From nobody Fri Oct 3 23:09:41 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 73B99261B6C; Sat, 23 Aug 2025 14:40:01 +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=1755960003; cv=none; b=CdcdRoM9ves7iPWWF9JigS8/2XjHFFLDRcTC9CW+dwPRu4xuSDECYgYQGgdoHpza9hbdBN/rIvmeDwt46piGs7URjX6prSDsg5OL6DKqvAfw1ALlKxtTxp8lVN/fq5ptl6r/mUnBhy9Nti9SL+TlcAMvyzrvdDOFeqBGHs0RYwk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755960003; c=relaxed/simple; bh=+beTnrHFYYAkbuJ6t6U2fN6G9ThH7Eu8ABD5TMXa9yM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=aieEZSejHezBqNzIdWwdtbpPjskMru+hGodH+B1IL8wsVMpawEVhlQ5forAZoF16nciK93DW8hSXFbklxleXMWVjcu5actjGpHeUiTB1ipXWrute/+QsmDzYhCk1ZaB5wo8ZRRp+rbu2q0+B+EYwzb2ZffO3p2QHhzF6UMoelb4= 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 57NEiuNq012771; Sat, 23 Aug 2025 14:44:56 GMT Received: (from akurz@localhost) by blala.de (8.15.2/8.15.2/Submit) id 57NEiuXF012766; Sat, 23 Aug 2025 14:44:56 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 v2 9/9] Input: mc13783-pwrbutton: add OF support Date: Sat, 23 Aug 2025 14:44:41 +0000 Message-Id: <20250823144441.12654-10-akurz@blala.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20250823144441.12654-1-akurz@blala.de> References: <20250823144441.12654-1-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 | 94 +++++++++++++++++++++++--- 1 file changed, 86 insertions(+), 8 deletions(-) diff --git a/drivers/input/misc/mc13783-pwrbutton.c b/drivers/input/misc/mc= 13783-pwrbutton.c index c9eea57ceedd..f06d993b231c 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 @@ -109,8 +110,82 @@ static irqreturn_t button3_irq(int irq, void *_priv) return button_irq(MC13783_IRQ_ONOFD3, _priv); } =20 -static int mc13783_pwrbutton_probe(struct platform_device *pdev) +#ifdef CONFIG_OF +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_child_node(parent, child) { + 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; +} +#else +static inline struct mc13xxx_buttons_platform_data __init *mc13xxx_pwrbutt= on_probe_dt( + struct platform_device *pdev) +{ + return ERR_PTR(-ENODEV); +} +#endif + +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 @@ -121,9 +196,13 @@ static int mc13783_pwrbutton_probe(struct platform_dev= ice *pdev) int reg =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); @@ -290,15 +369,14 @@ 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, - .remove =3D mc13783_pwrbutton_remove, .driver =3D { .name =3D "mc13783-pwrbutton", }, + .id_table =3D mc13xxx_pwrbutton_idtable, + .remove =3D mc13783_pwrbutton_remove, }; =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