKMMJKt7NNgbHy08EkjtonWA== From: Petre Rodan Date: Wed, 10 Sep 2025 10:57:16 +0300 Subject: [PATCH v2 11/14] 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: <20250910-bma220_improvements-v2-11-e23f4f2b9745@subdimension.ro> References: <20250910-bma220_improvements-v2-0-e23f4f2b9745@subdimension.ro> In-Reply-To: <20250910-bma220_improvements-v2-0-e23f4f2b9745@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, Petre Rodan X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=3509; i=petre.rodan@subdimension.ro; h=from:subject:message-id; bh=XWzHd7nlDw82TjC+TEc4SoFNh/CzczQGkWthXmS4GRA=; b=owEBbQKS/ZANAwAIAc8mmZmETn8wAcsmYgBowS+HY6SKQtDFmzn3zP0STv+SpmHSSxoregIUb d780z93iFqJAjMEAAEIAB0WIQTYCn/BdhUZNew+X6nPJpmZhE5/MAUCaMEvhwAKCRDPJpmZhE5/ MN8fEADX6Mt7G9EqaFrdavXIo494ADbqyT8e86hdrHs0v/vURULncZIZr4HdQZ34EQcvrLh/+6g cC76rlCjmSGyyGmAasJgyfPc9zFfBa8wHx4WQNlQj7Vg5vj2gZ2SzIVdUrPfr2UGf0v+xP1ycmQ vdiI/5nVs9SdEDgRqOqz9Ho++0dddzDaluo6rigpkyTWKtguPMRWLlQ2atoNclXSmzX5uVgXchF D8e1iV8x9S7qXU+aBoqg7Y158GPhPBa1H9CdRZ1BuhLs9k1NUAvsnxgEPi/PaKccxrJCGRbrUKR KSmIiKKt1qR88dnmofWx7dejfn3IDC1EQyUYwGaf92cisj31a/IUyJTY/QwJjfAjcy4T0A4PAt/ gZdgIpuGAAFvveYF8daxHe7TJA/vK7MQWT+IOfI4UHRgAmbtJbUAnRQtBpJU42s6aCibJ5LQXk+ oDLV0nMRpvGOGVkioRPe3Yps0MgWezs+AQIh4H44ks56i5hjWpdzlHsrXnnf3TS7S7O9d2dQ2Uz Vgs5njuUxGURPClMtDpUEWNPzZhA+1lb43Bc7+SuZ11HhLhjXwc0G5qcmkJ6dKk9keV6s2Qa1Hp ypdEpAhfu7crH92FJwEUuhfgCXFxA78wHFUD+HXTKXXrAowmhh5vmgGvQ8vvmO5rr/Us7y/8H5a i2flgDGn275kW1A== X-Developer-Key: i=petre.rodan@subdimension.ro; a=openpgp; fpr=D80A7FC176151935EC3E5FA9CF269999844E7F30 Add interrupt trigger. Signed-off-by: Petre Rodan --- no change, just patch split --- drivers/iio/accel/bma220_core.c | 62 +++++++++++++++++++++++++++++++++++++= ++++ 1 file changed, 62 insertions(+) diff --git a/drivers/iio/accel/bma220_core.c b/drivers/iio/accel/bma220_cor= e.c index b619f5a0bf713b4d386a5d4fc1d919e144798f02..69bfd7f9f2b35e67835c6e1e41e= 02258e6741e7b 100644 --- a/drivers/iio/accel/bma220_core.c +++ b/drivers/iio/accel/bma220_core.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include =20 @@ -126,6 +127,7 @@ 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. */ @@ -194,6 +196,23 @@ 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); + + guard(mutex)(&data->lock); + 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; @@ -418,6 +437,25 @@ 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 rv; + u8 bma220_reg_if[2]; + + guard(mutex)(&data->lock); + rv =3D regmap_bulk_read(data->regmap, BMA220_REG_IF0, bma220_reg_if, + sizeof(bma220_reg_if)); + if (rv) + return IRQ_NONE; + + if (FIELD_GET(BMA220_IF_DRDY, bma220_reg_if[1])) + iio_trigger_poll_nested(data->trig); + + return IRQ_HANDLED; +} + int bma220_common_probe(struct device *dev, struct regmap *regmap, int irq) { int ret; @@ -447,6 +485,30 @@ 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_TRIGGER_RISING | 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