From nobody Thu Oct 2 18:08:29 2025 Received: from vs81.iboxed.net (vs10.datenmanufaktur-hosting.net [213.160.73.65]) (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 C23A92E11B8; Sun, 14 Sep 2025 19:35:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.160.73.65 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757878552; cv=none; b=NqEt7pV+6W/VbdxqcHxMK7wcnHEnZNvkFiONtWxY7Gu9rKBq7BalLVPqqagBv802OAvzJaHuDJ6RNKjasSYj+Pz+LqKKUXOHrw85Izxql8mJNvXLjBHVStG5jxPqVbv3ELDqFWEM7NzFLMr5QgkFo3ETs2nJcp+fTJsN2/krgqU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757878552; c=relaxed/simple; bh=wQiby7wRPkklNCARvA/jcIM2aN/AonZNYqQIMPKvH1c=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=TqSzHPfzNuLG2GWQ81GfjukecERciHLFueqhy8azhL/4u1rYN5tyEJaroOIhkRyyXlK9qHDK5wUDUKYiiqshpgV9DjnyBhuK5g7+zqxUICOEODk0gqR6RY4Lhv+k1wb6Ak7i9H70+idH4wfIamFYBO1OVNzxa16J0uao7BPWpkg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=blala.de; spf=pass smtp.mailfrom=blala.de; arc=none smtp.client-ip=213.160.73.65 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=blala.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=blala.de Received: from blala.de (localhost [127.0.0.1]) by vs81.iboxed.net (8.15.2/8.15.2/Debian-14~deb10u1) with ESMTP id 58EJbQuU010651; Sun, 14 Sep 2025 19:37:26 GMT Received: (from akurz@localhost) by blala.de (8.15.2/8.15.2/Submit) id 58EJbQEI010646; Sun, 14 Sep 2025 19:37:26 GMT From: Alexander Kurz To: Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Dmitry Torokhov , Dzmitry Sankouski , "Dr. David Alan Gilbert" , Heiko Stuebner , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , devicetree@vger.kernel.org, linux-input@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Alexander Kurz Subject: [PATCH v4 8/8] Input: mc13783-pwrbutton: add OF support Date: Sun, 14 Sep 2025 19:37:23 +0000 Message-Id: <20250914193723.10544-9-akurz@blala.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20250914193723.10544-1-akurz@blala.de> References: <20250914193723.10544-1-akurz@blala.de> 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 Content-Type: text/plain; charset="utf-8" Add OF support for the mc13783-pwrbutton so that it can be used with modern DT based systems. Signed-off-by: Alexander Kurz --- drivers/input/misc/mc13783-pwrbutton.c | 82 ++++++++++++++++++++++++-- 1 file changed, 76 insertions(+), 6 deletions(-) diff --git a/drivers/input/misc/mc13783-pwrbutton.c b/drivers/input/misc/mc= 13783-pwrbutton.c index 08618c59197f..46bef0af46ee 100644 --- a/drivers/input/misc/mc13783-pwrbutton.c +++ b/drivers/input/misc/mc13783-pwrbutton.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include =20 @@ -88,8 +89,74 @@ static irqreturn_t button_irq(int irq, void *_priv) return IRQ_HANDLED; } =20 -static int mc13783_pwrbutton_probe(struct platform_device *pdev) +static struct mc13xxx_buttons_platform_data __init *mc13xxx_pwrbutton_prob= e_dt( + struct platform_device *pdev) { + struct mc13xxx_buttons_platform_data *pdata; + struct fwnode_handle *child; + struct device *dev =3D &pdev->dev; + struct mc13xxx_button_devtype *devtype =3D + (struct mc13xxx_button_devtype *)platform_get_device_id(pdev)->driver_da= ta; + + pdata =3D devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return ERR_PTR(-ENOMEM); + + struct fwnode_handle *parent __free(fwnode_handle) =3D + device_get_named_child_node(dev->parent, "buttons"); + if (!parent) + return ERR_PTR(-ENODATA); + + fwnode_for_each_named_child_node(parent, child, "onkey") { + u32 idx; + u8 dbnc =3D MC13783_BUTTON_DBNC_30MS; + u16 dbnc_ms; + + if (fwnode_property_read_u32(child, "reg", &idx)) + continue; + + if (idx > devtype->button_id_max) { + dev_warn(dev, "reg out of range\n"); + continue; + } + + fwnode_property_read_u16(child, "debounce-delay-ms", &dbnc_ms); + switch (dbnc_ms) { + case 0: + dbnc =3D MC13783_BUTTON_DBNC_0MS; + break; + case 30: + dbnc =3D MC13783_BUTTON_DBNC_30MS; + break; + case 150: + dbnc =3D MC13783_BUTTON_DBNC_150MS; + break; + case 750: + dbnc =3D MC13783_BUTTON_DBNC_750MS; + break; + default: + dev_warn(dev, "invalid debounce-delay-ms value\n"); + continue; + } + + if (fwnode_property_read_u32(child, "linux,code", &pdata->b_on_key[idx])) + continue; + + if (fwnode_property_read_bool(child, "active-low")) + pdata->b_on_flags[idx] |=3D MC13783_BUTTON_POL_INVERT; + + if (fwnode_property_read_bool(child, "fsl,enable-reset")) + pdata->b_on_flags[idx] |=3D MC13783_BUTTON_RESET_EN; + + pdata->b_on_flags[idx] |=3D MC13783_BUTTON_ENABLE | dbnc; + } + + return pdata; +} + +static int __init mc13783_pwrbutton_probe(struct platform_device *pdev) +{ + struct device *dev =3D &pdev->dev; const struct mc13xxx_buttons_platform_data *pdata; struct mc13xxx *mc13783 =3D dev_get_drvdata(pdev->dev.parent); struct mc13xxx_button_devtype *devtype =3D @@ -101,9 +168,13 @@ static int mc13783_pwrbutton_probe(struct platform_dev= ice *pdev) int irq =3D 0; =20 pdata =3D dev_get_platdata(&pdev->dev); - if (!pdata) { - dev_err(&pdev->dev, "missing platform data\n"); - return -ENODEV; + if (dev->parent->of_node) { + pdata =3D mc13xxx_pwrbutton_probe_dt(pdev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } else if (!pdata) { + dev_err(dev, "missing platform data\n"); + return -ENODATA; } =20 pwr =3D devm_input_allocate_device(&pdev->dev); @@ -214,13 +285,12 @@ static const struct platform_device_id mc13xxx_pwrbut= ton_idtable[] =3D { =20 static struct platform_driver mc13783_pwrbutton_driver =3D { .id_table =3D mc13xxx_pwrbutton_idtable, - .probe =3D mc13783_pwrbutton_probe, .driver =3D { .name =3D "mc13783-pwrbutton", }, }; =20 -module_platform_driver(mc13783_pwrbutton_driver); +module_platform_driver_probe(mc13783_pwrbutton_driver, mc13783_pwrbutton_p= robe); =20 MODULE_ALIAS("platform:mc13783-pwrbutton"); MODULE_DESCRIPTION("MC13783 Power Button"); --=20 2.39.5