From nobody Mon Feb 9 08:28:52 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C3F33C7EE23 for ; Mon, 12 Jun 2023 11:39:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232334AbjFLLjm (ORCPT ); Mon, 12 Jun 2023 07:39:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53736 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232677AbjFLLiw (ORCPT ); Mon, 12 Jun 2023 07:38:52 -0400 Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5C536584 for ; Mon, 12 Jun 2023 04:31:10 -0700 (PDT) Received: by mail-lf1-x12f.google.com with SMTP id 2adb3069b0e04-4f649db9b25so4857691e87.0 for ; Mon, 12 Jun 2023 04:31:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rasmusvillemoes.dk; s=google; t=1686569469; x=1689161469; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=iF8XkEzBn2bI8HNyXckNnxzb/f1aF1cm8iChUnH2MYQ=; b=iGaBlcQHbQKwQEkolODsOCPsDLgnefvvS+vIL7gyjiXNj6hoJ4CTU4x6g60FsJywt4 W6qfm3d1pRzijQHQ1LD2X7v7gjk3H80d5bgSHg2aMqgfaNGWq6e3mb/rgHLcnvPRIyaQ 1ovayB1mEWZ7+R6EF4N43+7JwiylhiIKRza7E= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686569469; x=1689161469; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=iF8XkEzBn2bI8HNyXckNnxzb/f1aF1cm8iChUnH2MYQ=; b=G+0xS82dHeah/2NNAMHytRt9jGQbOUW7SgZe3iJy5HhOp+sTOyP/LyqoxYyMKHU3Wq x0zqxBM3CU3bZbj0XmUgxSFaLAuQ4biv1s4bFsxRGo+AD9TDBP5U08oF1nrmVnTSwPT1 s8PLrO47l8dLb7u+ClwivEUQqpnbjALSVov0KNw1Q0uMxKYaP6JzkxQN0lBYk0cbNKfe DsavkHk2DZI1Vsu33lvwzULR5q2bSccC+HFHuijwzM4kFL1zOjwEGgFwVQxocvEz4JLO 5QbbwCKMuupdJg13djuuBtwcIoQ9Be6HbQA/YORTgHpdnYERbz/ITjYUqbLU9HWGD8W0 iePA== X-Gm-Message-State: AC+VfDw1Jsz4oz7M+G3UC2Oejwq5LsS/0JJ0CZ6IDPgGbfru4shHyWBF 8tL79y4E4FVkarMeKXQfqsktng== X-Google-Smtp-Source: ACHHUZ4hOCIN8xKvfoizozIxAJRqo5eCUyzL8mIenSNp8hPEvMwHUDV7qgJAMeF19sXoZyOIvRrI+g== X-Received: by 2002:a19:d611:0:b0:4f7:434b:70b4 with SMTP id n17-20020a19d611000000b004f7434b70b4mr1470471lfg.41.1686569469275; Mon, 12 Jun 2023 04:31:09 -0700 (PDT) Received: from prevas-ravi.prevas.se ([81.216.59.226]) by smtp.gmail.com with ESMTPSA id w26-20020a19c51a000000b004edb8fac1cesm1399320lfe.215.2023.06.12.04.31.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Jun 2023 04:31:07 -0700 (PDT) From: Rasmus Villemoes To: Alessandro Zummo , Alexandre Belloni Cc: Andy Shevchenko , devicetree@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-rtc@vger.kernel.org, Rasmus Villemoes , linux-kernel@vger.kernel.org Subject: [PATCH 4/8] rtc: isl12022: add support for trip level DT bindings Date: Mon, 12 Jun 2023 13:30:54 +0200 Message-Id: <20230612113059.247275-5-linux@rasmusvillemoes.dk> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230612113059.247275-1-linux@rasmusvillemoes.dk> References: <20230612113059.247275-1-linux@rasmusvillemoes.dk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Implement support for using the values given in the isil,trip-level[87]5-microvolt properties to set appropriate values in the VB[87]5TP bits in the PWR_VBAT register. Signed-off-by: Rasmus Villemoes --- drivers/rtc/rtc-isl12022.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/drivers/rtc/rtc-isl12022.c b/drivers/rtc/rtc-isl12022.c index ebd66b835cef..cb8f1d92e116 100644 --- a/drivers/rtc/rtc-isl12022.c +++ b/drivers/rtc/rtc-isl12022.c @@ -31,6 +31,8 @@ #define ISL12022_REG_SR 0x07 #define ISL12022_REG_INT 0x08 =20 +#define ISL12022_REG_PWR_VBAT 0x0a + #define ISL12022_REG_BETA 0x0d #define ISL12022_REG_TEMP_L 0x28 =20 @@ -42,6 +44,9 @@ =20 #define ISL12022_INT_WRTC (1 << 6) =20 +#define ISL12022_REG_VB85_MASK GENMASK(5, 3) +#define ISL12022_REG_VB75_MASK GENMASK(2, 0) + #define ISL12022_BETA_TSE (1 << 7) =20 static umode_t isl12022_hwmon_is_visible(const void *data, @@ -209,6 +214,35 @@ static const struct regmap_config regmap_config =3D { .use_single_write =3D true, }; =20 +static const u32 trip_level85[] =3D { 2125000, 2295000, 2550000, 2805000, = 3060000, 4250000, 4675000 }; +static const u32 trip_level75[] =3D { 1875000, 2025000, 2250000, 2475000, = 2700000, 3750000, 4125000 }; + +static void isl12022_set_trip_levels(struct device *dev) +{ + struct regmap *regmap =3D dev_get_drvdata(dev); + u32 level85 =3D 0, level75 =3D 0; + int ret, x85, x75; + u8 val, mask; + + device_property_read_u32(dev, "isil,trip-level85-microvolt", &level85); + device_property_read_u32(dev, "isil,trip-level75-microvolt", &level75); + + for (x85 =3D 0; x85 < ARRAY_SIZE(trip_level85) - 1; ++x85) + if (level85 <=3D trip_level85[x85]) + break; + + for (x75 =3D 0; x75 < ARRAY_SIZE(trip_level75) - 1; ++x75) + if (level75 <=3D trip_level75[x75]) + break; + + val =3D FIELD_PREP(ISL12022_REG_VB85_MASK, x85) | FIELD_PREP(ISL12022_REG= _VB75_MASK, x75); + mask =3D ISL12022_REG_VB85_MASK | ISL12022_REG_VB75_MASK; + + ret =3D regmap_update_bits(regmap, ISL12022_REG_PWR_VBAT, mask, val); + if (ret) + dev_warn(dev, "unable to set battery alarm levels: %d\n", ret); +} + static int isl12022_probe(struct i2c_client *client) { struct rtc_device *rtc; @@ -225,6 +259,7 @@ static int isl12022_probe(struct i2c_client *client) =20 dev_set_drvdata(&client->dev, regmap); =20 + isl12022_set_trip_levels(&client->dev); isl12022_hwmon_register(&client->dev); =20 rtc =3D devm_rtc_allocate_device(&client->dev); --=20 2.37.2