From nobody Fri Sep 20 11:44:17 2024 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 76D7FCA5508 for ; Wed, 13 Sep 2023 08:29:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238908AbjIMI3r (ORCPT ); Wed, 13 Sep 2023 04:29:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56542 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238907AbjIMI3p (ORCPT ); Wed, 13 Sep 2023 04:29:45 -0400 Received: from mail-ot1-x329.google.com (mail-ot1-x329.google.com [IPv6:2607:f8b0:4864:20::329]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E9AB19A0 for ; Wed, 13 Sep 2023 01:29:38 -0700 (PDT) Received: by mail-ot1-x329.google.com with SMTP id 46e09a7af769-6c0f4ad9eb1so1542697a34.1 for ; Wed, 13 Sep 2023 01:29:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1694593777; x=1695198577; darn=vger.kernel.org; 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=HdHiqmsycYyIT3/cC+/dOfMKn4pKdIqRmHbcGwVnX5s=; b=a7Wx/BSgXPtobcvlpHklykk4gqzvnAVkm5LRPsgtOBmkvFPLmh3UQY+ozUMoPzCGUo YQvPCAbloLfGYVFm7zhyyaHJgYPoPhsTC4cdvlusPVx0io7107h/Xmrg2gY7QJe8fbJh PPlMdMPAkNhvQ/B1INv2Ry8F3T1VwCcpZvmdI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694593777; x=1695198577; 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=HdHiqmsycYyIT3/cC+/dOfMKn4pKdIqRmHbcGwVnX5s=; b=HlXdm+w73jMca9Zy3M8gMgj1T3C00FomcOuaQYd7aqw0LDDprW723aWBl3S+bqIuvy 2vnIFQLOnkDEGblakUiMdiFTNv/M3B1k2mtD1FvkqYFwRChem6+4AadnvwPG87hJ/13R H9EJQ/2BFDIZObIdHrSB0AoJVBi64GIDcX9Rc3HtdkSY60duzTpkLkU00C4yLj60yfhX UzAW9359YVe7PxI2LhrUTguDoVgVHdIUKfjRx6ojSGord4Z0A7zCYvYaE7wNYsAd5z3q hoii8JRfy4SWflgBb59EGEBWJFI+a8LolMaFDfS5N9wCQV1Nj7Y9DHZ2Jc2eg5U/W4dL bzSg== X-Gm-Message-State: AOJu0YzXnmXFDBSnXdw417OhPuLzvjHLBpdVGlUegA5Ft0pLhU/Em6gq C0jnN+rrSy+xRrAh948WTnjNX+p906gFvPd9A7s= X-Google-Smtp-Source: AGHT+IEAk04XlqXXsbF3kNq6HWqUzflUESMdvKxSa9IgjgSc+RGUwJ6TTDvbnhxYl19Rn4xSY68iwA== X-Received: by 2002:a05:6358:42a1:b0:135:4003:7841 with SMTP id s33-20020a05635842a100b0013540037841mr2163234rwc.13.1694593777309; Wed, 13 Sep 2023 01:29:37 -0700 (PDT) Received: from wenstp920.tpe.corp.google.com ([2401:fa00:1:10:b24c:3be4:d952:d3b1]) by smtp.gmail.com with ESMTPSA id g6-20020aa78746000000b006901bd3a9e4sm418781pfo.104.2023.09.13.01.29.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Sep 2023 01:29:36 -0700 (PDT) From: Chen-Yu Tsai To: Lee Jones , Matthias Brugger , AngeloGioacchino Del Regno , Mark Brown Cc: Chen-Yu Tsai , Zhiyong Tao , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH v3 2/3] regulator: mt6358: Add output voltage fine tuning to fixed regulators Date: Wed, 13 Sep 2023 16:29:17 +0800 Message-ID: <20230913082919.1631287-3-wenst@chromium.org> X-Mailer: git-send-email 2.42.0.283.g2d96d420d3-goog In-Reply-To: <20230913082919.1631287-1-wenst@chromium.org> References: <20230913082919.1631287-1-wenst@chromium.org> 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" The "fixed" LDO regulators found on the MT6358 and MT6366 PMICs have either no voltage selection register, or only one valid setting. However these do have a fine voltage calibration setting that can slightly boost the output voltage from 0 mV to 100 mV, in 10 mV increments. Add support for this by changing these into linear range regulators. Some register definitions that are missing are also added. Signed-off-by: Chen-Yu Tsai Reviewed-by: AngeloGioacchino Del Regno Acked-by: Lee Jones --- This patch needs an ack from Lee. drivers/regulator/mt6358-regulator.c | 15 +++++++++++++-- include/linux/mfd/mt6358/registers.h | 6 ++++++ 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt635= 8-regulator.c index 935c7ad56c7e..ecb2cd1eb34f 100644 --- a/drivers/regulator/mt6358-regulator.c +++ b/drivers/regulator/mt6358-regulator.c @@ -123,10 +123,13 @@ struct mt6358_regulator_info { .type =3D REGULATOR_VOLTAGE, \ .id =3D MT6358_ID_##vreg, \ .owner =3D THIS_MODULE, \ - .n_voltages =3D 1, \ + .n_voltages =3D 11, \ + .vsel_reg =3D MT6358_##vreg##_ANA_CON0, \ + .vsel_mask =3D GENMASK(3, 0), \ .enable_reg =3D enreg, \ .enable_mask =3D BIT(enbit), \ .min_uV =3D volt, \ + .uV_step =3D 10000, \ }, \ .status_reg =3D MT6358_LDO_##vreg##_CON1, \ .qi =3D BIT(15), \ @@ -219,10 +222,13 @@ struct mt6358_regulator_info { .type =3D REGULATOR_VOLTAGE, \ .id =3D MT6366_ID_##vreg, \ .owner =3D THIS_MODULE, \ - .n_voltages =3D 1, \ + .n_voltages =3D 11, \ + .vsel_reg =3D MT6358_##vreg##_ANA_CON0, \ + .vsel_mask =3D GENMASK(3, 0), \ .enable_reg =3D enreg, \ .enable_mask =3D BIT(enbit), \ .min_uV =3D volt, \ + .uV_step =3D 10000, \ }, \ .status_reg =3D MT6358_LDO_##vreg##_CON1, \ .qi =3D BIT(15), \ @@ -482,8 +488,13 @@ static const struct regulator_ops mt6358_volt_table_op= s =3D { .get_status =3D mt6358_get_status, }; =20 +/* "Fixed" LDOs with output voltage calibration +0 ~ +10 mV */ static const struct regulator_ops mt6358_volt_fixed_ops =3D { .list_voltage =3D regulator_list_voltage_linear, + .map_voltage =3D regulator_map_voltage_linear, + .set_voltage_sel =3D regulator_set_voltage_sel_regmap, + .get_voltage_sel =3D mt6358_get_buck_voltage_sel, + .set_voltage_time_sel =3D regulator_set_voltage_time_sel, .enable =3D regulator_enable_regmap, .disable =3D regulator_disable_regmap, .is_enabled =3D regulator_is_enabled_regmap, diff --git a/include/linux/mfd/mt6358/registers.h b/include/linux/mfd/mt635= 8/registers.h index 3d33517f178c..5ea2590be710 100644 --- a/include/linux/mfd/mt6358/registers.h +++ b/include/linux/mfd/mt6358/registers.h @@ -262,6 +262,12 @@ #define MT6358_LDO_VBIF28_CON3 0x1db0 #define MT6358_VCAMA1_ANA_CON0 0x1e08 #define MT6358_VCAMA2_ANA_CON0 0x1e0c +#define MT6358_VFE28_ANA_CON0 0x1e10 +#define MT6358_VCN28_ANA_CON0 0x1e14 +#define MT6358_VBIF28_ANA_CON0 0x1e18 +#define MT6358_VAUD28_ANA_CON0 0x1e1c +#define MT6358_VAUX18_ANA_CON0 0x1e20 +#define MT6358_VXO22_ANA_CON0 0x1e24 #define MT6358_VCN33_ANA_CON0 0x1e28 #define MT6358_VSIM1_ANA_CON0 0x1e2c #define MT6358_VSIM2_ANA_CON0 0x1e30 --=20 2.42.0.283.g2d96d420d3-goog